%0 Journal Article
%T Analysis of the Factors Affecting the Performance of CRF-based Keywords Extraction Model<br>条件随机场标引模型的性能影响因素分析
%A Zhang Chengmin
%A Xu Xin
%A Zhang Chengzhi
%A <br>章成敏
%A 许鑫
%A 章成志
%J 现代图书情报技术
%D 2008
%I 
%X The CRF model can use the features of documents more sufficiently and effectively. Keywords extraction based on CRF is proposed and implemented. The factors affecting the performance of the CRF-based keyword extraction model are analyzed. The factors include: the performance of text segmentation, the scale of training corpus, the number of figure and the parameters setting of the CRF model.
%K Automatic indexing
%K Keywords extraction
%K Conditional random fields
%K Machine learning<br>自动标引
%K 关键词提取
%K 条件随机场
%K 机器学习
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=E46382710BF131B2&jid=24AADBCD0D5373C73F37F78D10E2F717&aid=3B575E53C98A5F84D424A4F7C01CD279&yid=67289AFF6305E306&vid=B91E8C6D6FE990DB&iid=B31275AF3241DB2D&sid=339D79302DF62549&eid=1371F55DA51B6E64&journal_id=1003-3513&journal_name=现代图书情报技术&referenced_num=0&reference_num=11