Identifying Example Segments based on Relations between Hyponymy and Themes in a Document

Abstract

Recognizing logical paragraphs and relations of points in documents helps us to comprehend the documents. The logical paragraphs contain various segments such as "elabora- tion", "contrast" and "example". The authors often write their insistence using abstract terms. Therefore, they express their insistence in concrete cases with the examples, and accelerate to comprehend the documents. In this paper, we identify the example segments based on relations between hyponymy and themes in a document. We consider that sentences which contain concrete terms are divided into two types. The first type expresses themes, and the second type expresses examples. We calculate a rate of theme terms in a sentence, and capture whether the sentence expresses the themes or not. Thus, we find out that the sentence is likely to express the example if the sentence is not likely to express the theme. In our experimental evaluation, we confirmed that our proposed method scored better recall and F-measure than the baseline method.