图 书 馆
基于语言证据的查询扩展Query expansion based on linguistic evidence |
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| 课程网址: | http://videolectures.net/russir2010_sokirko_soloviev_yandex/ |
| 主讲教师: | Evgeniy Soloviev, Alexei Sokirko |
| 开课单位: | Yandex 公司 |
| 开课时间: | 2011-03-18 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | As search engine users get lazier, the search queries become shorter and muddier. There is no sense in making users ask only accurate queries, so the problem of query expansion and reformulating is getting more and more urgent. In principle query reformulation without semantic losses is often impossible, that’s why methods of finding near-synonyms that are sensitive to the query context should be employed. We show that very simple methods of synonym mining being applied to the very large corpora like Russian Internet are quite effective. The paper argues the importance of query logs or anchor texts as comparatively new linguistic resources. We discuss the ways query expansions improve search engine relevance or degrade it even if they seem to fit the query context. |
| 关 键 词: | 搜索引擎; 同义词挖掘方法; 语言资源 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-07-17：yumf |
| 阅读次数: | 60 |