The Design and Architecture of the tau-Synopses System

Data synopses are concise representations of data sets, that enable effective processing of approximate queries to the data sets. The tau-Synopses is a system designed to provide a run-time environment for remote execution of multiple synopses for both relational as well as XML databases. The system can serve as an effective research platform for experimental evaluation and comparison of different synopses, as well as a platform for studying the effective management of multiple synopses in a federated or centralized environment.