A Topic Extraction Method Based on News Text
An extraction method and text technology, applied in the field of topic extraction based on news text, which can solve the problems of high time complexity, inability to represent clustering results, and large order correlation of single-pass algorithm.
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[0046] The "a news text-based topic extraction method" of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0047] The present invention provides a method for extracting news text topics. Firstly, the user-defined dictionary is expanded by means of new word identification or manual addition, so as to ensure that the extracted words can cover commonly used words and new words in the news field, and then the text is Carry out word segmentation, word frequency statistics, document frequency statistics, etc., use these information to calculate the weight of each word in the news text, get the sequence of subject words in the text set, and finally use two subject words to represent a topic, and condense the text belonging to this topic Get into this hot topic and get the final results. as attached figure 1 As shown, the specific steps are as follows:
[0048] 1. User dictionary expansion. User-defined ...
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