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103 results about "Knowledge engineering" patented technology

Knowledge engineering (KE) refers to all technical, scientific and social aspects involved in building, maintaining and using knowledge-based systems.

Automatic legal knowledge graph construction method

The invention provides an automatic legal knowledge graph construction method, and aims at automatically constructing legal knowledge graphs according to trial documents. The method comprises the following steps of carrying out stop word removal and word segmentation on obtained trial documents; respectively extracting subject words of three types of trial documents, carrying out part-of-speech tagging and filtration on the extracted subject words, and extracting noun or noun phrase subject word to serve as entity concepts of a legal knowledge graph according to the filtration result; obtaining words similar with each extracted noun or noun phrase subject word, carrying out part-of-speech tagging and filtration on the obtained similar words, and extracting noun or noun phrase subject word similar words as entity concepts of the legal knowledge graph according to the filtration result; and constructing the legal knowledge graph according to the extracted subject word entity concepts, the similar word entity concepts and triple structures such as subject word-subject relationship-subject word and subject word-similar relationship-similar word formed by a relationship between the subject word entity concepts and the similar word entity concepts. The invention relates to the technical field of knowledge engineering.
Owner:UNIV OF SCI & TECH BEIJING

Multi-modal knowledge graph construction method

PendingCN112200317ARich knowledge typeThree-dimensional knowledge typeKnowledge representationSpecial data processing applicationsFeature extractionEngineering
The invention discloses a multi-modal knowledge graph construction method, and relates to the knowledge engineering technology in the field of big data. The method is realized through the following technical scheme: firstly, extracting multi-modal data semantic features based on a multi-modal data feature representation model, constructing a pre-training model-based data feature extraction model for texts, images, audios, videos and the like, and respectively finishing single-modal data semantic feature extraction; secondly, projecting different types of data into the same vector space for representation on the basis of unsupervised graph, attribute graph, heterogeneous graph embedding and other modes, so as to realize cross-modal multi-modal knowledge representation; on the basis of the above work, two maps needing to be fused and aligned are converted into vector representation forms respectively, then based on the obtained multi-modal knowledge representation, the mapping relation of entity pairs between knowledge maps is learned according to priori alignment data, multi-modal knowledge fusion disambiguation is completed, decoding and mapping to corresponding nodes in the knowledge maps are completed, and a fused new atlas, entities and attributes thereof are generated.
Owner:10TH RES INST OF CETC

Strategic method for process control

A strategic method for process control wherein the method includes, for a predetermined process juncture, the steps of: (A) defining an interconnection cell having associated therewith (i) at least one set of input data or at least one set of process control parameters, and (ii) at least one set of output data; (B) assigning at least one boundary value to at least one set of the sets associated with the defined interconnection cell; (C) using the assigned at least one boundary value, forming a plurality of discrete respective set combinations, and (D) for the interconnection cell, processing data from the plurality of respective formed set combinations into respective corresponding data record clusters.
The strategic method for process control is a continuation-in-part of a Knowledge-Engineering Protocol-Suite, (U.S. patent application Ser. No. 09/588,681 filed on 7 Jun. 2000) incorporated herein by reference, that generally includes methods and systems, apparatus for search-space organizational validation, and appurtenances for use therewith. The protocol-suite includes a search-space organizational validation method for synergistically combining knowledge bases of disparate resolution data-sets, such as by actual or simulated integrating of lower resolution expert-experience based model-like templates to higher resolution empirical data-capture dense quantitative search-spaces. The protocol-suite includes facile algorithmic tools for use with the method.
Owner:ADA ANALYTICS ISRAEL

Knowledge-engineering-based automatic scheme generation and evaluation system and method

The invention discloses a knowledge-engineering-based automatic scheme generation and evaluation system. The automatic scheme generation and evaluation system comprises a project management subsystem, a demand management subsystem, a product database subsystem, a collaborative design subsystem and an electronic product design technology platform, wherein the project management subsystem is in charge of providing solving ideas and tools; the demand management subsystem is used for decomposing the product design demand, converting into task indicators and multi-level task sequences, realizing dependence mapping and providing real-time monitoring of the indicators; the product database subsystem is used for managing design data and setting data standards and regulations; the collaborative design subsystem plays the role of a bridge; the electronic product design technology platform is in charge of generalizing and managing typical data, design methods and digital prototype models of all products and pushing information to the collaborative design subsystem. A method comprises the steps of knowledge extraction and classification, professional knowledge base setting, knowledge-engineering-based platform construction and automatic design scheme generation and evaluation. According to the invention, knowledge engineering is introduced into the electronic product design, so that the reuse rate of knowledge and other resources is effectively improved, automatic generation and evaluation of product schemes are realized, the product research and development time is shortened and the intelligence degree is high.
Owner:SICHUAN UNIV +1

Semantic meaning-based specific task text keyword extraction method

ActiveCN107193803AAchieve characterizationRealize the characterization of semantic similaritySemantic analysisSpecial data processing applicationsSemantic vectorText mining
The invention discloses a semantic meaning-based specific task text keyword extraction method, and belongs to the field of natural language processing. The method comprises the following steps of: firstly, extracting a subject word of a certain specific task in a related text, and converting the subject word into a semantic vector by utilizing a semantic representation technology; secondly, carrying out word segmentation, part-of-speech tagging and screening on a text of a to-be-extracted keyword by utilizing a word segmentation tool; thirdly, converting the screened words into semantic vectors and calculating a similarity between each screened word and the subject word of the specific task; and finally, constructing a word network chart by taking the words as nodes, and calculating the importance degree of each word on the basis of the word similarity so as to extract important words in the word network chart. The method disclosed by the invention comprehensively considers the semantic features and structural features of the words in the texts, and is suitable for the extraction of specific-task oriented text keywords, so as to realize a function of obtaining important information from the texts and provide important technical support for the field of text mining, natural language processing, knowledge engineering and the like.
Owner:北京东方科诺科技发展有限公司

Cross-language multi-source vertical domain knowledge graph construction method

ActiveCN112199511AImplement automatic translationImplement pre-labeled trainingNatural language translationSpecial data processing applicationsData setTheoretical computer science
The invention discloses a cross-language multi-source vertical domain knowledge graph construction method, and relates to the technical field of knowledge engineering. According to the technical scheme, the method comprises the steps that vertical domain translation completes parallel corpus construction through content and link analysis according to input cross-language texts, domain dictionaries, domain term libraries, domain materials and data, and automatic translation of foreign language texts is achieved based on a trained translation model on the basis of preprocessing; domain knowledgepre-annotation training realizes active learning annotation based on text word segmentation and text clustering, to-be-annotated corpus screening based on an analysis topic is completed, and a confirmed service annotation data set is generated; an optimal algorithm is selected, and semantic feature extraction and entity relationship extraction are completed based on deep learning in combination with vertical domain translation data and an actual scene; and domain knowledge fusion and disambiguation are performed on knowledge from different sources through network equivalent entity combination, so that the cross-language multi-source vertical domain knowledge graph can be obtained.
Owner:10TH RES INST OF CETC

Automatic construction method for legal instrument and action cause classifier

ActiveCN107122451AEfficient and automatic determinationAccurate and automatic determinationSemantic analysisSpecial data processing applicationsKnowledge engineeringData mining
The invention provides an automatic construction method for a legal instrument and action cause classifier and relates to the field of knowledge engineering technology. The classifier is high in classification efficiency and high in accuracy. The method comprises the steps that legal instruments of multiple types of action causes are acquired, and a test corpus of each type of action causes is determined; stop words and segmented words are removed from each type of test corpus; a basic keyword of each type of action causes is determined according to a word segmentation result; word vector training is performed on each type of test corpus according to the word segmentation result, the keywords are expanded, and an expanded keyword list of each type of action causes is determined according to the expanded keywords and the determined basic keywords; a to-be-classified legal instrument is input, stop words and segmented words are removed from the input to-be-classified legal instrument, and word vector training is performed on the input to-be-classified legal instrument; and a semantic similarity sum of the to-be-classified legal instrument and each type of expanded keyword list is calculated according to a word vector training result of the to-be-classified legal instrument, and the action cause corresponding to the maximum semantic similarity sum is taken to serve as the action cause corresponding to the to-be-classified legal instrument.
Owner:UNIV OF SCI & TECH BEIJING

Similar variable precision rough set model-based knowledge pushing rule extraction method

The invention discloses a similar variable precision rough set model-based knowledge pushing rule extraction method and belongs to the field of knowledge engineering. The method comprises the steps of extracting and processing user behavior data, establishing a decision table comprising condition attributes and decision attributes, obtaining the importance of the condition attributes relative to the decision attributes by utilizing an information entropy theory, and based on this, performing reduction on the decision table by utilizing the importance of the condition attributes relative to the decision attributes to obtain a reduced decision table; extracting a decision rule containing a certainty factor based on the reduced decision table; and performing verification assessment on a pushing rule, and after the rule assessment is passed, performing knowledge pushing by utilizing the rule, so that the knowledge pushing precision is improved. According to the method, the problem that the rough set model is excessively rigorous can be solved; the fault-tolerant capability of the rough set model can be improved; the method is suitable for a knowledge pushing rule extraction situation; and in addition, the high-quality knowledge pushing rule can be obtained, the knowledge pushing precision can be improved, the knowledge obtaining cost can be reduced, and the knowledge obtaining efficiency can be improved.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Vehicle electronic information system intrusion detection method based on SOEKS and implementation

The invention discloses a vehicle electronic information system intrusion detection method based on SOEKS and the implementation, belonging to the technical fields of knowledge engineering, vehicle network communication and security. A main control module is arranged on the security gateway of the vehicle CAN bus, and the main control module comprises a microprocessor and an external memory; and the external memory is used to store the experience set knowledge structure data. The vehicle electronic information system intrusion detection method comprises the following steps: processing and analyzing the data on all buses by means of the trained experience set knowledge structure, and using the rules and constraints in the experience set constantly in the process of processing and analysis to determine whether the current information is correct and effective; and detecting the intrusion if the change of a node value in the analysis results deviates from the normal range or the incidencerelationship between multiple nodes is far away from the normal range. According to the invention, if abnormal data is found, the driver will be notified in time to prevent the dangerous driving of the vehicle, therefore, the safety of the person and the property of the driver can be ensured.
Owner:CHENGDU UNIV OF INFORMATION TECH

Use method of combat knowledge system and combat decision auxiliary method

The invention relates to a use method of a combat knowledge system based on knowledge engineering and a combat decision auxiliary method. The use method comprises the following steps: mining a new rule from battlefield experiment data by using a data mining engine; carrying out object and attribute extraction on the new rule and the existing rule through a rule engine so as to construct a combat rule base; performing rule reasoning calling on the combat rule base by utilizing a Rete algorithm through the rule engine to generate a reasoning result; forming a knowledge ontology library from the acquired battlefield experiment data by three elements of entities, relationships and attributes through a knowledge engine; and performing knowledge retrieval and knowledge recommendation on the multi-party information by using the knowledge engine according to the knowledge ontology library and a reasoning result generated by the rule engine so as to generate combat decision support. According to the invention, deeper analysis, research and judgment work is carried out on the combat factor information, so that weapons are associated with each piece of intelligence information, the data of informatization combat are fused and standardized, and the command efficiency is improved.
Owner:CHENGDU CALABAR INFORMATION TECH

Engineering technical and economic knowledge retrieval platform based on knowledge graph and method thereof

The invention relates to an engineering technical and economic knowledge retrieval platform based on a knowledge graph and method thereof. The platform comprises a technical and economic knowledge library, a semantic processing unit, and an interaction unit, and the technical and economic knowledge library and the interaction unit are connected with the semantic processing unit. The technical andeconomic knowledge library is used for storing project management knowledge, technical and economic knowledge, cost knowledge, engineering technology knowledge, law and regulation knowledge and actualcases; the semantic processing unit generates a corresponding retrieval formula according to a retrieval statement input by a user so as to retrieve from the technical and economic ontology knowledgebase to obtain a related knowledge graph; and the interaction unit is used for a user to carry out input operation of retrieval statements, and visually presenting the related knowledge graph obtained by retrieval to the user. Compared with the prior art, the technical and economic knowledge library is constructed, semantic retrieval is combined, a user can accurately and rapidly retrieve neededknowledge, and engineering professional cooperation efficiency can be improved.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO

Method and device for extracting relationships among entities in traditional Chinese medicine documents

The invention provides a method and a device for extracting a relationship between entities in traditional Chinese medicine documents, which can improve the accuracy of extracting a relationship typebetween entities. The method comprises the following steps: for a to-be-processed traditional Chinese medicine literature, obtaining an entity type and an entity-to-entity relationship type marked forpartial contents of the to-be-processed traditional Chinese medicine literature; training a named entity recognition model according to the marked entity type; utilizing the trained named entity recognition model to carry out named entity recognition on the to-be-processed traditional Chinese medicine literature, and obtaining a candidate entity pair and a feature table with a relation accordingto a named entity recognition result; according to the obtained candidate entity pairs with the relations and a feature table, using a factor graph model to carry out statistical reasoning on graph probabilities, learning entity relation features globally, and obtaining the probability of the relations between entities; and determining the type of the relationship between the entities according tothe obtained probability of the relationship between the entities in combination with a dependency analysis method for extracting the fact triple and the marked relationship type between the entities. The invention relates to the field of knowledge engineering.
Owner:UNIV OF SCI & TECH BEIJING
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