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A method and device for adverb word sense disambiguation based on dependency constraints and knowledge

A word sense disambiguation and syntax-dependent technology, applied in the field of natural language processing, can solve problems such as improving and restricting the effect of word sense disambiguation, and achieve high quality and reduce interference

Active Publication Date: 2019-05-28
SHANDONG EVAYINFO TECH CO LTD
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Problems solved by technology

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

Method used

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  • A method and device for adverb word sense disambiguation based on dependency constraints and knowledge
  • A method and device for adverb word sense disambiguation based on dependency constraints and knowledge
  • A method and device for adverb word sense disambiguation based on dependency constraints and knowledge

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Embodiment Construction

[0071] 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 present invention will be further described in detail below with reference to the accompanying drawings and implementation manners.

[0072] Take the disambiguation processing of the ambiguous adverb easily in the sentence "Text editors were developed that allowed changes and corrections to be made much more easily than with punch card." as an example.

[0073] According to WordNet 3.0, the meaning information of the adverb easyly is shown in Table 1.

[0074] Table 1

[0075]

[0076]

[0077] Among them, #r represents part of speech as adverb, #1~#3 represent three different word meaning numbers.

[0078] A flowchart of an adverb word sense disambiguation method based on dependency constraints and knowledge in an embodiment of the present invention, such as figure 1 As shown, the following steps are included.

[0079] Step 101: Build ...

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Abstract

The invention discloses a dependency constraint and knowledge-based adverb meaning disambiguation method and apparatus. The method comprises the steps of performing dependency syntax analysis on large-scale corpora, collecting obtained dependency tuples and performing statistics on frequency numbers of the dependency tuples, and establishing a dependency knowledge library; performing dependency syntax analysis on a sentence in which ambiguous adverbs are located, and extracting the two dependency tuples meeting a set condition as a dependency constraint set of the ambiguous adverbs; sequentially extracting a synonym set and an antonym set as a word meaning representative word set of corresponding word meanings for the word meanings of the ambiguous adverbs according to a semantic dictionary; sequentially calculating posterior probabilities of the word meanings of the ambiguous adverbs in the dependency constraint set according to the dependency knowledge library and the word meaning representative word set; and selecting correct word meanings of the ambiguous adverbs according to the posterior probabilities. By utilizing the method and the apparatus, the effect of the dependency syntax analysis can be brought into full play and the word meanings of the ambiguous adverbs can be determined more accurately and effectively.

Description

Technical field [0001] The present invention relates to the technical field of natural language processing, in particular to a method and device for disambiguating adverb word sense 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, and automatic summarization. [0003] The knowledge base-based word sense disambiguation method is the only method that can be truly applied to large-scale word sense disambiguation tasks. The effect is mainly affected by three factors: one is the scale and quality of the knowledge base, the second is the accuracy of the selection of context-related words, 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 Patents(China)
IPC IPC(8): G06F17/27
CPCG06F40/247G06F40/284G06F40/30
Inventor 鹿文鹏
Owner SHANDONG EVAYINFO TECH CO LTD
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