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• W4225692059 abstract "Aspect-level sentiment classification aims to integrating the context to predict the sentiment polarity of aspect-specific in a text, which has been quite useful and popular, e.g., opinion survey and products’ recommending in e-commerce. Many recent studies exploit a Long Short-Term Memory (LSTM) networks to perform aspect-level sentiment classification, but the limitation of long-term dependencies is not solved well, so that the semantic correlations between each two words of the text are ignored. In addition, traditional classification model adopts SoftMax function based on probability statistics as classifier, but ignores the words’ features in the semantic space. Support Vector Machine (SVM) can fully use the information of characteristics, and it is appropriate to make classification in the high-dimensional space, however, which just considers the maximum distance between different classes and ignores the similarities between different features of the same classes. To address these defects, we propose the two-stage novel architecture named Self Attention Networks and Adaptive SVM (SAN-ASVM) for aspect-level sentiment classification. In the first stage, in order to overcome the long-term dependencies, Multi-Heads Self Attention (MHSA) mechanism is applied to extract the semantic relationships between each two words; furthermore, 1-hop attention mechanism is designed to pay more attention on some important words related to aspect-specific. In the second stage, ASVM is designed to substitute the SoftMax function to perform sentiment classification, which can effectively make multi-classifications in high-dimensional space. Extensive experiments on SemEval2014, SemEval2016 and Twitter datasets are conducted, and compared experiments prove that SAN-ASVM model can obtain better performance." @default.
• W4225692059 created "2022-05-05" @default.
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• W4225692059 date "2022-02-21" @default.
• W4225692059 modified "2023-10-13" @default.
• W4225692059 title "Self-Attention Networks and Adaptive Support Vector Machine for aspect-level sentiment classification" @default.
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• W4225692059 doi "https://doi.org/10.1007/s00500-022-06793-7" @default.
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