Add zeelin-scann benchmark algorithm#628
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Summary
This PR adds
zeelin-scann, a ScaNN-based configuration for angular nearest-neighbor search.The implementation normalizes angular vectors and uses ScaNN dot-product search with tuned partitioning, asymmetric
hashing, and reordering parameters.
Validation
Tested with the ann-benchmarks Docker workflow:
python3 install.py --algorithm zeelin-scann python3 run.py --dataset glove-100-angular --algorithm zeelin-scann --runs 5 --force python3 plot.py --dataset glove-100-angular --output zeelin_scann_result.png Representative local Docker result on glove-100-angular: ┌────────┬──────┐ │ recall │ QPS │ ├────────┼──────┤ │ 0.949 │ 2714 │ │ 0.950 │ 2681 │ │ 0.951 │ 2643 │ │ 0.991 │ 1059 │ └────────┴──────┘