Improving Retrieval Augmented Open-Domain Question-Answering with Vectorized Contexts
On the map: Retrieval-augmented generation → RAG robustness and adaptive retrieval
Abstract (arXiv)
In the era of large language models, applying techniques such as Retrieval Augmented Generation can better address Open-Domain Question-Answering problems. Due to constraints including model sizes and computing resources, the length of context is often limited, and it becomes challenging to empower the model to cover overlong contexts while answering questions from open domains. This paper proposes a general and convenient method to covering longer contexts in Open-Domain Question-Answering tasks. It leverages a small encoder language model that effectively encodes contexts, and the encoding applies cross-attention with origin inputs. With our method, the origin language models can cover several times longer contexts while keeping the computing requirements close to the baseline. Our experiments demonstrate that after fine-tuning, there is improved performance across two held-in datasets, four held-out datasets, and also in two In Context Learning settings.
Key facts. Cited by 3 papers in the map (data through 7 Oct 2026). Placed in RAG robustness and adaptive retrieval, one of 15 directions in Retrieval-augmented generation. Builds on 28 of its 46 references that are in the map. First posted on arXiv 2 Apr 2024.
Builds on
28 of 46 references.
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16 more
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- 2024RE-RAG: Improving Open-Domain QA Performance and Interpretability with Relevance Estimator in Retrieval-Augmented Generation
- 2025Provence: efficient and robust context pruning for retrieval-augmented generation
- 2022Decoupled Context Processing for Context Augmented Language Modeling
- 2024Retrieval Augmented Generation for Domain-specific Question Answering
- 2024Enhancing Robustness of Retrieval-Augmented Language Models with In-Context Learning
- 2023Making Retrieval-Augmented Language Models Robust to Irrelevant Context