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31 results about "Knowledge evaluation" patented technology

Photovoltaic power plant output power prediction method based on weighted FCM clustering algorithm

The invention relates to a photovoltaic power plant output power prediction method based on a weighted FCM clustering algorithm. The method provided by the invention comprises the steps that a weather data sample which matches a meteorological data sample to be predicted and the corresponding photovoltaic power plant output power are selected from the existing photovoltaic power plant operation database and are used as a reference sample; through knowledge evaluation, a typical data matrix is selected and is combined with the meteorological data sample to be predicted; after normalization, a final standard sample matrix is formed and is used as an input variable of the algorithm; and after property-weighted FCM clustering algorithm iteration, output power corresponding to the meteorological data sample to be predicted is acquired. According to the invention, the shortcomings of complex meteorological factors, unbalanced influence on the output power, meteorological data randomness and uncertainty and the like are overcome; the method has the advantages of fast prediction and high accuracy; a prediction result provides a data support for rational resource dispatching and scientific overall planning of the power industry; and good economic and social benefits are acquired.
Owner:XUJI GRP +1

Self-adaptive network security knowledge evaluation method based on cognitive diagnosis theory

ActiveCN109857835AEfficient Educational AssessmentAccurate Educational AssessmentText database queryingSemantic tool creationBackground informationTechnical standard
The invention discloses a self-adaptive network security knowledge evaluation method based on a cognitive diagnosis theory. The self-adaptive network security knowledge evaluation method based on thecognitive diagnosis theory comprises the following steps: S1, an evaluation system generates a network security knowledge graph according to the identity background of a user, and tests the user according to a preset sequence and a knowledge structure; S2, the test system generates a personal basic information database according to the personal identity background information uploaded by the userand a specific format; and S3, the test system traverses according to the structural sequence of the knowledge graph for item-by-item test, and accurate positioning of the knowledge level of the useris realized based on test question extraction of the corresponding difficulty standard. According to the method, a potential knowledge state is obtained through real-time feedback of a user in testing, and a novel cognitive diagnosis model PH-is utilized; And the real knowledge, skill level and corresponding short boards of the user are efficiently reasoned by the DINA, so that efficient and accurate education evaluation is realized, and the learning condition of the user is better reflected.
Owner:北京红山瑞达科技有限公司 +1

Intelligent power utilization control management system

The invention provides an intelligent power utilization control management system. The system comprises multiple sets of acquisition equipment and a cloud platform, wherein the acquisition equipment are used for acquiring the electrical parameters of to-be-monitored electrical equipment through a built-in sensor, converting the electrical parameters into electrical signals, and transmitting the electrical signals to the cloud platform through a network module; and the cloud platform is used for receiving the electrical signals and the dynamic characteristics sent by the acquisition equipment and monitoring the power utilization condition, the on-off state and the safety condition of the electrical equipment, evaluating the current energy efficiency and electrical safety of the electrical equipment according to the electrical signals, the dynamic characteristics, a pre-established fuzzy evaluation model and an event prediction-oriented expert knowledge evaluation library so as to obtain the energy efficiency and electrical safety evaluation result of the electrical equipment, and sending the result to a monitoring terminal. According to the invention, electrical energy efficiency and safety evaluation can be realized automatically and intelligently, so that more scientific, reasonable and effective power consumption management is facilitated.
Owner:彭浩明

End-to-end-based large-scale knowledge graph construction and storage method and end-to-end-based large-scale knowledge graph construction and storage system

The invention discloses an end-to-end-based large knowledge graph construction and storage method and system. The system comprises a knowledge graph construction system, a knowledge construction module, a knowledge management module, a knowledge application module, a knowledge extraction module, and a processing and storage module. The knowledge graph construction system is in communication connection with the knowledge construction module, the knowledge management module, the knowledge application module, the knowledge extraction module and the processing storage module. The knowledge construction module comprises a knowledge collection module, a knowledge fusion module, a knowledge evaluation module and a knowledge updating module; the knowledge application module comprises a cognition service module, a language understanding module and an inference engine module; the reasoning engine module is in communication connection with the understanding service module and the language understanding module, and the language understanding module is in communication connection with the understanding service module. According to the invention, required data can be obtained more quickly and efficiently; through cooperation of data integration, data cleaning and data updating in the data cleaning and perfecting module and the processing and storing module, quick search is facilitated.
Owner:长威信息科技发展股份有限公司

Knowledge evaluation method and device, storage medium and electronic equipment

The invention provides a knowledge evaluation method and device, a storage medium and electronic equipment, and the method comprises the steps of building a system question bank based on a knowledge graph; selecting first test question data suitable for the target object from a system question bank, and obtaining a first processing result; dynamically determining a second attribute label suitablefor the target object according to the first attribute label and the first processing result, selecting second test question data matched with the second attribute label from a system question bank, and then obtaining a second processing result; and determining the mastery degree of the target object for the corresponding knowledge points according to the first processing result and the second processing result. According to the knowledge evaluation method and device, the storage medium and the electronic equipment provided by the embodiment of the invention, the test question data of the target object can be dynamically selected in real time, the mastery degree of the target object on knowledge points can be more effectively and accurately determined, and weak knowledge points of the target object can be quickly positioned.
Owner:BEIJING MIYOSHI INTERACTIVE EDUCATIONAL TECH CO LTD

An adaptive network security knowledge evaluation method based on cognitive diagnosis theory

ActiveCN109857835BEfficient Educational AssessmentAccurate Educational AssessmentText database queryingSemantic tool creationKnowledge stateBackground information
The invention discloses a self-adaptive network security knowledge evaluation method based on a cognitive diagnosis theory. The self-adaptive network security knowledge evaluation method based on thecognitive diagnosis theory comprises the following steps: S1, an evaluation system generates a network security knowledge graph according to the identity background of a user, and tests the user according to a preset sequence and a knowledge structure; S2, the test system generates a personal basic information database according to the personal identity background information uploaded by the userand a specific format; and S3, the test system traverses according to the structural sequence of the knowledge graph for item-by-item test, and accurate positioning of the knowledge level of the useris realized based on test question extraction of the corresponding difficulty standard. According to the method, a potential knowledge state is obtained through real-time feedback of a user in testing, and a novel cognitive diagnosis model PH-is utilized; And the real knowledge, skill level and corresponding short boards of the user are efficiently reasoned by the DINA, so that efficient and accurate education evaluation is realized, and the learning condition of the user is better reflected.
Owner:北京红山瑞达科技有限公司 +1

Typical experience whole-process management and control platform, and management and control method thereof

The invention discloses a typical experience whole-process management and control platform including a typical experience library server, a search processor, the typical experience library server comprises a typical experience classification management unit; an optimal practice resource classification guiding unit, the search processor comprises a search and navigation unit; an analysis processingunit, a verification expansion unit, an evaluation optimization unit, the management and control strategy is as follows: the management and control strategy is as follows; professional management problem of user input, the searching and navigation unit obtains the existing typical experience information through the optimal practice resource classification and guidance unit; then, the analysis processing unit is used for analyzing and discussing the specific method of the existing typical experience; existing excellent typical experiences are verified and practiced through the verifying and expanding unit, expanding and innovating are conducted in combination with practical application, and then knowledge evaluation and value judgment are conducted on the method of the original typical experiences through the evaluation and optimization unit, and then improved optimization suggestions are given. According to the design, standardized management of typical experience is achieved, and thebenchmarking management work level can be improved.
Owner:STATE GRID CORP OF CHINA +1

Authoritative degree determination method, apparatus and device, and storage medium

The embodiment of the invention discloses an authoritative degree determination method and device, equipment and a storage medium. The method includes: obtaining question and answer data on the question and answer platform and evaluation data for each answering party, and determining an association relationship between the answering parties according to the question and answer data, the association relationship between the answering parties representing that objects corresponding to questions answered by the answering parties are the same. The evaluation data is the real feedback of the patient to the answers of the answers; therefore, the knowledge evaluation score of each answerer determined according to the evaluation data reflects the true level of the answerer, the obtained authoritative degree of the target answerer can reflect the true level of the answerer according to the knowledge evaluation score of the target answerer and the authoritative degree of the associated answerer,the authoritative degree is fair, and the accuracy of authoritative degree determination is improved. Even for the answers in the same status, the authority degrees of different answers are different, so that the authority degree effect is brought into full play, and it is ensured that the questioning party judges which answer of the answers is correct according to the authority degrees.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Quality evaluation method for knowledge graph

The invention relates to a quality evaluation method for a knowledge graph. The method comprises the following steps: acquiring knowledge background quality of the knowledge graph; acquiring knowledge content quality of the knowledge graph; acquiring knowledge application quality in the knowledge graph; and performing weighted summation on the knowledge background quality, the knowledge content quality and the knowledge application quality to obtain the quality of the knowledge graph in the specific problem field, wherein the calculation formula is Q(kg) = omega1Q(kbg) + omega2Q(kc) + omega3Q(ka). According to the quality assessment method for the knowledge graph, the quality of the knowledge graph is assessed from three aspects of knowledge background, knowledge content and knowledge application, and the knowledge content structure contained in the knowledge graph is divided into a concept layer, an entity layer and a relation layer in combination with the specific application of the knowledge graph for solving a specific problem by utilizing the knowledge graph; and the layers are evaluated from top to bottom, so that the knowledge of the knowledge graph is updated to form a knowledge evaluation closed-loop graph, and the quality of the knowledge graph is continuously improved.
Owner:YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST

Shared knowledge base system based on operation and maintenance management and knowledge sharing method

The invention discloses a shared knowledge base system based on operation and maintenance management and a knowledge sharing method, and relates to the technical field of knowledge bases, and the system comprises a knowledge input layer used for obtaining original operation and maintenance knowledge and a knowledge auditing layer used for auditing the original operation and maintenance knowledge obtained by the knowledge input layer; the knowledge retrieval layer is used for extracting corresponding operation and maintenance knowledge from a knowledge base according to received keywords and outputting the corresponding operation and maintenance knowledge according to the size of an execution coefficient, guiding an operation and maintenance engineer to solve the operation and maintenance fault problem more efficiently and scientifically, and improving the fault solving efficiency; after the operation and maintenance engineer receives the operation and maintenance knowledge, executing a corresponding solution and feeding back a solution result after the implementation of the corresponding solution to the knowledge base through the knowledge evaluation layer; in addition, the operation and maintenance engineer inputs operation and maintenance fault problems and corresponding solutions through the knowledge input layer, remote collection and summarization of various problems are achieved, the system adapts to the actual information requirements and development changes of the user, and the working efficiency of the operation and maintenance engineer is greatly improved.
Owner:ANHUI JOYFULL INFORMATION SCI & TECH

Breast cancer risk factor knowledge system model, knowledge graph system and construction method

The invention discloses a breast cancer risk factor knowledge system model, a breast cancer risk factor knowledge graph system based on a knowledge system and a construction method thereof, belongs to the field of big data processing, and can be applied to intelligent medical evaluation and risk prediction. The knowledge system model comprises an ontology establishment module, a data acquisition module, a knowledge evaluation module and a relationship classification module. According to the breast cancer risk factor knowledge system model and the knowledge graph system provided by the invention, structured and standardized processing can be performed on breast cancer and related risk factor knowledge, so that subsequent expanded application and maintenance are facilitated; the pathogenesis interaction relationship of the breast cancer can be effectively sorted, meanwhile, complex multi-dimensional risk factor entities and relationships can be networked, the method can be applied to an intelligent medical system based on knowledge graph data from multiple angles and multiple aspects in the future, and the hygienic benefits of screening items can be improved. Social overall health level is improved, and the system model has important research significance.
Owner:WEST CHINA HOSPITAL SICHUAN UNIV +1

Innovation and entrepreneurship comprehensive ability evaluation system

The invention provides an innovation and entrepreneurship comprehensive ability evaluation system, and relates to the technical field of innovation and entrepreneurship. The innovation and entrepreneurship comprehensive ability evaluation system comprises a theoretical knowledge evaluation module, a professional knowledge evaluation module, a training skill evaluation module, a client mining ability evaluation module, a personalized evaluation module and a comprehensive ability evaluation module. The theoretical knowledge evaluation module is composed of innovation theoretical knowledge evaluation, entrepreneurship theoretical knowledge evaluation and other theoretical knowledge evaluation; the professional knowledge evaluation module is composed of professional skill knowledge evaluation, professional extension knowledge evaluation, professional innovation knowledge evaluation and other professional knowledge evaluation. By designing evaluation modules of theoretical knowledge evaluation, professional knowledge evaluation, training skill evaluation, customer mining ability evaluation, personalized evaluation, comprehensive ability evaluation and the like, the innovation and entrepreneurship comprehensive ability of the entrepreneurs can be comprehensively and systematically evaluated, so that the overall working efficiency of the entrepreneurs is greatly improved.
Owner:XINYU UNIV
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