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Graduation-project-ABAE

毕业设计-基于无监督注意力神经网络的主题提取算法设计

自媒体和智能终端的普及为用户提供了便捷的社交互动渠道,产生了海量的带有用户倾向的评论数据。利用情感分析算法分析海量评论数据,可以帮助电商、政府以及金融机构把握舆情走势。主题提取是情感分析中的关键任务之一,旨在提取用户评论对象。现有有监督学习算法过度依赖人工标注,而标注主题信息耗时费力。为解决该问题,本课题拟设计一种基于注意力机制的无监督学习算法来学习无标注数据中的主题信息。该方法将单词出现统计信息显式地编码到词嵌入中,使用降维方法提取评论语料库中最重要的主题词,并使用注意机制去除不相关的单词,从而提高主题词提取算法的精度。

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