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Large Language Models (LLMs) have shown promising results on various language and vision tasks. Recently, there has been growing interest in applying LLMs to graph-based tasks, particularly on Text-Attributed Graphs (TAGs). However, most…

Machine Learning · Computer Science 2024-06-10 Zhongmou He , Jing Zhu , Shengyi Qian , Joyce Chai , Danai Koutra

Knowledge Graphs are increasingly becoming popular for a variety of downstream tasks like Question Answering and Information Retrieval. However, the Knowledge Graphs are often incomplete, thus leading to poor performance. As a result, there…

Computation and Language · Computer Science 2020-07-27 Siddhant Arora

Teaching large language models (LLMs) to use tools is crucial for improving their problem-solving abilities and expanding their applications. However, effectively using tools is challenging because it requires a deep understanding of tool…

Machine Learning · Computer Science 2025-06-27 Jingwei Wang , Zai Zhang , Hao Qian , Chunjing Gan , Binbin Hu , Ziqi Liu , Zhiqiang Zhang , Jun Zhou , Bin Shi , Bo Dong

Causal networks are useful in a wide variety of applications, from medical diagnosis to root-cause analysis in manufacturing. In practice, however, causal networks are often incomplete with missing causal relations. This paper presents a…

Artificial Intelligence · Computer Science 2024-07-15 Utkarshani Jaimini , Cory Henson , Amit P. Sheth

Knowledge Graph Completion has been increasingly adopted as a useful method for helping address several tasks in biomedical research, such as drug repurposing or drug-target identification. To that end, a variety of datasets and Knowledge…

Machine Learning · Computer Science 2025-11-07 Alberto Cattaneo , Stephen Bonner , Thomas Martynec , Edward Morrissey , Carlo Luschi , Ian P Barrett , Daniel Justus

We have created a knowledge graph based on major data sources used in ecotoxicological risk assessment. We have applied this knowledge graph to an important task in risk assessment, namely chemical effect prediction. We have evaluated nine…

Artificial Intelligence · Computer Science 2022-03-31 Erik B. Myklebust , Ernesto Jiménez-Ruiz , Jiaoyan Chen , Raoul Wolf , Knut Erik Tollefsen

The paper utilizes the graph embeddings generated for entities of a large biomedical database to perform link prediction to capture various new relationships among different entities. A novel node similarity measure is proposed that…

Information Retrieval · Computer Science 2021-11-01 Prakhar Gurawa , Matthias Nickles

Knowledge Graph embedding provides a versatile technique for representing knowledge. These techniques can be used in a variety of applications such as completion of knowledge graph to predict missing information, recommender systems,…

Information Retrieval · Computer Science 2021-07-19 Shivani Choudhary , Tarun Luthra , Ashima Mittal , Rajat Singh

Knowledge graphs store facts using relations between two entities. In this work, we address the question of link prediction in knowledge hypergraphs where relations are defined on any number of entities. While techniques exist (such as…

Machine Learning · Computer Science 2020-07-16 Bahare Fatemi , Perouz Taslakian , David Vazquez , David Poole

In a real-world setting, visual recognition systems can be brought to make predictions for images belonging to previously unknown class labels. In order to make semantically meaningful predictions for such inputs, we propose a two-step…

Machine Learning · Computer Science 2017-08-29 Vincent P. A. Lonij , Ambrish Rawat , Maria-Irina Nicolae

Knowledge graphs are graphical representations of large databases of facts, which typically suffer from incompleteness. Inferring missing relations (links) between entities (nodes) is the task of link prediction. A recent state-of-the-art…

Machine Learning · Computer Science 2019-09-12 Ivana Balažević , Carl Allen , Timothy M. Hospedales

Knowledge graph completion (a.k.a.~link prediction), i.e.,~the task of inferring missing information from knowledge graphs, is a widely used task in many applications, such as product recommendation and question answering. The…

Artificial Intelligence · Computer Science 2022-07-05 Zoi Kaoudi , Abelardo Carlos Martinez Lorenzo , Volker Markl

In this paper we introduce the notion of Demand-Weighted Completeness, allowing estimation of the completeness of a knowledge base with respect to how it is used. Defining an entity by its classes, we employ usage data to predict the…

Artificial Intelligence · Computer Science 2018-05-01 Andrew Hopkinson , Amit Gurdasani , Dave Palfrey , Arpit Mittal

Knowledge graphs have proven to be effective for modeling entities and their relationships through the use of ontologies. The recent emergence in interest for using knowledge graphs as a form of information modeling has led to their…

Artificial Intelligence · Computer Science 2023-07-21 Ngoc Luyen Le , Marie-Hélène Abel , Philippe Gouspillou

The task of multi-hop link prediction within knowledge graphs (KGs) stands as a challenge in the field of knowledge graph analysis, as it requires the model to reason through and understand all intermediate connections before making a…

Computation and Language · Computer Science 2025-06-17 Dong Shu , Tianle Chen , Mingyu Jin , Chong Zhang , Mengnan Du , Yongfeng Zhang

Knowledge graph completion (KGC) aims to discover missing relations of query entities. Current text-based models utilize the entity name and description to infer the tail entity given the head entity and a certain relation. Existing…

Computation and Language · Computer Science 2023-10-20 Irene Li , Boming Yang

Complex node interactions are common in knowledge graphs, and these interactions also contain rich knowledge information. However, traditional methods usually treat a triple as a training unit during the knowledge representation learning…

Computation and Language · Computer Science 2021-10-01 Bin He , Di Zhou , Jinghui Xiao , Xin jiang , Qun Liu , Nicholas Jing Yuan , Tong Xu

We study the problem of learning representations of entities and relations in knowledge graphs for predicting missing links. The success of such a task heavily relies on the ability of modeling and inferring the patterns of (or between) the…

Machine Learning · Computer Science 2019-02-28 Zhiqing Sun , Zhi-Hong Deng , Jian-Yun Nie , Jian Tang

Knowledge graphs have emerged as an important model for studying complex multi-relational data. This has given rise to the construction of numerous large scale but incomplete knowledge graphs encoding information extracted from various…

Machine Learning · Computer Science 2018-07-24 Rakshit Trivedi , Bunyamin Sisman , Jun Ma , Christos Faloutsos , Hongyuan Zha , Xin Luna Dong

Large language models (LLMs) have demonstrated remarkable success across a wide range of tasks; however, they still encounter challenges in reasoning tasks that require understanding and inferring relationships between distinct pieces of…

Computation and Language · Computer Science 2025-01-15 Haoyu Han , Yaochen Xie , Hui Liu , Xianfeng Tang , Sreyashi Nag , William Headden , Hui Liu , Yang Li , Chen Luo , Shuiwang Ji , Qi He , Jiliang Tang