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基于知识语义权重特征的朴素贝叶斯情感分类算法

Keywords: 语义权重特征,朴素贝叶斯,文本情感分类,信息增益

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Abstract:

针对文档级情感分类的准确率低于普通文本分类的问题,提出一种基于知识语义权重特征的朴素贝叶斯情感分类算法.首先,通过特征选择的方法,对情感词典中的词进行重要度评分并赋予不同权重.然后,基于词典极性的分布信息与文档情感分类的相关性,将情感词的语义权重特征融合到朴素贝叶斯分类中,实现了新算法.在标准中文数据集上的实验结果表明,提出的算法在准确率、召回率和F1测度值上都优于已有的一些算法.

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