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V-Optimal Histogram & MaxDiff histogram

Posted on 2007-03-18
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Can someone give an simple example of V-Optimal Histogram and MaxDiff histogram?
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Question by:mawingpui
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nedfine earned 125 total points
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V-Optimal: In a V-Optimal histogram, the weighted sum of the variances of the source parameters values in each bucket is minimized, where the weights are equal to the number of values in the corresponding buckets.

MaxDiff. In a MaxDiff histogram, there is a bucket boundary between two source parameter values that are adjacent (in sort parameter order) if the difference between these values is one of the .beta.-1 largest such differences.



http://delivery.acm.org/10.1145/310000/304203/p239-blohsfeld.pdf?key1=304203&key2=5604544711&coll=&dl=acm&CFID=15151515&CFTOKEN=6184618
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