High-performance BM25 implementation in TypeScript

Configurable BM25 Text Search Engine with simple semantic search support

A simple, easy to use implementation of the Okapi BM25 algorithm.

Computes BM25 Vectorization of Text.

Unified PostGraphile v5 search plugin — abstracts tsvector, BM25, pg_trgm, and pgvector behind a single adapter-based architecture with composite searchScore

Query Markup Documents - On-device hybrid search for markdown files with BM25, vector search, and LLM reranking

Shared knowledge core - parser, search (BM25), graph builder for CrewX

Kura — retrieval engine: BM25 keyword search (+ hybrid fusion), portable and zero-dependency. Pairs with @kurajs/core's vector search.

TypeScript port of tcvdb_text — BM25 sparse vector encoder for Tencent Cloud VectorDB

Bayesian probability transforms for BM25 retrieval scores

BM25 search, reranker, and hybrid fusion for hybrid RAG systems

Chroma BM25 sparse embedding function implemented in TypeScript

A lightweight, file-backed vector database for Node.js and browsers with Pinecone-compatible filtering and hybrid BM25 search.

BM25 full-text search engine for CrewX documents and code

Convert Korean historical source XML (국사편찬위원회 한국사DB) into a searchable SQLite BM25 corpus — hanja-primary full-text search, structured place/person index, co-occurrence clustering, and an optional LLM literal-translation secondary index.

Native perf module for obsidian-tc — vector ops, BM25, sqlite-vec, V2 clustering hooks

TypeScript SDK for Ratel — context engineering platform for AI agents. BM25 tool retrieval, MCP ingestion, framework-neutral capability tools.

Serverless hybrid search: BM25 keyword index on DynamoDB + Reciprocal Rank Fusion. Zero infrastructure cost at rest.

Hybrid BM25 + vector search for Obsidian vaults with frontmatter awareness

DevFlow 知识引擎 — 从技术文档站同步内容，BM25 搜索，支持 SPA 页面和静态 HTML。