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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Semantic Path Ranking Scheme for Relational Keyword Queries
verfasst von : Zhong Zeng, Zhifeng Bao, Gillian Dobbie, Mong Li Lee, Tok Wang Ling
Erschienen in: Database and Expert Systems Applications
Verlag: Springer International Publishing
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Existing works on keyword search over relational databases typically do not consider users’ search intention for a query and return many answers which often overwhelm users. We observe that a database is in fact a repository of real world objects that interact with each other via relationships. In this work, we identify four types of semantic paths between objects and design an algorithm called
pathRank
to compute and rank the results of keyword queries. The answers are grouped by the types of semantic paths which reflect different query interpretations, and are annotated to facilitate user understanding.