The IEEE Symposium on Large Data Analysis and Visualization will be co-located with VisWeek again this year, in October. Papers are due May 15 (abstracts on May 8), and more info is at The Symposium focuses on techniques for the collection, analysis, manipulation or visualization of large-scale data including topics such as novel, extreme or innovative methods for understanding and interacting with data; data mining and machine learning techniques for large data analysis; topics in cognitive issues specific to manipulating data. Dan Best presented here a couple years ago, so you could ask him what it's like if you have questions.