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Term extraction based on the combination of statistics and rules
Author(s):
TANG Tao
,
ZHOU Qiao-li
,
ZHANG Gui-ping
Pages:
71
-
74
Year:
2011
Issue:
5
Journal:
Journal of Shenyang Institute of Aeronautical Engineering
Keyword:
术语抽取
;
条件随机场
;
未登录术语
;
5-best
;
Abstract:
在面向特定领域的分词中,术语抽取效果的好坏会对分词精度产生很大影响.因此,高精度的术语抽取成为领域分词的基础工作.针对特定领域提出了一种统计和规则相结合的术语抽取方法.在条件随机场给出的5 -best结果的基础上,通过规则及给分机制进行术语抽取,并对抽取结果利用规则进行后处理.实验表明,相比于传统的基于条件随机场1 -best进行的术语抽取,该方法能够明显提高未登录术语的召回率.
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