Karen Khachatryan

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Column stores are becoming popular with data analytics in modern enterprises. However, traditionally, database vendors offer column stores as a different database product all together. As a result there is an all-or-none situation for column store features. To bridge the gap, a recent effort introduced column store functionality in SQL server (a row store)(More)
We consider a committee, board, group or jury that faces a binary collective decision under uncertainty. Each member holds some private information and all members agree about what decision should be taken in each state of nature. However, the state is unknown and members may differ in their valuations of the two types of mistake that may occur, and/or in(More)
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