rectangular decomposition fo signature file; design issues and performane evlauation

摘要

Signature file acts as a filter to eliminate the unqulaified data items for an information reuqirest.The contriution sof this paer is two-fold.First,we propsoe a mehtodology for structured database.The main idea of decompositon amounts to dividing the relations rectangular decompositin ha a direct benefit in a reducitn of false drop probability.