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49 results about "Entity relation diagram" patented technology

Personalized recommendation system and method

The invention relates to the technical field of recommendation systems based on mass data and data mining, in particular to a personalized recommendation system and method. The system comprises a data interface layer, a user log system, a knowledge base, an entity relation gallery and a recommendation calculation system. The data interface layer is used for being in communication with an upper layer service system. The user log system includes all operation records of a user in an application system. The knowledge base is a set of all data in the application system and a learning set of the recommendation system. The entity relation gallery is used for storing the incidence relation between the user, data entities, properties and the like. The recommendation calculation system automatically recommends topic data which the user is interested in to the user by integrating the preference of the user and the weight of the user and according to a specific algorithm. By means of the personalized recommendation system and method, the problem of the cold start of the recommendation system and the problem that when interest of the user changes ceaselessly, the recommendation calculation complexity is increased are solved; the personalized recommendation system and method can be used for processing mass data.
Owner:GUANGDONG ELECTRONICS IND INST

Entity relationship graph display method and system

The invention provides an entity relationship graph display method and system. The system comprises a relationship construction device, a risk calculation device and an analysis device, the relation construction device is used for collecting all entities in a preset range and constructing a knowledge graph with the entities as nodes according to entity attributes of the entities and relation attributes between the entities. The risk calculation device is used for analyzing entity attributes of each entity in the knowledge graph according to a preset rule to obtain blacklist entities; obtaininga corresponding probability distribution function in a pre-stored function library according to the relationship attribute between the blacklist entity and the associated entity thereof; calculatingto obtain a risk probability value of an entity associated with the blacklist entity according to the probability distribution function; obtaining the risk probability of the corresponding entity according to the sum of the one or more risk probability values of the entity; and the analysis device is used for comparing the risk probability of each entity with a preset prompt threshold and generating prompt information according to a comparison result and the corresponding entity.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

Entity relationship graph construction method and system for network community text

The invention discloses an entity relationship graph construction method and system for network community texts, and the method comprises the steps: collecting texts in a webpage, carrying out entityrecognition and entity relationship extraction, and constructing a semantic model; collecting a text in the network community, and performing entity identification and entity relationship extraction to obtain a network entity relationship set; classifying the network entity relationship set by using a classification model to obtain entity pairs; performing hierarchical classification calculation on the entity pairs, and fusing the entity pairs into a semantic model; and carrying out visualization processing on the fused semantic model to obtain an entity relationship map. A semantic model is generated by using the pure text in the specific webpage, and the accuracy and reliability of the entity relationship are ensured. A classification algorithm and a core entity relation set are used fortraining a classification model, evaluation is carried out, and the classification reliability is improved. The evaluated network entity relationship set is added into the core semantic model, so that the richness, the stability and the automatic expansibility of the core semantic model are improved.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Attack detection method and device, electronic equipment and storage medium

The invention provides an attack detection method and apparatus, electronic equipment and a storage medium. The method comprises the steps of obtaining target instruction tracking information when a target program runs; determining a target entity relation graph between target instruction execution entities based on the target instruction tracking information; and based on a graph neural network model and the target entity relationship graph, detecting that the target program is an attack program. The defect of poor quality of attack detection training samples in the prior art is overcome by acquiring the target instruction tracking information when the target program runs, the entity relationship graph between the target instruction execution entities is determined on the basis of the target instruction tracking information, and then the target program is detected through the graph neural network model. The method can be used for automatic feature representation learning and topological mode learning, the defects that an existing attack detection method excessively depends on manual feature extraction and cannot capture a graph topological relation mode of a non-Euclidean space are overcome, and attacks are accurately and reliably detected.
Owner:INST OF INFORMATION ENG CAS

Video depth relation analysis method based on multi-modal feature fusion

PendingCN112183334AResolve Entity Appearance VariationsSolve the problem of changing relationships between entitiesImage enhancementImage analysisEntity relation diagramKnowledge graph
The invention relates to a video depth relation analysis method based on multi-modal feature fusion is based on a visual, sound and character feature fusion network of video sub-screens, scenes and character recognition; and the method comprises the following steps: firstly, dividing an input video into a plurality of screens according to scene, visual and sound models, and extracting corresponding sound and character features on each screen; secondly, identifying positions appearing in each screen according to the input scene screenshots and figure screenshots, extracting corresponding entityvisual features from the scene and the figure, and calculating visual features of a joint area for every two entity pairs; and for each entity pair, connecting the screen features, the entity features and the entity pair features, predicting a relationship between each screen entity pair through small sample learning in combination with zero sample learning, and constructing an entity relationship graph on the whole video by combining the entity relationship on each screen of the video. According to the method, three types of deep video analysis questions including knowledge graph filling, question answering and entity relationship paths can be answered by utilizing the entity relationship graph.
Owner:NANJING UNIV

Factual information coding and evaluation method for shipping news abstract generation

The invention discloses a factual information coding and evaluation method for shipping news abstract generation, and the method comprises the following steps: inputting news text information and carrying out semantic coding to obtain multi-level news text coding characteristics and information; constructing a multi-level entity based on the multi-level news text coding features and information, and constructing an entity relation graph based on the multi-level entity; extracting the factual information of different levels in the entity relation graph; splicing elements of the tetrad in the factual information to obtain a factual information code; modeling the process of judging the importance of the factual information into a specific dichotomy task for scoring, selecting multiple pieces of factual information based on scores, and converting the factual information into a factual information graph; traversing the factual information graph through an attention mechanism network and a bidirectional LSTM network to generate factual information of the text abstract; and fusing the factual information of the text abstract into a news abstract generation model, and generating a shipping news abstract through the model. And the abstract generation effect and accuracy are improved.
Owner:SHANGHAI MARITIME UNIVERSITY

Temporal model-based software configuration management method

InactiveCN106843825AOvercoming the shortcomings of fine-grained managementDefects that are not convenient for fine-grained managementSoftware maintainance/managementRequirement analysisSoftware engineeringGroup collaboration
The invention discloses a software configuration management method based on a temporal model, which includes the following steps: expanding the traditional entity relationship diagram into a temporal diagram model, and constructing a conceptual model of software development elements; designing a software configuration based on the temporal modeling method Temporal-based software configuration management database, including database logic model and physical model; combined with relational database technology and temporal database technology, according to the conceptual model of software development elements constructed by temporal modeling, design the corresponding relational database logical model; build A method for temporal extension and retrieval on Oracle10g; construct a temporal-based object dependency discovery algorithm. The present invention highlights the temporal attributes of software development elements, and is especially suitable for the requirement of independent evolution of software elements in their life cycle in the process of group collaborative software development; it can quickly retrieve the dependencies between software development elements, and monitor the impact of their changes analyze.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Transaction information identification method and system based on graph neural network, and medium

The invention discloses a transaction information identification method and system based on a graph neural network, and a medium. The method comprises the steps of obtaining a to-be-identified text; performing feature extraction and label prediction on the to-be-recognized text to obtain a labeling result of entity elements in the to-be-recognized text; constructing a corresponding entity relation graph according to the labeling result of the entity elements; performing feature learning on the entity relation graph through a graph attention network and then outputting entity node feature vectors; and performing feature multi-classification on the entity node feature vector, and outputting a transaction element category of each entity node. According to the method, the relation between the entity elements is subjected to feature learning and classification by constructing the entity relation graph, the transaction mechanism category of each entity is recognized, classification judgment can be more accurately carried out by combining the text features and the relation features of the entity elements, and the efficiency and accuracy of information classification and recognition in the current coupon transaction are effectively improved.
Owner:北京快确信息科技有限公司

Relationship-data attribute-value identity judgment method based on WEB information

The invention discloses a relationship-data attribute-value identity judgment method based on WEB information. The relationship-data attribute-value identity judgment method based on the WEB information is used for solving the technical problem that an existing attribute-value identity judgment method is poor in accuracy. According to the technical scheme, query keywords are generated with the query algorithm, information in a database is extended through WEB, and related entities are extracted with the natural language processing method and the named entity identification method; frequent item sets are extracted in searched fragments with the FPTree algorithm, and serve as nodes of graphs; relationships between entity keys are extracted with the cooccurrence relationship method and the semantic relationship method, and edges are established; a maximum common sub-graph containing to-be-judged attributes is extracted in established entity relationship graphs with the Durand-Pasari algorithm; a common mode of the maximum common sub-graph is extracted with the Durand-Pasari algorithm; the similarity degree of attribute values is judged according to the matched result of a relationship mode, and the accurate rate of the attribute-value identity judgment method is increased.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
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