图 书 馆
英语和西班牙语在多个领域的非正式情绪分析Informal sentiment analysis in multiple domains for English and Spanish |
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| 课程网址: | http://videolectures.net/is2012_stajner_sentiment_analysis/ |
| 主讲教师: | Tadej Štajner |
| 开课单位: | 约瑟夫·斯特凡学院 |
| 开课时间: | 2012-11-16 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | This paper addresses the problem of sentiment analysis in an informal setting in multiple domains and in two languages. We explore the influence of using background knowledge in the form of different sentiment lexicons, as well as the influence of various lexical surface features. We show that the improvement resulting from using a two-layer model, sentiment lexicons, surface features and feature scaling is most notable on social media datasets in both English and Spanish. For English, we are also able to demonstrate improvement on the news domain using sentiment lexicons and a large improvement on the social media domain. We also demonstrate that domain-specific lexicons bring comparable performance to generalpurpose lexicons. |
| 关 键 词: | 情感分析; 双层模型; 特征尺度; 社交媒体数据 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-07-23：yumf |
| 阅读次数: | 70 |