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Ontology-based knowledge base query method and system

A query method and knowledge base technology, applied in special data processing applications, instruments, electronic digital data processing, etc., can solve the problems that users cannot fully and accurately put forward query requirements, and the expression form of knowledge base is inconsistent, so as to improve convenience and promote applied effect

Inactive Publication Date: 2016-10-05
BEIJING SIMULATION CENT
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Problems solved by technology

[0004] An object of the present invention is to provide an ontology-based knowledge base query method and system, which can solve the application problems caused by the inability of users to fully and accurately propose query requirements due to inconsistent knowledge base expression forms, and realize multi-field knowledge query

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  • Ontology-based knowledge base query method and system
  • Ontology-based knowledge base query method and system

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Embodiment Construction

[0042] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0043] Such as figure 1 As shown, the present invention discloses an ontology-based knowledge base query method, which includes:

[0044] S1. Define a hierarchical knowledge structure and establish multiple knowledge bases in different fields. Among them, the knowledge base adopts tree structure as the form of expression, and supports multi-layer decomposition, and the knowledge nodes obtained after decomposition correspond to specific knowledge content;

[0045] S2. In the knowledge base, based on the knowledge nodes in...

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Abstract

The invention discloses an ontology-based knowledge base query method and system. The method comprises the steps of defining a hierarchical knowledge structure and establishing a plurality of knowledge bases in different domains; establishing descriptive specifications of a domain ontology and a descriptive ontology based on knowledge nodes in the knowledge bases, and generating an XML specification-based ontology description document; and performing a comparative query on a query demand and the knowledge bases based on knowledge semantic query of the ontologies, and comprehensively giving out a query result of the query demand. According to the technical scheme provided by the method and system, the query of multi-domain knowledge can be realized based on knowledge base query of the ontologies, the use convenience of the knowledge bases can be improved, and the knowledge application can be facilitated.

Description

technical field [0001] The present invention relates to a knowledge base query method, more specifically, to an ontology-based knowledge base query method and system. Background technique [0002] With the development of complex product development from digitization to intelligence, the management and application of knowledge has become the basic problem restricting the development of intelligent products. At present, in the research process of intelligent expert system for complex products, the query of knowledge base is mostly limited to the same type of knowledge, and the query is carried out through keywords. The general method is to propose a fixed-format knowledge base structure for the specific requirements of complex product development, select specific columns or a combination of columns in the knowledge base, and perform accurate or fuzzy queries on keywords to obtain information that meets the query conditions in the knowledge base. However, when more and more co...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 刘艳侯宝存
Owner BEIJING SIMULATION CENT
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