CROEQS: Contemporaneous Role Ontology-based Ezpanded Query Search-Implementation and Evaluation

摘要：

Searching annotated items in multimedia databases becomes increasingly important. The traditional approach is to build a search engine based on textual metadata. However, in manually annotated multimedia databases, the conceptual level of what is searched for might differ from the high-levelness of the annotations of the items. To address this problem, we present CROEQS, a semantically enhanced search engine. It allows the user to query the annotated persons not only on their name, but also on their roles at the time the multimedia item was broadcast We also present the ontology used to expand such queries: it allows us to semantically represent the domain knowledge on people fulfilling a role during a temporal interval in general, and politicians holding a political office specifically. The evaluation results show that query expansion using data retrieved from an ontology considerably filters the result set, although there is a performance penalty.

关键词： semantic search ontologies databases performance

作者: Stijn Vandamme Johannes Deleu Tim Wauters Brecht Vermeulen Filip De Turck

作者单位: INTEC Broadband Communication Networks Ghent University - IBBT Ghent, Belgium INTEC Broadband Communication Networks Ghent University - IBBT Ghent,Belgium

会议类型: 国际会议

会议名称: The International Conference on Communication Software and Networks(2009 IEEE通信软件与网络国际会议 ICCSN 2009)

会议地点: 成都

会议语种:英文

页码: 448-452

在线出版日期: 2009-02-20（万方平台首次上网日期，不代表论文的发表时间）