Distributed full-text retrieval system

A retrieval system and distributed technology, applied in the field of data processing, can solve the problems of slow retrieval speed, difficulty in locating files, occupying a lot of system resources, etc., and achieve the effect of strengthening stability and improving indexing speed

Inactive Publication Date: 2012-12-19
BEIJING KEDONG ELECTRIC POWER CONTROL SYST +1
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Problems solved by technology

[0011] Because there are many related documents, electronic information materials, and news applications in the power industry, many systems have their own functions for managing documents. However, in the face of a large number of information resources, it is difficult to locate the files you want to find in which system and where they are stored. On the server, how to conveniently, quickly and accurately obtain the required file information from various distributed servers has become a crucial issue
The document retrieval system in the prior art has defects such as slow retrieval speed and too much occupation of system resources.

Method used

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  • Distributed full-text retrieval system

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Embodiment Construction

[0034] The technical solution of the present invention will be described in detail below.

[0035] The present invention is aimed at the conventional distributed strategy, if no matching file is found on one machine, the user request is forwarded to other machines to continue to retrieve the index file. In this way, each request will traverse the index files of all machines, and the efficiency and load are relatively large. The system adopts the method of unifying the index files of each node on a central server machine to reduce the time for forwarding requests, and at the same time only retrieve them on the central server, reducing the The load of other node machines such as figure 1 The shown assumes a distributed full-text retrieval system, which is composed of full-text retrieval servers installed on each network node, and divided into distributed node servers and system center servers according to functions. figure 1 Including a system center server and 4 distributed no...

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Abstract

The invention belongs to the field of data processing and in particular relates to a distributed full-text retrieval system. The system consists of full-text retrieval servers comprising a distributed node server and a system center server which are arranged on each network node, wherein the distributed node server comprises a file information retrieval module and a server communication module; the file information retrieval module retrieves the full-text information of the file on the node server, segments words according to a defined lexicon, extracts the keyword information and establishes an index file; the server communication module realizes the information exchange between the distributed node server and the system center server; and the system center server merges the index files transmitted by each node server, provides a query interface for a user and shows the appropriate file which serves as a query result to the user.

Description

[0001] technical field [0002] The invention belongs to the field of data processing, in particular to a distributed full-text retrieval system. [0003] Background technique [0004] The document retrieval system mainly implements the index extraction and data search functions of various documents, materials and knowledge bases in the dispatch management application. [0005] a) Indexing: perform text index extraction on the text information of commonly used document files such as doc, txt, and pdf. [0006] b) Data search: locate documents and data according to the text index fuzzy search. [0007] Distributed query mainly realizes the distributed query of database information standardized among scheduling agencies and modules in scheduling management applications. Platform-based remote service agent and data public service realize remote data query. Distributed query should include but not limited to the following functions: [0008] c) Data query across dispatc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 何蕾李勇曹宇喻宏元苏迤庞传军聂春元杨笑宇徐家慧武毅林海峰方伟
Owner BEIJING KEDONG ELECTRIC POWER CONTROL SYST
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