Annotating the Focus of Negation in Japanese Text
Annotating the Focus of Negation in Japanese Text
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发表时间：
2014-05
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通讯作者：
Suguru Matsuyoshi;Ryo Otsuki;Fumiyo Fukumoto
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作者：
Suguru Matsuyoshi;Ryo Otsuki;Fumiyo Fukumoto
本文提出了一种针对日语文本中否定焦点的标注方案。否定有它的范围，也有范围之内的焦点。否定范围是句子中被否定的部分；焦点是范围中最突出或明确否定的部分。在自然语言处理中，正确解释否定语句需要精确检测语句中否定的焦点。作为开发日语否定焦点检测器的基础，我们使用我们的注释方案中提出的标签注释了“Rakuten Travel：用户评论数据”的文本数据和“当代书面日语平衡语料库”的报纸子语料库。我们报告了语料库中的 1,327 个否定线索和焦点，并根据句法类型和语义类型对这些焦点进行了分类。我们还提出了一种使用 16 条启发式规则检测日语否定焦点的系统，并报告系统的性能。
This paper proposes an annotation scheme for the focus of negation in Japanese text. Negation has its scope and the focus within the scope. The scope of negation is the part of the sentence that is negated; the focus is the part of the scope that is most prominently or explicitly negated. In natural language processing, correct interpretation of negated statements requires precise detection of the focus of negation in the statements. As a foundation for developing a negation focus detector for Japanese, we have annotated textdata of “Rakuten Travel: User review data” and the newspaper subcorpus of the “Balanced Corpus of Contemporary Written Japanese” with labels proposed in our annotation scheme. We report 1,327 negation cues and the foci in the corpora, and present classification of these foci based on syntactic types and semantic types. We also propose a system for detecting the focus of negation in Japanese using 16 heuristic rules and report the performance of the system.