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Large language models (LLMs) achieve optimal utility when their responses are grounded in external knowledge sources. However, real-world documents, such as annual reports, scientific papers, and clinical guidelines, frequently combine…

信息检索 · 计算机科学 2025-12-17 Chi Zhang , Qiyang Chen , Mengqi Zhang

Even for a conservative estimate, 80% of enterprise data reside in unstructured files, stored in data lakes that accommodate heterogeneous formats. Classical search engines can no longer meet information seeking needs, especially when the…

计算与语言 · 计算机科学 2024-06-06 Qiang Sun , Yuanyi Luo , Wenxiao Zhang , Sirui Li , Jichunyang Li , Kai Niu , Xiangrui Kong , Wei Liu

Misinformation spreading over the Internet poses a significant threat to both societies and individuals, necessitating robust and scalable fact-checking that relies on retrieving accurate and trustworthy evidence. Previous methods rely on…

人工智能 · 计算机科学 2026-03-03 Shuzhi Gong , Richard O. Sinnott , Jianzhong Qi , Cecile Paris , Preslav Nakov , Zhuohan Xie

Large language models have shown remarkable language processing and reasoning ability but are prone to hallucinate when asked about private data. Retrieval-augmented generation (RAG) retrieves relevant data that fit into an LLM's context…

机器学习 · 计算机科学 2025-11-13 Alfred Clemedtson , Borun Shi

Large Language Models (LLMs) demonstrate impressive general capabilities but often struggle with step-by-step procedural reasoning, a critical challenge in complex interactive environments. While retrieval-augmented methods like GraphRAG…

人工智能 · 计算机科学 2026-03-13 Jonathan Leung , Yongjie Wang , Zhiqi Shen

As the legal community increasingly examines the use of large language models (LLMs) for various legal applications, legal AI developers have turned to retrieval-augmented LLMs ("RAG" systems) to improve system performance and robustness.…

Graph-based retrieval-augmented generation (Graph-based RAG) has demonstrated significant potential in enhancing Large Language Models (LLMs) with structured knowledge. However, existing methods face three critical challenges: Inaccurate…

机器学习 · 计算机科学 2026-03-18 Yubo Wang , Haoyang Li , Fei Teng , Lei Chen

Financial disclosures such as 10-K filings present challenging retrieval problems due to their length, regulatory section hierarchy, and domain-specific language, which standard retrieval-augmented generation (RAG) models underuse. We…

计算工程、金融与科学 · 计算机科学 2025-09-16 Ying Li , Mengyu Wang , Miguel de Carvalho , Sotirios Sabanis , Tiejun Ma

Attribution and fact verification are critical challenges in natural language processing for assessing information reliability. While automated systems and Large Language Models (LLMs) aim to retrieve and select concise evidence to support…

计算与语言 · 计算机科学 2026-01-30 Guy Alt , Eran Hirsch , Serwar Basch , Ido Dagan , Oren Glickman

Technology-enhanced learning environments often help students retrieve relevant learning content for questions arising during self-paced study. Large language models (LLMs) have emerged as novel aids for information retrieval during…

信息检索 · 计算机科学 2025-09-29 Eason Chen , Chuangji Li , Shizhuo Li , Zimo Xiao , Jionghao Lin , Kenneth R. Koedinger

Large Language Models (LLMs) and Knowledge Graphs (KGs) offer a promising approach to robust and explainable Question Answering (QA). While LLMs excel at natural language understanding, they suffer from knowledge gaps and hallucinations.…

机器学习 · 计算机科学 2025-04-15 Jasper Linders , Jakub M. Tomczak

Retrieval-Augmented Generation (RAG) integrates external knowledge with Large Language Models (LLMs) to enhance factual correctness and mitigate hallucination. However, dense retrievers often become the bottleneck of RAG systems due to…

计算与语言 · 计算机科学 2025-10-27 Yuan Li , Qi Luo , Xiaonan Li , Bufan Li , Qinyuan Cheng , Bo Wang , Yining Zheng , Yuxin Wang , Zhangyue Yin , Xipeng Qiu

Industrial processes produce a considerable volume of data and thus information. Whether it is structured sensory data or semi- to unstructured textual data, the knowledge that can be derived from it is critical to the sustainable…

信息检索 · 计算机科学 2024-01-03 Hasan Abu-Rasheed , Christian Weber , Johannes Zenkert , Roland Krumm , Madjid Fathi

Retrieval-Augmented Generation (RAG) has recently demonstrated the performance of Large Language Models (LLMs) in the knowledge-intensive tasks such as Question-Answering (QA). RAG expands the query context by incorporating external…

机器学习 · 计算机科学 2024-06-18 Zijian Hei , Weiling Liu , Wenjie Ou , Juyi Qiao , Junming Jiao , Guowen Song , Ting Tian , Yi Lin

The integration of generative Large Language Models (LLMs) into various applications, including the legal domain, has been accelerated by their expansive and versatile nature. However, when facing a legal case, users without a legal…

计算与语言 · 计算机科学 2024-06-07 Yang Wu , Chenghao Wang , Ece Gumusel , Xiaozhong Liu

Legal judgment prediction is essential for enhancing judicial efficiency. In this work, we identify that existing large language models (LLMs) underperform in this domain due to challenges in understanding case complexities and…

计算与语言 · 计算机科学 2024-08-07 Chenlong Deng , Kelong Mao , Yuyao Zhang , Zhicheng Dou

Legal case retrieval for sourcing similar cases is critical in upholding judicial fairness. Different from general web search, legal case retrieval involves processing lengthy, complex, and highly specialized legal documents. Existing…

信息检索 · 计算机科学 2024-07-01 Chenlong Deng , Kelong Mao , Zhicheng Dou

Vision-Language Models (VLMs) generate discourse-level, multi-sentence visual descriptions, challenging text scene graph parsers built for single-sentence caption-to-graph mapping. Current approaches typically merge sentence-level parsing…

计算与语言 · 计算机科学 2025-10-27 Shaoqing Lin , Chong Teng , Fei Li , Donghong Ji , Lizhen Qu , Zhuang Li

Knowledge conflict often arises in retrieval-augmented generation (RAG) systems, where retrieved documents may be inconsistent with one another or contradict the model's parametric knowledge. Existing benchmarks for investigating the…

计算与语言 · 计算机科学 2025-10-10 Jungyeon Lee , Kangmin Lee , Taeuk Kim

Large language models (LLMs) commonly struggle with specialized or emerging topics which are rarely seen in the training corpus. Graph-based retrieval-augmented generation (GraphRAG) addresses this by structuring domain knowledge as a graph…

信息检索 · 计算机科学 2025-06-05 Zhefan Wang , Huanjun Kong , Jie Ying , Wanli Ouyang , Nanqing Dong