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Detecting Opinion Polarities using Kernel Methods

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Figure

Figure 1: A sample tree and examples of its subtree and subset tree fragments
Figure 2: N-gram tree for Good, fast service. and examples of its unigram, bigram and trigram fragments
Table 1: Number of sentences, aspect terms and their polarity distributions in the data sets
Table 2: Accuracy of majority baseline, hand-crafted (HC) unigram+bigram features, any-gram kernel(NGTK) and syntax tree kernel systems (SyTK) and best SemEval 2014 system, evaluated on the laptopand restaurant development and test sets, based on exact string match and word embedding similarity
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