[1]JIAN Ping,ZONG Cheng-qing.A new approach to identifying Chinese maximal-length phrases using bidirectional labeling[J].CAAI Transactions on Intelligent Systems,2009,4(5):406-413.[doi:10.3969/j.issn.1673-4785.2009.05.004]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
4
Number of periods:
2009 5
Page number:
406-413
Column:
学术论文—自然语言处理与理解
Public date:
2009-10-25
- Title:
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A new approach to identifying Chinese maximal-length phrases using bidirectional labeling
- Author(s):
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JIAN Ping; ZONG Cheng-qing
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National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
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- Keywords:
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maximal-length noun phrase identification; prepositional phrase identification; sequence labeling; bidirectional labeling; fork position
- CLC:
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TP391
- DOI:
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10.3969/j.issn.1673-4785.2009.05.004
- Abstract:
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Chinese maximal-length phrases (maximal-length noun phrases and prepositional phrases) possess remarkable linguistic properties. Bidirectional labeling results of Chinese maximal-length phrases obtained using sequential classifiers reveal complementary properties in both directions. In this paper, both left-right and right-left sequential labeling were employed to identify the Chinese maximal-length noun phrases and prepositional phrases. Then a novel “fork position” based probabilistic algorithm was developed to fuse the bidirectional results. Experiments were carried out on the Penn Chinese Treebank, a segmented, part-of-speech tagged, and fully bracketed corpus. The results confirmed that the proposed algorithm is able to effectively exploit the complementary strengths of the two directions.