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Retrieval Augmented Generation (RAG) has gradually emerged as a promising paradigm for enhancing the accuracy and factual consistency of content generated by large language models (LLMs). However, existing RAG studies primarily focus on…

信息检索 · 计算机科学 2025-07-24 Qikai Wei , Huansheng Ning , Chunlong Han , Jianguo Ding

Large language models (LLMs) have demonstrated remarkable capabilities in a wide range of tasks, yet their application to specialized domains remains challenging due to the need for deep expertise. Retrieval-Augmented generation (RAG) has…

Large language models (LLMs) have shown great potential in story generation, but challenges remain in maintaining long-form coherence and effective, user-friendly control. Retrieval-augmented generation (RAG) has proven effective in…

Large language models (LLMs) still struggle with multi-hop reasoning over knowledge-graphs (KGs), and we identify a previously overlooked structural reason for this difficulty: Transformer attention heads naturally specialize in distinct…

计算与语言 · 计算机科学 2026-04-15 Jinliang Liu , Jiale Bai , Shaoning Zeng

Large language models (LLMs) have demonstrated impressive generative capabilities with the potential to innovate in medicine. However, the application of LLMs in real clinical settings remains challenging due to the lack of factual…

Large Language Models (LLMs) have demonstrated strong capabilities in web search and reasoning. However, their dependence on static training corpora makes them prone to factual errors and knowledge gaps. Retrieval-Augmented Generation (RAG)…

人工智能 · 计算机科学 2026-01-26 Jiasheng Xu , Mingda Li , Yongqiang Tang , Peijie Wang , Wensheng Zhang

Large Language Models (LLMs) have shown strong potential in recommender systems due to their contextual learning and generalisation capabilities. Existing LLM-based recommendation approaches typically formulate the recommendation task using…

信息检索 · 计算机科学 2025-07-09 Zeyuan Meng , Zixuan Yi , Iadh Ounis

Large language models like GPT-4, Gemini, and Claude have transformed natural language processing (NLP) tasks such as question answering, dialogue generation, summarization, and so forth; yet their susceptibility to hallucination stands as…

计算与语言 · 计算机科学 2025-07-21 Nur A Zarin Nishat , Andrea Coletta , Luigi Bellomarini , Kossi Amouzouvi , Jens Lehmann , Sahar Vahdati

The task of multi-hop link prediction within knowledge graphs (KGs) stands as a challenge in the field of knowledge graph analysis, as it requires the model to reason through and understand all intermediate connections before making a…

计算与语言 · 计算机科学 2025-06-17 Dong Shu , Tianle Chen , Mingyu Jin , Chong Zhang , Mengnan Du , Yongfeng Zhang

Large Language Models (LLMs), although powerful in general domains, often perform poorly on domain-specific tasks such as medical question answering (QA). In addition, LLMs tend to function as "black-boxes", making it challenging to modify…

计算与语言 · 计算机科学 2024-08-19 Yucheng Shi , Shaochen Xu , Tianze Yang , Zhengliang Liu , Tianming Liu , Quanzheng Li , Xiang Li , Ninghao Liu

Large language models (LLMs) have made remarkable strides in various natural language processing tasks, but their performance on complex reasoning problems remains hindered by a lack of explainability and trustworthiness. This issue, often…

计算与语言 · 计算机科学 2025-10-21 Rong Wu , Pinlong Cai , Jianbiao Mei , Licheng Wen , Tao Hu , Xuemeng Yang , Daocheng Fu , Botian Shi

Current knowledge graph (KG) construction methods are confirmatory, focusing on recovering known relationships rather than identifying novel or context-dependent nodes. This paper proposes a phenotype-driven and evidence-governed framework…

人工智能 · 计算机科学 2026-04-21 Adela Bâra , Simona-Vasilica Oprea

Knowledge graphs (KGs) are powerful data structures, but exploring them effectively remains difficult for even expert users. Large language models (LLMs) are increasingly used to address this gap, yet little is known empirically about how…

机器学习 · 计算机科学 2025-05-29 Harry Li , Gabriel Appleby , Kenneth Alperin , Steven R Gomez , Ashley Suh

Large Language Models (LLMs) have revolutionized Natural Language Processing (NLP) based applications including automated text generation, question answering, chatbots, and others. However, they face a significant challenge: hallucinations,…

计算与语言 · 计算机科学 2024-11-22 Ernests Lavrinovics , Russa Biswas , Johannes Bjerva , Katja Hose

Current knowledge-enhanced large language models (LLMs) rely on static, pre-constructed knowledge bases that suffer from coverage gaps and temporal obsolescence, limiting their effectiveness in dynamic information environments. We present…

机器学习 · 计算机科学 2025-10-13 Jing Li , Zhijie Sun , Zhicheng Zhou , Suming Qiu , Junjie Huang , Haijia Sun , Linyuan Qiu

Knowledge Graph-based Retrieval-Augmented Generation (KG-RAG) has emerged as a promising paradigm for enhancing LLM reasoning by retrieving multi-hop paths from KGs. However, existing KG-RAG frameworks often underperform in real-world…

数据库 · 计算机科学 2026-04-20 Zhenbo Fu , Yuanzhe Zhang , Qiange Wang , Hao Yuan , Yuehao Xu , Enze Yi , Yanfeng Zhang , Ge Yu

Narrative data spans all disciplines and provides a coherent model of the world to the reader or viewer. Recent advancement in machine learning and Large Language Models (LLMs) have enable great strides in analyzing natural language.…

Retrieval-Augmented Generation (RAG) based on knowledge graphs (KGs) enhances large language models (LLMs) by providing structured and interpretable external knowledge. However, existing KG-based RAG methods struggle to retrieve accurate…

人工智能 · 计算机科学 2025-10-21 Junchi Yu , Yujie Liu , Jindong Gu , Philip Torr , Dongzhan Zhou

Recent large language model (LLM) reasoning, despite its success, suffers from limited domain knowledge, susceptibility to hallucinations, and constrained reasoning depth, particularly in small-scale models deployed in resource-constrained…

人工智能 · 计算机科学 2025-03-04 Wenjie Wu , Yongcheng Jing , Yingjie Wang , Wenbin Hu , Dacheng Tao

Visual Question Answering (VQA) focuses on providing answers to natural language questions by utilizing information from images. Although cutting-edge multimodal large language models (MLLMs) such as GPT-4o achieve strong performance on VQA…

计算机视觉与模式识别 · 计算机科学 2025-07-09 Zhengxuan Zhang , Yin Wu , Yuyu Luo , Nan Tang