Hermes: a travel through semantics on the data web

Authors:
Haofen Wang;Thomas Penin;Kaifeng Xu;Junquan Chen;Xinruo Sun;Linyun Fu;Qiaoling Liu;Yong Yu;Thanh Tran;Peter Haase;Rudi Studer
Affiliations:
Shanghai Jiao Tong University, Shanghai, China;Shanghai Jiao Tong University, Shanghai, China;Shanghai Jiao Tong University, Shanghai, China;Shanghai Jiao Tong University, Shanghai, China;Shanghai Jiao Tong University, Shanghai, China;Shanghai Jiao Tong University, Shanghai, China;Shanghai Jiao Tong University, Shanghai, China;Shanghai Jiao Tong University, Shanghai, China;Institute AIFB, Universität Karlsruhe, Karlsruhe, Germany;Institute AIFB, Universität Karlsruhe, Karlsruhe, Germany;Institute AIFB, Universität Karlsruhe, Karlsruhe, Germany
Venue:
Proceedings of the 2009 ACM SIGMOD International Conference on Management of data
Year:
2009

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Abstract

The Web as a global information space is developing from a Web of documents to a Web of data. This development opens new ways for addressing complex information needs. Search is no longer limited to matching keywords against documents, but instead complex information needs can be expressed in a structured way, with precise answers as results. In this paper, we demonstrate Hermes, an infrastructure for data web search. To provide an end-user oriented interface, we support expressive keyword search by translating user information needs into structured queries. We integrate heterogeneous web data sources with automatically computed mappings. Schema-level mappings are exploited in constructing structured queries against the integrated schema. These structured queries are decomposed into queries against the local web data sources, which are then processed in a distributed way.