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The Research And Design Of Chinese Full Text Information Retrieval Systems Based On PSO

Posted on:2007-12-26Degree:MasterType:Thesis
Country:ChinaCandidate:S LiFull Text:PDF
GTID:2178360185994489Subject:Control theory and control engineering
Abstract/Summary:PDF Full Text Request
How to derive most useful information from the flood of information, how to gain most recent information in information explosion promptly, which are all the challenges that the retrieves technology faces at present. The full text retrieval, being as an extremely important branch in modern information retrieval technology, is for solving the highly effective gain problem of information at the historic moment. Basing on the full text index, adopting natural language to carry on the retrieval technology, the main processing object of full text retrieval systems is the electronic text data.There are two kinds of basic indices storehouses' structures, namely character-based table index storehouse and word-based table index storehouse. To concerned Chinese full text retrieval technology, in particular to Chinese information processing foundation technology: "Chinese segmentation technology", having conducted more thorough research, this article proposed one kind of PSO-based Chinese word segmentation plan for constructing the full text index. This kind of segmentation plan unified the merit exsiting in character table law and the word table method, obtains the accurate retrieval result in under the reduced information redundancy premise.Since PSO's invention, owing to its computation rapidity and the algorithm itself easy realization, it causes multitudinous scholar's attention and research internationally. In the domain of Function Optimizing, Nerve Network Training,...
Keywords/Search Tags:Full text retrieval, Full text index, Chinese word segmentation, Particles Swarm Optimizer, System design, Result sort
PDF Full Text Request
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