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Modeling time-evolving knowledge graphs (KGs) has recently gained increasing interest. Here, graph representation learning has become the dominant paradigm for link prediction on temporal KGs. However, the embedding-based approaches largely…

Machine Learning · Computer Science 2021-04-02 Zhen Han , Peng Chen , Yunpu Ma , Volker Tresp

Knowledge graphs (KGs) are widely acknowledged as incomplete, and new entities are constantly emerging in the real world. Inductive KG reasoning aims to predict missing facts for these new entities. Among existing models, graph neural…

Computation and Language · Computer Science 2024-07-16 Zhoutian Shao , Yuanning Cui , Wei Hu

The fusion of language models (LMs) and knowledge graphs (KGs) is widely used in commonsense question answering, but generating faithful explanations remains challenging. Current methods often overlook path decoding faithfulness, leading to…

Computation and Language · Computer Science 2024-09-23 Weihe Zhai , Arkaitz Zubiaga

Knowledge Graph (KG) errors introduce non-negligible noise, severely affecting KG-related downstream tasks. Detecting errors in KGs is challenging since the patterns of errors are unknown and diverse, while ground-truth labels are rare or…

Machine Learning · Computer Science 2022-11-21 Qinggang Zhang , Junnan Dong , Keyu Duan , Xiao Huang , Yezi Liu , Linchuan Xu

Traditional knowledge graph (KG) completion models learn embeddings to predict missing facts. Recent works attempt to complete KGs in a text-generation manner with large language models (LLMs). However, they need to ground the output of…

Computation and Language · Computer Science 2024-07-24 Yang Liu , Xiaobin Tian , Zequn Sun , Wei Hu

Knowledge Graph Completion is a task of expanding the knowledge graph/base through estimating possible entities, or proper nouns, that can be connected using a set of predefined relations, or verb/predicates describing interconnections of…

Computation and Language · Computer Science 2021-01-25 Tong Chen , Sirou Zhu , Yiming Wen , Zhaomin Zheng

Knowledge graph (KG) based Collaborative Filtering is an effective approach to personalizing recommendation systems for relatively static domains such as movies and books, by leveraging structured information from KG to enrich both item and…

Information Retrieval · Computer Science 2022-04-05 Weizhe Lin , Linjun Shou , Ming Gong , Pei Jian , Zhilin Wang , Bill Byrne , Daxin Jiang

Due to regulations like the Right to be Forgotten, there is growing demand for removing training data and its influence from models. Since full retraining is costly, various machine unlearning methods have been proposed. In this paper, we…

Machine Learning · Computer Science 2025-08-20 Yang Xiao , Ruimeng Ye , Bohan Liu , Xiaolong Ma , Bo Hui

Knowledge graphs (KGs) have emerged as a powerful paradigm for structuring and leveraging diverse real-world knowledge, which serve as a fundamental technology for enabling cognitive intelligence systems with advanced understanding and…

Artificial Intelligence · Computer Science 2025-06-16 Guanglin Niu , Bo Li , Yangguang Lin

Knowledge graphs (KGs) provide information in machine interpretable form. In cases where multiple KGs are used in the same system, that information needs to be integrated. This is usually done by automated matching systems. Most of those…

Information Retrieval · Computer Science 2021-11-04 Sven Hertling , Heiko Paulheim

Knowledge-graph-based reasoning has drawn a lot of attention due to its interpretability. However, previous methods suffer from the incompleteness of the knowledge graph, namely the interested link or entity that can be missing in the…

Computation and Language · Computer Science 2019-12-06 Yunan Zhang , Xiang Cheng , Heting Gao , Chengxiang Zhai

Explanations accompanied by a recommendation can assist users in understanding the decision made by recommendation systems, which in turn increases a user's confidence and trust in the system. Recently, research has focused on generating…

Computation and Language · Computer Science 2023-08-31 Anthony Colas , Jun Araki , Zhengyu Zhou , Bingqing Wang , Zhe Feng

This paper studies speculative reasoning task on real-world knowledge graphs (KG) that contain both \textit{false negative issue} (i.e., potential true facts being excluded) and \textit{false positive issue} (i.e., unreliable or outdated…

Machine Learning · Computer Science 2023-06-14 Ruijie Wang , Baoyu Li , Yichen Lu , Dachun Sun , Jinning Li , Yuchen Yan , Shengzhong Liu , Hanghang Tong , Tarek F. Abdelzaher

Large language models (LLMs) typically improve performance by either retrieving semantically similar information, or enhancing reasoning abilities through structured prompts like chain-of-thought. While both strategies are considered…

Computation and Language · Computer Science 2024-10-16 Yejin Kim , Eojin Kang , Juae Kim , H. Howie Huang

Knowledge Graphs (KGs), representing facts as triples, have been widely adopted in many applications. Reasoning tasks such as link prediction and rule induction are important for the development of KGs. Knowledge Graph Embeddings (KGEs)…

Artificial Intelligence · Computer Science 2021-12-17 Wen Zhang , Shumin Deng , Mingyang Chen , Liang Wang , Qiang Chen , Feiyu Xiong , Xiangwen Liu , Huajun Chen

Knowledge graph embeddings (KGE) apply machine learning methods on knowledge graphs (KGs) to provide non-classical reasoning capabilities based on similarities and analogies. The learned KG embeddings are typically used to answer queries by…

Artificial Intelligence · Computer Science 2025-01-28 Yuqicheng Zhu , Nico Potyka , Jiarong Pan , Bo Xiong , Yunjie He , Evgeny Kharlamov , Steffen Staab

Foundation models in language and vision have the ability to run inference on any textual and visual inputs thanks to the transferable representations such as a vocabulary of tokens in language. Knowledge graphs (KGs) have different entity…

Computation and Language · Computer Science 2024-04-11 Mikhail Galkin , Xinyu Yuan , Hesham Mostafa , Jian Tang , Zhaocheng Zhu

Convolutional Neural Networks have been a subject of great importance over the past decade and great strides have been made in their utility for producing state of the art performance in many computer vision problems. However, the behavior…

Computer Vision and Pattern Recognition · Computer Science 2017-08-04 Swami Sankaranarayanan , Arpit Jain , Ser Nam Lim

Large language models (LLMs) based on generative pre-trained Transformer have achieved remarkable performance on knowledge graph question-answering (KGQA) tasks. However, LLMs often produce ungrounded subgraph planning or reasoning results…

Computation and Language · Computer Science 2025-03-10 Mufan Xu , Kehai Chen , Xuefeng Bai , Muyun Yang , Tiejun Zhao , Min Zhang

Most knowledge graphs (KGs) are incomplete, which motivates one important research topic on automatically complementing knowledge graphs. However, evaluation of knowledge graph completion (KGC) models often ignores the incompleteness --…

Artificial Intelligence · Computer Science 2022-09-20 Haotong Yang , Zhouchen Lin , Muhan Zhang