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ICWSM — A Great Catchy Name: Semi-Supervised Recognition of Sarcastic Sentences in Online Product ReviewsICWSM — A Great Catchy Name: Semi-Supervised Recognition of Sarcastic Sentences in Online Product Reviews |
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| 课程网址: | http://videolectures.net/icwsm2010_tsur_gcn/ |
| 主讲教师: | Oren Tsur |
| 开课单位: | 哈佛大学 |
| 开课时间: | 2010-06-29 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Sarcasm is a sophisticated form of speech act widely used in online communities. Automatic recognition of sarcasm is, however, a novel task. Sarcasm recognition could contribute to the performance of review summarization and ranking systems. This paper presents SASI, a novel Semi-supervised Algorithm for Sarcasm Identification that recognizes sarcastic sentences in product reviews. SASI has two stages: semi-supervised pattern acquisition, and sarcasm classification. We experimented on a data set of about 66000 Amazon reviews for various books and products. Using a gold standard in which each sentence was tagged by 3 annotators, we obtained precision of 77% and recall of 83.1% for identifying sarcastic sentences. We found some strong features that characterize sarcastic utterances. However, a combination of more subtle pattern-based features proved more promising in identifying the various facets of sarcasm. We also speculate on the motivation for using sarcasm in online communities and social networks. |
| 关 键 词: | 网络社区; 自动识别; 半监督模式 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-04-26：lxf |
| 阅读次数: | 69 |