Browse College of Engineering by Author "Ilyas, Ihab F."
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Li, Chengkai; Chang, Kevin Chen-Chuan; Ilyas, Ihab F. (2005-06)In this paper, we develop a principled framework for efficient processing of ad-hoc top-k (ranking) aggregate queries in OLAP. Such queries provide the k groups with the highest aggregates to decision makers. Essential ...
Li, Chengkai; Chang, Kevin Chen-Chuan; Ilyas, Ihab F.; Song, Sumin (2004-07)This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database systems (RDBMS), by extending relational algebra ...