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Advancements in technologies related to working with omics data require novel computation methods to fully leverage information and help develop a better understanding of human diseases. This paper studies the effects of introducing graph…

Genomics · Quantitative Biology 2023-10-17 Nishant Rajadhyaksha , Aarushi Chitkara

Human-curated knowledge graphs provide critical supportive information to various natural language processing tasks, but these graphs are usually incomplete, urging auto-completion of them. Prevalent graph embedding approaches, e.g.,…

Computation and Language · Computer Science 2021-02-25 Bo Wang , Tao Shen , Guodong Long , Tianyi Zhou , Yi Chang

Recent advancements in Graph Contrastive Learning (GCL) have demonstrated remarkable effectiveness in improving graph representations. However, relying on predefined augmentations (e.g., node dropping, edge perturbation, attribute masking)…

Machine Learning · Computer Science 2025-02-27 Khaled Mohammed Saifuddin , Shihao Ji , Esra Akbas

Recent advances in knowledge representation learning (KRL) highlight the urgent necessity to unify symbolic knowledge graphs (KGs) with language models (LMs) for richer semantic understanding. However, existing approaches typically…

Computation and Language · Computer Science 2025-06-05 Zirui Chen , Xin Wang , Zhao Li , Wenbin Guo , Dongxiao He

Recently, graph neural networks (GNNs) have been shown powerful capacity at modeling structural data. However, when adapted to downstream tasks, it usually requires abundant task-specific labeled data, which can be extremely scarce in…

Machine Learning · Computer Science 2022-03-04 Yupeng Hou , Binbin Hu , Wayne Xin Zhao , Zhiqiang Zhang , Jun Zhou , Ji-Rong Wen

Pre-trained sequence-to-sequence language models have led to widespread success in many natural language generation tasks. However, there has been relatively less work on analyzing their ability to generate structured outputs such as…

Computation and Language · Computer Science 2022-04-12 Swarnadeep Saha , Prateek Yadav , Mohit Bansal

Constructing domain-specific knowledge graphs from unstructured text remains challenging due to heterogeneous entity mentions, long-tail relation distributions, and the absence of standardized schemas. We present LEC-KG, a bidirectional…

Computation and Language · Computer Science 2026-03-02 Yikai Zeng , Yingchao Piao , Changhua Pei , Jianhui Li

Knowledge graph completion aims to address the problem of extending a KG with missing triples. In this paper, we provide an approach GenKGC, which converts knowledge graph completion to sequence-to-sequence generation task with the…

Computation and Language · Computer Science 2023-03-15 Xin Xie , Ningyu Zhang , Zhoubo Li , Shumin Deng , Hui Chen , Feiyu Xiong , Mosha Chen , Huajun Chen

Large language models (LLMs) based Multilingual Knowledge Graph Completion (MKGC) aim to predict missing facts by leveraging LLMs' multilingual understanding capabilities, improving the completeness of multilingual knowledge graphs (KGs).…

Computation and Language · Computer Science 2025-10-10 Cunli Mao , Xiaofei Gao , Ran Song , Shizhu He , Shengxiang Gao , Kang Liu , Zhengtao Yu

Using Large Language Models (LLMs) to process graph-structured data is an active research area, yet current state-of-the-art approaches typically rely on multi-step pipelines with Graph Neural Network (GNN) encoders that compress rich…

Machine Learning · Computer Science 2026-05-12 Dario Vajda

Causal discovery aims to estimate causal structures among variables based on observational data. Large Language Models (LLMs) offer a fresh perspective to tackle the causal discovery problem by reasoning on the metadata associated with…

Computation and Language · Computer Science 2024-07-31 Yuni Susanti , Michael Färber

Large language models appear to learn facts from the large text corpora they are trained on. Such facts are encoded implicitly within their many parameters, making it difficult to verify or manipulate what knowledge has been learned.…

Computation and Language · Computer Science 2022-10-27 Yifan Hou , Wenxiang Jiao , Meizhen Liu , Carl Allen , Zhaopeng Tu , Mrinmaya Sachan

Large Language Models (LLMs) adapted via contrastive learning excel in general representation learning but struggle in vertical domains like chemistry and law, primarily due to a lack of domain-specific knowledge. This work identifies a…

Information Retrieval · Computer Science 2026-01-19 Xiaoyu Liang , Yuchen Peng , Jiale Luo , Wenhao Wang , Haoji Hu , Xincheng Zhou

The recent emergence of contrastive learning approaches facilitates the application on graph representation learning (GRL), introducing graph contrastive learning (GCL) into the literature. These methods contrast semantically similar and…

Machine Learning · Computer Science 2022-06-03 Ganqu Cui , Yufeng Du , Cheng Yang , Jie Zhou , Liang Xu , Xing Zhou , Xingyi Cheng , Zhiyuan Liu

Knowledge graphs (KGs) play a pivotal role in knowledge-intensive tasks across specialized domains, where the acquisition of precise and dependable knowledge is crucial. However, existing KG construction methods heavily rely on human…

Artificial Intelligence · Computer Science 2024-10-07 Hanzhu Chen , Xu Shen , Qitan Lv , Jie Wang , Xiaoqi Ni , Jieping Ye

E-learning environments are increasingly harnessing large language models (LLMs) like GPT-3.5 and GPT-4 for tailored educational support. This study introduces an approach that integrates dynamic knowledge graphs with LLMs to offer nuanced…

Artificial Intelligence · Computer Science 2024-12-06 Patrick Ocheja , Brendan Flanagan , Yiling Dai , Hiroaki Ogata

Graph contrastive learning (GCL) has become a powerful tool for learning graph data, but its scalability remains a significant challenge. In this work, we propose a simple yet effective training framework called Structural Compression…

Machine Learning · Computer Science 2024-05-10 Shengzhong Zhang , Wenjie Yang , Xinyuan Cao , Hongwei Zhang , Zengfeng Huang

Knowledge graph completion (KGC) aims to infer missing knowledge triples based on known facts in a knowledge graph. Current KGC research mostly follows an entity ranking protocol, wherein the effectiveness is measured by the predicted rank…

Computation and Language · Computer Science 2022-05-16 Ying Zhou , Xuanang Chen , Ben He , Zheng Ye , Le Sun

Multilingual knowledge graph (KG) embeddings provide latent semantic representations of entities and structured knowledge with cross-lingual inferences, which benefit various knowledge-driven cross-lingual NLP tasks. However, precisely…

Artificial Intelligence · Computer Science 2018-06-19 Muhao Chen , Yingtao Tian , Kai-Wei Chang , Steven Skiena , Carlo Zaniolo

Pre-training Graph Neural Networks (GNN) via self-supervised contrastive learning has recently drawn lots of attention. However, most existing works focus on node-level contrastive learning, which cannot capture global graph structure. The…

Machine Learning · Computer Science 2021-04-19 Shichang Zhang , Ziniu Hu , Arjun Subramonian , Yizhou Sun