Operation sequence recognition method and device, storage medium and electronic device

Abstract

The application discloses a kind of identification method and device of operation sequence, storage medium and electronic equipment.Therein, the method includes: obtaining target operation sequence generated in resource application platform by target identification, wherein each operation mode contained in target operation sequence is respectively configured with operation type label;According to operation type label, target operation sequence is split into first operation subsequence and second operation subsequence;Based on first operation subsequence, generate candidate set, wherein multiple candidates are included in candidate set, and the operation sequence arranged according to the flow direction of virtual exchange resource is included in candidate item;Using the operation mode in second operation subsequence and the candidate item in candidate set, generate the operation mode identified to target operation sequence.The present application solves the technical problem of low recognition efficiency of the existing operation sequence recognition method.

Description

Technical Field

[0001] This invention relates to the field of computers, and more specifically, to a method and apparatus for identifying operation sequences, a storage medium, and an electronic device. Background Technology

[0002] With the development of technology, managing virtual exchange resources through resource exchange platforms has become an increasingly common management method. These platforms often offer a variety of different resource application objects. In other words, by transferring virtual exchange resources to the platform, one can exchange for corresponding resource application objects, thereby adding value to the transferred virtual exchange resources.

[0003] However, some speculators transfer illegally obtained virtual exchange resources to these resource exchange platforms in order to make these illegally obtained virtual exchange resources appear legitimate through the aforementioned resource application objects.

[0004] To prevent such illegal operations, resource exchange platforms often need to monitor and identify the operation sequences involved in resource transfers. However, currently, the identification process for the operation sequences of virtual resource transfers is often done manually by specialized agencies, and automated screening is not yet possible. In other words, the operation sequence identification methods provided in related technologies suffer from low identification efficiency.

[0005] There is currently no effective solution to the above problems. Summary of the Invention

[0006] The present invention provides a method and apparatus for identifying operation sequences, a storage medium and an electronic device, to at least solve the technical problem of low identification efficiency in existing operation sequence identification methods.

[0007] According to one aspect of the present invention, a method for identifying an operation sequence is provided, comprising: acquiring a target operation sequence generated in a resource application platform by a target identifier, wherein each operation mode included in the target operation sequence is configured with an operation type label; splitting the target operation sequence into a first operation subsequence and a second operation subsequence according to the operation type label; generating a candidate set based on the first operation subsequence, wherein the candidate set includes multiple candidate options, including operation sequences arranged according to the flow direction of virtual exchange resources; and generating an operation mode identified from the target operation sequence using the operation modes in the second operation subsequence and the candidate options in the candidate set.

[0008] According to another aspect of the present invention, an operation sequence identification device is also provided, comprising: an acquisition unit, configured to acquire a target operation sequence generated in a resource application platform by a target identifier, wherein each operation mode included in the target operation sequence is configured with an operation type label; a sequence splitting unit, configured to split the target operation sequence into a first operation subsequence and a second operation subsequence according to the operation type label; a candidate set generation unit, configured to generate a candidate set based on the first operation subsequence, wherein the candidate set includes multiple candidate options, and the candidate options include operation sequences arranged according to the flow direction of virtual exchange resources; and a pattern generation unit, configured to generate an operation pattern identified by the target operation sequence using the operation modes in the second operation subsequence and the candidate options in the candidate set.

[0009] According to another aspect of the present invention, a computer-readable storage medium is also provided, wherein a computer program is stored in the computer program, wherein the computer program is configured to execute the identification method of the above-described operation sequence at runtime.

[0010] According to another aspect of the embodiments of this application, a computer program product or computer program is provided, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the identification method as described above for the sequence of operations.

[0011] According to another aspect of the present invention, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to execute the above-described method for identifying the operation sequence through the computer program.

[0012] In this embodiment of the invention, a target operation sequence is generated in a resource application platform by obtaining a target identifier, wherein each operation method in the target operation sequence is configured with an operation type label; the target operation sequence is split into a first operation subsequence and a second operation subsequence according to the operation type label; a candidate set is generated based on the first operation subsequence, wherein the candidate set includes multiple candidate options, including operation sequences arranged according to the flow direction of virtual exchange resources; using the operation methods in the second operation subsequence and the candidate options in the candidate set, an operation pattern identified by the target operation sequence is generated, thereby identifying the operation pattern of speculators illegally operating virtual resources through the target identifier, thus solving the technical problem of low identification efficiency of existing operation sequence identification methods. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the hardware environment for an optional operation sequence identification method according to an embodiment of the present invention;

[0015] Figure 2 This is a flowchart of an optional operation sequence identification method according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of an optional operation sequence identification method according to an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of another optional operation sequence identification method according to an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of another optional operation sequence identification method according to an embodiment of the present invention;

[0019] Figure 6 This is a schematic diagram of another optional operation sequence identification method according to an embodiment of the present invention;

[0020] Figure 7 This is a flowchart of another optional operation sequence identification method according to an embodiment of the present invention;

[0021] Figure 8 This is a schematic diagram of the structure of an optional operation sequence recognition device according to an embodiment of the present invention;

[0022] Figure 9 This is a schematic diagram of the structure of an optional electronic device according to an embodiment of the present invention. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] It is understood that in the specific embodiments of this application, data related to the operation information of the identified object is involved. When the above embodiments of this application are applied to specific products or technologies, it is necessary to obtain the authorization or consent of the identified object, and the collection, use and processing of related data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0026] It should be noted that, in the specific implementation of this application, the above-mentioned operation method can refer to operations such as transfer, extraction, and recharge of virtual resources performed through the platform; the above-mentioned target identifier is an identifier object on the virtual platform used to identify the operator of the above-mentioned behavior, and can be used to determine the operator who actually performs the above-mentioned operation.

[0027] According to one aspect of the present invention, a method for identifying operation sequences is provided. Optionally, as an optional implementation, the above-described method for identifying operation sequences can be applied to, but is not limited to, [examples of other methods]. Figure 1 The system shown is an operation sequence identification system consisting of server 102 and terminal device 104. For example... Figure 1As shown, server 102 is connected to terminal device 104 via network 110. This network may include, but is not limited to, wired networks and wireless networks. The wired network includes local area networks (LANs), metropolitan area networks (MANs), and wide area networks (WANs). The wireless network includes Bluetooth, Wi-Fi, and other networks enabling wireless communication. The terminal device may include, but is not limited to, at least one of the following: mobile phones (such as Android phones, iOS phones, etc.), laptops, tablets, PDAs, MIDs (Mobile Internet Devices), PADs, desktop computers, smart TVs, in-vehicle devices, etc. The terminal device may have a client installed, such as an instant messaging application client, an audio / video application client, an operation sequence recognition application client, etc. The terminal device also includes a display, a processor, and a memory. The display shows the location of the terminal device, the processor processes the data acquired by the terminal device (e.g., processing the target operation sequence generated by the target identifier in the resource application platform), and the memory stores data (e.g., operation type data, operation time data, etc., generated by the target identifier in the resource application platform). The aforementioned server can be a single server, a server cluster consisting of multiple servers, or a cloud server. The server includes a database and a processing engine.

[0028] According to one aspect of the present invention, the above-described operation sequence identification system can perform the following steps:

[0029] Step S102: Obtain the target operation sequence generated by the target identifier in the resource application platform;

[0030] Step S104: Split the target operation sequence into a first operation subsequence and a second operation subsequence according to the operation type label;

[0031] Step S106: Generate a candidate set based on the first operation sub-sequence, wherein the candidate set includes multiple candidate options, and the candidate options include operation sequences arranged according to the flow direction of virtual exchange resources;

[0032] Step S108: Using the operation methods in the second operation sub-sequence and the candidate options in the candidate set, generate the operation pattern identified for the target operation sequence;

[0033] Each operation method in the target operation sequence is configured with an operation type label.

[0034] According to one aspect of the present invention, the terminal device described above may run a client corresponding to a resource application platform, and the identified object can log in to the resource application platform to perform related operations on virtual resources. It should be understood that at least two types of operations can be performed through the resource application platform: one is the transfer of virtual resources within the relevant virtual space of the platform, and the other is the transfer of virtual resources between the platform and external systems. It should be understood that the operation methods within the platform include two levels of operations, and also include various operation information such as the transfer of virtual resources between identified objects, as well as a large amount of operation content.

[0035] In this embodiment of the invention, a target operation sequence is generated in a resource application platform by obtaining a target identifier, wherein each operation mode in the target operation sequence is configured with an operation type label; the target operation sequence is split into a first operation subsequence and a second operation subsequence according to the operation type label; a candidate set is generated based on the first operation subsequence, wherein the candidate set includes multiple candidate options, including operation sequences arranged according to the flow direction of virtual exchange resources; using the operation modes in the second operation subsequence and the candidate options in the candidate set, an operation mode identified by the target operation sequence is generated, thereby identifying the operation mode of the identified object performing illegal operations on virtual resources, thus solving the technical problem of low identification efficiency of existing operation sequence identification methods.

[0036] The above is merely an example, and no limitation is made in this embodiment.

[0037] As an optional implementation method, such as Figure 2 As shown, the method for identifying the above operation sequence includes the following steps:

[0038] S202, Obtain the target operation sequence generated by the target identifier in the resource application platform, wherein each operation method contained in the target operation sequence is configured with an operation type label;

[0039] S204, split the target operation sequence into a first operation subsequence and a second operation subsequence according to the operation type label;

[0040] S206, Generate a candidate set based on the first operation sub-sequence, wherein the candidate set includes multiple candidate options, and the candidate options include operation sequences arranged according to the flow direction of virtual exchange resources;

[0041] S208, using the operation mode in the second operation sub-sequence and the candidate options in the candidate set, generate the operation mode identified for the target operation sequence.

[0042] It is important to understand that the virtual exchange resources mentioned here can refer to virtual resources circulating on the Internet for exchange or trading, including but not limited to virtual currency, game coins, etc.

[0043] The following combination Figures 3 to 5 The above methods will be explained.

[0044] The above implementation method will be described using the above operation sequence as an example of a virtual transaction operation on an internet platform. Figure 3 As shown, this illustrates the sequence of "transaction operations" generated in the resource application platform from a set of identified objects. Figure 3 The "Action1" to "Action5" in the text are the identifiers for an optional sequence of transaction operations. Among them, "Action1" to "Action5" include five operation methods ordered by operation time.

[0045] For each operation method, there are also three labels: "Transaction Stage," "Resource Source," and "Resource Destination." Among them, "Transaction Stage" indicates the operation type, while "Resource Source" and "Resource Destination" indicate the source and destination of the operation object, respectively.

[0046] Next Figure 3 The various "operation types" are explained below. First, the "Into" type indicates that the operation transfers the object (virtual resource) from outside the resource application platform to inside the platform. The "Operate" type indicates that the object of the operation is a non-virtual resource, therefore the operation does not result in the transfer of virtual resources. The "Process" type indicates that the object of the operation is a virtual resource, and the virtual resource is transferred between different virtual spaces within the resource application platform. The "Out" type operation results in the opposite direction of virtual resource flow to "Into," indicating that the operation transfers the virtual resource from inside the resource application platform to outside. The "Complete" type indicates that the virtual resource is transferred between different virtual spaces outside the resource application platform. Based on the explanation of the above operation types, it can be understood that the tag information under the "Resource Source" and "Resource Destination" labels indicates different virtual space information, where "Bank Card" refers to the virtual space outside the resource application platform; and "Money Bag" refers to the virtual space inside the platform.

[0047] like Figure 4 As shown, the original text is categorized according to the operation type label, namely the "transaction process" label. Figure 3 The operation sequence in the code is split. For example... Figure 4As shown, as an optional approach, the above operation sequence can be split according to the type of identifier. Operations including "Into" and "Process" types can be grouped together, while those including "Operate," "Out," and "Complete" types can be grouped together, thus forming the first subsequence. Figure 4 The “entry sequence” in the text is: “Action1” and “Action3”; and the second subsequence is... Figure 4 The “outbound sequence” in the text is: “Action2”, “Action4”, and “Action5”.

[0048] like Figure 5 As shown, the operation type label will be used to... Figure 3 After the operation sequence shown is split into an "inbound subsequence" and an "outbound subsequence," a candidate set is determined based on the first subsequence, namely the "inbound subsequence." For example... Figure 5 As shown, the candidate set includes two items: one is the operation sequence "Action1" and the other is "Action1→Action3". It should be understood that the order of the second operation sequence "Action1→Action3" is determined by the flow direction of the virtual resources corresponding to the two operations. "Action1→Action3" indicates that the virtual object operated by "Action1" flows to the next virtual space through the operation of "Action3".

[0049] Finally, the operation mode is determined based on the operation methods in the second operation sub-sequence, namely the "exit account sub-sequence," and the operation sequences determined in the candidate set, i.e., as follows: Figure 5 The “trading patterns” shown include the first trading pattern “Action1→Action2→Action3→Action4” and the second trading pattern “Action5”.

[0050] The embodiments provided in this application obtain a target operation sequence generated in a resource application platform by acquiring a target identifier, wherein each operation mode in the target operation sequence is configured with an operation type label; the target operation sequence is split into a first operation subsequence and a second operation subsequence according to the operation type label; a candidate set is generated based on the first operation subsequence, wherein the candidate set includes multiple candidate options, including operation sequences arranged according to the flow direction of virtual exchange resources; using the operation modes in the second operation subsequence and the candidate options in the candidate set, an operation mode identified by the target operation sequence is generated, thereby identifying the operation mode of the identified object performing illegal operations on virtual resources, thus solving the technical problem of low identification efficiency of existing operation sequence identification methods.

[0051] As an optional approach, generating a candidate set based on the first operation subsequence includes:

[0052] S1, add the operation information of the operation mode carrying the first operation type label in the first operation subsequence to the candidate set, wherein the operation mode of the first operation type label is used to indicate the internal transfer of virtual exchange resources to the resource application platform, and the operation information includes the operation time and the destination of the virtual exchange resources being operated.

[0053] S2, using the operation mode carrying the second operation type label in the first operation sub-sequence, update the candidates in the candidate set, wherein the operation mode of the second operation type label is used to indicate the flow of virtual exchange resources within the resource application platform.

[0054] Having determined the first subsequence, a candidate set is further determined based on different operation type labels. It should be noted that the "Into" type label can be a specific form of the first operation type label mentioned above, indicating that the operation exchanges the object of the operation, i.e., the virtual resource, from outside the resource application platform to inside the resource application platform; the "Process" type label can be a specific form of the second operation type label mentioned above, indicating that the object of the operation is a virtual resource, and that the virtual resource is exchanged within different virtual spaces within the resource application platform.

[0055] Furthermore, once the first subsequence is determined, the operation information for different operation methods is processed based on the differences in type label pairs:

[0056] If the type label is determined to be "Into", the operation information for that operation method is directly added to the candidate set. It's easy to understand that this operation information can include the operation time, i.e., the specific time when the operation occurred, and the destination of the virtual exchanged resources. It's understandable that... Figure 4 For example, the "bank card" and "money bag" included under the "resource source" and "resource destination" labels are a form of representation of a specific destination for the transfer of resources.

[0057] If the type label is determined to be "Process", then the candidates in the candidate set are updated according to the operation method corresponding to this type label. For example... Figure 5 As shown, when the first subsequence is "Action1" and "Action3", the updated candidate set includes the operation sequence "Action1" and the operation sequence "Action1→Action3".

[0058] The embodiments provided in this application solve the technical problem of low accuracy in identifying operation sequences in existing methods by adding operation information carrying a first operation type label in the first operation subsequence to the candidate set; and updating the candidates in the candidate set by using the operation information carrying a second operation type label in the first operation subsequence.

[0059] As an optional approach, the above-mentioned generation of the candidate set based on the first operation subsequence includes:

[0060] S1, traverse the first subsequence of operations and perform the following operations in sequence;

[0061] S2, if the operation type label of the current operation method is the first operation type label, add the current operation method to the candidate set;

[0062] S3, if the operation type label of the current operation mode is the second operation type label, determine the source of the virtual exchange resource operated by the current operation mode; obtain a first target candidate from the candidate set, wherein the destination of the virtual exchange resource of the first target candidate is consistent with the source of the virtual exchange resource operated by the current operation mode; update the candidate set based on the first target candidate.

[0063] Continue to combine Figure 4 , Figure 5 The above embodiments will be described. For example... Figure 5 As shown, the first subsequence, the "entry subsequence," contains the operation methods "Action1" and "Action3." Following the method described above, the two existing operation method sequences are traversed:

[0064] When iterating to "Action1", such as Figure 4 As shown, its type label is "Into", which is the first operation type label, therefore, as Figure 5 As shown, the operation method "Action1" and its related operation information (other related operation information is not shown) are directly added to the candidate set to obtain item 1 "Action1";

[0065] When iterating to "Action3", such as Figure 4 As shown, its type label is "Process," thus identifying it as the second operation type label. Next, the source of its virtual exchange resources is determined. Based on the corresponding "Resource Source" label information "Money Bag A," the source of its virtual resources is "Money Bag A." Then, the first target candidate is determined from the candidate set. Since the candidate set currently only contains the operation method "Action1," it is directly based on... Figure 4The "Resource Destination" information for this item is "Money Bag A," meaning that the destination of the virtual exchange resources for this item ("Action 1") is consistent with the source of the virtual exchange resources operated on by the current operation method ("Action 3"), thus determining this operation method ("Action 1") as the first target candidate. Then, the current operation method ("Action 3") is combined with the first target candidate ("Action 1") to update and obtain item 2 in the candidate set, namely "Action 1 → Action 3." This achieves the operation of updating the candidate set.

[0066] It is important to understand that if multiple candidates exist in the candidate set beforehand, it is necessary to traverse all the existing candidates to determine the first target candidate.

[0067] The embodiments provided in this application perform the following operations sequentially by traversing a first operation sub-sequence: when the obtained operation type label of the current operation mode indicates a first operation type label, the current operation mode is added to the candidate set; when the obtained operation type label of the current operation mode indicates a second operation type label, the source of the virtual exchange resource operated by the current operation mode is determined; a first target candidate is obtained from the candidate set; and the candidate set is updated based on the first target candidate, thereby achieving the technical effect of improving the efficiency of operation sequence identification.

[0068] As an alternative approach, updating the candidate set based on the first target candidate includes:

[0069] S1, if the number of first target candidates is zero, add the operation information of the current operation method to the candidate set;

[0070] S2, if the number of first target candidates is greater than zero, append the current operation method to the end of the operation sequence of each first target candidate to update the candidate set.

[0071] It should be understood that when the number of first target candidates is zero, it indicates that there is no first target candidate whose destination of virtual exchange resources is consistent with the source of virtual exchange resources operated by the current operation mode. Therefore, the operation information of the current operation mode is directly added to the candidate set.

[0072] If the number of first target candidates is greater than zero, it indicates that there are one or more first target candidates whose destination for virtual exchange resources matches the source of virtual exchange resources operated by the current operation mode. Then, the current operation mode is added to each of the aforementioned first target candidates, and the resulting multiple target candidates are added to the candidate set, thus completing the update. For example... Figure 5 As shown, when candidate option 1 "Action1" is obtained, it is determined that candidate option 1 "Action1" is the first target candidate relative to the current operation method "Action3", and candidate option 2 "Action1→Action3" obtained after adding it to candidate option 1 "Action1" is added to the candidate set. It is easy to understand that if there are multiple first target candidates corresponding to the previous operation method "Action3", multiple new candidates will be added to update the candidate set.

[0073] Through the above embodiments provided in this application, when the number of first target candidates is equal to zero, the operation information of the current operation mode is added to the candidate set; when the number of first target candidates is greater than zero, the current operation mode is concatenated to the end of the operation sequence in each first target candidate to update the candidate set, thereby avoiding the need for manual searching for associated operation modes and achieving the technical effect of improving the efficiency of operation sequence recognition.

[0074] As an optional approach, the above-mentioned generation of operation patterns for the target operation sequence using the operation methods in the second operation sub-sequence and the candidate options in the candidate set includes:

[0075] S1, in the second operation sub-sequence, segment the sequence at the position of the operation mode of the third operation type label or the position of the operation mode of the fourth operation type label to obtain multiple operation candidate modes. The operation mode of the third operation type label is used to indicate the transfer of virtual exchange resources to the outside of the resource application platform; the operation mode of the fourth operation type label is used to indicate the transfer of virtual exchange resources through the resource application platform.

[0076] S2, determine the operation candidate mode carrying the third operation type label as the first target operation mode;

[0077] S3, generate a second target operation mode based on the operation candidate mode carrying the fourth operation type label and the candidates in the candidate set.

[0078] The following explains the operation methods for the third and fourth operation type labels mentioned above. For example... Figure 3As shown, the "Out" type label is an optional third type label. The direction of virtual resource flow caused by the operation corresponding to this label is opposite to that of "Into". This label indicates that the operation transfers virtual exchange resources from inside the resource application platform to outside the resource application platform; the "Complete" type label is also an optional third type label, indicating that virtual resources are transferred between different virtual spaces outside the resource application platform.

[0079] The following combination Figure 4 , Figure 5 The above methods will be explained in detail. For example... Figure 4 As shown, the second operation subsequence includes the operation sequences "Action2, Action4, Action5", with corresponding type labels "Operate, Out, Complete" respectively. For the third type label "Out", the operation mode of the second operation subsequence is segmented from the position of that type label, resulting in the sequences "Action2, Action4" and "Action5". Figure 5 As shown, the sequences "Action2" and "Action4" containing the third operation type label "out" are identified as the first target operation mode, i.e., "Mode 1" in the figure, and the sequence "Action5" containing the fourth operation type label "Complete" is identified as the second target operation mode, i.e., "Mode 2" in the figure.

[0080] Through the embodiments provided in this application, multiple operation candidate modes are obtained by segmenting the second operation sub-sequence at the position of the operation mode of the third operation type label or the position of the operation mode of the fourth operation type label. The operation mode of the third operation type label is used to indicate the transfer of virtual exchange resources to the outside of the resource application platform; the operation mode of the fourth operation type label is used to indicate the transfer of virtual exchange resources through the resource application platform. The operation candidate mode carrying the third operation type label is determined as the first target operation mode; a second target operation mode is generated based on the operation candidate mode carrying the fourth operation type label and the candidates in the candidate set, thereby achieving the technical effect of improving the accuracy of operation sequence identification.

[0081] As an optional approach, after segmenting the second operation subsequence at the position of the operation mode of the third operation type label or the position of the operation mode of the fourth operation type label to obtain multiple operation candidate modes, the following further applies:

[0082] S1, iterate through multiple candidate operation modes and perform the following operations in sequence:

[0083] S2, if the obtained current operation candidate mode is an operation candidate mode carrying a fourth operation type label, the current operation candidate mode is determined as the first target operation mode;

[0084] S3, if the obtained current operation candidate mode is an operation candidate mode carrying a third operation type label, determine the source of the virtual exchange resources operated by the operation mode corresponding to the current operation candidate mode; obtain a second target candidate from the candidate set, wherein the destination of the virtual exchange resources of the second target candidate is consistent with the source of the virtual exchange resources operated by the operation mode corresponding to the current operation candidate mode.

[0085] S4, Generate a second target operation mode based on the second target candidate.

[0086] Continue to combine Figure 5 The above method will be explained. For example... Figure 5 As shown, after identifying two modes, we first examine mode 1: "Action2, Action4", where the type label for "Action2" is "Out". This determines the source of the virtual exchange resources operated by the operation method corresponding to the current candidate operation mode. Specifically, the source of the virtual exchange resources operated by the operation method corresponding to the current candidate operation mode can be determined from the candidate set. Figure 4 The table shown indicates that the resource source for "Action4" in this pattern is "Money Bag B," and the resource destination for candidate option 2 "Action1→Action3" in the candidate set is also "Money Bag B." Therefore, candidate option 2 "Action1→Action3" in the candidate set is determined to be the second target candidate. Further, as... Figure 5 As shown, the operation events in candidate 2 "Action1→Action3" and the above mode 1 "Action2, Action4" are sorted according to the operation time order to obtain the second target operation mode "Action1→Action2→Action3→Action4".

[0087] Next, we need to examine mode 2: "Action5", where the type label of "Action5" is "Complete", which is the fourth operation type label, thus directly determining mode 2 as the first target operation mode.

[0088] The embodiments provided in this application involve traversing multiple operation candidate modes and performing the following operations sequentially: if the obtained current operation candidate mode is an operation candidate mode carrying a fourth operation type label, the current operation candidate mode is determined as the first target operation mode; if the obtained current operation candidate mode is an operation candidate mode carrying a third operation type label, the source of the virtual exchange resources operated by the operation mode corresponding to the current operation candidate mode is determined; a second target candidate is obtained from the candidate set, wherein the destination of the virtual exchange resources of the second target candidate is consistent with the source of the virtual exchange resources operated by the operation mode corresponding to the current operation candidate mode; a second target operation mode is generated based on the second target candidate, thereby achieving the technical effect of improving the recognition efficiency of operation sequences.

[0089] As an optional approach, the above-mentioned operation mode for generating a second target based on the second target candidate includes:

[0090] S1, obtain the time difference between the operation time corresponding to each second target candidate and the operation time corresponding to the operation mode of the current operation candidate mode;

[0091] S2, obtain the length of the operation sequence for each second target candidate;

[0092] S3, the operation sequence of the second target candidate with the shortest time difference and the shortest operation sequence length is concatenated with the operation mode corresponding to the current operation candidate mode according to the operation time to generate the second target operation mode.

[0093] It is understood that in this embodiment, when there are multiple second target candidates, the length and duration of each sequence are obtained, and then the operation sequence of the second target candidate with the shortest time difference and the shortest operation sequence length is concatenated with the operation mode corresponding to the current operation candidate mode according to the operation time to generate the second target operation mode.

[0094] The embodiments provided in this application obtain the time difference between the operation time corresponding to each second target candidate and the operation time of the operation mode corresponding to the current operation candidate mode; obtain the operation sequence length of each second target candidate; and concatenate the operation sequence of the second target candidate with the shortest time difference and the shortest operation sequence length with the operation mode corresponding to the current operation candidate mode according to the operation time to generate a second target operation mode. This achieves the technical effect of improving the accuracy of operation sequence recognition.

[0095] As an optional approach, obtaining the target operation sequence generated by the target identifier in the resource application platform includes:

[0096] S1, Obtain the operation records of the target identifier in the resource application platform;

[0097] S2, based on the flow direction of virtual exchange resources, sort the various operation methods in the operation record and configure operation type labels for each operation method to obtain the target operation sequence.

[0098] like Figure 6 As shown, to obtain Figure 6 The above method will be explained using the data manipulation of the identified object in Figure (a) as an example. Figure 6 As shown in Figure (a), this data includes the operation time, order number, transaction operation, and transaction amount of the identified object. This information can be understood as the original operation record information of the identified object.

[0099] Then, based on the flow direction of virtual exchange resources, the operation methods in the operation records are sorted, and operation type tags are configured for each operation method to obtain the target operation sequence. Specifically, the operation type tag in each identified object operation record can be determined manually. Figure 6 The diagram in Figure (b) illustrates the "transaction process" information, and the "resource source" and "resource orientation" information are determined based on the specific resource flow. Furthermore, the various operation methods in the operation record are sorted according to the flow direction of the virtual exchanged resources.

[0100] Combination Figure 6 Chinese (b) map and Figure 6 Figure (a) in the middle is used to obtain Figure 6 The target operation sequence shown in Figure (c) (not all 5 operation items are shown).

[0101] The embodiments provided in this application obtain the operation records of the target identifier in the resource application platform; according to the flow direction of virtual exchange resources, the operation methods in the operation records are sorted, and operation type labels are configured for each operation method to obtain the target operation sequence, thereby achieving the technical effect of improving the recognition accuracy of the operation sequence.

[0102] Specific combination Figure 7 The following flowchart illustrates the complete process of the operation sequence identification method provided in this application:

[0103] As in step S702, obtain authorization;

[0104] It is understood that in the specific embodiments of this application, data related to the operation information of the identified object is involved. When the above embodiments of this application are applied to specific products or technologies, it is necessary to obtain the authorization or consent of the identified object, and the collection, use and processing of related data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0105] As in step S704, data preprocessing;

[0106] The above implementation method will be described using the above operation sequence as an example of a virtual transaction operation on an internet platform. Figure 6 As shown, to obtain Figure 6 The above method will be explained using the data manipulation of the identified object in Figure (a) as an example. Figure 6 As shown in Figure (a), the data includes the operation time, order number, transaction operation, and transaction amount of the identified object. This information can be understood as the original identified object operation record information. Then, based on the flow direction of virtual exchange resources, the operation methods in the operation records are sorted, and operation type labels are configured for each operation method to obtain the target operation sequence. Specifically, the operation type label in each identified object operation record can be determined manually. Figure 6 The diagram in Figure (b) illustrates the "transaction process" information, and the "resource source" and "resource orientation" information are determined based on the specific resource flow. Furthermore, the various operation methods in the operation record are sorted according to the flow direction of the virtual exchanged resources. Combined with... Figure 6 Chinese (b) map and Figure 6 Figure (a) in the middle is used to obtain Figure 6 The target operation sequence shown in Figure (c) (not all 5 operation items are shown).

[0107] For example, in step S706, the operation sequence of the target identifier is received;

[0108] It is understandable that the operation sequence of the target identifier here is the target operation sequence obtained through preprocessing in the above steps.

[0109] Then, as in step S708, the operation sequence of the target identifier is traversed sequentially to split the operation sequence of the identifier object;

[0110] like Figure 3 The image shows a sequence of "transaction operations" generated in the resource application platform from a set of identified objects. Figure 3 The "Action1" to "Action5" in the text are a way to identify an optional operation sequence. Among them, "Action1" to "Action5" include 5 operation methods sorted by operation time.

[0111] For each operation method, there are also three labels: "Transaction Stage," "Resource Source," and "Resource Destination." Among them, "Transaction Stage" indicates the type of operation method, while "Resource Source" and "Resource Destination" indicate the source and destination of the operation object, respectively.

[0112] Next Figure 3 The various "operation types" are explained below. First, the "Into" type indicates that the operation transfers the object (virtual resource) from outside the resource application platform to inside the platform. The "Operate" type indicates that the object of the operation is a non-virtual resource, therefore the operation does not result in the transfer of virtual resources. The "Process" type indicates that the object of the operation is a virtual resource, and the virtual resource is transferred between different virtual spaces within the resource application platform. The "Out" type operation results in the opposite direction of virtual resource flow to "Into," indicating that the operation transfers the virtual resource from inside the resource application platform to outside. The "Complete" type indicates that the virtual resource is transferred between different virtual spaces outside the resource application platform. Based on the explanation of the above operation types, it can be understood that the tag information under the "Resource Source" and "Resource Destination" labels indicates different virtual space information, where "Bank Card" refers to the virtual space outside the resource application platform; and "Money Bag" refers to the virtual space inside the platform.

[0113] like Figure 4 As shown, the original text is categorized according to the operation type label, namely the "transaction process" label. Figure 3 The operation sequence in the code is split. For example... Figure 4 As shown, as an optional approach, the above operation sequence can be split according to the type of identifier. Operations including "Into" and "Process" types can be grouped together, while those including "Operate," "Out," and "Complete" types can be grouped together, thus forming the first subsequence. Figure 4 The “entry sequence” in the text is: “Action1” and “Action3”; and the second subsequence is... Figure 4 The “outbound sequence” in the text is: “Action2”, “Action4”, and “Action5”.

[0114] As in step S710, a candidate set is generated;

[0115] like Figure 5 As shown, the operation type label will be used to... Figure 3 After the operation sequence shown is split into an "inbound subsequence" and an "outbound subsequence," a candidate set is determined based on the first subsequence, namely the "inbound subsequence." For example... Figure 5As shown, the candidate set includes two items: one is the operation sequence "Action1" and the other is "Action1→Action3". It should be understood that the order of the second operation sequence "Action1→Action3" is determined by the flow direction of the virtual resources corresponding to the two operations. "Action1→Action3" indicates that the virtual object operated by "Action1" flows to the next virtual space through the operation of "Action3".

[0116] As in step S712, the operation mode identified by the target operation sequence is generated by using the operation mode in the second operation sub-sequence and the candidate options in the candidate set.

[0117] The operation mode is determined based on the operation methods in the second operation sub-sequence, namely the "exit account sub-sequence," and the operation sequences determined in the candidate set, i.e., as follows: Figure 5 The "trading patterns" shown include the first trading pattern "Action1→Action2→Action3→Action4" and the second trading pattern "Action5".

[0118] The above Figure 7 The process shown is for illustrative purposes only, and no limitations are imposed on it in this embodiment.

[0119] The embodiments provided in this application obtain a target operation sequence generated in a resource application platform by acquiring a target identifier, wherein each operation mode in the target operation sequence is configured with an operation type label; the target operation sequence is split into a first operation subsequence and a second operation subsequence according to the operation type label; a candidate set is generated based on the first operation subsequence, wherein the candidate set includes multiple candidate options, including operation sequences arranged according to the flow direction of virtual exchange resources; using the operation modes in the second operation subsequence and the candidate options in the candidate set, an operation mode identified by the target operation sequence is generated, thereby identifying the operation mode of the identified object performing illegal operations on virtual resources, thus solving the technical problem of low identification efficiency of existing operation sequence identification methods.

[0120] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, because according to the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0121] According to another aspect of the present invention, an apparatus for identifying operation sequences for implementing the above-described method for identifying operation sequences is also provided. For example... Figure 8 As shown, the device includes:

[0122] The acquisition unit 802 is used to acquire the target operation sequence generated by the target identifier in the resource application platform, wherein each operation method contained in the target operation sequence is configured with an operation type label;

[0123] The sequence splitting unit 804 is used to split the target operation sequence into a first operation subsequence and a second operation subsequence according to the operation type label;

[0124] The candidate set generation unit 806 is used to generate a candidate set based on the first operation sub-sequence, wherein the candidate set includes multiple candidate items, and the candidate items include operation sequences arranged according to the flow direction of virtual exchange resources;

[0125] The pattern generation unit 808 is used to generate an operation pattern identified in the target operation sequence by utilizing the operation mode in the second operation sub-sequence and the candidate options in the candidate set.

[0126] Optionally, in this embodiment, the implementation of each of the above-mentioned unit modules can be referred to the above-mentioned method embodiments, which will not be repeated here.

[0127] According to another aspect of the present invention, an electronic device for implementing the above-described method for identifying operation sequences is also provided. This electronic device may be... Figure 9 The terminal device or server shown. This embodiment uses this electronic device as an example for illustration. Figure 9 As shown, the electronic device includes a memory 902 and a processor 904. The memory 902 stores a computer program, and the processor 904 is configured to execute the steps of any of the above method embodiments through the computer program.

[0128] Optionally, in this embodiment, the aforementioned electronic device may be located in at least one of a plurality of network devices in a computer network.

[0129] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0130] S1, obtain the target operation sequence generated by the target identifier in the resource application platform, wherein each operation method in the target operation sequence is configured with an operation type label;

[0131] S2, split the target operation sequence into a first operation subsequence and a second operation subsequence according to the operation type label;

[0132] S3, Generate a candidate set based on the first operation sub-sequence, wherein the candidate set includes multiple candidate options, and the candidate options include operation sequences arranged according to the flow direction of virtual exchange resources;

[0133] S4. Using the operation methods in the second operation sub-sequence and the candidate options in the candidate set, generate the operation pattern identified for the target operation sequence.

[0134] Alternatively, as those skilled in the art will understand, Figure 9 The structure shown is for illustrative purposes only. Electronic devices can also be in-vehicle terminals, smartphones (such as Android phones, iOS phones, etc.), tablets, handheld computers, mobile internet devices (MIDs), PADs, and other terminal devices. Figure 9 This does not limit the structure of the aforementioned electronic devices or electronic equipment. For example, electronic devices or electronic equipment may also include components that are more... Figure 9 The more or fewer components shown (such as network interfaces, etc.), or having the same Figure 9 The different configurations shown.

[0135] The memory 902 can be used to store software programs and modules, such as the program instructions / modules corresponding to the operation sequence identification method and apparatus in this embodiment of the invention. The processor 904 executes various functional applications and data processing by running the software programs and modules stored in the memory 902, thereby realizing the above-mentioned operation sequence identification method. The memory 902 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 902 may further include memory remotely located relative to the processor 904, and these remote memories can be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. Specifically, the memory 902 may be used, but is not limited to, to store information such as the identification information of various elements in the viewing angle image and operation sequences. As an example, such as Figure 9 As shown, the memory 902 may include, but is not limited to, the acquisition unit 802, sequence splitting unit 804, candidate set generation unit 806, and pattern generation unit 808 from the operation sequence recognition device. Furthermore, it may include, but is not limited to, other module units from the operation sequence recognition device, which will not be elaborated upon in this example.

[0136] Optionally, the transmission device 906 described above is used to receive or send data via a network. Specific examples of the network described above may include wired networks and wireless networks. In one example, the transmission device 906 includes a Network Interface Controller (NIC), which can be connected to other network devices and routers via a network cable to communicate with the Internet or a local area network. In another example, the transmission device 906 is a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0137] In addition, the aforementioned electronic device also includes a display 908 and a connection bus 910 for connecting the various module components in the aforementioned electronic device.

[0138] In other embodiments, the aforementioned terminal device or server can be a node in a distributed system, wherein the distributed system can be a blockchain system, which is a distributed system formed by connecting multiple nodes through network communication. The nodes can form a peer-to-peer (P2P) network, and any form of computing device, such as a server, terminal, or other electronic device, can become a node in the blockchain system by joining this peer-to-peer network.

[0139] According to one aspect of this application, a computer program product is provided, comprising a computer program / instructions containing program code for performing the methods shown in the flowchart. In such embodiments, the computer program can be downloaded and installed from a network via a communication component, and / or installed from a removable medium. When the computer program is executed by a central processing unit, it performs various functions provided in embodiments of this application.

[0140] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0141] According to one aspect of this application, a computer-readable storage medium is provided, wherein a processor of a computer device reads computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, causing the computer device to perform the identification method of the above-described operation sequence.

[0142] Optionally, in this embodiment, the computer-readable storage medium may be configured to store a computer program for performing the following steps:

[0143] S1, obtain the target operation sequence generated by the target identifier in the resource application platform, wherein each operation method in the target operation sequence is configured with an operation type label;

[0144] S2, split the target operation sequence into a first operation subsequence and a second operation subsequence according to the operation type label;

[0145] S3, Generate a candidate set based on the first operation sub-sequence, wherein the candidate set includes multiple candidate options, and the candidate options include operation sequences arranged according to the flow direction of virtual exchange resources;

[0146] S4. Using the operation methods in the second operation sub-sequence and the candidate options in the candidate set, generate the operation pattern identified for the target operation sequence.

[0147] Optionally, in this embodiment, those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing the hardware related to the terminal device. The program can be stored in a computer-readable storage medium, which may include: flash drive, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0148] If the integrated units in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in the aforementioned computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause one or more computer devices (which may be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention.

[0149] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0150] In the several embodiments provided in this application, it should be understood that the disclosed client can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection between units or modules, and may be electrical or other forms.

[0151] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0152] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0153] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for identifying operation sequences, characterized in that, include: Obtain the target operation sequence generated in the resource application platform by the target identifier, wherein each operation method included in the target operation sequence is configured with an operation type label; The target operation sequence is divided into a first operation subsequence and a second operation subsequence based on the operation type label. The first operation subsequence includes operation modes for the first operation type label and operation modes for the second operation type label. The operation mode for the first operation type label is used to indicate the transfer of virtual exchange resources within the resource application platform. The operation mode for the second operation type label is used to indicate the circulation of virtual exchange resources within the resource application platform. The second operation subsequence includes operation modes for the third operation type label and operation modes for the fourth operation type label. The operation mode for the third operation type label is used to indicate the transfer of virtual exchange resources outside the resource application platform. The operation mode for the fourth operation type label is used to indicate the assistance in circulating virtual exchange resources through the resource application platform. A candidate set is generated based on the first operation sub-sequence, wherein the candidate set includes multiple candidate options, and the candidate options include operation sequences arranged according to the flow direction of the virtual exchange resources; The operation mode of the third operation type label or the operation mode of the fourth operation type label in the second operation sub-sequence is segmented to obtain multiple operation candidate modes; For each of the plurality of operation candidate modes, if the operation candidate mode carries the fourth operation type label, the operation candidate mode is determined as the first target operation mode; if the operation candidate mode carries the third operation type label, a second target operation mode is generated based on the target candidates in the candidate set that match the target transfer source and the operation candidate mode, wherein the target transfer source is the transfer source of the virtual exchange resource in the operation candidate mode.

2. The method according to claim 1, characterized in that, The generation of the candidate set based on the first operation subsequence includes: Add the operation information of the operation mode carrying the first operation type label in the first operation sub-sequence to the candidate set, wherein the operation information includes the operation time and the destination of the virtual exchange resource operated. The candidates in the candidate set are updated using the operation method that carries the second operation type label in the first operation subsequence.

3. The method according to claim 2, characterized in that, The generation of the candidate set based on the first operation subsequence includes: Traverse the first subsequence of operations and perform the following operations in sequence; If the operation type label of the current operation method is the first operation type label, the current operation method is added to the candidate set; If the operation type label of the current operation mode is the second operation type label, determine the source of the virtual exchange resource operated by the current operation mode; obtain a first target candidate from the candidate set, wherein the destination of the virtual exchange resource of the first target candidate is consistent with the source of the virtual exchange resource operated by the current operation mode; update the candidate set based on the first target candidate.

4. The method according to claim 3, characterized in that, The step of updating the candidate set based on the first target candidate includes: If the number of the first target candidates is zero, the operation information of the current operation method is added to the candidate set; If the number of the first target candidates is greater than zero, the current operation mode is appended to the end of the operation sequence in each of the first target candidates to update the candidate set.

5. The method according to claim 1, characterized in that... The step of generating a second target operation mode based on the target candidates that match the target flow source in the candidate set and the operation candidate mode includes: Determine the source of the virtual exchange resources operated by the operation mode corresponding to the operation candidate mode; obtain a second target candidate from the candidate set, wherein the destination of the virtual exchange resources of the second target candidate is consistent with the source of the virtual exchange resources operated by the operation mode corresponding to the operation candidate mode; The second target operation mode is generated based on the second target candidate.

6. The method according to claim 5, characterized in that, The step of generating the second target operation mode based on the second target candidate includes: Obtain the time difference between the operation time corresponding to each of the second target candidates and the operation time of the operation mode corresponding to the operation candidate mode; Obtain the length of the operation sequence for each of the second target candidates; The operation sequence in the second target candidate with the shortest time difference and the shortest operation sequence length is concatenated with the operation mode corresponding to the operation candidate mode according to the operation time to generate the second target operation mode.

7. The method according to any one of claims 1 to 6, characterized in that, The target operation sequence generated by obtaining the target identifier in the resource application platform includes: Obtain the operation records of the target identifier in the resource application platform; Based on the flow direction of virtual exchange resources, the operation methods in the operation record are sorted, and the operation type label is configured for each operation method to obtain the target operation sequence.

8. A device for recognizing operation sequences, characterized in that, include: The acquisition unit is used to acquire the target operation sequence generated by the target identifier in the resource application platform, wherein each operation method included in the target operation sequence is configured with an operation type label; A sequence splitting unit is configured to split the target operation sequence into a first operation subsequence and a second operation subsequence based on the operation type label. The first operation subsequence includes operation modes for a first operation type label and operation modes for a second operation type label. The operation mode for the first operation type label indicates the transfer of virtual exchange resources within the resource application platform, and the operation mode for the second operation type label indicates the circulation of virtual exchange resources within the resource application platform. The second operation subsequence includes operation modes for a third operation type label and operation modes for a fourth operation type label. The operation mode for the third operation type label indicates the transfer of virtual exchange resources outside the resource application platform, and the operation mode for the fourth operation type label indicates the assistance in circulating virtual exchange resources through the resource application platform. A candidate set generation unit is configured to generate a candidate set based on the first operation sub-sequence, wherein the candidate set includes multiple candidate options, and the candidate options include operation sequences arranged according to the flow direction of the virtual exchange resources; A pattern generation unit is configured to segment the second operation sub-sequence at the position of the operation mode of the third operation type label or the position of the operation mode of the fourth operation type label to obtain multiple operation candidate patterns; for each of the multiple operation candidate patterns, if the operation candidate pattern carries the fourth operation type label, the operation candidate pattern is determined as a first target operation pattern; if the operation candidate pattern carries the third operation type label, a second target operation pattern is generated based on the target candidates in the candidate set that match the target transfer source and the operation candidate pattern, wherein the target transfer source is the transfer source of the virtual exchange resource in the operation candidate pattern.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein the program, when executed, performs the method described in any one of claims 1 to 7.

10. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the method according to any one of claims 1 to 7.

11. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to execute the method described in any one of claims 1 to 7 through the computer program.

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