TY - CHAP U1 - Konferenzveröffentlichung A1 - Wiegand, Michael A1 - Klakow, Dietrich T1 - The Role of Predicates in Opinion Holder Extraction T2 - Proceedings of the RANLP 2011 Workshop on Information Extraction and Knowledge Acquisition,16 September, 2011, Hissar, Bulgaria N2 - In this paper, we investigate the role of predicates in opinion holder extraction. We will examine the shape of these predicates, investigate what relationship they bear towards opinion holders, determine what resources are potentially useful for acquiring them, and point out limitations of an opinion holder extraction system based on these predicates. For this study, we will carry out an evaluation on a corpus annotated with opinion holders. Our insights are, in particular, important for situations in which no labelled training data are available and only rule-based methods can be applied. KW - Information Extraction KW - Computerlinguistik KW - Prädikat KW - Maschinelles Lernen KW - Natürliche Sprache KW - Sentimentanalyse Y1 - 2011 U6 - https://nbn-resolving.org/urn:nbn:de:bsz:mh39-84564 UN - https://nbn-resolving.org/urn:nbn:de:bsz:mh39-84564 UR - https://aclanthology.info/papers/W11-4004/w11-4004 SN - 978-954-452-018-2 SB - 978-954-452-018-2 SP - 13 EP - 20 PB - Incoma Ltd. CY - Shoumen ER -