Perhaps the most basic synopsis of a data stream is a sample of elements from the stream. A
key benefit of such a sample is its flexibility: the sample can serve as input to a wide variety …

Joins are expensive, and online aggregation over joins was proposed to mitigate the cost,
which offers users a nice and flexible tradeoff between query efficiency and accuracy in a …

The stated goal for visual data exploration is to operate at a rate that matches the pace of
human data analysts, but the ever increasing amount of data has led to a fundamental …

Visualization provides a powerful means for data analysis. But to be practical, visual
analytics tools must support smooth and flexible use of visualizations at a fast rate. This …

Fault tolerance is critical for distributed stream processing systems, yet achieving error-free
fault tolerance often incurs substantial performance overhead. We present AF-Stream, a …

Modern computing devices and user interfaces have necessitated highly interactive
querying. Some of these interfaces issue a large number of dynamically changing and …

Enterprise databases use storage tiering to lower capital and operational expenses. In such
a setting, data waterfalls from an SSD-based high-performance tier when it is" …

The objective of the study presented in this paper is to examine the effects of gender
difference on the job satisfaction of information technology professionals in Poland, a …

In this paper state-of-the-art hardware and software technologies for stream data processing
are reviewed. IBM InfoSphere Streams and Apache Spark are among of the most popular …

Joins are expensive, and online aggregation over joins was proposed to mitigate the cost,
which offers a nice and flexible tradeoff between query efficiency and accuracy in a …