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Posted to issues@lucene.apache.org by GitBox <gi...@apache.org> on 2022/05/02 16:26:43 UTC
[GitHub] [lucene] mayya-sharipova commented on pull request #862: LUCENE-9848 Sort HNSW graph neighbors for construction
mayya-sharipova commented on PR #862:
URL: https://github.com/apache/lucene/pull/862#issuecomment-1115093505
I've run benchmarks on 2 datasets:
baseline – main branch
candidate – this PR:
Indexing time was the same or slightly better.
Recall slightly increased: 1-3%
QPS slightly decreased
---
**glove-100-angular M:16 efConstruction:100**
| | baseline recall | baseline QPS | candidate recall | candidate QPS |
| ----------- | --------------: | -----------: | ---------------: | ------------: |
| n_cands=10 | 0.463 | 3742.506 | 0.476 | 3743.109 |
| n_cands=20 | 0.529 | 3191.042 | 0.541 | 2954.978 |
| n_cands=40 | 0.603 | 2576.537 | 0.617 | 2681.529 |
| n_cands=80 | 0.682 | 1877.982 | 0.696 | 1629.359 |
| n_cands=120 | 0.721 | 1492.808 | 0.737 | 1447.522 |
| n_cands=200 | 0.766 | 1099.154 | 0.784 | 1093.390 |
| n_cands=400 | 0.818 | 672.911 | 0.834 | 667.136 |
| n_cands=600 | 0.845 | 489.292 | 0.859 | 478.109 |
| n_cands=800 | 0.862 | 383.402 | 0.875 | 383.488 |
---
**sift-128-euclidean M:16 efConstruction:500**
| | baseline recall | baseline QPS | candidate recall | candidate QPS |
| ----------- | --------------: | -----------: | ---------------: | ------------: |
| n_cands=10 | 0.747 | 3891.531 | 0.753 | 3304.833 |
| n_cands=20 | 0.817 | 3359.364 | 0.819 | 2879.256 |
| n_cands=40 | 0.889 | 2590.605 | 0.887 | 2280.737 |
| n_cands=80 | 0.944 | 1798.558 | 0.941 | 1648.794 |
| n_cands=120 | 0.964 | 1383.721 | 0.963 | 1377.711 |
| n_cands=200 | 0.983 | 973.862 | 0.981 | 917.995 |
| n_cands=400 | 0.994 | 586.816 | 0.993 | 548.358 |
| n_cands=600 | 0.997 | 427.128 | 0.996 | 408.959 |
| n_cands=800 | 0.998 | 341.178 | 0.997 | 316.840 |
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