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Large language models (LLMs) have demonstrated impressive reasoning abilities in complex tasks. However, they lack up-to-date knowledge and experience hallucinations during reasoning, which can lead to incorrect reasoning processes and…

计算与语言 · 计算机科学 2024-02-27 Linhao Luo , Yuan-Fang Li , Gholamreza Haffari , Shirui Pan

Recently, ChatGPT, a representative large language model (LLM), has gained considerable attention due to its powerful emergent abilities. Some researchers suggest that LLMs could potentially replace structured knowledge bases like knowledge…

计算与语言 · 计算机科学 2024-01-31 Linyao Yang , Hongyang Chen , Zhao Li , Xiao Ding , Xindong Wu

Pre-trained large language models (PLLMs) like OpenAI ChatGPT and Google Gemini face challenges such as inaccurate factual recall, hallucinations, biases, and future data leakage for temporal Knowledge Graph (tKG) forecasting. To address…

计算与语言 · 计算机科学 2024-08-27 Geethan Sannidhi , Sagar Srinivas Sakhinana , Venkataramana Runkana

Reasoning over knowledge graphs (KGs) with first-order logic (FOL) queries is challenging due to the inherent incompleteness of real-world KGs and the compositional complexity of logical query structures. Most existing methods rely on…

计算与语言 · 计算机科学 2025-12-23 Ziyan Zhang , Chao Wang , Zhuo Chen , Lei Chen , Chiyi Li , Kai Song

Knowledge graphs (KGs) are essential in applications such as network alignment, question-answering, and recommender systems (RSs) since they offer structured relational data that facilitate the inference of indirect relationships. However,…

人工智能 · 计算机科学 2024-08-01 Yunsheng Wang , Songhao Chen , Kevin Jin

Large Language Models (LLMs) have demonstrated remarkable capabilities in text generation and understanding, yet their reliance on implicit, unstructured knowledge often leads to factual inaccuracies and limited interpretability. Knowledge…

计算与语言 · 计算机科学 2025-06-17 Qinggang Zhang

Large language models with retrieval-augmented generation encounter a pivotal challenge in intricate retrieval tasks, e.g., multi-hop question answering, which requires the model to navigate across multiple documents and generate…

信息检索 · 计算机科学 2025-05-06 Weijie Chen , Ting Bai , Jinbo Su , Jian Luan , Wei Liu , Chuan Shi

In the current era of big data, extracting deep insights from massive, heterogeneous, and complexly associated multi-dimensional data has become a significant challenge. Large Language Models (LLMs) perform well in natural language…

人工智能 · 计算机科学 2025-11-21 Xi Wang , Xianyao Ling , Kun Li , Gang Yin , Liang Zhang , Jiang Wu , Jun Xu , Fu Zhang , Wenbo Lei , Annie Wang , Peng Gong

The rapid advancements in large language models (LLMs) have ignited interest in the temporal knowledge graph (tKG) domain, where conventional embedding-based and rule-based methods dominate. The question remains open of whether pre-trained…

计算与语言 · 计算机科学 2024-04-18 Ruotong Liao , Xu Jia , Yangzhe Li , Yunpu Ma , Volker Tresp

Conversational question answering increasingly relies on retrieval-augmented generation (RAG) to ground large language models (LLMs) in external knowledge. Yet, most existing studies evaluate RAG methods in isolation and primarily focus on…

计算与语言 · 计算机科学 2026-02-11 Klejda Alushi , Jan Strich , Chris Biemann , Martin Semmann

Generative AI, such as Large Language Models (LLMs), has achieved impressive progress but still produces hallucinations and unverifiable claims, limiting reliability in sensitive domains. Retrieval-Augmented Generation (RAG) improves…

Large language models (LLMs) excel at natural language tasks but are limited by their static parametric knowledge, especially in knowledge-intensive task. Retrieval-augmented generation (RAG) mitigates this by integrating external…

人工智能 · 计算机科学 2025-10-10 Yi Jiang , Lei Shen , Lujie Niu , Sendong Zhao , Wenbo Su , Bo Zheng

In today's rapidly evolving landscape of Artificial Intelligence, large language models (LLMs) have emerged as a vibrant research topic. LLMs find applications in various fields and contribute significantly. Despite their powerful language…

计算与语言 · 计算机科学 2024-09-10 Tuan Bui , Oanh Tran , Phuong Nguyen , Bao Ho , Long Nguyen , Thang Bui , Tho Quan

Student commitment towards a learning recommendation is not separable from their understanding of the reasons it was recommended to them; and their ability to modify it based on that understanding. Among explainability approaches, chatbots…

人工智能 · 计算机科学 2024-01-25 Hasan Abu-Rasheed , Mohamad Hussam Abdulsalam , Christian Weber , Madjid Fathi

Graph Retrieval-Augmented Generation (GraphRAG) has proven highly effective in enhancing the performance of Large Language Models (LLMs) on tasks that require external knowledge. By leveraging Knowledge Graphs (KGs), GraphRAG improves…

人工智能 · 计算机科学 2025-11-06 Ruiyi Yang , Hao Xue , Imran Razzak , Hakim Hacid , Flora D. Salim

Retrieval Augmented Generation (RAG) enables Large Language Models (LLMs) to generalize to new information by decoupling reasoning capabilities from static knowledge bases. Traditional RAG enhancements have explored vertical…

软件工程 · 计算机科学 2025-04-30 Michael Iannelli , Sneha Kuchipudi , Vera Dvorak

Large language models (LLMs) has become a significant research focus and is utilized in various fields, such as text generation and dialog systems. One of the most essential applications of LLM is Retrieval Augmented Generation (RAG), which…

计算与语言 · 计算机科学 2025-10-06 Sicheng Dong , Vahid Zolfaghari , Nenad Petrovic , Alois Knoll

Retrieval-Augmented Generation (RAG) has emerged as a powerful approach for grounding Large Language Model (LLM)-based chatbot responses on external knowledge. However, existing RAG studies typically assume well-structured textual sources…

计算与语言 · 计算机科学 2026-02-13 Sungmoon Kim , Hyuna Jeon , Dahye Kim , Mingyu Kim , Dong-Kyu Chae , Jiwoong Kim

The integration of Large Language Models (LLMs) with Retrieval-Augmented Generation (RAG) has significantly advanced Knowledge Graph Question Answering (KGQA). However, existing LLM-driven KGQA systems act as stateless planners, generating…

数据库 · 计算机科学 2026-04-30 Yushi Sun , Lei Chen

The problem of answering questions using knowledge from pre-trained language models (LMs) and knowledge graphs (KGs) presents two challenges: given a QA context (question and answer choice), methods need to (i) identify relevant knowledge…

计算与语言 · 计算机科学 2022-12-14 Michihiro Yasunaga , Hongyu Ren , Antoine Bosselut , Percy Liang , Jure Leskovec