header

Hermes: Data Web Search on a Pay-as-You-Go Integration Infrastructure

15 Pages Posted: 8 Jul 2018 Publication Status: Accepted

See all articles by Thanh Tran

Thanh Tran

Karlsruhe Institute of Technology - Institute of Applied Informatics and Formal Description Methods (AIFB)

Haofen Wang

Shanghai Jiao Tong University (SJTU); Gowild Robotics Co. Ltd

Peter Haase

Karlsruhe Institute of Technology - Institute of Applied Informatics and Formal Description Methods (AIFB)

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 present Hermes, an infrastructure for data Web search that addresses a number of challenges involved in realizing search on the data Web. To provide an end-user oriented interface, we support expressive user information needs by translating keywords 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. Finally, heterogeneous result sets are combined using an algorithm called map join, making use of data-level mappings. In evaluation experiments with real life data sets from the data Web, we show the practicability and scalability of the Hermes infrastructure.

Keywords: Structured search, Web of data, Data integration

Suggested Citation

Tran, Thanh and Wang, Haofen and Haase, Peter, Hermes: Data Web Search on a Pay-as-You-Go Integration Infrastructure (2009). Journal of Web Semantics First Look, Available at SSRN: https://ssrn.com/abstract=3199428 or http://dx.doi.org/10.2139/ssrn.3199428

Thanh Tran (Contact Author)

Karlsruhe Institute of Technology - Institute of Applied Informatics and Formal Description Methods (AIFB) ( email )

Kaiserstraße 12
Karlsruhe, Baden Württemberg 76131
Germany

Haofen Wang

Shanghai Jiao Tong University (SJTU) ( email )

KoGuan Law School
Shanghai 200030, Shanghai 200052
China

Gowild Robotics Co. Ltd ( email )

Shenzhen, 518057
China

Peter Haase

Karlsruhe Institute of Technology - Institute of Applied Informatics and Formal Description Methods (AIFB) ( email )

Kaiserstraße 12
Karlsruhe, Baden Württemberg 76131
Germany

Do you have a job opening that you would like to promote on SSRN?

Paper statistics

Abstract Views
240
Downloads
3
PlumX Metrics