Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
The rapidly increasing number of XML-related applications indicates a growing need for efficient, dynamic, and native XML support in database management systems (XDBMS). So far, bo...
Although many efficient concurrency control protocols have been proposed for real-time database systems, they are mainly designed for the systems with a single type of real-time t...
Continuous queries are persistent queries that allow users to receive new results when they become available. While continuous query systems can transform a passive web into an ac...
Jianjun Chen, David J. DeWitt, Feng Tian, Yuan Wan...
Our understanding of biological systems is highly dependent on the study of the mechanisms that regulate genetic expression. In this paper we present a tool to evaluate scientific ...