图 书 馆
语义搜索：调和查询和探索性搜索的表现Semantic Search: Reconciling Expressive Querying and Exploratory Search |
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| 课程网址: | http://videolectures.net/iswc2011_ferre_semantic/ |
| 主讲教师: | Sébastien Ferré |
| 开课单位: | 法国雷恩第一大学 |
| 开课时间: | 2011-11-25 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | Faceted search and querying are two well-known paradigms to search the Semantic Web. Querying languages, such as SPARQL, offer expressive means for searching RDF datasets, but they are difficult to use. Query assistants help users to write well-formed queries, but they do not prevent empty results. Faceted search supports exploratory search, i.e., guided navigation that returns rich feedbacks to users, and prevents them to fall in dead-ends (empty results). However, faceted search systems do not offer the same expressiveness as query languages. We introduce Query-based Faceted Search (QFS), the combination of an expressive query language and faceted search, to reconcile the two paradigms. In this paper, the LISQL query language generalizes existing semantic faceted search systems, and covers most features of SPARQL. A prototype, Sewelis (aka. Camelis 2), has been implemented, and a usability evaluation demonstrated that QFS retains the ease-of-use of faceted search, and enables users to build complex queries with little training. |
| 关 键 词: | 探索性搜索; 语义网; 数据集; 检索系统 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2019-12-19：lxf |
| 阅读次数: | 64 |