Challenge: Existing document question answering methods reduce inference costs and input tokens.
Approach: They propose a retrieval-augmented generation method that automatically extracts useful entities and generates summaries from documents.
Outcome: The proposed method surpasses baseline retrieval-augmented generation (RAG) and long-context question answering (LC) methods achieve higher accuracy by processing entire documents, but at the cost of increased computational Corresponding authors.

Similar Papers

Searching for Best Practices in Retrieval-Augmented Generation (2024.emnlp-main)

Copied to clipboard

Challenge: Retrieval-augmented generation (RAG) techniques have proven to be effective in integrating up-to-date information, mitigating hallucinations, and enhancing response quality, especially in specialized domains.
Approach: They propose several strategies for deploying RAG that balance performance and efficiency.
Outcome: The proposed approaches can significantly enhance question-answering capabilities and accelerate the generation of multimodal content using a “retrieval as generation” strategy.
Enhancing Retrieval-Augmented Generation: A Study of Best Practices (2025.coling-main)

Copied to clipboard

Challenge: Retrieval-augmented generation systems have shown remarkable advancements by integrating retrieval mechanisms into language models, enhancing their ability to produce more accurate and contextually relevant responses.
Approach: They propose to integrate query expansion, various novel retrieval strategies, and a Contrastive In-Context Learning RAG to improve response quality.
Outcome: The proposed RAGs incorporate query expansion, various novel retrieval strategies, and a novel Contrastive In-Context Learning RAG.
Controlled Retrieval-augmented Context Evaluation for Long-form RAG (2025.findings-emnlp)

Copied to clipboard

Challenge: Retrieval-augmented generation (RAG) enhances large language models by incorporating context retrieved from external knowledge sources.
Approach: They propose a Controlled Retrieval-aUgmented conteXt evaluation framework to directly assess retrieval-augmented contexts.
Outcome: The proposed framework uses human-written summaries to control the information scope of knowledge.
Multi-Level Information Retrieval Augmented Generation for Knowledge-based Visual Question Answering (2024.emnlp-main)

Copied to clipboard

Challenge: Knowledge-Aware Visual Question Answering about Entity tasks require two separate steps to generate accurate answers.
Approach: They propose a multi-level information RAG approach that enhances answer generation through entity retrieval and query expansion.
Outcome: The proposed approach improves answer generation through entity retrieval and query expansion.
Question Decomposition for Retrieval-Augmented Generation (2025.acl-srw)

Copied to clipboard

Challenge: Retrieval-augmented generation (RAG) is effective for question answering tasks . multi-hop questions, such as "Which company among NVIDIA, Apple, and Google made the biggest profit in 2023?" challenge RAG because relevant facts are often distributed across multiple documents .
Approach: They propose a pipeline that incorporates question decomposition to ground large language models in verifiable external sources.
Outcome: The proposed approach improves retrieval and answer accuracy over standard RAG . multi-hop questions often require multiple documents to support the model .
RAG+: Enhancing Retrieval-Augmented Generation with Application-Aware Reasoning (2025.emnlp-main)

Copied to clipboard

Challenge: Existing RAG paradigms often overlook the cognitive step of applying knowledge, leaving a gap between retrieved facts and task-specific reasoning.
Approach: They introduce a module extension that integrates application-aware reasoning into the RAG pipeline.
Outcome: Experiments show that RAG+ outperforms standard RAG variants and achieves gains of 3–5% in complex scenarios.
Towards Adaptive Memory-Based Optimization for Enhanced Retrieval-Augmented Generation (2025.findings-acl)

Copied to clipboard

Challenge: Existing methods for enhancing response accuracy and accuracy struggle with open-domain QA tasks because they perform independent retrieval operations without maintaining a summarizing memory or using adaptive retrieval strategies.
Approach: They propose a method that integrates non-parametric knowledge from external knowledge bases into models to enhance response accuracy while mitigating factual errors and hallucinations.
Outcome: The proposed method improves on open-domain QA datasets and reduces noise and hallucinations due to redundant information and insufficient information integration.
HASH-RAG: Bridging Deep Hashing with Retriever for Efficient, Fine Retrieval and Augmented Generation (2025.findings-acl)

Copied to clipboard

Challenge: Experimental evaluations on NQ, TriviaQA, and HotpotQA datasets demonstrate that our approach achieves a 90% reduction in retrieval time compared to conventional methods while maintaining considerate recall performance.
Approach: They propose a framework that integrates deep hashing techniques with systematic optimizations to address these limitations.
Outcome: The proposed framework outperforms retrieval/non-retrieval baselines by 1.4-4.3% in EM scores on NQ, TriviaQA, and HotpotQA datasets.
From Ambiguity to Accuracy: The Transformative Effect of Coreference Resolution on Retrieval-Augmented Generation systems (2025.acl-srw)

Copied to clipboard

Challenge: Retrieval-augmented generation (RAG) is a key framework in natural language processing . however, the effectiveness of RAG is often hindered by coreferential complexity in retrieved documents .
Approach: They investigate how entity coreference affects document retrieval and generative performance in RAG-based systems.
Outcome: The proposed model improves QA performance and retrieval relevance and contextual understanding.
TableRAG: A Retrieval Augmented Generation Framework for Heterogeneous Document Reasoning (2025.emnlp-main)

Copied to clipboard

Challenge: Existing approaches to retrievalaugmented generation (RAG) are limited when applied to heterogeneous documents . flattening tables and chunking strategies disrupt tabular structure, leads to information loss, and undermines reasoning capabilities of LLMs in multi-hop, global queries.
Approach: They propose a SQL-based framework that unifies textual understanding and complex manipulations over tabular data.
Outcome: The proposed framework outperforms baselines on public datasets and HeteQA on heterogeneous document question answering.

What is GenGO?

GenGO is an NLP powered publication search system. It currenctly indexes 30k+ papers from ACL Anthology, and implements multi-aspect summarization, semantic search, and more!

Information

About
Limitations