Chinese Patent Efficacy Phrase Recognition

Ting Hou; Xue Qiang Lv; Li Ping Xu

doi:10.4028/www.scientific.net/AMM.743.510

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 743Chinese Patent Efficacy Phrase Recognition

Chinese Patent Efficacy Phrase Recognition

Abstract:

Effect information, as foundation of the patent efficacy analysis, the completeness and accuracy has the decisive significance to analysis result. In order to improve the efficiency of extraction of effect information, the paper proposed one kind method based on conditional random field model (CRFs) to recognize effect phrases. Efficacy phrases are highly generalization, and divided into effect theme, attribute and the efficiency value of three parts. Phrase recognition is recognition of the three parts. We make use of the sentence features in which the phrases exit, the lexical features and clue words with the composite template to discriminate the efficacy phrase on Patent abstract file. The experimental results show that the proposed method is effective, accurate rate is 79.25%, the recall rate is 56.7%.

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Periodical:

Applied Mechanics and Materials (Volume 743)

Pages:

510-514

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.743.510

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Online since:

March 2015

Authors:

Ting Hou*, Xue Qiang Lv, Li Ping Xu

Keywords:

Composite Template, Conditional Random Field, Effect Information, Phrase Recognition

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* - Corresponding Author

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