Knowledge Systems Laboratory
Knowledge Provenance Infrastructure
The web lacks support for explaining information provenance.
When web applications return answers, many users do not know what
information sources were used, when they were updated,
how reliable the source was, or what information was looked up
Support for information provenance is expected to be a harder
problem in the Semantic Web where more answers result from
some maniputiaton of information (instead of simple retrieval of
Manipulation includes, among other things,
retrieving, matching, aggregating, filtering, and
deriving information possibly from multiple sources.
This article defines a broad notion of information provenance
called knowledge provenance that includes
proof-like information on how a question answering system arrived
at its answer(s).
The article also describes an approach for a knowledge provenance
infrastructure supporting the extraction, maintenance, and usage of
knowledge provenance related to answers of web applications and
Paulo Pinheiro da Silva, Deborah L. McGuinness, and Rob McCool.
Knowledge Provenance Infrastructure.
In Data Engineering Bulletin Vol.26 No.4, pages 26-32, December 2003.
pdf version and
version is available.
Selected Papers of Deborah L. McGuinness.
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