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Semantic matching method and system for knowledge retrieval and question answering of power transformer

A power transformer and knowledge retrieval technology, which is applied in semantic analysis, semantic tool creation, neural learning methods, etc., can solve problems that affect the efficiency of basic-level inspection personnel, and it is difficult to accurately identify the retrieval/question semantics of basic-level inspection personnel. , to achieve the effect of improving retrieval/question and answer efficiency and transport inspection efficiency, improving transport inspection efficiency, and facilitating application

Pending Publication Date: 2022-01-21
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +3
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Problems solved by technology

[0007] 2) There are a large number of approximation methods
[0011] Due to the above problems, the existing semantic matching method for power transformer knowledge retrieval and question answering is difficult to accurately identify the retrieval / question semantics of grassroots inspection personnel, which affects the efficiency of inspection personnel at the grassroots level

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  • Semantic matching method and system for knowledge retrieval and question answering of power transformer
  • Semantic matching method and system for knowledge retrieval and question answering of power transformer
  • Semantic matching method and system for knowledge retrieval and question answering of power transformer

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specific Embodiment

[0160] Aiming at the problem of insufficient corpus data in the field of small samples of power transformers, the present invention proposes a rapid corpus enhancement mechanism based on knowledge graph KG+semantic templates. Based on the idea of ​​slots, a slot-based question template is designed to express user input semantics.

[0161] The question template is composed of the sentence input by the user and the semantic annotation of the sentence, for example, the question template "Which factory [ / C manufacturer] manufactures the #1 main transformer [ / C transformer] of [ / R relationship]", " #1 What is the voltage [attribute, named "voltage level"] of the main transformer [ / equipment type]", where the "【】" part is the semantic labeling part, which is divided into three categories:

[0162] Concept, starting with the letter C, followed by the specific concept name.

[0163] Attributes, starting with the letter P, followed by specific attribute names.

[0164] Relationships,...

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Abstract

The invention discloses a semantic matching method and system for knowledge retrieval and question answering of a power transformer, and belongs to the technical field of power transformer equipment. According to an existing semantic matching method, retrieval / question and answer semantics of base-level operation inspection personnel are difficult to accurately recognize, and the operation inspection efficiency of the base-level operation inspection personnel is affected. According to the semantic matching method for knowledge retrieval and question answering of the power transformer, a corpus enhancement model based on a small sample transformer question sentence template is constructed, and enhancement of a transformer corpus text and data enhancement are realized in combination with a transformer knowledge graph and a synonym word library; transformer corpus data and an artificial neural network technology are utilized to train and form an integrated recognition model; and through the integrated identification model, combined identification of user query intentions and slot positions is realized on the basis of corpora, so that user retrieval / question and answer semantics can be accurately identified, and the operation inspection efficiency of the user is effectively improved.

Description

technical field [0001] The invention relates to a semantic matching method and system for power transformer knowledge retrieval and question answering, and belongs to the technical field of power transformer equipment. Background technique [0002] There is a large amount of knowledge in equipment operation and inspection, such as equipment maintenance standards, guidelines, and equipment failure cases. Electric power knowledge is a frequent occurrence and key concern of grassroots inspection personnel in business execution. At present, the application form of these common knowledge is mainly based on keyword retrieval, and the knowledge application such as knowledge-based search and question answering is still in the exploratory stage. [0003] Furthermore, electric power companies have built a vertical knowledge map around transformer equipment. The map contains various knowledge points related to transformers, including transformer ledgers, transformer faults, and testing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F40/289G06F16/36G06F40/216G06F40/30G06N3/04G06N3/08
CPCG06F40/289G06F40/216G06F40/30G06F16/367G06N3/049G06N3/08G06N3/045Y02T10/40
Inventor 蔺家骏胡俊华丁敬李晨张敏杰徐宁杨宁钱平于群英杨代勇
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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