Table 1 Classification result (accuracy in percentage) of FV with different vocabulary sizes
| Â | Normal | Slight activation | Moderate activation | Drastic activation | mAP |
|---|---|---|---|---|---|
\(K=16\) | 88.00 ± 10.30% | \(60.20\pm 16.34\%\) | \(80.20\pm 12.85\%\) | \(90.80\pm 6.65\%\) | \(79.80\pm 4.86\%\) |
\(K=32\) | \(86.80\pm 12.68\%\) | \(58.60\pm 14.70\%\) | \(82.20\pm 11.65\%\) | \(92.20\pm 7.89\%\) | \(79.95\pm 5.65\%\) |
\(K=64\) | \(82.60\pm 12.08\%\) | 65.80 ± 13.10% | 84.80 ± 11.99% | 93.40 ± 8.71% | 81.65 ± 5.90% |
\(K=128\) | \(86.00\pm 11.60\%\) | \(65.40\pm 11.46\%\) | \(77.80\pm 12.00\%\) | 93.40 ± 6.58% | \(80.65\pm 5.45\%\) |
\(K=256\) | \(86.20\pm 9.66\%\) | \(62.80\pm 16.66\%\) | \(83.60\pm 11.02\%\) | \(89.79\pm 9.14\%\) | \(80.60\pm 5.38\%\) |