Estimating the selectivity of a query is a key step in almost any cost-based query optimizer.
Most of today's databases rely on histograms or samples that are periodically refreshed by …

Data aggregation protocols are generally utilized to extend the lifetime of sensor networks
by reducing the communication cost. Traditionally, tree-based structured approaches that …

We propose a novel sketching approach for streaming data that, even with limited computing
resources, enables processing high volume and high velocity data efficiently. Our approach …

The availability of modern technology and the recent proliferation of devices and sensors
have resulted in a tremendous amount of data being generated, stored and handled in …