基于条件随机场的英文产品命名实体识别
收稿日期: 2009-09-26
修回日期: 2009-12-21
网络出版日期: 2010-06-01
基金资助
国家自然科学基金资助项目(60863011);云南省自然科学基金重点项目(2008CC023);云南省中青年学术技术带头人后备人才项目(2007PY0111);云南省教育厅基金重点项目 (07Z11139)
Named Entity Recognition of the Products with English Based on Conditional Random Fields
Received date: 2009-09-26
Revised date: 2009-12-21
Online published: 2010-06-01
张朝胜1,郭剑毅1,2,线岩团1,2,余正涛1,2,雷春雅1, 王海雄1 . 基于条件随机场的英文产品命名实体识别[J]. 计算机工程与科学, 2010 , 32(6) : 115 -117 . DOI: 10.3969/j.issn.1007130X.2010.
Recently, as the scarce research of Named Entity Recognition of the Products with English domesticaly and abroad, this paper aims at the task of TREC 2009, and proposes a method for the Named Entity Recognition of the Products with English based on the Conditional Random Fields model. In the conditional random field, this paper adopts word as the grain processing unit; uses the context information and especial cue information of English product names as the features of recognition, and adopts the artificially constructed dictionary to build the model. A good result has been obtained by the experiment and the accuracy rate of the English product entity recognition is up to 93.6%, and the recall rate 92.4%.
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