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Large Language Models (LLMs) often struggle with tasks requiring external knowledge, such as knowledge-intensive Multiple Choice Question Answering (MCQA). Integrating Knowledge Graphs (KGs) can enhance reasoning; however, existing methods…

Computation and Language · Computer Science 2025-04-01 Haochen Liu , Song Wang , Chen Chen , Jundong Li

Large Language Models (LLMs) have shown unprecedented performance in various real-world applications. However, they are known to generate factually inaccurate outputs, a.k.a. the hallucination problem. In recent years, incorporating…

Computation and Language · Computer Science 2024-06-21 Haochen Liu , Song Wang , Yaochen Zhu , Yushun Dong , Jundong Li

Incorporating factual knowledge in knowledge graph is regarded as a promising approach for mitigating the hallucination of large language models (LLMs). Existing methods usually only use the user's input to query the knowledge graph, thus…

Computation and Language · Computer Science 2023-11-23 Xinyan Guan , Yanjiang Liu , Hongyu Lin , Yaojie Lu , Ben He , Xianpei Han , Le Sun

Knowledge graph (KG) embeddings have been a mainstream approach for reasoning over incomplete KGs. However, limited by their inherently shallow and static architectures, they can hardly deal with the rising focus on complex logical queries,…

Machine Learning · Computer Science 2022-08-17 Xiao Liu , Shiyu Zhao , Kai Su , Yukuo Cen , Jiezhong Qiu , Mengdi Zhang , Wei Wu , Yuxiao Dong , Jie Tang

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…

Machine Learning · Computer Science 2025-11-13 Alfred Clemedtson , Borun Shi

Numerous Knowledge Graphs (KGs) are being created to make Recommender Systems (RSs) not only intelligent but also knowledgeable. Integrating a KG in the recommendation process allows the underlying model to extract reasoning paths between…

Information Retrieval · Computer Science 2022-11-11 Giacomo Balloccu , Ludovico Boratto , Gianni Fenu , Mirko Marras

Graph Retrieval-Augmented Generation (GraphRAG) has shown great effectiveness in enhancing the reasoning abilities of LLMs by leveraging graph structures for knowledge representation and modeling complex real-world relationships. However,…

Machine Learning · Computer Science 2026-01-28 Chuanyue Yu , Kuo Zhao , Yuhan Li , Heng Chang , Mingjian Feng , Xiangzhe Jiang , Yufei Sun , Jia Li , Yuzhi Zhang , Jianxin Li , Ziwei Zhang

Large Language Models (LLMs) have showcased impressive reasoning abilities, but often suffer from hallucinations or outdated knowledge. Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) remedies these shortcomings by grounding…

Information Retrieval · Computer Science 2025-05-29 Martin Böckling , Heiko Paulheim , Andreea Iana

Recent works on knowledge base question answering (KBQA) retrieve subgraphs for easier reasoning. A desired subgraph is crucial as a small one may exclude the answer but a large one might introduce more noises. However, the existing…

Computation and Language · Computer Science 2022-07-28 Jing Zhang , Xiaokang Zhang , Jifan Yu , Jian Tang , Jie Tang , Cuiping Li , Hong Chen

Existing work on augmenting question answering (QA) models with external knowledge (e.g., knowledge graphs) either struggle to model multi-hop relations efficiently, or lack transparency into the model's prediction rationale. In this paper,…

Computation and Language · Computer Science 2020-09-21 Yanlin Feng , Xinyue Chen , Bill Yuchen Lin , Peifeng Wang , Jun Yan , Xiang Ren

Despite the impressive performance of large language models (LLMs) pretrained on vast knowledge corpora, advancing their knowledge manipulation-the ability to effectively recall, reason, and transfer relevant knowledge-remains challenging.…

Computation and Language · Computer Science 2026-01-13 Qitan Lv , Tianyu Liu , Qiaosheng Zhang , Xingcheng Xu , Chaochao Lu

The ability to perform multi-modal multi-hop reasoning by iteratively integrating information across various modalities and external knowledge is critical for addressing complex real-world challenges. However, existing Multi-modal Large…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Tao Zhang , Ziqi Zhang , Zongyang Ma , Yuxin Chen , Bing Li , Chunfeng Yuan , Guangting Wang , Fengyun Rao , Ying Shan , Weiming Hu

Large Language Models (LLMs) provide flexible natural language processing capabilities, while knowledge graphs (KGs) offer explicit and structured knowledge. Integrating these two in a complementary manner enables the development of…

Computation and Language · Computer Science 2026-05-12 Shusaku Egami , Aoi Ohta , Tomoki Tsujimura , Masaki Asada , Tatsuya Ishigaki , Ken Fukuda , Masahiro Hamasaki , Hiroya Takamura

Large language models (LLMs), such as ChatGPT and GPT4, are making new waves in the field of natural language processing and artificial intelligence, due to their emergent ability and generalizability. However, LLMs are black-box models,…

Computation and Language · Computer Science 2024-01-26 Shirui Pan , Linhao Luo , Yufei Wang , Chen Chen , Jiapu Wang , Xindong Wu

Improving the performance of large language models (LLMs) in complex question-answering (QA) scenarios has always been a research focal point. Recent studies have attempted to enhance LLMs' performance by combining step-wise planning with…

Computation and Language · Computer Science 2024-10-24 Junjie Wang , Mingyang Chen , Binbin Hu , Dan Yang , Ziqi Liu , Yue Shen , Peng Wei , Zhiqiang Zhang , Jinjie Gu , Jun Zhou , Jeff Z. Pan , Wen Zhang , Huajun Chen

Large Language Models (LLMs) have achieved impressive capabilities in language understanding and generation, yet they continue to underperform on knowledge-intensive reasoning tasks due to limited access to structured context and multi-hop…

Computation and Language · Computer Science 2025-06-26 Travis Thompson , Seung-Hwan Lim , Paul Liu , Ruoying He , Dongkuan Xu

Despite the rapid progress of large language models (LLMs), knowledge graph-based question answering (KGQA) remains essential for producing verifiable and hallucination-resistant answers in many real-world settings where answer…

Computation and Language · Computer Science 2026-01-21 Ruijie Wang , Luca Rossetto , Michael Cochez , Abraham Bernstein

Large language models (LLMs) have achieved remarkable performance on knowledge graph question answering (KGQA) tasks by planning and interacting with knowledge graphs. However, existing methods often confuse tool utilization with knowledge…

Computation and Language · Computer Science 2025-03-10 Mufan Xu , Gewen Liang , Kehai Chen , Wei Wang , Xun Zhou , Muyun Yang , Tiejun Zhao , Min Zhang

Large language models (LLMs) have recently emerged as powerful tools, finding many medical applications. LLMs' ability to coalesce vast amounts of information from many sources to generate a response-a process similar to that of a human…

Knowledge Graph-based recommendations have gained significant attention due to their ability to leverage rich semantic relationships. However, constructing and maintaining Knowledge Graphs (KGs) is resource-intensive, and the accuracy of…

Information Retrieval · Computer Science 2025-02-07 Rui Cai , Chao Wang , Qianyi Cai , Dazhong Shen , Hui Xiong