README.md

metadata

title: QMD Web Demo
emoji: 🔍
colorFrom: blue
colorTo: green
sdk: static
pinned: false
license: mit

QMD Web Demo

In-browser hybrid search pipeline using WebGPU + Transformers.js v4.

Demonstrates the full QMD search pipeline running entirely in your browser:

1. Query Expansion — Qwen3 1.7B generates HyDE, semantic, and keyword variants
2. Parallel Search — BM25 keyword search + vector similarity search
3. Reciprocal Rank Fusion — Merges results from multiple search backends
4. LLM Reranking — Qwen3 Reranker 0.6B scores document relevance
5. Score Blending — Position-aware combination of RRF and reranker scores

Requirements

• Chrome 113+ or Edge 113+ (WebGPU required)
• ~2.5GB model download on first visit (cached for subsequent visits)

Models

• embeddinggemma-300M — Embeddings
• Qwen3-Reranker-0.6B — Reranking
• qmd-query-expansion-1.7B — Query expansion

Based on QMD by Tobi Lütke.