Tool Retrieval on ToolBench Vague queries G3 tier
21.1NDCG@5CoHyDE (r = 3)
Evaluation Results
| Method | Links | ||
|---|---|---|---|
| CoHyDE (r = 3)Expansion Factor (r)=32026.05 | 21.1 | 26.2 | |
| text-embedding-3-largeBackbone=text-embedding-3-large2026.05 | 19.8 | 19.8 | |
| HyDE (vanilla LLM + trained BGE S1a)Backbone=BGE (trained S1a), Query Expansion Strategy=HyDE, Generator=Qwen3.5-4B2026.05 | 17.6 | 17.9 | |
| HyDE (vanilla LLM & BGE)Backbone=BGE (vanilla), Query Expansion Strategy=HyDE, Generator=Qwen3.5-4B2026.05 | 17.4 | 21.1 | |
| BGE (trained S1a)Backbone=BGE, Training Stage=S1a2026.05 | 14.9 | 18.7 | |
| BGE (vanilla)Backbone=BGE, Training Stage=vanilla2026.05 | 8.3 | 12.9 | |
| Query expansion (LLM + BGE)Backbone=BGE (vanilla), Query Expansion Strategy=Query-side paraphrasing2026.05 | 6.2 | 10.9 | |
| BM252026.05 | 3.4 | 3 |