TREC 2025 Proceedings
qwen_splade
Submission Details
- Organization
- UTokyo
- Track
- Retrieval-Augmented Generation
- Task
- Retrieval Only Task
- Date
- 2025-08-16
Run Description
- Is this a manual (human intervention) or automatic run?
- automatic
- Does this run leverage neural networks?
- yes
- Does this run leverage proprietary models in any step of the retrieval pipeline?
- yes
- Does this run leverage open-weight LLMs (> 5B parameters) in any step of the retrieval pipeline?
- no
- Does this run leverage smaller open-weight language models in any step of the retrieval pipeline?
- yes
- Was this run padded with results from a baseline run?
- no
- What would you categorize this run as?
- Generation-in-the-loop Pipeline
- Please provide a short description of this run
- Hybrid retrieval pipeline leveraging HyDE (Hypothetical Document Embeddings) with Qwen3-Embedding-0.6B for dense retrieval (query:HyDE 0.3:0.7 weighted combination) and SPLADE sparse retrieval. Results are fused using Reciprocal Rank Fusion (RRF, k=60) to combine complementary signals from dense and sparse methods. Final ranking performed by GPT-4.1-mini with sliding window reranking (window=10, stride=5, 3 passes) incorporating document title, URL, and segment content for enhanced contextual understanding.
- Please give this run a priority for inclusion in manual assessments.
- 3
Evaluation Files
Paper