@InProceedings{Shimada-EtAl:2008:PACLIC2008, author = {Kazutaka Shimada and Daigo Hashimoto and Tsutomu Endo}, title = {Sentiment Sentence Extraction Using a Hierarchical Directed Acyclic Graph Structure and a Bootstrap Approach}, booktitle = {Proceedings of the 22nd Pacific Asia Conference on Language, Information and Computation}, year = {2008}, month = {November}, address = {The University of the Philippines Visayas Cebu College, Cebu City, Philippines}, publisher = {De La Salle University, Manila, Philippines}, pages = {341--349}, url = {http://www.aclweb.org/anthology/Y08-1034} }