Network resource semantic retrieval method and system based on resource description framework

A resource description framework and network resource technology, applied in special data processing applications, instruments, electrical digital data processing, etc., to shorten the time to return query results and ensure the effect of recall

Inactive Publication Date: 2013-03-27
WUXI CHENGDIAN KEDA TECH DEV
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Problems solved by technology

It is precisely because people urgently need the emergence of semantic-based retrie...

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  • Network resource semantic retrieval method and system based on resource description framework
  • Network resource semantic retrieval method and system based on resource description framework
  • Network resource semantic retrieval method and system based on resource description framework

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Embodiment Construction

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] Please refer to figure 1 as shown, figure 1 It is a flowchart of a method for semantic retrieval of network resources based on a resource description framework provided by an embodiment of the present invention.

[0039] In this embodiment, the method for semantic retrieval of network resources based on the resource description framework includes the following steps:

[0040] Step S101 , perform data modeling on heterogeneous resources on the Web, describe the Web resources based on Resource Description Framework (RDF), and generate RDF data. The specific process of data modeling and resource description is as follows:

[0041] Step S1011, use the original heterogeneous resources in the Web as the data source for data modeling to create new types ...

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Abstract

The invention discloses a network resource semantic retrieval method and a network resource semantic retrieval system based on a resource description framework. A resource description method provided by using the resource description framework is used for carrying out data modeling on a heterogeneous resource on a Web; uniform description based on RDF (Radio Direction Finding) is carried out according to models so as to support information retrieval based on semantics in a querying process, so that physically-loosened resources in a previous system are effectively and logically collected together by the uniform description based on the RDF, web resources are effectively utilized and the target of sharing the resources on different platforms is realized. A resource semantic related base is introduced to store resources with the relevancy on the aspect of the semantics and the dynamic change of the Web resources is successfully processed, so that the recall ratio and the precision ratio are guaranteed. A dynamic sieving algorithm based on a bayesian decision theory is adopted to ensure that a usually-queried object is placed into a high-speed buffering storage and the time of returning back to a queried result is effectively shortened.

Description

technical field [0001] The invention relates to the technical field of information retrieval, in particular to a method and system for semantic retrieval of network resources based on a resource description framework. Background technique [0002] With the acceleration of the global informatization process, there are more and more information on the network, and the requirements for information retrieval methods are also getting higher and higher. At present, most retrieval methods are full-text retrieval technology based on keyword matching, and the query results often have incomplete retrieval and wrong answers. Semantic retrieval overcomes the shortcoming that mechanical text matching is limited to superficial forms, analyzes and processes users' retrieval requests from the semantic level expressed by network (Web) resource information, and improves information retrieval from the current keyword-based level to that based on At the level of knowledge (or concept), there i...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 黎明吴少智陈佳吴跃
Owner WUXI CHENGDIAN KEDA TECH DEV
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