Recognizing Implicit Discourse Relations in the Penn Discourse Treebank
Recognizing Implicit Discourse Relations in the Penn Discourse Treebank
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DOI:
10.3115/1699510.1699555
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发表时间:
2009-08
期刊:
影响因子:
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通讯作者:
Ziheng Lin;Min-Yen Kan;H. Ng
中科院分区:
文献类型:
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作者:
Ziheng Lin;Min-Yen Kan;H. Ng
We present an implicit discourse relation classifier in the Penn Discourse Treebank (PDTB). Our classifier considers the context of the two arguments, word pair information, as well as the arguments' internal constituent and dependency parses. Our results on the PDTB yields a significant 14.1% improvement over the baseline. In our error analysis, we discuss four challenges in recognizing implicit relations in the PDTB.