TY - CHAP U1 - Konferenzveröffentlichung A1 - Wiegand, Michael A1 - Klakow, Dietrich T1 - Separating Brands from Types: an Investigation of Different Features for the Food Domain T2 - Proceedings of COLING 2014, the 25th International Conference on Computational Linguistics, August 23-29, 2014, Dublin, Ireland: Technical Papers N2 - We examine the task of separating types from brands in the food domain. Framing the problem as a ranking task, we convert simple textual features extracted from a domain-specific corpus into a ranker without the need of labeled training data. Such method should rank brands (e.g. sprite) higher than types (e.g. lemonade). Apart from that, we also exploit knowledge induced by semi-supervised graph-based clustering for two different purposes. On the one hand, we produce an auxiliary categorization of food items according to the Food Guide Pyramid, and assume that a food item is a type when it belongs to a category unlikely to contain brands. On the other hand, we directly model the task of brand detection using seeds provided by the output of the textual ranking features. We also harness Wikipedia articles as an additional knowledge source. KW - Computerlinguistik KW - Natürliche Sprache KW - Information Extraction KW - Maschinelles Lernen KW - Lebensmittel Y1 - 2014 U6 - https://nbn-resolving.org/urn:nbn:de:bsz:mh39-84874 UN - https://nbn-resolving.org/urn:nbn:de:bsz:mh39-84874 UR - https://aclanthology.info/papers/C14-1216/c14-1216 SN - 978-1-941643-26-6 SB - 978-1-941643-26-6 SP - 2291 EP - 2302 PB - Dublin City University CY - Dublin ER -