opensearch-project/neural-search

[FEATURE] Semantic Search should be able to support Exact search

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#516 opened on Dec 7, 2023

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Featuresenhancementhelp wantedneural-search

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Description

Is your feature request related to a problem?

In the use cases of semantic search with filtering, its possible to operate on granular tenets. In these cases, Exact Search/Bruteforce would be more efficient to determine results with more accuracy(recall 1.0). Neural plugin should avoid building the graphs and just use plain vectors for Exact Search.

What solution would you like?

Support Exact Search in Neural clause and avoid creating graphs for these use cases.

Contributor guide

Research direction
Investigate how to implement exact search (brute force) in the neural search plugin without building HNSW graphs. Look at OpenSearch's KNN score script and modify the neural clause to support exact search.
Tech stack
java
Domain
backenddatabase
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Java
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60