k
|
Test PPL
|
NG50
|
---|
15
|
240.57
|
101,440
|
17
|
240.53
|
133,690
|
19
|
240.59
|
181,898
|
21
|
240.62
|
166,229
|
23
|
240.65
|
92,537
|
25
|
240.67
|
92,859
|
27
|
240.69
|
74,776
|
31
|
240.70
|
58,332
|
37
|
240.64
|
32,160
|
- Simulated annealing finds \(k=17\) as the best k value, which is also evident from the fact that it generated the minimum test perplexity. This value is quite close to \(k=19\) that generates the highest NG50 on assembly. Both of these k-values are highlighted in the Table.