Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

318 results about "Knowledge acquisition" patented technology

Knowledge acquisition is the process used to define the rules and ontologies required for a knowledge-based system. The phrase was first used in conjunction with expert systems to describe the initial tasks associated with developing an expert system, namely finding and interviewing domain experts and capturing their knowledge via rules, objects, and frame-based ontologies.

Building method and system used for knowledge obtaining model in knowledge graph

The invention provides a building method used for a knowledge obtaining model in a knowledge graph. The method comprises the steps of constructing a first training set consisting of multiple text sentences as input data and a relationship between any two entities in each sentence in the knowledge graph, as a classification result, and training a first neural network; constructing a second trainingset consisting of triples in multiple knowledge graphs, and training a second neural network; by taking input data vectors obtained in the second neural network as attention features of the first neural network, building a relationship extraction model; by taking input data vectors obtained in the first neural network as attention features of the second neural network, building a knowledge representation model; and fusing the relationship extraction model and the knowledge representation model to obtain the knowledge obtaining model in the knowledge graph. According to the method provided bythe invention, the two task models of knowledge representation and relationship extraction are integrated at the same time, and the features of the knowledge graph and free texts can be comprehensively extracted, so that the model stability and accuracy are improved.
Owner:TSINGHUA UNIV

Web-based domain knowledge map construction system and method

The invention discloses a Web-based domain knowledge map construction system and method. The system comprises a knowledge modeling subsystem, a data and entity link subsystem, a human assisted labeling subsystem and a knowledge visualization subsystem, wherein the knowledge modeling subsystem is sued for obtaining an original knowledge model according to a preset data resource, and receiving an operation instruction of an operation interface so as to construct a data mode of a knowledge map to obtain a knowledge model; the data and entity link subsystem is used for extracting knowledges according to multiple types of data and storing the extracted knowledges into the knowledge map; the human assisted labeling subsystem is used for receiving a user labeling instruction so as to change the knowledge map according to the user labeling instruction; and the knowledge visualization subsystem is used for visually displaying the knowledge model, a dynamic link between the knowledge model and an entity and the changed knowledge map. The system is capable of simply and conveniently completing the work such as knowledge modeling, knowledge obtaining and knowledge visualization, so that the domain knowledge map construction difficulty is greatly reduced and benefit is brought to enhance the accuracy of domain knowledge maps.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products