Table 3 ROC-AUC scores comparison for ti\(k\)-NN. ROC-AUC scores of ti\(k\)-NN index very closely matches the scores of corresponding stand-alone implementation of its telescope-index.
ROC-AUC scores comparison for ti\(k\)-NN | ||||||
|---|---|---|---|---|---|---|
index/telescope index | census | covtype | poker | MNIST | swarm | gisette |
\(ball\)-tree | 0.89 | 0.99 | 0.82 | 0.99 | 0.95 | 0.99 |
(B+ + \(ball\)-tree) | 0.87 | 0.90 | 0.79 | 0.97 | 0.94 | 0.98 |
MRPT | 0.91 | 0.99 | 0.83 | 0.98 | 0.87 | 0.99 |
(B+ + MRPT) | 0.87 | 0.90 | 0.80 | 0.97 | 0.86 | 0.97 |
flann-kdtree | 0.87 | 0.97 | 0.71 | 0.91 | 0.77 | 0.64 |
(B+ + flann-kdtree) | 0.85 | 0.89 | 0.77 | 0.93 | 0.81 | 0.66 |
flann-kmeans | 0.87 | 0.97 | 0.75 | 0.90 | 0.77 | 0.72 |
(B++ flann-kmeans) | 0.86 | 0.86 | 0.71 | 0.96 | 0.95 | 0.89 |
nndescent | 0.84 | 0.97 | 0.83 | 0.98 | 0.94 | 0.99 |
(B+ + nndescent) | 0.86 | 0.87 | 0.78 | 0.97 | 0.92 | 0.98 |
ngt | 0.89 | 0.99 | 0.82 | 0.98 | 0.94 | 0.99 |
(B+ + ngt) | 0.87 | 0.90 | 0.79 | 0.97 | 0.94 | 0.98 |
faiss | 0.84 | 0.98 | 0.68 | 0.98 | 0.95 | 0.99 |
(B+ + faiss) | 0.84 | 0.90 | 0.70 | 0.98 | 0.92 | 0.98 |
qalsh | 0.85 | 0.99 | 0.71 | 0.98 | 0.95 | 0.99 |
(B+ + qalsh) | 0.85 | 0.91 | 0.65 | 0.97 | 0.91 | 0.98 |
hnsw | 0.84 | 0.98 | 0.68 | 0.98 | 0.95 | 0.99 |
(B+ + hnsw) | 0.85 | 0.96 | 0.60 | 0.97 | 0.93 | 0.98 |