Postcards from CHINA

Greg reports he can halve the median MRE as follows:

1. take data
2. cluster using k=10 means
3. assign a weight alpha to each cluster
4. learn alpha by random sampling (assessing each sample with LSR), selecting best alphas via bore

Results:

• nasa93: median(MRE) now 0.4, was 0.61.
  
• cocomonasa: median(MRE) now 0.39, was 0.64
  

• Nasa93:
          #key, ties, win, loss, win-loss
   oversampled,    0,   1,    0,        1
      original,    0,   0,    1,       -1
  
  cocomonasa:
          #key, ties, win, loss, win-loss
   oversampled,    0,   1,    0,        1
      original,    0,   0,    1,       -1
  
  Combined:
                    #key, ties, win, loss, win-loss
  oversampled|nasa93    ,    1,   2,    0,        2
  oversampled|cocomonasa,    1,   2,    0,        2
  original|nasa93       ,    1,   0,    2,       -2
  original|cocomonasa   ,    1,   0,    2,       -2