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[Institut fuer Informatik] [Leerraum] [Humboldt-Universitaet zu Berlin]
10.09.2009 10:21 Alter: 10 yrs

New publication: "Using Web Data Provenance for Quality Assessment"

Von: Olaf Hartig and Jun Zhao

The Role of the Semantic Web in Provenance Management Workshop at ISWC 2009, October 2009

Abstract: The Web of Data cannot be a trustworthy data source unless an approach for evaluating the quality of data on the Web is established and integrated as part of the data publication and access process. In this paper, we propose an approach of using provenance information about the data on the Web to assess their quality and trustworthiness. Our contributions include a model for Web data provenance and an assessment method that can be adapted for specific quality criteria. We demonstrate how this method can be used to evaluate the timeliness of data on the Web, to reflect how up-to-date the data is. We also propose a possible solution to deal with missing provenance information by associating certainty values with calculated quality values.