Label automatic generation method based on meta-search engine
A meta-search engine and automatic generation technology, applied in special data processing applications, instruments, electronic digital data processing, etc., can solve the problems of mixed information resources and search engines that cannot meet the individual needs of users, so as to ensure the recall rate, Guaranteed precision effect
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[0035] Based on the existing TextRank algorithm, the present invention proposes an improved TextRank algorithm to generate labels. This method consists of three stages, which are text preprocessing optimization, information amount calculation, and label extraction.
[0036] Algorithm improvement ideas: firstly, text preprocessing optimization, while performing Chinese word segmentation, retain the basic information of words, including part of speech, word position, word frequency, to form a five-tuple; secondly, word filtering, remove stop words, and perform part-of-speech filtering. Retain nouns, verbs, and gerunds based on experience to reduce noise interference; recalculate word information again, calculate word position score, word frequency, and word span through the statistical basic information of words, and calculate the comprehensive score as the weight of words; finally calculate words The similarity between them is used as the weight of the edge in the TextRank algo...
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