Learning to Detect Hedges and their Scope Using CRF

نویسندگان

  • Qi Zhao
  • Chengjie Sun
  • Bingquan Liu
  • Yong Cheng
چکیده

Detecting speculative assertions is essential to distinguish the facts from uncertain information for biomedical text. This paper describes a system to detect hedge cues and their scope using CRF model. HCDic feature is presented to improve the system performance of detecting hedge cues on BioScope corpus. The feature can make use of crossdomain resources.

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تاریخ انتشار 2010