Knowledge Systems Laboratory
Abstract: IWTrust: Improving User Trust in Answers from the Web
Managing semantic heterogeneity is a complex task.
One solution involves matching like terms to each other.
We view Match as an operator that takes two graph-like structures
(e.g., concept hierarchies or ontologies) and returns a mapping between
the nodes of the graphs that correspond semantically to each other.
State of the art matching systems (e.g., COMA, Cupid) perform well for
many real world applications. However, matching systems may produce mappings
that may not be intuitively obvious to human users. Moreover, there are
cases where matching systems do not produce a useful mapping. In order
for users to trust the mappings (and thus use them), they need to understand
them. Also, if a system does not provide a mapping or provides a partial
mapping, users need to understand answers so that they can understand either
why a mapping was not produced or why only a partial answer was produced. In
this paper we describe how matching systems can explain their answers using
the Inference Web (IW) infrastructure. There, S-Match, a semantic matching
system, produces proofs for mappings it has discovered. Using the IW browser,
users may visualize different explanations including provenance information,
the derivation path of the mappings, etc.
Ilya Zaihrayeu, Paulo Pinheiro da Silva and Deborah L. McGuinness. IWTrust:
Improving User Trust in Answers from the Web.
Proceedings of 3rd International Conference on Trust Management
Springer, Rocquencourt, France, 2005.
version is available.
Selected Papers of Deborah L. McGuinness.
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