Database Group Seminar: Putting Context into Schema Matching --- What's up with Purple SOX? September 21, 2007

Speaker: Philip Bohannon, Yahoo! Research

Title: Putting Context into Schema Matching

Attribute-level schema matching has proven to be an important first step in developing mappings for data exchange, integration, restructuring and schema evolution. We investigate "contextual" schema matching, in which selection conditions are associated with matches by the schema matching process in order to improve overall match quality. We define a general space of matching techniques, and within this framework we identify a variety of novel, concrete algorithms for contextual schema matching. Furthermore, we show how common schema mapping techniques can be generalized to take more effective advantage of contextual matches, enabling automatic construction of mappings across certain forms of schema heterogeneity.

Title: What's Up with 'Purple SOX'?

I will give a high-level overview of the 'Purple SOX' Extraction Management System. This project, an outgrowth of the Cimple project with the University of Wisconsin, is an effort to build a 'data management surround' for information extraction to support extensibility, explain-ability, and to maximize the utilization of social feedback on information quality.

Official Website: http://db.cs.berkeley.edu/dblunch.php