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Old wine or warm beer: target-specific sentiment analysis of adjectives

. In this paper, we focus on the target-speciﬁc polarity determination of adjectives. A domain-speciﬁc noun, the target noun, is modiﬁed by a qualifying adjective. Rather than having a prior polarity, adjectives are often bearing a target-speciﬁc polarity. In some cases, a single adjective even switches polarity depending on the accompanying noun. In order to realise such a ’sentiment disam-biguation’, a two stage model is proposed: Identiﬁcation of domain-speciﬁc targets and the construction of a target-speciﬁc polarity adjective lexicon. We use Wikipedia for automatic target detection, and a bootstrapping approach to determine the target-speciﬁc adjective polarity. It can be shown that our approach outperforms a baseline system that is based on a prior adjective lexicon derived from SentiWordNet.