Abstract
Breaking down documents into small units, unit weighting and unit selection are two important factors in summarization of multiple related documents. This paper presents an investigation on performance of several variants of unit weighting and selection schemes on Thai multi-document summarization. Fifty sets of Thai news articles with their reference summaries are used to evaluate the performance of various weighting and selection methods. Compared to PageRank and Maximal Marginal Relevance (MMR) with four ROUGE measures, the results show that iterative weighting gets higher performance of traditional TF-IDF, the iterative node weighting, query relevance, centroid-based selection, and unit redundancy consideration can help improving summary quality.
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Acknowledgments
This work was supported by the National Research University Project of Thailand Office of Higher Education Commission, Thammasat Center of Excellence in Intelligent Informatics, Speech and Language Technology and Service Innovation, and Rajamangala University of Technology Lanna Nan. We would like to thank to all members at KINDML laboratory at Sirindhorn International Institute of Technology for fruitful discussion.
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Ketui, N., Theeramunkong, T. (2016). Investigating Unit Weighting and Unit Selection Factors in Thai Multi-document Summarization. In: Kunifuji, S., Papadopoulos, G., Skulimowski, A., Kacprzyk  , J. (eds) Knowledge, Information and Creativity Support Systems. Advances in Intelligent Systems and Computing, vol 416. Springer, Cham. https://doi.org/10.1007/978-3-319-27478-2_14
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DOI: https://doi.org/10.1007/978-3-319-27478-2_14
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