• Title/Summary/Keyword: Sieve-Guided Features

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Coreference Resolution for Korean Using Random Forests (랜덤 포레스트를 이용한 한국어 상호참조 해결)

  • Jeong, Seok-Won;Choi, MaengSik;Kim, HarkSoo
    • KIPS Transactions on Software and Data Engineering
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    • v.5 no.11
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    • pp.535-540
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    • 2016
  • Coreference resolution is to identify mentions in documents and is to group co-referred mentions in the documents. It is an essential step for natural language processing applications such as information extraction, event tracking, and question-answering. Recently, various coreference resolution models based on ML (machine learning) have been proposed, As well-known, these ML-based models need large training data that are manually annotated with coreferred mention tags. Unfortunately, we cannot find usable open data for learning ML-based models in Korean. Therefore, we propose an efficient coreference resolution model that needs less training data than other ML-based models. The proposed model identifies co-referred mentions using random forests based on sieve-guided features. In the experiments with baseball news articles, the proposed model showed a better CoNLL F1-score of 0.6678 than other ML-based models.