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A Storage-Optimized Semantic Data Query System

A data query and storage optimization technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of low storage space utilization and query efficiency, so as to improve utilization rate, improve performance, and facilitate query The effect of the operation

Inactive Publication Date: 2011-12-07
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

Tests show that the storage space utilization and query efficiency of the triple table or similar methods are not very high

Method used

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  • A Storage-Optimized Semantic Data Query System
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  • A Storage-Optimized Semantic Data Query System

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Experimental program
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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, the present invention mainly includes four modules: a semantic data import module 1 , a semantic data storage management module 2 , a stored data persistence module 3 and a semantic data query module 4 .

[0024] The semantic data storage management module 2 is mainly responsible for the storage and management of the resource description framework data of the whole system. It accepts the formatted data generated by the semantic data import module 1, and stores the data in the semantic data storage management module 2; it interacts with the semantic data query module 4, and accepts the data query request from the semantic data query module 4, And return qualified result records to the semantic data query module 4; it interacts with the storage data persistence module 3, and before the entire system exits, transmits the data t...

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Abstract

The invention discloses a semantic data query system with optimized storage, comprising a semantic data importing module, a semantic data storage management module, a stored data persistence module and a semantic data query module. The system supports import of various regularly described resource description framework data, and can map a storage model to a magnetic disc, thereby implementing quick reproduction of an internal memory storage model. In the system, a query graph model operable to a bottom-layer storage model is formed by transforming and processing the semantic data query; a cost model for querying connection operations is established by counting bottom-layer stored data, and an optimization module for the semantic data query is implemented through a greedy algorithm; and sequence of query is regulated, so that query performance is improved.

Description

technical field [0001] The invention belongs to the field of resource description framework data storage and query of semantic web, and specifically relates to a storage model including optimization and a semantic data query system based on the optimization model. Background technique [0002] The Semantic Web is a vision for the next generation of the Internet proposed by the founder of the World Wide Web, Tim Berners-Lee. It makes data more structured by defining corresponding description standards, and by adding rules and semantics to data, it enables these data to be processed by machines. In the seven-layer Semantic Web architecture, the Extensible Markup Language (XML) is used as the basic syntax layer, and the Resource Description Framework (RDF) is used as a general language for describing Semantic Web data. Based on the resource description framework, resource description framework schema (Resource Description Framework Schema, RDFS) and Web Ontology Language (Web ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 金海吴德龙赵峰刘谱
Owner HUAZHONG UNIV OF SCI & TECH
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