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82 results about "Knowledge building" patented technology

The Knowledge Building (KB) theory was created and developed by Carl Bereiter and Marlene Scardamalia for describing what a community of learners needs to accomplish in order to create knowledge. The theory addresses the need to educate people for the knowledge age society, in which knowledge and innovation are pervasive.

Knowledge graph driving type law intelligent consultation system

The invention provides a knowledge graph driving type legal intelligent consultation system. The knowledge graph driving type legal intelligent consultation system comprises a knowledge construction module used for constructing a question and answer corpus and a legal knowledge base; a legal language understanding module used for training to obtain a corresponding entity recognition model, an intention attribute recognition model and a question answer pair matching recognition model; a feature recognition module used for recognizing legal features; a knowledge association module used for searching attributes associated with the questions; a query matching module used for querying and matching answers in a knowledge base and forming a system question and answer log; and a knowledge operation module used for screening out effective questions in the system question and answer logs and updating answers matched with the effective questions into a knowledge base. According to the system andthe method, the user can be intelligently answered and guided to solve legal knowledge problems, the cost of legal consultation of common people is saved, manpower and material resources are saved, and the working efficiency of the user and legal professionals is improved.
Owner:杭州识度科技有限公司

Domain knowledge graph based on semantic triangle and query method

The invention discloses a domain knowledge graph based on a semantic triangle and a query method. The graph comprises a concept layer and an entity layer; the concept layer is composed of a set of concepts, and each concept has a unique identification and is represented by a represent word item and a candidate word item set; according to field related knowledge and the concept set of the concept layer, multiple entities corresponding to each concept are instantiated, the entity layer is formed, the entities are extensions of concepts, and each entity has a unique identification and is represented by a represent word item and a candidate word item set; an association relationship established according to the field related knowledge is set between the related concepts; an association relationship established according to the field related knowledge is set between the concept layer and the entity layer; an association relationship established according to the field related knowledge is set between the entities. By means of the method, separation of the concepts and the entities is achieved, knowledge summarization is convenient, different effects of the concepts and the entities in knowledge understanding and application are distinguished, and the query efficiency is improved.
Owner:INST OF SOFTWARE - CHINESE ACAD OF SCI

Knowledge graph driven personalized accurate recommendation method

The invention provides a knowledge graph driven personalized accurate recommendation method. The method comprises the steps of obtaining related knowledge of an article from a knowledge base accordingto historical behaviors of users, constructing a knowledge graph, initializing vector representation of each node and connection, and determining a feeling domain of each node; generating a trainingsample according to the historical behaviors of the users, and initializing vector representations of all the users and articles; obtaining the feeling domain of the corresponding entity of the articles in the training sample in the knowledge graph, and taking the feeling domains and the sample as graph neural network model input to obtain a possibility prediction value of interaction between theusers and the articles; optimizing model parameters by minimizing a loss function; and after the model optimization process is finished, sorting the prediction values of the possibility of interactionbetween a certain user and all the articles to obtain the recommendation list of the user. According to the method, the knowledge graph information is utilized, the sparsity of historical behavior information of an original user is made up, the users and the articles are described from the multi-dimensional perspective, and the personalized recommendation result is more accurate.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Multi-source heterogeneous remote sensing data association construction and multi-user data matching method

ActiveCN111666313ARealize use valueComprehensive system collectionRelational databasesCharacter and pattern recognitionPersonalizationData set
The invention discloses a multi-source heterogeneous remote sensing data association construction and multi-user data matching method. The multi-source heterogeneous remote sensing data association construction and multi-user data matching method comprises the following steps of 1, inputting a remote sensing service data set and a remote sensing product data set; 2, performing data cleaning and preprocessing; 3, performing data classification modeling; 4, performing knowledge extraction, including attribute extraction of remote sensing business data and feature extraction of remote sensing product data; 5, performing multi-source heterogeneous knowledge fusion, constructing a link relationship for the plurality of knowledge, and fusing attribute similarity of different ontology data according to metadata information extracted from the remote sensing data to construct the link relationship of a plurality of knowledge systems; 6, constructing an association relationship model; 7, miningand analyzing a large amount of collected user identities and behavior data, and constructing a user portrait label; 8, carrying out similarity calculation on the identity and behavior of the user; and 9, constructing a personalized user portrait model, and matching the personalized user portrait model with a result in the association relationship construction model.
Owner:GEOVIS CO LTD

Graph model intelligent commodity recommendation method fusing knowledge graph and user interaction

The invention discloses a graph model intelligent commodity recommendation method fusing a knowledge graph and user interaction, and the method comprises the steps: 1, collecting the historical interaction record data of a user for a commodity, constructing a user commodity interaction matrix Y for training a recommendation model, and constructing a user commodity interaction bipartite graph; 2, collecting commodity attribute features and association features between attributes, and constructing a knowledge graph by using priori knowledge; 3, constructing a recommendation model fusing the knowledge graph and user interaction, and selecting a proper loss function to optimize model parameters and feature vectors; and 4, predicting the probability that the user interacts with the non-interacted commodities in the future by using the recommendation model, and selecting the commodity with the maximum interaction probability to recommend to the user, thereby completing a commodity recommendation task. According to the method, graph convolution operation on the knowledge graph and the interactive bipartite graph is combined, and semantic and structural information carried by the knowledge graph can be more sufficiently captured, so that a more accurate recommendation effect is realized.
Owner:HEFEI UNIV OF TECH

First-aid knowledge question-answering method based on multi-modal knowledge graph and system thereof

The invention relates to a first-aid knowledge question-answering method based on a multi-modal knowledge graph and a system thereof, and the method comprises the steps: obtaining first-aid related knowledge based on the Internet, and constructing the multi-modal first-aid knowledge graph according to the first-aid related knowledge; acquiring a question input by a user, and extracting entities and relationships in the question by using the entity and relationship joint extraction model; positioning entities in the multi-modal first-aid knowledge graph according to the entities in the question, and determining matched entities; calculating the similarity of all relationships between the entities in the question and the matched entities by using a deep learning model; determining answers to the questions according to the similarity; and inputting the answer into the machine translation model according to the target language selected by the user, and outputting the translated answer. According to the first-aid knowledge question-answering method based on the multi-modal knowledge graph and the system thereof, first-aid knowledge learning can be carried out online, the learning convenience and the first-aid effect of social citizens are improved, multi-language translation can be carried out, and the first-aid efficiency is improved.
Owner:XINJIANG UNIVERSITY
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