data: add fine-tuning run results (lr=1e-5, 50 epochs)

val loss 1.24 → 0.80, val perplexity 3.47 → 2.22.
Best epoch 50 (no early stop); convergence epoch 30.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

checkpoints/finetuned.log.csv

@@ -0,0 +1,51 @@
+epoch,train_loss,val_loss,val_ppl,lr,elapsed_s
+1,1.185128,1.244704,3.47,8.000000e-06,9.9
+2,1.129786,1.168368,3.22,9.994161e-06,9.2
+3,1.074786,1.102074,3.01,9.968238e-06,8.8
+4,1.004364,1.045185,2.84,9.921690e-06,8.5
+5,0.963113,0.995150,2.71,9.854709e-06,9.2
+6,0.903885,0.953348,2.59,9.767574e-06,9.1
+7,0.867560,0.927149,2.53,9.660647e-06,8.1
+8,0.848291,0.911215,2.49,9.534372e-06,9.1
+9,0.817798,0.897135,2.45,9.389272e-06,9.2
+10,0.815333,0.885900,2.43,9.225950e-06,8.2
+11,0.804101,0.876820,2.40,9.045085e-06,9.7
+12,0.791397,0.868702,2.38,8.847427e-06,9.2
+13,0.778087,0.860407,2.36,8.633796e-06,8.5
+14,0.771410,0.853698,2.35,8.405079e-06,10.7
+15,0.768661,0.848427,2.34,8.162227e-06,10.7
+16,0.762623,0.842908,2.32,7.906247e-06,9.4
+17,0.749388,0.837927,2.31,7.638201e-06,8.2
+18,0.745191,0.833950,2.30,7.359203e-06,9.1
+19,0.745993,0.830711,2.29,7.070412e-06,9.2
+20,0.726599,0.827279,2.29,6.773024e-06,9.0
+21,0.722057,0.824505,2.28,6.468277e-06,8.4
+22,0.723956,0.822224,2.28,6.157433e-06,9.2
+23,0.721438,0.819970,2.27,5.841785e-06,9.2
+24,0.717564,0.817087,2.26,5.522642e-06,8.1
+25,0.711637,0.814592,2.26,5.201330e-06,9.2
+26,0.712329,0.812606,2.25,4.879181e-06,9.2
+27,0.705078,0.810716,2.25,4.557534e-06,8.1
+28,0.697062,0.808805,2.25,4.237724e-06,9.2
+29,0.700164,0.807415,2.24,3.921079e-06,10.2
+30,0.695335,0.806321,2.24,3.608913e-06,8.7
+31,0.687925,0.804961,2.24,3.302521e-06,8.9
+32,0.691783,0.803864,2.23,3.003177e-06,9.3
+33,0.690663,0.802969,2.23,2.712123e-06,9.3
+34,0.692106,0.801836,2.23,2.430566e-06,8.1
+35,0.691675,0.801080,2.23,2.159676e-06,9.2
+36,0.678919,0.800619,2.23,1.900578e-06,9.2
+37,0.682140,0.800421,2.23,1.654347e-06,8.2
+38,0.689051,0.800192,2.23,1.422005e-06,9.2
+39,0.686498,0.799934,2.23,1.204517e-06,9.3
+40,0.690576,0.799613,2.22,1.002786e-06,8.2
+41,0.684055,0.799269,2.22,8.176493e-07,9.5
+42,0.685102,0.799062,2.22,6.498753e-07,9.3
+43,0.689241,0.798999,2.22,5.001606e-07,8.6
+44,0.689855,0.798879,2.22,3.691268e-07,8.7
+45,0.679218,0.798795,2.22,2.573178e-07,9.1
+46,0.680892,0.798748,2.22,1.651979e-07,9.1
+47,0.688506,0.798713,2.22,9.314937e-08,8.3
+48,0.684029,0.798699,2.22,4.147145e-08,9.2
+49,0.685409,0.798693,2.22,1.037863e-08,9.2
+50,0.684188,0.798692,2.22,0.000000e+00,8.1

checkpoints/finetuned.report.txt

@@ -0,0 +1,67 @@
+
+====================================================
+  FINE-TUNING REPORT
+====================================================
+  Total epochs run      : 50
+  Best epoch (val loss) : 50
+  Convergence epoch     : 30  (val ≤ best+1 %)
+  Best val loss         : 0.7987
+  Best val perplexity   : 2.22
+  Final train loss      : 0.6842
+  Unique parameters     : 1,396,416
+  Checkpoint            : checkpoints/finetuned.pt
+  Log CSV               : checkpoints/finetuned.log.csv
+====================================================
+
+  epoch     train       val      ppl          lr
+  -----  --------  --------  -------  ----------
+      1    1.1851    1.2447     3.47    8.00e-06
+      2    1.1298    1.1684     3.22    9.99e-06
+      3    1.0748    1.1021     3.01    9.97e-06
+      4    1.0044    1.0452     2.84    9.92e-06
+      5    0.9631    0.9951     2.71    9.85e-06
+      6    0.9039    0.9533     2.59    9.77e-06
+      7    0.8676    0.9271     2.53    9.66e-06
+      8    0.8483    0.9112     2.49    9.53e-06
+      9    0.8178    0.8971     2.45    9.39e-06
+     10    0.8153    0.8859     2.43    9.23e-06
+     11    0.8041    0.8768     2.40    9.05e-06
+     12    0.7914    0.8687     2.38    8.85e-06
+     13    0.7781    0.8604     2.36    8.63e-06
+     14    0.7714    0.8537     2.35    8.41e-06
+     15    0.7687    0.8484     2.34    8.16e-06
+     16    0.7626    0.8429     2.32    7.91e-06
+     17    0.7494    0.8379     2.31    7.64e-06
+     18    0.7452    0.8339     2.30    7.36e-06
+     19    0.7460    0.8307     2.29    7.07e-06
+     20    0.7266    0.8273     2.29    6.77e-06
+     21    0.7221    0.8245     2.28    6.47e-06
+     22    0.7240    0.8222     2.28    6.16e-06
+     23    0.7214    0.8200     2.27    5.84e-06
+     24    0.7176    0.8171     2.26    5.52e-06
+     25    0.7116    0.8146     2.26    5.20e-06
+     26    0.7123    0.8126     2.25    4.88e-06
+     27    0.7051    0.8107     2.25    4.56e-06
+     28    0.6971    0.8088     2.25    4.24e-06
+     29    0.7002    0.8074     2.24    3.92e-06
+     30    0.6953    0.8063     2.24    3.61e-06
+     31    0.6879    0.8050     2.24    3.30e-06
+     32    0.6918    0.8039     2.23    3.00e-06
+     33    0.6907    0.8030     2.23    2.71e-06
+     34    0.6921    0.8018     2.23    2.43e-06
+     35    0.6917    0.8011     2.23    2.16e-06
+     36    0.6789    0.8006     2.23    1.90e-06
+     37    0.6821    0.8004     2.23    1.65e-06
+     38    0.6891    0.8002     2.23    1.42e-06
+     39    0.6865    0.7999     2.23    1.20e-06
+     40    0.6906    0.7996     2.22    1.00e-06
+     41    0.6841    0.7993     2.22    8.18e-07
+     42    0.6851    0.7991     2.22    6.50e-07
+     43    0.6892    0.7990     2.22    5.00e-07
+     44    0.6899    0.7989     2.22    3.69e-07
+     45    0.6792    0.7988     2.22    2.57e-07
+     46    0.6809    0.7987     2.22    1.65e-07
+     47    0.6885    0.7987     2.22    9.31e-08
+     48    0.6840    0.7987     2.22    4.15e-08
+     49    0.6854    0.7987     2.22    1.04e-08
+     50    0.6842    0.7987     2.22    0.00e+00 ←