A bilingual unsupervised syntax analysis method and system

A technology of syntactic analysis and syntactic analysis tree, which is applied in special data processing applications, instruments, electrical digital data processing, etc.
CN104281564BInactive Publication Date: 2017-08-08INST OF COMPUTING TECH CHINESE ACAD OF SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF COMPUTING TECH CHINESE ACAD OF SCI
Publication Date
2017-08-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses bilingual unsupervised syntactic analysis method and system. The method comprises the following steps: 1 respectively building random syntactic analysis treebanks on a bilingual corpus source side and a target side; 2 individually training a monolingual unsupervised syntactic analysis model by computing the probability of a monolingual unsupervised syntactic analysis tree on the random syntactic analysis treebanks; 3 carrying out bilingual syntactic analysis on the monolingual unsupervised syntactic analysis model by computing the relaxation isomorphism similarity and a bilingual syntactic analysis algorithm, obtaining a bilingual syntactic analysis treebank which meets a relaxation isomorphism bilingual syntactic analysis target, so as to replace the random syntactic analysis treebanks; 4 repeating the steps 1 to 3 until the bilingual unsupervised syntactic analysis model is astringed; therefore, the better monolingual unsupervised syntactic analysis model is obtained, so as to be applied to all downstream application requiring syntactic analysis.
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Description

technical field

[0001] The invention belongs to the technical field of natural language processing, in particular to a bilingual unsupervised syntax analysis method and system based on the idea of ​​relaxation isomorphism. Background technique

[0002] Syntactic analysis is a series of analysis of natural language sentences, mainly analyzing the syntactic components of sentences and the relationship between them, and the usual output is expressed in the form of syntax tree. The unsupervised syntactic analysis method can perform syntactic analysis on a given sentence sequence without labeling the tree bank, and obtain the corresponding syntactic structure for downstream natural language processing tasks, such as syntax-based machine translation tasks, information extraction tasks, The corresponding syntactic structures are widely used in tasks such as automatic question answering tasks. However, most of the traditional unsupervised syntactic analysis methods currently perfor...

Claims

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