Title:   Survey on quality-based integration
Speaker: Heasoo Hwang (UCSD)

Abstract:

The talk is a presentation of existing works on quality-
based integration. The main paper presented is
"Quality-driven Integration of Heterogeneous Information Systems"
by Felix Naumann and Ulf Leser. Its abstract is shown below:

"Integrated access to information that is spread over multiple,
distributed, and heterogeneous sources is an important problem
in many scientific and commercial domains. While much work has
been done on query processing and choosing plans under cost
criteria, very little is known about the important problem of
incorporating the information quality aspect into query planning.

In this paper we describe a framework for multidatabase query
processing that fully includes the quality of information in many
facets, such as completeness, timeliness, accuracy, etc. We
seamlessly include information quality into a multidatabase
query processor based on a view-rewriting mechanism. We model
information quality at different levels to ultimately and a set
of high-quality query-answering plans."