Text matching method and device

A matching method and text technology, applied in the computer field, can solve problems such as inaccurate text matching results

Active Publication Date: 2016-08-24
BEIJING QIYI CENTURY SCI & TECH CO LTD
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Problems solved by technology

[0005] However, in this method, the importance of the word segmentation is identified only based on the reverse file frequency of the word segmentation, that is, the frequency of occurrence of the word s

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Embodiment Construction

[0054] In order to improve the accuracy of text matching, an embodiment of the present invention provides a text matching method and device.

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0056] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0057] In order to improve the acc...

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Abstract

The embodiment of the invention provides a text matching method and device applied to electronic equipment. The method comprises the steps that search terms input by a user are received and subjected to participle treatment, at least one participle is obtained; according to a pre-trained classification model and at least one of the term property, semantic attribute, independent search term probability and click rate of each term, the importance weight of each participle is determined; according to the text to be matched and a text set where the text to be matched is located, the term frequency and inverse document frequency of each participle are determined; according to the importance weight, term frequency and inverse document frequency of each participle, the matching degree of the search terms and the text to be matched is calculated. According to the text matching method and device, the importance degree of each participle can be more accurately measured by means of the important weight and inverse document frequency of each term, and therefore the text matching accuracy can be improved when text matching is carried out according to the importance degree of each participle.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a text matching method and device. Background technique [0002] The text matching method, that is, the method of measuring the relevance or matching degree of the search term and the text in the text, is an indispensable technology in the search system. [0003] A commonly used text matching method in the prior art is a TF-IDF (term frequency-inverse document frequency, term frequency-inverse document frequency) algorithm. TF-IDF is a statistical method that can be used to evaluate how well a search term matches a text in a text collection. The basic principle is: the degree of matching between a search word and a text can be determined by the word frequency and importance of each participle included in the search word. Among them, the importance of each word segment is identified by its inverse document frequency, that is, it can be considered that the fewer texts containin...

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/35G06F16/9535
Inventor 胡军陈英傑王天畅叶澄灿
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD
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