TY - GEN
T1 - Query snowball
T2 - 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies, ACL-HLT 2011
AU - Morita, Hajime
AU - Sakai, Tetsuya
AU - Okumura, Manabu
PY - 2011/12/1
Y1 - 2011/12/1
N2 - We propose a new method for query-oriented extractive multi-document summarization. To enrich the information need representation of a given query, we build a co-occurrence graph to obtain words that augment the original query terms. We then formulate the summarization problem as a Maximum Coverage Problem with Knapsack Constraints based on word pairs rather than single words. Our experiments with the NTCIR ACLIA question answering test collections show that our method achieves a pyramid F3-score of up to 0.313, a 36% improvement over a baseline using Maximal Marginal Relevance.
AB - We propose a new method for query-oriented extractive multi-document summarization. To enrich the information need representation of a given query, we build a co-occurrence graph to obtain words that augment the original query terms. We then formulate the summarization problem as a Maximum Coverage Problem with Knapsack Constraints based on word pairs rather than single words. Our experiments with the NTCIR ACLIA question answering test collections show that our method achieves a pyramid F3-score of up to 0.313, a 36% improvement over a baseline using Maximal Marginal Relevance.
UR - http://www.scopus.com/inward/record.url?scp=84859070157&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859070157&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84859070157
SN - 9781932432886
T3 - ACL-HLT 2011 - Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies
SP - 223
EP - 229
BT - ACL-HLT 2011 - Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics
Y2 - 19 June 2011 through 24 June 2011
ER -