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Design a Enterprise Information Search Engine and Research Its Key Technology

Author: LiWei
Tutor: LiMeiAn
School: Inner Mongolia Agricultural University
Course: Applied Computer Technology
Keywords: Vertical search engine HMM Web information extraction Chinese word segmentation Dictionary Mechanism Enterprise Information Search Engine
CLC: TP391.3
Type: Master's thesis
Year: 2011
Downloads: 24
Quote: 0
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Abstract


Vertical search engine technology in the user 's life gradually occupies a pivotal position in user demand gradually refine the search industry , vertical search engine supports enterprise information has not been perfected . Enterprise information needs of search engine analysis , system design and key technologies , the establishment of a business information search engine , to provide users with the information related to the enterprise information search service . A hidden Markov model (HMM) - based Web information extraction system . Enterprise information hidden Markov model , using a hidden Markov model algorithm to solve the model training and decoding , and then extract the information . Has formed model parameters to be optimized again information extraction . The experimental results show that the hidden Markov model optimized extraction better . Chinese word search engine for enterprise information . Based on forward maximum matching word segmentation algorithm to optimize the Chinese word dictionary mechanism , design the mechanism of the double word long double and independent vocabulary dictionary , three in space and query time and dictionary maintenance comparative evaluation with other dictionary mechanism enterprise information professional dictionary , and according to this mechanism , used in business information search engine . 3 on the basis of the open-source architecture , using text information extraction and the Chinese word parts studied by the use of two key technologies to transform the enterprise information search engine . The experiments show that the improved enterprise information search engine can better meet the demand of the users of the enterprise information search service .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Retrieval machine
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