@InProceedings{wiegand-klakow:2011:IEKA, author = {Wiegand, Michael and Klakow, Dietrich}, title = {The Role of Predicates in Opinion Holder Extraction}, booktitle = {Proceedings of the RANLP 2011 Workshop on Information Extraction and Knowledge Acquisition}, month = {September}, year = {2011}, address = {Hissar, Bulgaria}, pages = {13--20}, url = {http://aclweb.org/anthology/W11-4004} series = {IEKA'11} }