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Human smuggling networks are increasingly adaptive and difficult to analyze. Legal case documents offer critical insights but are often unstructured, lexically dense, and filled with ambiguous or shifting references, which pose significant…

Computation and Language · Computer Science 2025-11-11 Dipak Meher , Carlotta Domeniconi

Chain-of-thought (CoT) reasoning boosts large language models' (LLMs) performance on complex tasks but faces two key limitations: a lack of reliability when solely relying on LLM-generated reasoning chains and lower reasoning performance…

Computation and Language · Computer Science 2025-09-11 Feiyang Li , Peng Fang , Zhan Shi , Arijit Khan , Fang Wang , Weihao Wang , Xin Zhang , Yongjian Cui

Retrieval-Augmented Generation (RAG) has emerged as a dominant paradigm for mitigating hallucinations in Large Language Models (LLMs) by incorporating external knowledge. Nevertheless, effectively integrating and interpreting key evidence…

Computation and Language · Computer Science 2026-01-26 Zhenghao Liu , Mingyan Wu , Xinze Li , Yukun Yan , Shuo Wang , Cheng Yang , Minghe Yu , Zheni Zeng , Maosong Sun

Retrieval-Augmented Generation (RAG) models are designed to incorporate external knowledge, reducing hallucinations caused by insufficient parametric (internal) knowledge. However, even with accurate and relevant retrieved content, RAG…

Computation and Language · Computer Science 2025-01-22 Zhongxiang Sun , Xiaoxue Zang , Kai Zheng , Yang Song , Jun Xu , Xiao Zhang , Weijie Yu , Yang Song , Han Li

Retrieval-Augmented Generation (RAG) has been proposed to mitigate hallucinations in large language models (LLMs), where generated outputs may be factually incorrect. However, existing RAG approaches predominantly rely on vector similarity…

Information Retrieval · Computer Science 2026-04-28 Miao Xie , Xiao Zhang , Yi Li , Chunli Lv

Retrieval Augmented Generation (RAG) has made significant strides in overcoming key limitations of large language models, such as hallucination, lack of contextual grounding, and issues with transparency. However, traditional RAG systems…

Artificial Intelligence · Computer Science 2026-02-24 Yash Saxena , Manas Gaur

In recent years, large language models (LLMs) have revolutionized the field of natural language processing. However, they often suffer from knowledge gaps and hallucinations. Graph retrieval-augmented generation (GraphRAG) enhances LLM…

Artificial Intelligence · Computer Science 2025-03-19 Kai Guo , Harry Shomer , Shenglai Zeng , Haoyu Han , Yu Wang , Jiliang Tang

Large language models (LLMs) have shown strong potential across a variety of tasks, but their application in the telecom field remains challenging due to domain complexity, evolving standards, and specialized terminology. Therefore,…

Artificial Intelligence · Computer Science 2026-02-20 Dun Yuan , Hao Zhou , Xue Liu , Hao Chen , Yan Xin , Jianzhong , Zhang

Retrieval-augmented generation (RAG) empowers large language models to access external and private corpus, enabling factually consistent responses in specific domains. By exploiting the inherent structure of the corpus, graph-based RAG…

Artificial Intelligence · Computer Science 2025-04-17 Tianyang Xu , Haojie Zheng , Chengze Li , Haoxiang Chen , Yixin Liu , Ruoxi Chen , Lichao Sun

Retrieval-Augmented Generation (RAG) has become a widely adopted approach to enhance Large Language Models (LLMs) by incorporating external knowledge and reducing hallucinations. However, noisy or irrelevant documents are often introduced…

Computation and Language · Computer Science 2026-01-07 Jingyu Liu , Jiaen Lin , Yong Liu

Retrieval-augmented Generation (RAG) is a prevalent approach for domain-specific LLMs, yet it is often plagued by "Retrieval Hallucinations"--a phenomenon where fine-tuned models fail to recognize and act upon poor-quality retrieved…

Artificial Intelligence · Computer Science 2026-01-21 Letian Zhang , Guanghao Meng , Xudong Ren , Yiming Wang , Shu-Tao Xia

Hallucination, a persistent challenge plaguing language models, undermines their efficacy and trustworthiness in various natural language processing endeavors by generating responses that deviate from factual accuracy or coherence. This…

Computation and Language · Computer Science 2024-12-30 Ratnesh Kumar Joshi , Sagnik Sengupta , Asif Ekbal

Given a graph with textual attributes, we enable users to `chat with their graph': that is, to ask questions about the graph using a conversational interface. In response to a user's questions, our method provides textual replies and…

Machine Learning · Computer Science 2024-05-28 Xiaoxin He , Yijun Tian , Yifei Sun , Nitesh V. Chawla , Thomas Laurent , Yann LeCun , Xavier Bresson , Bryan Hooi

Retrieval-Augmented Generation (RAG) is widely used to inject external non-parametric knowledge into large language models (LLMs). Recent works suggest that Knowledge Graphs (KGs) contain valuable external knowledge for LLMs. Retrieving…

Computation and Language · Computer Science 2024-10-10 Wenyu Huang , Guancheng Zhou , Hongru Wang , Pavlos Vougiouklis , Mirella Lapata , Jeff Z. Pan

Retrieval Augmented Generation (RAG) provides the necessary informational grounding to LLMs in the form of chunks retrieved from a vector database or through web search. RAG could also use knowledge graph triples as a means of providing…

Information Retrieval · Computer Science 2026-03-31 Shalin Shah , Srikanth Ryali , Ramasubbu Venkatesh

Retrieval-Augmented Generation (RAG) has significantly enhanced large language models (LLMs) in knowledge-intensive tasks by incorporating external knowledge retrieval. However, existing RAG frameworks primarily rely on semantic similarity…

Computation and Language · Computer Science 2025-04-18 Elahe Khatibi , Ziyu Wang , Amir M. Rahmani

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by integrating their parametric knowledge with external retrieved content. However, knowledge conflicts caused by internal inconsistencies or noisy retrieved content…

Computation and Language · Computer Science 2025-07-03 Juan Chen , Baolong Bi , Wei Zhang , Jingyan Sui , Xiaofei Zhu , Yuanzhuo Wang , Lingrui Mei , Shenghua Liu

Retrieval-Augmented Generation (RAG) methods have proven highly effective for tasks requiring factual consistency and robust knowledge retrieval. However, large-scale RAG systems consume significant computational resources and are prone to…

Computation and Language · Computer Science 2025-06-03 Jennifer Chen , Aidar Myrzakhan , Yaxin Luo , Hassaan Muhammad Khan , Sondos Mahmoud Bsharat , Zhiqiang Shen

Knowledge Graphs (KGs) represent human-crafted factual knowledge in the form of triplets (head, relation, tail), which collectively form a graph. Question Answering over KGs (KGQA) is the task of answering natural questions grounding the…

Computation and Language · Computer Science 2024-05-31 Costas Mavromatis , George Karypis

Existing multimodal Retrieval-Augmented Generation (RAG) methods for visually rich documents (VRD) are often biased towards retrieving salient knowledge(e.g., prominent text and visual elements), while largely neglecting the critical…

Information Retrieval · Computer Science 2025-11-26 Anyang Tong , Xiang Niu , ZhiPing Liu , Chang Tian , Yanyan Wei , Zenglin Shi , Meng Wang