--- symNMF seed 1, r=42
  A. symNMF reconstruction, NO pruning (blind)   GW 0.0312 -> clean-desc 0.0391 -> true-desc 0.0391  E=0.6405
  B. ORACLE prune worst 1 (thr .5)               GW 0.8594 -> clean-desc 0.8594 -> true-desc 0.8672  E=0.3396
  C0. RANDOM single-column drop (col 32, blind)  GW 0.8359 -> clean-desc 0.8281 -> true-desc 0.8359  E=0.3396
  C1. RANDOM single-column drop (col 13, blind)  GW 0.0469 -> clean-desc 0.0430 -> true-desc 0.0469  E=0.6486
  C2. RANDOM single-column drop (col 18, blind)  GW 0.0195 -> clean-desc 0.0156 -> true-desc 0.0156  E=0.6661
  D. both sides symNMF-reconstructed (blind)     GW 0.0234 -> clean-desc 0.0234 -> true-desc 0.0234  E=0.6020
--- symNMF seed 2, r=42
  A. symNMF reconstruction, NO pruning (blind)   GW 0.0156 -> clean-desc 0.0156 -> true-desc 0.0156  E=0.6419
  B. ORACLE prune worst 4 (thr .5)               GW 0.8203 -> clean-desc 0.8125 -> true-desc 0.8203  E=0.3396
  C0. RANDOM single-column drop (col 32, blind)  GW 0.0078 -> clean-desc 0.0078 -> true-desc 0.0078  E=0.6720
  C1. RANDOM single-column drop (col 13, blind)  GW 0.0195 -> clean-desc 0.0195 -> true-desc 0.0195  E=0.7034
  C2. RANDOM single-column drop (col 18, blind)  GW 0.0039 -> clean-desc 0.0039 -> true-desc 0.0039  E=0.6649
  D. both sides symNMF-reconstructed (blind)     GW 0.0156 -> clean-desc 0.0156 -> true-desc 0.0156  E=0.7342
--- symNMF seed 3, r=42
  A. symNMF reconstruction, NO pruning (blind)   GW 0.1328 -> clean-desc 0.1523 -> true-desc 0.1641  E=0.5919
  B. ORACLE prune worst 2 (thr .5)               GW 0.0000 -> clean-desc 0.0000 -> true-desc 0.0000  E=0.6669
  C0. RANDOM single-column drop (col 32, blind)  GW 0.1211 -> clean-desc 0.1172 -> true-desc 0.1211  E=0.5922
  C1. RANDOM single-column drop (col 13, blind)  GW 0.8125 -> clean-desc 0.8203 -> true-desc 0.8203  E=0.3396
  C2. RANDOM single-column drop (col 18, blind)  GW 0.0078 -> clean-desc 0.0117 -> true-desc 0.0117  E=0.6752
  D. both sides symNMF-reconstructed (blind)     GW 0.8398 -> clean-desc 0.8477 -> true-desc 0.8477  E=0.3396