Summarization of multiple documents with rhetorical annotation

Sohei Aya; Yutaka Matsuo; Naoaki Okazaki; Kôiti Hasida; Mitsuru Ishizuka

doi:10.1527/tjsai.20.149

Summarization of multiple documents with rhetorical annotation

Sohei Aya^*, Yutaka Matsuo, Naoaki Okazaki, Kôiti Hasida, Mitsuru Ishizuka

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

In this paper, we propose a new algorithm of summarization which targets a new kind of structured contents. The structured content, which is to be created by semantic authoring, consists of sentenses and rhetorical relation among sentences: It is represented by a graph, where a node is a sentence and an edge is a rhetorical relation. We simulate creating this content graph by using news paper articles that are annotated rhetorical relations by a GDA tagset. Our summarization method basically uses spreading activation over the content graph, followed by particular postprocesses to increase readability of the resultant summary. Experimental evaluation shows our method is at least equal to or better than Lead method for summarizing news paper articles.

Original language	English
Pages (from-to)	149-158
Number of pages	10
Journal	Transactions of the Japanese Society for Artificial Intelligence
Volume	20
Issue number	3
DOIs	https://doi.org/10.1527/tjsai.20.149
Publication status	Published - 2005
Externally published	Yes

Keywords

Automatic summarization
Rhetorical structure theory
Semantic authoring
Spreading activation

ASJC Scopus subject areas

Artificial Intelligence

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10.1527/tjsai.20.149

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AU - Aya, Sohei

AU - Matsuo, Yutaka

AU - Okazaki, Naoaki

AU - Hasida, Kôiti

AU - Ishizuka, Mitsuru

PY - 2005

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AB - In this paper, we propose a new algorithm of summarization which targets a new kind of structured contents. The structured content, which is to be created by semantic authoring, consists of sentenses and rhetorical relation among sentences: It is represented by a graph, where a node is a sentence and an edge is a rhetorical relation. We simulate creating this content graph by using news paper articles that are annotated rhetorical relations by a GDA tagset. Our summarization method basically uses spreading activation over the content graph, followed by particular postprocesses to increase readability of the resultant summary. Experimental evaluation shows our method is at least equal to or better than Lead method for summarizing news paper articles.

KW - Automatic summarization

KW - Rhetorical structure theory

KW - Semantic authoring

KW - Spreading activation

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Summarization of multiple documents with rhetorical annotation

Abstract

Keywords

ASJC Scopus subject areas

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