We've entered a data-driven era, in which data are
continuously acquired for a variety of purposes. The ability to make timely
decisions based on available data is crucial to business success, clinical
treatments, cyber and national security, and disaster management. Additionally,
the data generated from large-scale simulations, astronomical observatories,
high-throughput experiments, or high-resolution sensors will help lead to new
discoveries if scientists have adequate tools to extract knowledge from them.
However, most data have become simply too large and often
have too short a lifespan. Almost all fields of study and practice sooner or
later will confront this big data problem. Government agencies and large
corporations are launching research programs to address the challenges
presented by big data. Visualization has been shown to be an effective tool not
only for presenting essential information in vast amounts of data but also for
driving complex analyses. Big data analytics and discovery present new research
opportunities to the computer graphics and visualization community. This 2013
theme issue of IEEE Computer Graphics and Applications aims to highlight the
latest advancements in solving the big data problems via visual means. Computer
magazine will also be publishing a special issue on big data in June 2013.
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