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Retrieval-Augmented Generation (RAG) enhances the response capabilities of language models by integrating external knowledge sources. However, document chunking as an important part of RAG system often lacks effective evaluation tools. This…

Computation and Language · Computer Science 2025-10-10 Wensheng Lu , Keyu Chen , Ruizhi Qiao , Xing Sun

The effectiveness of Retrieval-Augmented Generation (RAG) is highly dependent on how documents are chunked, that is, segmented into smaller units for indexing and retrieval. Yet, commonly used "one-size-fits-all" approaches often fail to…

Computation and Language · Computer Science 2026-03-27 Paulo Roberto de Moura Júnior , Jean Lelong , Annabelle Blangero

Retrieval-Augmented Generation (RAG) systems commonly use chunking strategies for retrieval, which enhance large language models (LLMs) by enabling them to access external knowledge, ensuring that the retrieved information is up-to-date and…

Computation and Language · Computer Science 2025-07-15 Hai Toan Nguyen , Tien Dat Nguyen , Viet Ha Nguyen

While Retrieval-Augmented Generation (RAG) has emerged as a promising paradigm for boosting large language models (LLMs) in knowledge-intensive tasks, it often overlooks the crucial aspect of text chunking within its workflow. This paper…

Computation and Language · Computer Science 2025-05-22 Jihao Zhao , Zhiyuan Ji , Yuchen Feng , Pengnian Qi , Simin Niu , Bo Tang , Feiyu Xiong , Zhiyu Li

Retrieval-Augmented Generation (RAG) systems using large language models (LLMs) often generate inaccurate responses due to the retrieval of irrelevant or loosely related information. Existing methods, which operate at the document level,…

Computation and Language · Computer Science 2025-04-24 Ishneet Sukhvinder Singh , Ritvik Aggarwal , Ibrahim Allahverdiyev , Muhammad Taha , Aslihan Akalin , Kevin Zhu , Sean O'Brien

Retrieval-Augmented Generation (RAG), while serving as a viable complement to large language models (LLMs), often overlooks the crucial aspect of text chunking within its pipeline. This paper initially introduces a dual-metric evaluation…

Computation and Language · Computer Science 2025-05-27 Jihao Zhao , Zhiyuan Ji , Zhaoxin Fan , Hanyu Wang , Simin Niu , Bo Tang , Feiyu Xiong , Zhiyu Li

Retrieval-Augmented Generation (RAG) systems depend critically on document chunking quality for retrieving relevant context. Fixed chunking segments documents into uniform units irrespective of semantics or user intent, producing a…

Computation and Language · Computer Science 2026-05-27 Mudit Rastogi

Retrieval-Augmented Generation (RAG) has become a widely adopted paradigm for enhancing the reliability of large language models (LLMs). However, RAG systems are sensitive to retrieval strategies that rely on text chunking to construct…

Information Retrieval · Computer Science 2026-03-31 Sun Xu , Tongkai Xu , Baiheng Xie , Li Huang , Qiang Gao , Kunpeng Zhang

Retrieval-augmented generation (RAG) has strong potential for producing accurate and factual outputs by combining language models (LMs) with evidence retrieved from large text corpora. However, current pipelines are limited by static…

Information Retrieval · Computer Science 2026-02-27 Xuechen Zhang , Koustava Goswami , Samet Oymak , Jiasi Chen , Nedim Lipka

Traditional query expansion techniques for addressing vocabulary mismatch problems in information retrieval are context-sensitive and may lead to performance degradation. As an alternative, document expansion research has gained attention,…

Information Retrieval · Computer Science 2025-09-22 Jisu Kim , Jinhee Park , Changhyun Jeon , Jungwoo Choi , Keonwoo Kim , Minji Hong , Sehyun Kim

Chunking strategies significantly impact the effectiveness of Retrieval-Augmented Generation (RAG) systems. Existing methods operate within fixed-granularity paradigms that rely on static boundary identification, limiting their adaptability…

Computation and Language · Computer Science 2026-02-03 Wenxuan Zhang , Yuan-Hao Jiang , Yang Cao , Yonghe Wu

Chunking information is a key step in Retrieval Augmented Generation (RAG). Current research primarily centers on paragraph-level chunking. This approach treats all texts as equal and neglects the information contained in the structure of…

Computation and Language · Computer Science 2024-03-19 Antonio Jimeno Yepes , Yao You , Jan Milczek , Sebastian Laverde , Renyu Li

Retrieval-Augmented Generation (RAG) has proven effective in open-domain question answering. However, the chunking process, which is essential to this pipeline, often receives insufficient attention relative to retrieval and synthesis…

Computation and Language · Computer Science 2025-01-20 Zuhong Liu , Charles-Elie Simon , Fabien Caspani

Current document chunking methods for Retrieval-Augmented Generation (RAG) typically linearize text. This forced linearization strips away intrinsic topological hierarchies, creating ``semantic fragmentation'' that degrades downstream…

Computation and Language · Computer Science 2026-03-20 Xiaoyu Liu

We study how document chunking choices impact the reliability of Retrieval-Augmented Generation (RAG) systems in industry. While practice often relies on heuristics, our end-to-end evaluation on Natural Questions systematically varies…

Computation and Language · Computer Science 2026-01-21 Sofia Bennani , Charles Moslonka

Retrieval-augmented generation (RAG) effectively addresses issues of static knowledge and hallucination in large language models. Existing studies mostly focus on question scenarios with clear user intents and concise answers. However, it…

Computation and Language · Computer Science 2025-02-18 Shuting Wang , Xin Yu , Mang Wang , Weipeng Chen , Yutao Zhu , Zhicheng Dou

Retrieval-Augmented Generation (RAG) encounters efficiency challenges when scaling to massive knowledge bases while preserving contextual relevance. We propose Hash-RAG, a framework that integrates deep hashing techniques with systematic…

Information Retrieval · Computer Science 2025-06-04 Jinyu Guo , Xunlei Chen , Qiyang Xia , Zhaokun Wang , Jie Ou , Libo Qin , Shunyu Yao , Wenhong Tian

Retrieval-Augmented Generation (RAG) systems are increasingly vital for navigating the ever-expanding body of scientific literature, particularly in high-stakes domains such as chemistry. Despite the promise of RAG, foundational design…

Information Retrieval · Computer Science 2025-06-24 Mahmoud Amiri , Thomas Bocklitz

Retrieval-Augmented Generation (RAG) mitigates the issue of hallucination in Large Language Models (LLMs) by integrating information retrieval techniques. However, in the tourism domain, since the query is usually brief and the content in…

Computation and Language · Computer Science 2024-11-14 Qikai Wei , Mingzhi Yang , Chunlong Han , Jingfu Wei , Minghao Zhang , Feifei Shi , Huansheng Ning

Document chunking is a crucial component of Retrieval-Augmented Generation (RAG), as it directly affects the retrieval of relevant and precise context. Conventional fixed-length and recursive splitters often produce arbitrary, incoherent…

Information Retrieval · Computer Science 2025-12-02 Aparajitha Allamraju , Maitreya Prafulla Chitale , Hiranmai Sri Adibhatla , Rahul Mishra , Manish Shrivastava
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