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Used Hierarchical Topic to Generate Multi-document Automatic Summarization

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4 Author(s)
Xu Yong-Dong ; Sch. of Comput. Sci. of Technol., Harbin Inst. of Technol. at WeiHai, Wei Hai, China ; Quan Guang-Ri ; Zhang Ting-Bin ; Wang Ya-Dong

A concept of hierarchical topic is proposed for multi-document automatic summarization task, which used multi-layer topic tree structure to represent the text set. Each node in the topic tree represent specific topic and contains multiple similar sentences in the text set. The hierarchical topic structure may describe accurately the similarity between sentences at different levels of granularity. Therefore it can reflect the real content of the text set than single layer topic set. And can be used to find the important sentences in the important topic which can compose the summary of the text set. Concretely, a series of algorithms including building hierarchical topic tree, key sentences extraction based on hierarchical topic tree and summarization generation are proposed. The capability of summarization system is testified by sets of experiments and shows good result.

Published in:

Intelligent Computation Technology and Automation (ICICTA), 2011 International Conference on  (Volume:1 )

Date of Conference:

28-29 March 2011