Module 7:Data Representation
  Lecture 36: V-optimal Histograms
 

                                            

 

 

Algorithm
  • Assume optimal partitioning for the first i values with at most bins is
  • Consider placement of the last bin
  • Choice is any of the i gaps
  • For each such placement at gap , at most bins have been placed optimally for the first values
  • This leads to the recursion
  • Dynamic programming (DP) solution
  • Table of size
  • Start with cell and proceed in a column-scan order
  • Computation for cell requires values at cells