Digital culture service platform information personalized pushing method and electronic equipment based on block chain

Abstract

The invention relates to a digital culture service platform information personalized pushing method and a block chain-based electronic device, and the method comprises the steps: obtaining request information after a user logs in a platform through an interactive interface of a digital culture service platform, obtaining the historical data of the user, obtaining a corresponding current interested culture category according to the request information, and carrying out the personalized pushing of the information. Extracting a plurality of pieces of historical attention information related to the currently interested culture category in a preset time period and the generation time of each piece of historical attention information from the historical data of the user, and performing calculation according to each piece of historical attention information and the generation time to obtain an attention degree value of each piece of historical attention information; and generating a corresponding subdivided culture category according to the historical attention information at the front preset position of the attention degree value, and displaying the subdivided culture category in a personalized information pushing area on the interactive interface. By adopting the method, accurate personalized information pushing can be realized.

Description

Technical Field

[0001] The present application relates to the field of information push technology, and in particular to a method for personalized information push on a digital cultural service platform and an electronic device based on blockchain. Background Art

[0002] Digital cultural construction is an important part of digital construction. It is an initiative to meet the people's growing spiritual and cultural needs and actively respond to the opportunities and challenges brought by the rapid development of the Internet to cultural construction. The main purpose of digital cultural services is to meet the basic cultural needs of citizens. At present, my country's digital cultural service project is still in the construction and improvement stage. The push content of cultural service information is to meet universality. The content pushed by each user on the cultural platform is exactly the same. However, the public's demand for cultural information is different, which makes cultural services inflexible and lacking characteristics.

[0003] Therefore, it is very important to build a personalized, safe and reliable cultural service platform, promote the organic unity of equalization and personalization of basic cultural services, implement the precise supply of cultural services, ensure the established goals of digital cultural services while accurately meeting the public cultural needs. Summary of the invention

[0004] Based on this, it is necessary to provide a method for personalized information push on a digital cultural service platform and a blockchain-based electronic device that can provide precise personalized services in response to the above-mentioned technical problems.

[0005] A method for personalized information push of a digital cultural service platform, the method comprising:

[0006] Obtain the request information of the user after logging into the platform through the interactive interface of the digital cultural service platform, and at the same time, obtain the historical data of the user;

[0007] Obtaining the corresponding current cultural category of interest according to the click request information, extracting multiple historical attention information related to the current cultural category of interest within a preset time period and the generation time of each historical attention information from the user's historical data;

[0008] Calculating according to each of the historical attention information and the generation time to obtain the attention level value of each of the historical attention information;

[0009] According to the historical attention information preset before the attention level value, a corresponding subdivided cultural category is generated, and the subdivided cultural category is displayed in the personalized information push area on the interactive interface.

[0010] In one embodiment, each of the historical data includes browsing information or search information;

[0011] If the request information is generated by clicking on a preset information on the interactive interface, the historical data is browsing information;

[0012] If the request information is generated by searching in a search bar on an interactive interface, the historical data is the search information.

[0013] In one embodiment, the attention level value of each historical attention information is obtained by calculation according to each of the historical attention information and the generation time, wherein the corresponding attention level value is obtained for each historical attention information, including:

[0014] Obtaining a first value according to a ratio between an average browsing time of users of the relevant browsing information and a stay time of the current user on the browsing information;

[0015] The second value corresponding to the browsing information is obtained by multiplying the first value corresponding to the browsing information by the preset browsing information weight of the browsing information; or the second value corresponding to the searching information is obtained by multiplying the number of repeated searches of the searching information by the preset searching information weight of the searching information;

[0016] Obtaining a historical interval time according to a difference between the generation time and the current time of obtaining the click request information, and obtaining a time weight value according to the historical interval time;

[0017] According to the second value of the browsed information or the retrieved information and the time weight value, the attention level value of the corresponding historical attention information is obtained.

[0018] In one embodiment, the average browsing time of users is the average time that all users stay on the display interface of the browsing information.

[0019] In one embodiment, the preset search information weight is greater than the preset browsing information weight.

[0020] In one embodiment, the first value is obtained according to the ratio between the average browsing time of users of the relevant browsing information and the stay time of the current user on the browsing information, including:

[0021] Determine whether the stay time is less than a preset minimum stay time, and if so, modify the stay time to the preset minimum stay time;

[0022] If the stay time is greater than the preset minimum stay time, determine whether the stay time is greater than the preset maximum stay time, and if so, correct the stay time to the preset maximum stay time;

[0023] The first value is obtained by comparing the determined dwelling time with the average browsing time of users.

[0024] In one embodiment, the browsing information and the search information are presented on the interactive interface in the form of keywords.

[0025] In one embodiment, when acquiring the click request information, the current location of the user is also acquired;

[0026] Sort the information related to the location by importance and release time, and then use comprehensive analysis methods to filter out key information;

[0027] The key information is displayed in a unified information push area on the interactive interface.

[0028] The present application also provides a blockchain-based electronic device, including a data layer and a network layer, and a computer program stored on the blockchain and executable on the background network layer of a digital platform. When the network layer executes the computer program, the following steps are implemented, including:

[0029] Obtain the request information of the user after logging into the platform through the interactive interface of the digital cultural service platform, and at the same time, obtain the historical data of the user;

[0030] Obtaining the corresponding current cultural category of interest according to the request information, extracting multiple historical attention information related to the current cultural category of interest within a preset time period and the generation time of each historical attention information from the historical data of the user;

[0031] Calculating according to each of the historical attention information and the generation time to obtain the attention level value of each of the historical attention information;

[0032] According to the historical attention information preset before the attention level value, a corresponding subdivided cultural category is generated, and the subdivided cultural category is displayed in the personalized information push area on the interactive interface.

[0033] The above-mentioned digital cultural service platform information personalized push method and blockchain-based electronic device obtain the request information of the user after logging into the platform through the interactive interface of the digital cultural service platform, and at the same time, obtain the historical data of the user, obtain the corresponding current cultural category of interest according to the request information, extract multiple historical attention information related to the current cultural category of interest within a preset time period from the historical data of the user, and the generation time of each historical attention information, calculate according to each historical attention information and the generation time, obtain the attention level value of each historical attention information, generate the corresponding subdivided cultural category according to the historical attention information that is preset before the attention level value, and display the subdivided cultural category in the personalized information push area on the interactive interface. This method can realize accurate personalized information push. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A flowchart of a method for personalized information push of a digital cultural service platform in one embodiment;

[0035] Figure 2 It is a structural block diagram of a device for personalized information push of a digital cultural service platform in one embodiment;

[0036] Figure 3 The internal structure diagram of a blockchain-based electronic device in one embodiment. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] In view of the problem that the push content of each cultural service information platform in the prior art meets the universality, that is, the push content received by each user is exactly the same, and lacks personalized information push, in this embodiment, Figure 1 As shown, a method for personalized information push of a digital cultural service platform is provided, comprising the following steps:

[0039] Step S100, obtaining the request information of the user after logging into the platform through the interactive interface of the digital cultural service platform, and at the same time, obtaining the historical data of the user.

[0040] Step S110, obtaining the corresponding current cultural category of interest according to the click request information, extracting multiple historical attention information related to the current cultural category of interest within a preset time period and the generation time of each historical attention information from the user's historical data.

[0041] Step S120 , calculating according to each piece of historical attention information and the time of generation, to obtain the attention level value of each piece of historical attention information.

[0042] Step S130, generating corresponding subdivided cultural categories according to the historical attention information preset before the attention level value, and displaying the subdivided cultural categories in the personalized information push area on the interactive interface.

[0043] In the present application, a method for generating personalized information push corresponding to different users through a personalized algorithm based on the user's historical interest data is provided.

[0044] In step S100, the digital cultural service platform presents information to the user through an interactive interface and receives user information.

[0045] Furthermore, the cultural information and service platform can be displayed on the main page through a website or an APP. The website is the digital cultural service PC terminal, and the APP is the digital cultural service APP. In this embodiment, the public carrier of the digital cultural service is not limited, so no further limitation is given. In addition, the digital cultural service website defined here is not just a public cultural service platform, but also includes portal websites and institution-related websites, such as XXXX Culture, XXXX Media, XXXX Channel, etc.

[0046] In this article, we take opening a website on a PC as an example to illustrate that on existing cultural service platforms, every user sees the same push content.

[0047] In this embodiment, the entire website main interface is divided into a fixed push area and a reserved push area. The fixed push area is used to push unified cultural information that is the same for all users, such as some relatively real-time and important information that needs to be known to the majority of users, such as policies, notifications, and hot spots, which need to be displayed in the unified push area. In the reserved push area, personalized display is performed according to the user's relevant information.

[0048] In this embodiment, after a registered user logs in to the platform, the user will receive the cultural information category that he / she wants to know by clicking on the interactive interface, and the click request information will be generated after the user clicks. At the same time, when the user logs in, the historical data related to the user is also obtained.

[0049] In step S110, multiple relevant historical attention information is extracted from the historical data according to the click request information. Each historical data attention information includes browsing information or search information. If the request information is generated by clicking a preset information on the interactive interface, the historical data is browsing information. If the request information is generated by searching in the search bar on the interactive interface, the historical data is search information.

[0050] In this embodiment, multiple relevant historical information is extracted from the user's previous browsing history data according to the cultural category that the user is currently interested in, and then the more interesting parts are located according to the browsing time and click volume of each historical information, so as to generate the current personalized recommendation information. In this way, the efficiency can be improved while ensuring accurate personalized recommendation.

[0051] In step S120, a calculation is performed based on each historical attention information and the generation time to obtain the attention level value of each historical attention information, wherein the corresponding attention level value is obtained for each historical attention information, including: obtaining a first value based on the ratio between the average browsing time of users of the relevant browsing information and the stay time of the current user on the browsing information, multiplying the first value corresponding to the browsing information by the preset browsing information weight of the browsing information to obtain the second value of the corresponding browsing information; or multiplying the number of repeated searches of the search information by the preset search information weight of the search information to obtain the second value of the corresponding search information, obtaining the historical interval time based on the difference between the generation time and the current time of obtaining the click request information, and obtaining the time weight value based on the historical interval time. Finally, the attention level value of the corresponding historical attention information is obtained based on the second value of the browsing information or the search information and the time weight value.

[0052] Specifically, the average browsing time of users refers to the average time that all users stay on the display interface of the browsing information.

[0053] Considering that the time when browsing information is generated may be partly due to homepage push, which is relatively random; while searching for information depends on the user's subjective initiative, the user will search only when he is interested, which can better reflect the user's own wishes and personalization. In this embodiment, the preset search information weight is greater than the preset browsing information weight.

[0054] In this embodiment, when the first value is obtained based on the ratio between the average browsing time of users of the relevant browsing information and the time the current user stays on the browsing information, the time the current user stays on the browsing information is corrected based on the preset maximum and minimum stay times, and the corrected stay time is compared with the average browsing time of the users. This avoids the situation where the user accidentally touches or clicks on a web page while browsing the web page, and the web page still stays after the user leaves, and the correction of the stay time can reduce a certain error.

[0055] Specifically, when the dwell time is corrected: first determine whether the dwell time is less than the preset minimum dwell time, if so, modify the dwell time to the preset minimum dwell time, if the dwell time is greater than the preset minimum dwell time, then determine whether the dwell time is greater than the preset maximum dwell time, if so, modify the dwell time to the preset maximum dwell time. Finally, compare the determined dwell time with the average browsing time of the user to obtain the first value.

[0056] In step S130, the historical attention information is sorted according to the attention degree value, and the subdivision categories corresponding to the preset top N historical attention information are displayed on the interactive interface as personalized information.

[0057] In this embodiment, each cultural category is a major category, and there are many subcategories under each major category. When a user clicks on a cultural category, the subcategories that the user is more interested in in the major category are further analyzed based on historical information, and pushed to the user. In this way, the content that the user is interested in can be effectively pushed to the user in a targeted manner.

[0058] In this embodiment, the subdivided categories can be displayed in a planned personalized information push area, or a personalized push area may not be reserved, and the subdivided category information that the user is interested in can be filtered out from the unified push information and displayed in a focused manner, such as by increasing the font size, making the font bold, underlining, or changing the font color, etc.

[0059] In this embodiment, both the browsing information and the search information are presented in the form of keywords on the interactive interface.

[0060] In this embodiment, when obtaining the click request information, the user's current location is also obtained, and the information related to the location is sorted according to the importance and release time, and then the key information is screened out using a comprehensive analysis method, and the key information is displayed in the unified information push area on the interactive interface. In this way, information related to the area where the user is located can be pushed according to the area where the user is located, thereby meeting the different information needs of the user.

[0061] In one embodiment, for example, on the interactive interface of a digital cultural service platform, i.e., on a web page, the horizontal brow is the platform name, and the fixed row at the bottom of the web page that does not move with the web page is a directory selection of some service functions, the middle is the title of different pushed content, and the top of the middle is an information search column, etc. These are all fixed information. In this way, the fixed area on the web page is used to ensure the universality of information and the practicality of operation, while the reserved push area is used to ensure the personalized characteristics of cultural services.

[0062] A reserved push area is set on the left, lower middle or right side of the web page. When user A enters the digital cultural service platform, information A, which is personalized information generated based on user A's historical information, is pushed in the reserved activity area. When user B enters, information B may be pushed, and so on. At the same time, the search bar also displays relevant recommendations based on user information when the user has not searched.

[0063] In the above-mentioned personalized information push method of the digital cultural service platform, the click request information of the user after logging into the platform is obtained through the interactive interface of the digital cultural service platform. At the same time, the historical data of the user is obtained, and the corresponding current cultural category of interest is obtained according to the request information. Multiple historical attention information related to the current cultural category of interest within a preset time period and the generation time of each historical attention information are extracted from the historical data of the user. The attention level value of each historical attention information is calculated according to each historical attention information and the generation time. According to the historical attention information that is preset before the attention level value, the corresponding subdivided cultural category is generated, and the subdivided cultural category is displayed in the personalized information push area on the interactive interface. This method can realize accurate personalized information push.

[0064] It should be understood that although Figure 1 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 1 At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0065] In one embodiment, Figure 2 As shown, a digital cultural service platform information personalized push device is provided, including: a user information acquisition module 200, a historical data acquisition module 210, an attention level value calculation module 220 and a personalized information generation module 230, wherein:

[0066] The user information acquisition module 200 is used to obtain the request information of the user after logging into the platform through the interactive interface of the digital cultural service platform, and at the same time, obtain the historical data of the user.

[0067] The historical data acquisition module 210 is used to obtain the corresponding current cultural category of interest according to the click request information, and extract multiple historical attention information related to the current cultural category of interest within a preset time period and the generation time of each historical attention information from the user's historical data.

[0068] The attention level value calculation module 220 is used to calculate the attention level value of each historical attention information according to each historical attention information and the generation time.

[0069] The personalized information generation module 230 is used to generate corresponding subdivided cultural categories according to the historical attention information preset before the attention level value, and display the subdivided cultural categories in the personalized information push area on the interactive interface.

[0070] For the specific limitations of the digital cultural service platform information personalized push device, please refer to the limitations of the digital cultural service platform information personalized push method mentioned above, which will not be repeated here. Each module in the above-mentioned digital cultural service platform information personalized push device can be implemented in whole or in part through software, hardware and a combination thereof. The above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0071] Considering that the centralized model is still the main method used in the digital service field, the disadvantages of this model, such as low data transmission efficiency, information asymmetry, and tampering of recorded data, are becoming increasingly prominent. In this application, an electronic device based on blockchain to realize personalized push of digital cultural service platform is also provided, such as Figure 3 As shown, in order to provide safe, accurate and efficient services according to the personalized needs of users, the electronic device includes a data layer and a network layer, as well as a computer program stored on the blockchain and executable on the background network layer of the digital platform. When the network layer executes the computer program, the steps of the above-mentioned method for personalized information push of the digital cultural service platform are implemented.

[0072] In this embodiment, when a user logs in to a blockchain-based electronic device, the user's location information is first obtained; when the user clicks on the platform to browse relevant information or searches for keywords to make a request, the corresponding information that the user often processes is obtained; then, personalized cultural content push and cultural services related to the user information are generated based on the user information.

[0073] At this time, even if different users obtain highly similar user information, the generated cultural services will also be the same, but the pushed cultural information and services are related to the user's preferences, which is equivalent to pushing cultural information that the user is interested in, so that digital cultural services can meet the different needs of various users, that is, the digital cultural service platform has the characteristics of personalized push. At the same time, blockchain can ensure the normal operation and information storage of the above method program.

[0074] The above-mentioned blockchain-based electronic devices have distinct advantages beyond the framework of traditional business systems, have transformed the infrastructure of cloud services, and liberated the closed traditional cloud service model. At the same time, the decentralized and tamper-proof characteristics of blockchain technology can ensure the integrity of data storage, form data that cannot be changed or destroyed, and fundamentally improve work efficiency. Blockchain is a distributed database. The data (or behavior) of each node of ordinary users and management users is recorded, and everyone's data (or behavior) can be tracked and restored. Blockchain also has the characteristics of transparency and openness. Anyone can query the relevant data that has been made public, which is conducive to ordinary users and management users to build a good collaboration model and improve the ability to solve problems.

[0075] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0076] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0077] Obtain the request information of the user after logging into the platform through the interactive interface of the digital cultural service platform, and at the same time, obtain the historical data of the user;

[0078] Obtaining the corresponding current cultural category of interest according to the click request information, extracting multiple historical attention information related to the current cultural category of interest within a preset time period and the generation time of each historical attention information from the user's historical data;

[0079] Calculating according to each of the historical attention information and the generation time to obtain the attention level value of each of the historical attention information;

[0080] According to the historical attention information preset before the attention level value, a corresponding subdivided cultural category is generated, and the subdivided cultural category is displayed in the personalized information push area on the interactive interface.

[0081] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0082] Obtain the request information of the user after logging into the platform through the interactive interface of the digital cultural service platform, and at the same time, obtain the historical data of the user;

[0083] Obtaining the corresponding current cultural category of interest according to the click request information, extracting multiple historical attention information related to the current cultural category of interest within a preset time period and the generation time of each historical attention information from the user's historical data;

[0084] Calculating according to each of the historical attention information and the generation time to obtain the attention level value of each of the historical attention information;

[0085] According to the historical attention information preset before the attention level value, a corresponding subdivided cultural category is generated, and the subdivided cultural category is displayed in the personalized information push area on the interactive interface.

[0086] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0087] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for personalized information push on a digital cultural service platform, characterized in that: The method comprises: Obtain the request information of the user after logging into the platform through the interactive interface of the digital cultural service platform, and at the same time, obtain the historical data of the user; Obtaining the corresponding current cultural category of interest according to the click request information, extracting multiple historical attention information related to the current cultural category of interest within a preset time period and the generation time of each historical attention information from the user's historical data; Calculating according to each of the historical attention information and the generation time to obtain the attention level value of each of the historical attention information; According to the historical attention information preset before the attention level value, a corresponding subdivided cultural category is generated, and the subdivided cultural category is displayed in the personalized information push area on the interactive interface.

2. The method for personalized information push of a digital cultural service platform according to claim 1, characterized in that: Each of the historical data includes browsing information or search information; If the request information is generated by clicking on a preset information on the interactive interface, the historical data is browsing information; If the request information is generated by searching in a search bar on an interactive interface, the historical data is the search information.

3. The method for personalized information push of a digital cultural service platform according to claim 2, characterized in that: Calculation is performed based on each of the historical attention information and the generation time to obtain the attention level value of each of the historical attention information, wherein the corresponding attention level value is obtained for each of the historical attention information, including: Obtaining a first value according to a ratio between an average browsing time of users of the relevant browsing information and a stay time of the current user on the browsing information; The second value corresponding to the browsing information is obtained by multiplying the first value corresponding to the browsing information by the preset browsing information weight of the browsing information; or the second value corresponding to the searching information is obtained by multiplying the number of repeated searches of the searching information by the preset searching information weight of the searching information; Obtaining a historical interval time according to a difference between the generation time and the current time of obtaining the click request information, and obtaining a time weight value according to the historical interval time; According to the second value of the browsed information or the retrieved information and the time weight value, the attention level value of the corresponding historical attention information is obtained.

4. The method for personalized information push of a digital cultural service platform according to claim 3, characterized in that: The average browsing time of users is the average time that all users stay on the display interface of the browsing information.

5. The method for personalized information push of a digital cultural service platform according to claim 4, characterized in that: The preset retrieval information weight is greater than the preset browsing information weight.

6. The method for personalized information push of a digital cultural service platform according to claim 5, characterized in that: A first value is obtained according to a ratio between an average browsing time of users of relevant browsing information and a stay time of the current user on the browsing information, including: Determine whether the stay time is less than a preset minimum stay time, and if so, modify the stay time to the preset minimum stay time; If the stay time is greater than the preset minimum stay time, determine whether the stay time is greater than the preset maximum stay time, and if so, correct the stay time to the preset maximum stay time; The first value is obtained by comparing the determined dwelling time with the average browsing time of users.

7. The method for personalized information push of a digital cultural service platform according to any one of claims 2 to 6, characterized in that: The browsing information and the search information are both presented on the interactive interface in the form of keywords.

8. The method for personalized information push of a digital cultural service platform according to claim 7, characterized in that: When obtaining the click request information, the current location of the user is also obtained; Sort the information related to the location by importance and release time, and then use comprehensive analysis methods to filter out key information; The key information is displayed in a unified information push area on the interactive interface.

9. Blockchain-based electronic devices, including a data layer and a network layer, and a computer program stored on the blockchain and operable on the backend network layer of a digital platform, characterized in that: When the network layer executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

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