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Large Language Model agents often retrieve context from knowledge bases that lack structural consistency with the agent's current reasoning state, leading to incoherent reasoning chains. We introduce Path-Constrained Retrieval (PCR), a…

Computation and Language · Computer Science 2025-11-25 Joseph Oladokun

Retrieval-Augmented Generation (RAG) based on Large Language Models (LLMs) is a powerful solution to understand and query the industry's closed-source documents. However, basic RAG often struggles with complex QA tasks in legal and…

Information Retrieval · Computer Science 2025-09-08 Huifeng Lin , Gang Su , Jintao Liang , You Wu , Rui Zhao , Ziyue Li

Large Language Models (LLMs) have shown remarkable performance in completing various tasks. However, solving complex problems often requires the coordination of multiple agents, raising a fundamental question: how to effectively select and…

Computation and Language · Computer Science 2026-04-02 Eric Hanchen Jiang , Levina Li , Rui Sun , Xiao Liang , Yubei Li , Yuchen Wu , Haozheng Luo , Hengli Li , Zhi Zhang , Zhaolu Kang , Kai-Wei Chang , Ying Nian Wu

Retrieval-Augmented Generation (RAG) helps large language models (LLMs) answer knowledge-intensive and time-sensitive questions by conditioning generation on external evidence. However, most RAG systems still retrieve unstructured chunks…

Computation and Language · Computer Science 2026-03-11 Jiashuo Sun , Yixuan Xie , Jimeng Shi , Shaowen Wang , Jiawei Han

Multi-document Multi-entity Question Answering inherently demands models to track implicit logic between multiple entities across scattered documents. However, existing Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG)…

Artificial Intelligence · Computer Science 2026-03-13 Teng Lin , Yizhang Zhu , Zhengxuan Zhang , Yuyu Luo , Nan Tang

Retrieval-augmented generation (RAG) enhances large language models (LLMs) by integrating external knowledge sources to address their limitations in accessing up-to-date or specialized information. A natural strategy to increase the…

Computation and Language · Computer Science 2025-11-10 Song Wang , Zihan Chen , Peng Wang , Zhepei Wei , Zhen Tan , Yu Meng , Cong Shen , Jundong Li

LLMs have advanced text-to-SQL generation, yet monolithic architectures struggle with complex reasoning and schema diversity. We propose AGENTIQL, an agent-inspired multi-expert framework that combines a reasoning agent for question…

Computation and Language · Computer Science 2025-10-15 Omid Reza Heidari , Siobhan Reid , Yassine Yaakoubi

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

Text semantic segmentation involves partitioning a document into multiple paragraphs with continuous semantics based on the subject matter, contextual information, and document structure. Traditional approaches have typically relied on…

Computation and Language · Computer Science 2025-04-03 Tongke Ni , Yang Fan , Junru Zhou , Xiangping Wu , Qingcai Chen

Graph Retrieval-Augmented Generation (Graph-RAG) enhances multihop question answering by organizing corpora into knowledge graphs and routing evidence through relational structure. However, practical deployments face two persistent…

Information Retrieval · Computer Science 2026-01-30 Jiate Liu , Zebin Chen , Shaobo Qiao , Mingchen Ju , Danting Zhang , Bocheng Han , Shuyue Yu , Xin Shu , Jingling Wu , Dong Wen , Xin Cao , Guanfeng Liu , Zhengyi Yang

Retrieval-Augmented Generation (RAG) has emerged as a powerful paradigm for enhancing the performance of large language models (LLMs) by integrating external knowledge into the generation process. A key component of RAG pipelines is the…

Computation and Language · Computer Science 2025-04-07 Yuwei An , Yihua Cheng , Seo Jin Park , Junchen Jiang

\Ac{RAG} has emerged as a crucial technique for enhancing large models with real-time and domain-specific knowledge. While numerous improvements and open-source tools have been proposed to refine the \ac{RAG} framework for accuracy,…

Information Retrieval · Computer Science 2025-02-20 Yixing Fan , Qiang Yan , Wenshan Wang , Jiafeng Guo , Ruqing Zhang , Xueqi Cheng

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by incorporating external, domain-specific data into the generative process. While LLMs are highly capable, they often rely on static, pre-trained datasets, limiting…

Artificial Intelligence · Computer Science 2024-12-10 Aniruddha Salve , Saba Attar , Mahesh Deshmukh , Sayali Shivpuje , Arnab Mitra Utsab

The 3rd Generation Partnership Project (3GPP) produces complex technical specifications essential to global telecommunications, yet their hierarchical structure, dense formatting, and multi-modal content make them difficult to process.…

Machine Learning · Computer Science 2026-01-27 Rahul Ghosh , Chun-Hao Liu , Gaurav Rele , Vidya Sagar Ravipati , Hazar Aouad

Retrieval-augmented generation (RAG) is a key means to effectively enhance large language models (LLMs) in many knowledge-based tasks. However, existing RAG methods struggle with knowledge-intensive reasoning tasks, because useful…

Computation and Language · Computer Science 2024-10-28 Zhuoqun Li , Xuanang Chen , Haiyang Yu , Hongyu Lin , Yaojie Lu , Qiaoyu Tang , Fei Huang , Xianpei Han , Le Sun , Yongbin Li

We present an initial investigation into Agentic Retrieval-Augmented Generation (RAG) for Ukrainian, conducted within the UNLP 2026 Shared Task on Multi-Domain Document Understanding. Our system combines two-stage retrieval (BGE-M3 with BGE…

Artificial Intelligence · Computer Science 2026-04-17 Marta Sumyk , Oleksandr Kosovan

Large language model (LLM) contexts are typically constructed using retrieval-augmented generation (RAG), which involves ranking and selecting the top-k passages. The approach causes fragmentation in information graphs in document…

Artificial Intelligence · Computer Science 2026-01-16 Amir Khurshid , Abhishek Sehgal

Retrieval-Augmented Generation (RAG) systems critically depend on retrieval quality, yet no systematic comparison of modern retrieval methods exists for heterogeneous documents containing both text and tabular data. We benchmark ten…

Information Retrieval · Computer Science 2026-04-03 Meftun Akarsu , Recep Kaan Karaman , Christopher Mierbach

Standard Retrieval Augmented Generation (RAG) is poorly matched to agent memory. Unlike large heterogeneous corpora, agent memory forms a bounded and coherent interaction stream in which many spans are highly correlated or near duplicates.…

Computation and Language · Computer Science 2026-05-13 Zhanghao Hu , Qinglin Zhu , Runcong Zhao , Di Liang , Hanqi Yan , Yulan He , Lin Gui

Graph-based Retrieval-Augmented Generation (GraphRAG) has become the important paradigm for enhancing Large Language Models (LLMs) with external knowledge. However, existing approaches are constrained by their reliance on high-quality…

Computation and Language · Computer Science 2026-01-07 Xiaojun Wu , Cehao Yang , Xueyuan Lin , Chengjin Xu , Xuhui Jiang , Yuanliang Sun , Hui Xiong , Jia Li , Jian Guo
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