Abstract Supporting database schema evolution repre-sents a long-standing challenge of practical and theoretical importance for modern information systems. In this paper, we describe techniques and systems for automating the critical tasks of migrating the database and rewriting the legacy

education on the internet, free of charge, a real possibility. At this pivotal moment it is appropriate to explore the potential for obtaining comprehensive bioinformatics training with currently existing free video resources. This article pre-sents such a bioinformatics curric-ulum in the form of a virtual

to solve them. A wide range of topics is covered including physics-based models for direct and indirect recognition, identification of transcription factor binding sites, and methods to predict DNA-binding proteins. Our goal is to introduce this important problem domain to data mining researchers