A Multivariate Statistical Model for Data Base Performance Evaluation
Stavros Christodoulakis · Birkhäuser Boston eBooks · 1982
A variety of data base performance evaluation studies require an estimation of the number of records qualifying in a query or a set of queries (record selectivities). This paper presents a multivariate statistical model for the estimation of record selectivities. The model takes into account non-uniformity and correlations of the attribute values in the data base, as well as non-uniformity and correlations of the attribute values in queries. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.