Verb meaning disambiguation method and device based on dependency constraint and knowledge

A word sense disambiguation and syntax-dependent technology, applied in semantic analysis, special data processing applications, instruments, etc., can solve problems such as improving and restricting the effect of word sense disambiguation

Active Publication Date: 2016-12-07
SHANDONG EVAYINFO TECH CO LTD
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AI Technical Summary

Problems solved by technology

These problems in the existing methods restrict the improvement of word sense disambiguation effect

Method used

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  • Verb meaning disambiguation method and device based on dependency constraint and knowledge
  • Verb meaning disambiguation method and device based on dependency constraint and knowledge
  • Verb meaning disambiguation method and device based on dependency constraint and knowledge

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Embodiment Construction

[0073] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the invention will be further described in detail below in conjunction with the drawings and implementations.

[0074] Take the disambiguation process of the ambiguous verb examine in the sentence "The homelessness people we examined had a multitude of physical disorders." as an example.

[0075] According to WordNet 3.0, the meaning information of the verb examine is shown in Table 1.

[0076] Table 1

[0077]

[0078] Among them, #v represents that the part of speech is a verb, and #1 to #5 represent five different meaning numbers.

[0079] The flowchart of the verb meaning disambiguation method based on dependency constraints and knowledge in the embodiment of the present invention, such as figure 1 shown, including the following steps.

[0080] Step 101, build a dependency knowledge base.

[0081] Perform dependency sy...

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Abstract

The invention discloses a verb meaning disambiguation method and device based on dependency constraint and knowledge. The method comprises the steps that dependency parsing is carried out on large-scale linguistic data, obtained dependency tuples are obtained, the frequency of the dependency tuples is calculated, and a dependency knowledge base is built; dependency parsing is carried out on a sentence with an ambiguous verb, and seventeen kinds of dependency tuples meeting set conditions are provided to be used as a dependency constraint set for ambiguous verbs; according to a semantic dictionary, a synonym set, an antonym set and a hypernym set are sequentially extracted as verb meaning representative verb sets of corresponding verb meanings of the ambiguous verb; according to the dependency knowledge base and the verb meaning representative verb sets, the posterior probabilities of the verb meanings of the ambiguous verb in the dependency constraint set are sequentially calculated; the correct verb meaning of the ambiguous verb is selected according to the posterior probabilities. By means of the verb meaning disambiguation method and device, the role of dependency parsing brought into full play, and the verb meanings of the ambiguous verb is more accurately judged.

Description

technical field [0001] The invention relates to the technical field of natural language processing, in particular to a method and device for disambiguating verb meanings based on dependency constraints and knowledge. Background technique [0002] Word sense disambiguation refers to automatically determining the meaning of ambiguous words according to their context. Word sense disambiguation is a basic task in the field of natural language processing, which has a direct impact on machine translation, information retrieval, text classification, automatic summarization, etc. [0003] The word sense disambiguation method based on knowledge base is currently the only method that can really be applied to large-scale word sense disambiguation tasks. Its effect is mainly affected by three factors: one is the size and quality of the knowledge base, the other is the accuracy of context-related word selection, and the third is the calculation method of word-sense correlation. The exi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/27
CPCG06F40/247G06F40/284G06F40/30
Inventor 鹿文鹏
Owner SHANDONG EVAYINFO TECH CO LTD
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