By Antonio Rosado, Rita A. Ribeiro, Slawomir Zadrozny, Janusz Kacprzyk (auth.), Gloria Bordogna Dr., Giuseppe Psaila Professor (eds.)

This quantity collects chosen contributions at the software of heterogeneous tools for coping with uncertainty and imprecision in databases. It includes either survey chapters on vintage subject matters similar to "flexible querying in databases", and recent ontributions
on "database types to symbolize imperfect data". Further, it comprises particular contributions on uncertainty administration in database integration, and in representing and
querying semistructured and spatial info. those themes are of specific relevance these days with the diffusion of the web considering the fact that, more often than not, functions require info unfold throughout numerous info resources and their integration may end up in inconsistent info. Semistructured details querying frequently demands the appliance of approximate matching recommendations, and spatial details is frequently incomplete and vague. analyzing this quantity can function a consultant to scholars for having a breathtaking view of the how to deal with uncertainty and imprecision in databases proposed up to now, to researchers to target the hottest learn developments, and to practitioners for having examples within which present databases include versatile functionalities for the administration of uncertainty and imprecision.