Papers with retrieval modules
Compress to Impress: Unleashing the Potential of Compressive Memory in Real-World Long-Term Conversations (2025.coling-main)
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| Challenge: | Existing retrieval-based methods for long-term conversations face challenges in memory database management and accurate memory retrieval, hindering their efficacy in dynamic, real-world interactions. |
| Approach: | They propose a framework that eschews traditional retrieval modules and memory databases and adopts a “One-for-All” approach to manage memory generation, compression, and response generation. |
| Outcome: | The proposed framework produces more nuanced and human-like experiences than retrieval-based methods. |
FunnelRAG: A Coarse-to-Fine Progressive Retrieval Paradigm for RAG (2025.findings-naacl)
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| Challenge: | Retrieval-Augmented Generation (RAG) is widely adopted in Large Language Models, but is flat and has limitations such as a significant burden on one retriever and constant granularity limits the ceiling of retrieval performance. |
| Approach: | They propose a progressive retrieval paradigm with coarse-to-fine granularity for RAG, termed FunnelRAG, so as to balance effectiveness and efficiency. |
| Outcome: | The proposed paradigm achieves comparable retrieval performance while the time overhead is reduced by nearly 40%. |
Merging Generated and Retrieved Knowledge for Open-Domain QA (2023.emnlp-main)
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| Challenge: | Open-domain question answering systems often have retrieval modules but retrieving passages from external knowledge sources is known to suffer from insufficient knowledge coverage. |
| Approach: | They propose a Compatibility-Oriented knowledge Merging framework to leverage both sources of information by matching LLM-generated passages with retrieved counterparts into compatible pairs. |
| Outcome: | The proposed framework outperforms baselines on three out of four tested open-domain QA benchmarks. |
RPDR: A Round-trip Prediction-Based Data Augmentation Framework for Long-Tail Question Answering (2025.emnlp-main)
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| Challenge: | Long-tail question answering presents significant challenges for large language models due to limited ability to acquire and accurately recall less common knowledge. |
| Approach: | They propose a data augmentation framework that selects high-quality easy-to-learn training data to enhance dense retrieval models. |
| Outcome: | The proposed framework improves on two long-tail retrieval benchmarks, PopQA and EntityQuestion, and shows that it outperforms existing retrievers on extremely long-tailed questions. |
QuDAR: Query-Wise Dual-Perspective Adaptive Retrieval (2026.acl-long)
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| Challenge: | Existing approaches to grounding large language models rely on static weights and a static retrieval component. |
| Approach: | They propose a dual-perspective adaptive retrieval framework that adapts along two perspectives: retriever type (sparse vs. dense) and query format (original v. expanded). |
| Outcome: | The proposed framework adapts along two perspectives: retriever type (sparse vs. dense) and query format (original v. expanded). |