NVIDIA / NVIDIA/cuvs

[FEA] CAGRA to support bitmap filter

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feature request
Dominant language
Cuda
Stars
854
Forks
236
Avg merge
3d 3h
Merged PRs (30d)
62

Description

CAGRA supports batching queries today, but unlike the pre-filtered brute-force search API, it does not allow specifying a bitmap filter, which is essentially a per-query bitset filter.

At the very least, we should be able to support a different bitset filter attached to each query in a batch.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the CAGRA batched-query API and the pre-filtered brute-force search API referenced in the issue. Trace how query filters are represented and identify the expected behavior for a distinct bitmap filter on each batched query; done means batched CAGRA searches accept and apply those per-query filters.

Written by the indexing model from the issue text.

Assessment

Domain
search
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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