Query discovery for schema mapping

For this class we'll be discussing two papers:

Renée J. Miller, Laura M. Haas, Mauricio A. Hernández: Schema Mapping as Query Discovery. VLDB 2000: 77-88. We're reading this paper to give us a good introduction to the problem of finding queries to fill in the details of those correspondences we've been finding so far.
L. Popa, Y. Velegrakis, M. Hernandez, R. J. Miller, and R. Fagin, Translating Web Data., in 28th International Conference for Very Large Databases (VLDB 2002), August 2002. We are reading this paper because it gives a later snapshot of work by many of the same authors and also concentrates on the slightly different application of translating web data.

How to read the first paper:

pay close attention to the key principles they're using to guide the mapping construction (bottom of first column of the fourth page - the page is numbered 80)
In section 2.3, don't worry about the concept of dominance preserving mappings - we'll be discussing that later.

The second paper should be straightforward to understand given the caveats for the first paper.

WebCT discussions

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Rachel Pottinger
E-mail Address: rap [at] cs [dot] ubc [dot] ca

Office Location: CICSR 393
Phone: (604)822-0436
Fax:(604)822-5485
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The Department of Computer Science
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