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This year’s VAST Challenge presents three mini-challenges to test the skills of visual analytics researchers and developers. These challenges are open to participation by individuals and teams in industry, government, and academia. We encourage your submissions and look forward to seeing your innovative approaches to solving these challenges using visual analytics. See details at VAST Challenge 2018. Challenges will be released throughout the month of April, so check back frequently!

This year’s VAST Challenge presents three mini-challenges to test the skills of designers and visual analytics groups alike. These challenges are open to participation by individuals and teams in industry, government, and academia. We encourage your submissions, and look forward to seeing your innovative approaches to solving these challenges using visual analytics. See details at VAST Challenge 2016.

The special issue of Information Visualization will explore the technical challenges and technology development opportunities of graph visual analytics arising from the trend of big data. Today’s graph problems are increasingly multi-faceted and multi-disciplinary in nature. Many cutting-edge R&D efforts are conducted independently in disparate domains such as bioinformatics, cybersecurity, and predictive machine learning. Although technology transfers in big graph visualization are recognized and growing, many R&D problems and challenges have remained unsolved. Full details at http://vacommunity.org/CFP+Big+Graph+Visual+Analytics