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Similarity computing method and similarity computing device on basis of semanteme

A similarity calculation and similarity technology, applied in the computer field, can solve problems such as poor accuracy

Active Publication Date: 2013-03-06
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the accuracy of the existing similarity calculation method is poor

Method used

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  • Similarity computing method and similarity computing device on basis of semanteme
  • Similarity computing method and similarity computing device on basis of semanteme
  • Similarity computing method and similarity computing device on basis of semanteme

Examples

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Embodiment 1

[0077] figure 1 The flow chart of the method provided by Embodiment 1 of the present invention, such as figure 1 As shown, the method may include the following steps:

[0078] Step 101: Obtain the question S to be compared 1 and S 2 .

[0079] The question S to be compared obtained in this step 1 and S 2 It depends on the specific application of correlation calculation. For example, if the correlation degree calculation provided by the embodiment of the present invention is used to sort the search results, then the above-mentioned questions S to be compared 1 and S 2 Can be the titles of query and search results input by the user respectively; if the correlation degree calculation provided by the embodiment of the present invention is used on a question-and-answer platform, then the above-mentioned question sentence S to be compared 1 and S 2 It can be respectively the questions entered by the user and the existing questions in the database of the question-and-answer ...

Embodiment 2

[0133] image 3 The device structure diagram provided for the second embodiment of the present invention, such as image 3 As shown, the device may include: a sentence acquisition unit 300 , a word segmentation weighting unit 310 , a semantic mapping unit 320 and a similarity calculation unit 330 .

[0134] The sentence acquiring unit 300 acquires the sentence S to be compared 1 and S 2 .

[0135] The acquired question S to be compared 1 and S 2 It depends on the specific application of correlation calculation. For example, if the correlation degree calculation provided by the embodiment of the present invention is used to sort the search results, then the above-mentioned questions S to be compared 1 and S 2 Can be the titles of query and search results input by the user respectively; if the correlation calculation provided by the embodiment of the present invention is used on a question-and-answer platform, the above-mentioned question sentence S to be compared 1 and ...

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Abstract

The invention provides a similarity computing method and a similarity computing device on the basis of semanteme. The similarity computing method includes acquiring sentences S1 and S2 to be compared; subjecting the sentences S1 and S2 to word segmentation; mapping obtained words with semantic mapping after word segmentation to be uniformized expression; and computing similarity Sim (S1 and S2) between the S1 and the S2 which are processed in the last step. By mapping the words with semantic mapping to be uniformized expression and integrating with computing of the similarity, similarity between the sentences are displayed semantically other than literally, and accuracy of similarity between computing sentences is improved.

Description

【Technical field】 [0001] The invention relates to the field of computer technology, in particular to a method and device for computing similarity based on semantics. 【Background technique】 [0002] With the continuous development of computer technology, users rely more and more on obtaining information through such as search technology, question-and-answer platform or hot news. Among them, it will involve the problem of calculating the similarity between sentences, for example, by calculating the similarity between the search results and the user query to determine the ranking of the search results; According to the similarity between them, find out the answer corresponding to the question entered by the user; through the similarity between the titles of the news pages, each news page is clustered to determine the hot events. [0003] In the existing similarity calculation method, only the literal similarity between two sentences is calculated, but in fact, the similarity b...

Claims

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Application Information

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IPC IPC(8): G06F17/27
Inventor 方高林王海峰
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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