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149 results about "Inclusion relation" patented technology

Inclusion is a partial order . The inclusion relation can be expressed in many ways: The inclusion relation has a natural interpretation in various Boolean algebras: in the subset algebra, the subset relation; in arithmetic Boolean algebra, divisibility; in the algebra of propositions,...

Mass performance data statistical method in network element management system

The network element management system includes database server and application server. The performance reporting table is set in the database server for use in saving the reported performance data. The method includes following steps: 1) the table for storing different time grain size data is set in database server, and the grain size presents the data reporting time, and there is inclusion relation between grain sizes; 2) The application server periodically merges the reported performance data according to time grain size, and then saves it into grain size data storing table; 3) when the performance statistics is made for mass performance data in the network element management system, the application server retrieves the data storing table relating to grain size according to the grain size required by statistics.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Method and device based on reverse engineering for automatically generating software documents

The invention relates to a method and device based on reverse engineering for automatically generating software documents. The method and device based on the reverse engineering for automatically generating the software documents comprises scanning source programs, obtaining function comments, function detail information and a mutual call relation and a mutual inclusion relation among functions, identifying and abstracting function information of functions through a natural language, generating a global function call relation graph and a global function inclusion relation graph respectively based on the function information of the functions and the mutual call relation and mutual inclusion relation among functions, automatically generating software design description documents based on the function information of the functions, the function detail information and the global function call relation graph, generating a system function graph based on the function information of the functions and the global function inclusion relation graph, and generating software requirement specification documents automatically based on the system function graph. According to the method and device based on the reverse engineering for automatically generating the software documents, the software requirement specification documents and the software design description documents are generated automatically, the reverse engineering from codes to documents is achieved, and the method and device based on the reverse engineering for automatically generating the software documents is wide in application and strong in adaptability.
Owner:BEIJING INFORMATION SCI & TECH UNIV +1

Multi-task personalized web service method based on hypergraph

The invention provides a multi-task personalized web service method based on a hypergraph, comprising the following steps: relations among objects in a social network community are acquired, the relations among the objects are constructed to form a hypergraph, each object is constructed to be a node in the hypergraph, each relation among the objects is constructed to be a hyperedge in the hypergraph, the objects of the same type form nodes of the same type, the relations among the objects of the same type form the hyperedges of the same type in the hypergraph, and each hyperedge is weighted; a matrix H for characterizing an inclusion relation between the hyperedges and the nodes and a weight diagonal matrix W are acquired; the matrix H and the weight diagonal matrix W are subject to precomputation, query objects are selected in accordance with personalized service demands, and query vectors are constructed in accordance with the query objects; the other objects on the hypergraph are sequenced in accordance with correlation between the others objects and the inquiry objects; and screening is carried out on sequencing results in accordance with the personalized service demands, and the result is pushed to the user. The multi-task personalized web service method based on the hypergraph has the advantages that various types of information in the network community can be taken into account simultaneously, multidimensional relation can be processed, and non-loss of multidimensional information can be ensured.
Owner:ZHEJIANG UNIV

Fault location estimation system, fault location estimation method, and fault location estimation program for multiple faults in logic circuit

A fault location estimation system comprises single-fault-assumed diagnostic means that assumes a single fault and stores fault candidates, fault types, and detected error-observation nodes at which an error arrives from the fault candidates; error-observation node basis candidate classification means that classifies error propagating fault candidates into groups according to error-observation nodes using the fault candidates and the error-observation nodes and stores the groups as fault candidate groups; inclusion fault candidate group selection means that acquires a relation between each fault candidate group and a fault output, calculates an inclusion relation among the fault candidate groups, and, if path information on one fault candidate group includes path information on another fault candidate group, deletes the inclusion fault candidate group; inter-pattern overlapping means that calculates combinations of fault candidate groups that can reproduce a test result in all test patterns by referencing the fault candidates and the fault candidate classification result and extracts fault candidates that are common to fault candidate groups, calculated in multiple patterns, to create a new fault candidate group; and multiple-fault simulation checking means that selects fault candidates from the combinations of fault candidate groups, one from each fault candidate group, performs multiple-fault simulation, compares the simulation result with the test result, and outputs a combination of fault candidate groups which matches relatively well with the test result and has a relatively high fault possibility.
Owner:RENESAS ELECTRONICS CORP

Polygon accurate drawing method based on electronic map and application method thereof

InactiveCN106652756APrecise delineationAvoid overlapping bordersMaps/plans/chartsData connectionInclusion relation
The invention discloses a polygon accurate drawing method based on an electronic map and an application method thereof. Problems that based on the electronic map, during drawing of a single covering, rivers, roads, and fuzzy boundaries cannot be discriminated accurately, and during the drawing of a plurality of polygon coverings, the adjacent boundaries are easy to overlap and are not superposed are solved. The technical scheme provided by the invention is characterized in that by connecting a plurality of endpoints, a boundary of an electronic fence is formed on the electronic map; the corresponding longitudes and the corresponding latitudes of the plurality of endpoints in the electronic map are acquired; the longitudes and the latitudes of the plurality of endpoints are compared with the data of the longitude and latitude ranges of the natural boundaries of the electronic map, and the natural boundaries of the plurality of endpoints are determined by an inclusion relation; when the natural boundaries of the plurality of endpoints are detected, the coordinate data of the natural boundaries is extracted, and the endpoints are connected by using the coordinate data of the natural boundaries, the electronic fence is finally completed.
Owner:YTO EXPRESS CO LTD

Caching collaboration system of on-chip multi-core processor and cooperative processing method thereof

The invention discloses a cache cooperative system of an on-chip multi-core processor and a cooperative processing method thereof. The system comprises a memory and an on-chip multi-core processor coupled with the memory, and is characterized in that each processor core of the multi-core processor comprises a private L1 cache and a private L2 cache which has strict inclusion relation with the private L1 cache; all the processor cores of the multi-core processor share a centralized consistent catalog which is used for realizing consistent strategy in the L1 cache, the L2 cache and the memory. The cooperative cache system has the advantages of small hardware expense, good expandability and large system throughput and the like.
Owner:SUZHOU INST FOR ADVANCED STUDY USTC

Rapid construction and analysis method for power-grid topology relation

The invention aims at providing a rapid construction and analysis method for a power-grid topology relation. The method includes constructing the power-grid topology relation, and performing power-grid analysis and power-grid topology verification according to the power-grid topology relation, wherein constructing of the power-grid topology relation includes constructing of a topology space data structure; the power-grid analysis includes power-grid connectivity analysis, power-grid tracking analysis, power-off-area analysis and power-grid topology verification analysis; and the power-grid topology verification includes verification of subordination relation, inclusion relation and connection relation of electrical devices. The rapid construction and analysis method for the power-grid topology relation is capable of performing topology reconstruction and inspection in a real-time manner. The method not only pays close attention to processing of space data, but also pays more attention to the connection relation of the devices and expression of the power-grid topology and power-grid topology application analysis.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID

Method and device for generating hypertext markup language (HTML) procedure code

The invention discloses a method and a device for generating a hypertext markup language (HTML) procedure code. The method mainly includes: obtaining each image layer included in a picture, obtaining position attribution information of each image layer, and converting each image layer into a picture format; confirming the width of a page according to position attribution information of non-background image layers in each image layer; dividing all the non-background image layers into at least one group according to the position attribution information of the non-background image layers in all the image layers, and enabling area inclusion relations to exist among all the image layers in one group; adjusting the position attribution information of each image layer in each group according to the designed width of the picture and the width of the page; generating the HTML procedure code according to the position attribution information of each image layer and storage path information of the image layer of each picture format, and enabling each group of the image layers to correspond to one node in the HTML procedure code.
Owner:BEIJING QIHOO TECH CO LTD

Method for achieving space menu in immersive virtual reality system

The invention relates to a method for achieving a space menu in an immersive virtual reality system. The method for achieving the space menu in the immersive virtual reality system comprises: step 1, building a space menu category and a button category and instantiating an object in the system operation process according to different demands; step 2, utilizing a position tracker to detect a manipulation means position; step 3, performing mapping match to a coordinate system of an emitter emitting the position detected by the position tracker and a coordinate system of a three-dimensional space, setting the position of the menu in the three-dimensional space according to the viewpoint position and mapping a coordinate of a manipulation means into the three-dimensional space; step 4, detecting the position of the manipulation means and an inclusion relation of a menu item and controlling the system. By means of the method, the menu can be achieved in the immersive virtual reality, and a three-dimensionally displayed virtual menu can be directly operated by fingers. The stereoscopic vision and direction operation of the finger can be integrated together, the shortcoming of a traditional method can be made up, and reality sense in the system operation can be improved.
Owner:CASIC SIMULATION TECHNOLOGY CO LTD

Mobile updating method for change pattern spots in land use status change survey

The invention discloses a mobile updating method for change pattern spots in land use status change survey. The mobile updating method is characterized by comprising the steps of orderly traversing geometric object elements from a base map pattern spot data set A according to the coordination information of updated patterns to obtain the changed geometric pattern spot information, next, judging the topological relation of two geometric objects according to the topological relation of the base map pattern spots An and the changed pattern spots B, and finally, updating the mobile changed pattern spots B into the base map pattern spot data set A, wherein the topological relation includes a disjoint relation, an inclusion relation and a coverage relation, an overlapping relation, an equivalence relation, an and included relation and a covered relation. The mobile updating method for change pattern spots in land use status change survey is capable of avoiding re-measurement of field data due to inaccurate change data, saving a certain time cost and improving the working efficiency.
Owner:SOUTHEAST UNIV

Pulse sorting method based on isomorphic sequence

The invention provides a pulse sorting method based on an isomorphic sequence, and aims to solve the problem in detection of pulse groups which are practically submersed into a large quantity of pulse streams. The method comprises the following steps S1, acquiring a pulse repetition time interval sequence through first-order backward difference of the arrival time sequence of pulse streams, and quantizing the value of each element of the pulse repetition time interval sequence; S2, sieving the repetition substrings of the pulse repetition time interval sequence by using a suffix array and a maximum public prefix; S3, deleting shorter sub-strings from sub-strings having inclusion relations, and combining and jointing sub-strings having overlapping relations; S4, constructing a pulse stream arrival time difference matrix specific to the remaining pulse streams; S5, extracting a positive real number sequence of each line of the difference matrix to construct a pile of arrays, and sequencing the arrays to obtain a plurality of subsets; S6, searching for the sum of the subsets and a maximum common subsequence, and determining the position of a target pulse; S7, performing harmonic wave verification and pulse loss verification.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Webshell page detection method and device based on intra-domain page association

The invention provides a webshell page detection method and device based on intra-domain page association. The method comprises steps as follows: acquiring a script file and / or a tag language file of a dynamic page of a to-be-detected website according to a file directory of the to-be-detected website; extracting URL links in the script file and / or the tag language file of the dynamic page, and generating a URL link tag tree of the intra-domain page association, wherein the URL link tag tree comprises pages corresponding to URLs and inclusion relations among the pages; traversing the URL link tag tree and extracting first-class nodes and second-class nodes, wherein the first-class nodes are isolated nodes which contain no superior and subordinate nodes, the second-class nodes are nodes which contain subordinate nodes but do not contain superior nodes, and pages corresponding to the subordinate nodes are extra-domain pages; acquiring suspected webshell pages according to the pages corresponding to the extracted first-class and second-class nodes. Whether the webshell pages exist in a website or not can be detected accurately and quickly.
Owner:CHINA MOBILE COMM GRP CO LTD

Thing information traceability system and method with relevance perception

The invention discloses a thing information traceability system and method with relevance perception. According to the method, an information server receives RFID original data processed by middleware through a capturing interface; in combination with logical processing, RFID data are formed and stored in an information database; RFID mapping data are disseminated on a discovery server through a registration interface; sharing inquiry of the RFID data is open toward application through an inquiry interface; dissemination of the RFID mapping data of the information server is received by the discovery server through the registration interface; through relevance analysis, the RFID mapping data are stored in a mapping database; RFID mapping data sharing among different discovery servers is provided through a communication interface; inquiry of the RFID mapping data is open toward the application through the inquiry interface. On the basis that due to changes of combination, or splitting and other inclusion relations among things, the RFID data generate a dynamic state correlation, completeness of a traceability inquiry result is guaranteed.
Owner:COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI

Method for extracting surface peaks in DEM data

The invention discloses a method for extracting surface peaks in DEM data. The method includes the steps that 1, contour lines are generated in a DEM with a linear interpolation method; 2, closed contour lines are screened from the contour lines, and the inclusion relation between the closed contour lines is solved; 3, a closed contour line tree is built according to the inclusion relation between the contour lines; 4, the DEM and the contour lines are combined to solve primarily-selected surface peaks; 5, control areas of the primarily-selected surface peaks are solved through the contour line tree; 6, the fake surface peaks are removed through the parameters of the control areas of the primarily-selected surface peaks, and the final surface peaks are obtained. According to the method, the primarily-selected surface peaks are extracted through the microscopic features and the contour lines of the DEM data, the accuracy of the spatial positions of the primarily-selected surface peaks is guaranteed, and missing of the surface peaks can be avoided; the control areas of the primarily-selected surface peaks are obtained through the contour line tree, the features of factors related to the terrain of the surface peaks are analyzed in the control areas, the primarily-selected surface peaks are further screened, the fake surface peaks are removed, the true surface peaks are obtained, and the final surface peaks are obtained.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

A triangular mesh model-based automatic surface patching algorithm for a sectioned contour

The invention discloses a triangular mesh model-based automatic surface patching algorithm for a sectioned contour, and the algorithm comprises the steps: building a three-dimensional topological datastructure, and recording the geometric information and topological information of a three-dimensional model; Defining a cutting path and a cutting direction on a projection surface of the three-dimensional model, and automatically generating a cutting surface of the three-dimensional model; Performing intersection operation on the cutting surface and a triangular patch forming an object to form adiscrete line segment set; Tracking and fitting the discrete line segment set on the cutting surface to obtain a closed contour line of the object, and determining an inclusion relation of the contour line; Triangulation is carried out on the surrounding area of the closed contour line, and a profile map of the entity is generated. According to the algorithm provided by the invention, the entityprofile, the automatic face filling and the material inheritance of the three-dimensional model in the virtual reality environment are realized, the entity profile of the three-dimensional model can be accurately and visually described in the virtual reality environment, the material texture can be relatively and accurately inherited, and meanwhile, the real-time performance is relatively good.
Owner:SOUTHERN POWER GRID PEAK LOAD & FREQUENCY REGULATION GENERATING CO LTD

Touchpad, touch input method and touch input system integrating track input and key input

The invention belongs to the technical field of electronic information, and relates to a touch input method, a touch input device and a touch input system integrating track input and key input. A touchpad is characterized in that track input areas and independent blocks for key input and having the inclusion relation with the track input areas are set up in each touchpad sensing area, and by means of non-simultaneous switching, one touchpad can complete track input to realize convenient operation on a graphic interface and can complete key input to realize key information (character key information, control key information and the like) input. When the method is applied to an electronic product, less physical space can be occupied by the input device so that the product can be designed to be lighter and thinner, and the input device can also occupy less superficial area of the electronic product, so that the product can be designed to be smaller.
Owner:浙江优诺肯科技有限公司

Route searching method based on IP address scope

The invention relates to a routing lookup method based on range of an IP address, which comprises the following steps: subsets of route prefix are divided by levels according to the inclusion relation of the route prefix in a routing table; specific lookup is carried out in the range of a determined subset of the next level of route prefix included in the upper level of route prefix according to the receiving destination IP address from high to low level by level until a corresponding subset of the next level of route prefix is empty and takes a next hop port corresponding to the route prefix determined at last as a lookup result. The method of the invention adopts level division and specific lookup level by level, only has the prefix information of the destination route and no pre-calculation, reduces the range of lookup space, can reduce the complexity of data space and lookup time and be good for the realization of the process.
Owner:ZTE CORP

Robust convergence control method of heterogeneous multi-agent system

InactiveCN103279032AEasy to solveEnrich the scope of researchAdaptive controlInclusion relationAnti jamming
The invention provides a distribution type convergence control method with robust anti-jamming capacity, which aims at a complicated network system of a plurality of disturbed agents along with a heterogeneous pilot and belongs to the coordination control field of a multi-agent system. The implementation process of the method comprises the following steps of (1) judging the system inclusion relation of a following agent and the heterogeneous pilot; (2) raising a structure frame of a dynamic convergence controller Ci=(Ar, K2, Kr, K1); (3) designing feedback matrixes Ar and Kr in the controller: introducing a nominal model of the heterogeneous pilot in the agent, so that output information under specific initial conditions can be synchronous; and (4) solving gain matrixes K1 and K2 in the controller: realizing asymptotic output convergence with H infinity anti-jamming index gamma. The robust convergence controller provided by the invention is simple to design and solve, and can achieve preset control precision and effect, has very high practicability, and is suitable for convergence control with expected movement locus for civil use and military affairs.
Owner:BEIHANG UNIV

Data encryption and decryption method and devices

ActiveCN105099652AEfficient encryptionEncryption is implemented efficientlySecuring communicationInclusion relationByte
The invention provides a data encryption method. The method comprises steps: according to a mapping relation between characters in a preset character library and numerical values, a to-be-encrypted character is mapped to be a first numerical value in a first preset scale with a byte as a unit; the first numerical value serves as a numerical value in a second preset scale to be converted into a second numerical value in a third preset scale, and encrypted data are acquired, wherein a cardinal number in the second preset scale is between the cardinal number in the first preset scale and the cardinal number in the third preset scale. According to the data encryption method, an inclusion relation among mathematical symbols in different scales is delicately used for scale conversion, the to-be-encrypted character can be encrypted high efficiently, and the storage space is saved. The invention also provides a data decryption method, a data encryption device and a data decryption device.
Owner:BOYAA ONLINE GAME DEV SHENZHEN

Cluster computer middleware, cluster computer simulator, cluster computer application, and application development supporting method

A “session” is used to describe states of cluster computer middleware. The “session” is a sequence of coherent processes and satisfies the following two conditions. (a) A notification is issued to an application each time the session starts or terminates. (b) Two sessions maintain any of anteroposterior relation, inclusion relation, and no relation.
Owner:IMAGEOM

Network management method and system used for multimode system

The invention discloses a network management method used for a multimode system. The method comprises: setting a format identification; setting a format attribute for a management object class in a northbound-interface public resource model; carrying out assignment on the attribute of the management object class, wherein the format attribute assignment is a corresponding format identification; determining a management object class to be established by a network management system according to inclusion relations among management object classes, and notifying a network element management system of management commands and information of the determined management object class, wherein the attribute description of the management object classes comprises format identification information; and establishing a management object by the network element management system according to the management object class determined by the network management system, executing the management command on the management object, and sending the executed result to the network management system. The invention also discloses a network management system used for a multimode system. According to the invention, the division of format states in the multimode system is more clearly, and meanwhile, the redundant object definition is avoided, thereby being more standard.
Owner:ZTE CORP

Multi-mode string matching method and apparatus

The present invention discloses a multi-mode string matching method and apparatus, in order to improve the matching efficiency and the matching speed of multi-mode string matching. In the method, mode strings with the prefix inclusion relation in the mode strings are compressed into a mode string to obtain a compressed mode set; a prefix set is constructed according to the compression mode set; and the AC automaton is constructed according to the preset algorithm. The method comprises: for each to-be-matched text string, successively inputting characters contained in the current sliding window into the AC automaton so as to obtain at least one initial matching position; for each initial matching position, if the length of the matched string of the initial matching position is less than the preset length, adding the initial matching position and the matched string into a matching result set; if the length of the matched string of the initial matching position is equal to the preset length, adding the initial matching position into a secondary matching entry set; and carrying out secondary matching for each entry position, and adding the entry position of the secondary matching and the matched string into the matching result set.
Owner:中国移动通信集团青海有限公司

Method for parsing PDF table data and storage medium

The invention provides a method for parsing PDF table data and a storage medium. The method includes the steps that coordinates of each line segment and each character of each page PDF are obtained; cells are divided based on points of intersection of the line segments, and a rectangular coordinate corresponding to each cell is obtained; and a field block corresponding to each cell is obtained based on the inclusion relation between the coordinate of each character and each rectangular coordinate. According to the relation of the coordinates of each line segment and each character, the cells and the characters in the cells are accurately divided, a PDF table and the data in the PDF table are accurately extracted, and the accurate, convenient and automatic parsing of the PDF table is achieved.
Owner:XIAMEN MEIYA PICO INFORMATION

Information processing apparatus and memory protection method

A memory protection method of dividing the address space of a memory into two or more protection regions, and protecting the memory from an unauthorized access to a protection region by a program includes a definition step of defining the relation between protection regions, a determination step of, when the relation between the protection regions is an inclusion relation, determining that an included protection region cannot directly access an including protection region and the including protection region can directly access the included protection region, and a step of, when an access to the protection region determined to be able to be directly accessed is requested, permitting a direct access to the protection region determined to be able to be directly accessed, and prohibiting a direct access to the protection region determined to be unable to be directly accessed.
Owner:CANON KK

Social network body constructing method based on machine learning

The invention discloses a social network body constructing method based on machine learning. The method is mainly used for determining the hyponymy (namely the inclusion relation on the traditional significance) between tags on a social network and constructing a corresponding body. Tags are captured from the social network to be used as an original data set. The method comprises the steps that firstly, six characteristic values are designed for describing the similarity between any two tags, then, some tag pairs are selected from the original data set, a training data set is constructed with the combination of the similarity characteristic values, and whether the tag pairs in the training data set has the hyponymy or not is labeled artificially; then, a Random Forest machine learning model is utilized for training the training data set to obtain a classifier model; then, the classifier model is utilized for determining and labeling the hyponymy between any two tags in original data; all the tags with the hyponymy are extracted out to construct a final social network body.
Owner:SOUTHEAST UNIV

Exponential type load estimation method and device in LTE system

The invention discloses a load estimation method of a cell, a device thereof and a method for balancing after estimation. The cell load estimation method comprises the following steps: firstly, acquiring basic load information and corresponding bandwidth information of the cell and cells which have same coverage or inclusion relation with the cell, according to an exponential type estimation model, respectively determining load factors of the cell and the cells which have the coverage or inclusion relation with the cell; determining whether the cell executes the measure of reducing load by a load balancing module of the cell according to the load condition among all the cells; and after executing load balance, updating the load information of all the cells and transferring the informationon interfaces among the cells. The load estimation method utilizes the load information of cells with different bandwidths estimated by interface information comprehensively, leads the cells with different bandwidths to use the same load evaluation standard, breaks through the restriction when the bandwidth is used for evaluating the load of the cells and guarantees the fairness when the load condition is evaluated among the cells with different bandwidths.
Owner:深圳市恒程汇文化科技有限公司

Method for delivering advertisement on mobile device

The invention discloses a method for delivering an advertisement on a mobile device. The method comprises the following steps that a first application detects the starting state of at least one second application; when the first application detects that the second application is started, the first application searches for a pre-stored advertisement delivering code or an advertisement delivering application regarding the first application on the mobile device through a server, and downloads at least one corresponding advertisement material; the first application newly establishes at least one top layer window; the first application delivers the advertisement material to a top layer window for playing. The method for delivering the advertisement on the mobile device decomposes a necessary inclusion relation between a delivering main body and the advertisement delivering code, advertisement delivering only relies on the advertisement delivering control code and a relevant remote control service, and advertisement delivering can relay on relevant information of set time, contents, device states and the like of the remote control service.
Owner:JINGZAN ADVERTISING SHANGHAI CO LTD

Graph processing method and device based on rasterized superposition analysis

The embodiment of the invention provides a graph processing method and a device based on rasterized superposition analysis in order to solve a problem in the prior art that the computation efficiency rapidly decreases along with increase in the number of polygon vertices. The graph processing method comprises the steps of computing bounding rectangles of superposition computation results of two vector polygons participating in superposition computation, carrying out spatial discretization on the bounding rectangles according to the set discrete grid cell size, parallelly computing an inclusion relation between discrete grid feather points and the two polygons on a computing kernel of a general purpose computation graph processor equipment terminal by adopting a ray method, carrying out matrix element assignment filling according to the inclusion relation between the discrete grid feature points and the two polygons, extracting a discrete grid ordered sequence of result polygon boundaries by adopting a surround boundary tracing algorithm, extracting a center point or a vertex of a discrete grid of the result polygon boundaries so as to construct a result polygon overall pattern spot, computing an area error of the result polygon pattern spot, and carrying out attribute assignment on the result polygon so as to output a superposition computation result.
Owner:SHANDONG UNIV OF TECH

Log analysis system, fault cause analysis system, log analysis method, and recording medium which stores program

An objective of the present invention is to appropriately extract, or assist in extracting, a normal operation pattern from a normal operation log. A log file including information wherein a plurality of log records is ordered in time series is segmented into a plurality of log groups according to prescribed rules. A plurality of patterns which are configured by a plurality of events which are contiguous in time series is extracted from the plurality of log groups, and the patterns are associated with frequency information which represents how many log records the pattern is extracted from. The pattern to be outputted from the plurality of patterns is selected on the basis of an inclusion relation between the plurality of events which are contiguous in time series and configure a given pattern and the plurality of events which are contiguous in time series and configure other patterns, and on the basis of the frequency information which is associated with the patterns.
Owner:NEC CORP
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