Hybrid Retrieval

Hybrid Retrieval

VaultMind uses a hybrid retrieval architecture.

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Semantic Search

Vector Database

ChromaDB

Embeddings

text-embedding-3-small

Configuration

retrieval_k = 3
similarity_threshold = 1.6

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Keyword Search

Algorithm

BM25Okapi

Purpose:

Capture exact keyword matches missed by embeddings.

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Reciprocal Rank Fusion

Results from both retrieval systems are combined using RRF.

Benefits:

• Better Recall
• Better Precision
• More Stable Retrieval
• Less Dependency On A Single Search Method