Tool Retrieval on ToolBench Vague queries (G2 tier)
38.7NDCG@5CoHyDE (r = 3)
Evaluation Results
| Method | Links | ||
|---|---|---|---|
| CoHyDE (r = 3)Expansion Factor (r)=32026.05 | 38.7 | 41.5 | |
| BGE (trained S1a)Backbone=BGE, Training Stage=S1a2026.05 | 30.7 | 33.6 | |
| HyDE (vanilla LLM + trained BGE S1a)Backbone=BGE (trained S1a), Query Expansion Strategy=HyDE, Generator=Qwen3.5-4B2026.05 | 29.3 | 31.8 | |
| text-embedding-3-largeBackbone=text-embedding-3-large2026.05 | 18.1 | 19.8 | |
| HyDE (vanilla LLM & BGE)Backbone=BGE (vanilla), Query Expansion Strategy=HyDE, Generator=Qwen3.5-4B2026.05 | 17.7 | 19.9 | |
| BGE (vanilla)Backbone=BGE, Training Stage=vanilla2026.05 | 15.8 | 16.7 | |
| Query expansion (LLM + BGE)Backbone=BGE (vanilla), Query Expansion Strategy=Query-side paraphrasing2026.05 | 11.3 | 12.5 | |
| BM252026.05 | 10.3 | 11.6 |