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Inductive Knowledge Graph Reasoning (KGR) aims to discover facts in open-domain KGs containing unknown entities and relations, which poses a challenge for KGR models in comprehending uncertain KG components. Existing studies have proposed…

Computation and Language · Computer Science 2026-04-08 Xingrui Zhuo , Jiapu Wang , Gongqing Wu , Zhongyuan Wang , Jichen Zhang , Shirui Pan , Xindong Wu

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…

Artificial Intelligence · Computer Science 2026-04-21 Adela Bâra , Simona-Vasilica Oprea

Large language models (LLMs) achieve strong results on knowledge graph question answering (KGQA), but most benchmarks assume complete knowledge graphs (KGs) where direct supporting triples exist. This reduces evaluation to shallow retrieval…

Artificial Intelligence · Computer Science 2025-12-18 Dongzhuoran Zhou , Yuqicheng Zhu , Xiaxia Wang , Hongkuan Zhou , Jiaoyan Chen , Steffen Staab , Yuan He , Evgeny Kharlamov

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…

Machine Learning · Computer Science 2025-05-29 Harry Li , Gabriel Appleby , Kenneth Alperin , Steven R Gomez , Ashley Suh

Retrieval of information from graph-structured knowledge bases represents a promising direction for improving the factuality of LLMs. While various solutions have been proposed, a comparison of methods is difficult due to the lack of…

Machine Learning · Computer Science 2025-12-05 Alberto Cattaneo , Carlo Luschi , Daniel Justus

Evaluating multi-turn dialogue systems remains challenging because response quality depends not only on the current prompt, but also on previously established entities, claims, and conversational commitments. Existing automatic evaluators,…

Computation and Language · Computer Science 2026-05-19 Avijit Shil , Suman Samui

Knowledge graph embeddings (KGEs) were originally developed to infer true but missing facts in incomplete knowledge repositories. In this paper, we link knowledge graph completion and counterfactual reasoning via our new task CFKGR. We…

Machine Learning · Computer Science 2024-03-12 Lena Zellinger , Andreas Stephan , Benjamin Roth

In a hyper-relational knowledge graph (HKG), each fact is composed of a main triple associated with attribute-value qualifiers, which express additional factual knowledge. The hyper-relational knowledge graph completion (HKGC) task aims at…

Artificial Intelligence · Computer Science 2025-07-01 Zhiwei Hu , Víctor Gutiérrez-Basulto , Zhiliang Xiang , Ru Li , Jeff Z. Pan

In the task of Knowledge Graph Completion (KGC), the existing datasets and their inherent subtasks carry a wealth of shared knowledge that can be utilized to enhance the representation of knowledge triplets and overall performance. However,…

Computation and Language · Computer Science 2024-05-14 Yongxue Shan , Jie Zhou , Jie Peng , Xin Zhou , Jiaqian Yin , Xiaodong Wang

The ability of knowledge graphs to represent complex relationships at scale has led to their adoption for various needs including knowledge representation, question-answering, and recommendation systems. Knowledge graphs are often…

Computation and Language · Computer Science 2023-05-18 Jason Youn , Ilias Tagkopoulos

In natural language processing (NLP) and computer vision (CV), the successful application of foundation models across diverse tasks has demonstrated their remarkable potential. However, despite the rich structural and textual information…

Computation and Language · Computer Science 2025-05-29 Yin Hua , Zhiqiang Liu , Mingyang Chen , Zheng Fang , Chi Man Wong , Lingxiao Li , Chi Man Vong , Huajun Chen , Wen Zhang

Answering questions using pre-trained language models (LMs) and knowledge graphs (KGs) presents challenges in identifying relevant knowledge and performing joint reasoning.We compared LMs (fine-tuned for the task) with the previously…

Computation and Language · Computer Science 2024-01-02 Shreyas Verma , Manoj Parmar , Palash Choudhary , Sanchita Porwal

Hallucination, a persistent challenge plaguing language models, undermines their efficacy and trustworthiness in various natural language processing endeavors by generating responses that deviate from factual accuracy or coherence. This…

Computation and Language · Computer Science 2024-12-30 Ratnesh Kumar Joshi , Sagnik Sengupta , Asif Ekbal

Inferring new facts from existing knowledge graphs (KG) with explainable reasoning processes is a significant problem and has received much attention recently. However, few studies have focused on relation types unseen in the original KG,…

Machine Learning · Computer Science 2019-06-14 Zhengxiao Du , Chang Zhou , Ming Ding , Hongxia Yang , Jie Tang

Knowledge Graph Completion (KGC) predicts missing facts in an incomplete Knowledge Graph. Almost all of existing KGC research is applicable to only one KG at a time, and in one language only. However, different language speakers may…

Artificial Intelligence · Computer Science 2021-04-20 Harkanwar Singh , Prachi Jain , Mausam , Soumen Chakrabarti

Large Language Models (LLMs) exhibit strong reasoning capabilities in complex tasks. However, they still struggle with hallucinations and factual errors in knowledge-intensive scenarios like knowledge graph question answering (KGQA). We…

Computation and Language · Computer Science 2025-11-12 Songze Li , Zhiqiang Liu , Zhengke Gui , Huajun Chen , Wen Zhang

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…

Computation and Language · Computer Science 2026-04-24 Sanghyeok Choi , Woosang Jeon , Kyuseok Yang , Taehyeong Kim

Temporal Knowledge Graphs (TKGs) represent dynamic facts as timestamped relations between entities. TKG completion involves forecasting missing or future links, requiring models to reason over time-evolving structure. While LLMs show…

Machine Learning · Computer Science 2025-05-26 Ömer Faruk Akgül , Feiyu Zhu , Yuxin Yang , Rajgopal Kannan , Viktor Prasanna

Personalized messaging plays an essential role in improving communication in areas such as healthcare, education, and professional engagement. This paper introduces a framework that uses the Knowledge Graph (KG) to dynamically rephrase…

Artificial Intelligence · Computer Science 2025-03-19 Rajeev Kumar , Harishankar Kumar , Kumari Shalini

Knowledge graphs (KGs) have commonly been constructed using predefined symbolic relation schemas, typically implemented as categorical relation labels. This design has notable shortcomings: real-world relations are often contextual,…

Computation and Language · Computer Science 2026-01-15 Kanyao Han , Yushang Lai