图 书 馆
回答问题专家群体的演变Evolution of Experts in Question Answering Communities |
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| 课程网址: | http://videolectures.net/icwsm2012_pal_evolution/ |
| 主讲教师: | Aditya Pal |
| 开课单位: | 明尼苏达大学 |
| 开课时间: | 2012-07-06 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Community Question Answering (CQA) services thrive as a result of a small number of highly active users, typically called experts, who provide a large number of high quality useful answers. Understanding the temporal dynamics and interactions between experts can present key insights into how community members evolve over time. In this paper, we present a temporal study of experts in CQA and analyze the changes in their behavioral patterns over time. Further, using unsupervised machine learning methods, we show the interesting evolution patterns that can help us distinguish experts from one another. Using supervised classification methods, we show that the models based on evolutionary data of users can be more effective at expert identification than the models that ignore evolution. We run our experiments on two large online CQA to show the generality of our proposed approach. |
| 关 键 词: | 社区问答; 时间研究; 机器学习方法 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-04-27：lxf |
| 阅读次数: | 63 |