Research Article
A Fast Logdet Divergence Based Metric Learning Algorithm for Large Data Sets Classification
Table 4
Performance comparison with the state-of-the-art online metric learning methods on the large data sets.
| Data set | LEGO | Proposed algorithm | Precision | Time (s) | Compressed dimension | Precision | Time (s) |
| Letter-Recognition | 0.9348 | 1.2316 | 10 | 0.9351 | 6.3149 | Spambase | 0.7829 | 0.7659 | 20 | 0.9033 | 0.9543 | Isolet | 0.9156 | 166.9784 | 20 | 0.9167 | 3.2437 | Semeion | 0.9190 | 2.4171 | 20 | 0.9210 | 0.1829 | Mfeat | 0.9375 | 43.9377 | 20 | 0.9496 | 0.4436 |
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