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Commonsense knowledge is crucial to many natural language processing tasks. Existing works usually incorporate graph knowledge with conventional graph neural networks (GNNs), resulting in a sequential pipeline that compartmentalizes the…

计算与语言 · 计算机科学 2024-09-24 Hongbo Zhang , Chen Tang , Tyler Loakman , Bohao Yang , Stefan Goetze , Chenghua Lin

Constructing Knowledge Graphs (KGs) from unstructured text provides a structured framework for knowledge representation and reasoning, yet current LLM-based approaches struggle with a fundamental trade-off: factual coverage often leads to…

计算与语言 · 计算机科学 2026-04-24 Sanghyeok Choi , Woosang Jeon , Kyuseok Yang , Taehyeong Kim

The integration of knowledge graphs (KGs) with large language models (LLMs) offers significant potential to improve the retrieval phase of retrieval-augmented generation (RAG) systems. In this study, we propose KG-CQR, a novel framework for…

计算与语言 · 计算机科学 2025-09-09 Chi Minh Bui , Ngoc Mai Thieu , Van Vinh Nguyen , Jason J. Jung , Khac-Hoai Nam Bui

It is crucial to automatically construct knowledge graphs (KGs) of diverse new relations to support knowledge discovery and broad applications. Previous KG construction methods, based on either crowdsourcing or text mining, are often…

计算与语言 · 计算机科学 2023-06-05 Shibo Hao , Bowen Tan , Kaiwen Tang , Bin Ni , Xiyan Shao , Hengzhe Zhang , Eric P. Xing , Zhiting Hu

Knowledge Graph Question Answering (KGQA) has become a prominent area in natural language processing due to the emergence of large-scale Knowledge Graphs (KGs). Recently Neural Machine Translation based approaches are gaining momentum that…

计算与语言 · 计算机科学 2021-09-21 Sukannya Purkayastha , Saswati Dana , Dinesh Garg , Dinesh Khandelwal , G P Shrivatsa Bhargav

Multi-hop Question Answering over Knowledge Graph~(KGQA) aims to find the answer entities that are multiple hops away from the topic entities mentioned in a natural language question on a large-scale Knowledge Graph (KG). To cope with the…

计算与语言 · 计算机科学 2023-03-02 Jinhao Jiang , Kun Zhou , Wayne Xin Zhao , Ji-Rong Wen

Recent studies in medical question answering (Medical QA) have actively explored the integration of large language models (LLMs) with biomedical knowledge graphs (KGs) to improve factual accuracy. However, most existing approaches still…

计算与语言 · 计算机科学 2026-01-15 Chaerin Lee , Sohee Park , Hyunsik Na , Daseon Choi

Large Language Models (LLMs) are being adopted at an unprecedented rate, yet still face challenges in knowledge-intensive domains like biomedicine. Solutions such as pre-training and domain-specific fine-tuning add substantial computational…

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

Machine Learning has been the quintessential solution for many AI problems, but learning is still heavily dependent on the specific training data. Some learning models can be incorporated with a prior knowledge in the Bayesian set up, but…

计算与语言 · 计算机科学 2018-05-22 K M Annervaz , Somnath Basu Roy Chowdhury , Ambedkar Dukkipati

The intersection of vision and language is of major interest due to the increased focus on seamless integration between recognition and reasoning. Scene graphs (SGs) have emerged as a useful tool for multimodal image analysis, showing…

计算机视觉与模式识别 · 计算机科学 2023-10-04 Bruno Souza , Marius Aasan , Helio Pedrini , Adín Ramírez Rivera

Knowledge Graph Question Answering (KGQA) involves retrieving entities as answers from a Knowledge Graph (KG) using natural language queries. The challenge is to learn to reason over question-relevant KG facts that traverse KG entities and…

计算与语言 · 计算机科学 2022-10-26 Costas Mavromatis , George Karypis

The advent of Large Language Models (LLMs) has revolutionized natural language processing. However, these models face challenges in retrieving precise information from vast datasets. Retrieval-Augmented Generation (RAG) was developed to…

信息检索 · 计算机科学 2025-03-04 Yuxin Yang , Haoyang Wu , Tao Wang , Jia Yang , Hao Ma , Guojie Luo

In this research, we combine Transformer-based relation extraction with matching of knowledge graphs (KGs) and apply them to answering multiple-choice questions (MCQs) while maintaining the traceability of the output process. KGs are…

计算与语言 · 计算机科学 2025-11-19 Naoki Shimoda , Akihiro Yamamoto

Augmenting pre-trained language models with knowledge graphs (KGs) has achieved success on various commonsense reasoning tasks. However, for a given task instance, the KG, or certain parts of the KG, may not be useful. Although KG-augmented…

计算与语言 · 计算机科学 2022-12-20 Aaron Chan , Jiashu Xu , Boyuan Long , Soumya Sanyal , Tanishq Gupta , Xiang Ren

This study aims to optimize the existing retrieval-augmented generation model (RAG) by introducing a graph structure to improve the performance of the model in dealing with complex knowledge reasoning tasks. The traditional RAG model has…

信息检索 · 计算机科学 2024-11-07 Yuxin Dong , Shuo Wang , Hongye Zheng , Jiajing Chen , Zhenhong Zhang , Chihang Wang

Knowledge Graph Embedding (KGE) methods have gained enormous attention from a wide range of AI communities including Natural Language Processing (NLP) for text generation, classification and context induction. Embedding a huge number of…

人工智能 · 计算机科学 2022-09-19 Mojtaba Moattari , Sahar Vahdati , Farhana Zulkernine

Injecting textual information into knowledge graph (KG) entity representations has been a worthwhile expedition in terms of improving performance in KG oriented tasks within the NLP community. External knowledge often adopted to enhance KG…

计算与语言 · 计算机科学 2023-10-26 Micheal Abaho , Yousef H. Alfaifi

Knowledge graph (KG) is known to be helpful for the task of question answering (QA), since it provides well-structured relational information between entities, and allows one to further infer indirect facts. However, it is challenging to…

机器学习 · 计算机科学 2017-11-29 Yuyu Zhang , Hanjun Dai , Zornitsa Kozareva , Alexander J. Smola , Le Song

Integrating structured knowledge from Knowledge Graphs (KGs) into Large Language Models (LLMs) remains a key challenge for symbolic reasoning. Existing methods mainly rely on prompt engineering or fine-tuning, which lose structural fidelity…

机器学习 · 计算机科学 2025-05-13 Erica Coppolillo