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Knowledge graphs (KGs) serve as a vital backbone for a wide range of AI applications, including natural language understanding and recommendation. A promising yet underexplored direction is numerical reasoning over KGs, which involves…

人工智能 · 计算机科学 2026-04-21 Ming Yin , Zongsheng Cao , Qiqing Xia , Chenyang Tu , Neng Gao

Knowledge Graphs (KGs) are fundamental resources in knowledge-intensive tasks in NLP. Due to the limitation of manually creating KGs, KG Completion (KGC) has an important role in automatically completing KGs by scoring their links with KG…

计算与语言 · 计算机科学 2024-07-08 Xincan Feng , Hidetaka Kamigaito , Katsuhiko Hayashi , Taro Watanabe

The rise of graph-structured data has driven major advances in Graph Machine Learning (GML), where graph embeddings (GEs) map features from Knowledge Graphs (KGs) into vector spaces, enabling tasks like node classification and link…

机器学习 · 计算机科学 2026-01-27 Rosario Napoli , Gabriele Morabito , Antonio Celesti , Massimo Villari , Maria Fazio

Graph Neural Networks (GNNs) show promising results for graph tasks. However, existing GNNs' generalization ability will degrade when there exist distribution shifts between testing and training graph data. The cardinal impetus underlying…

机器学习 · 计算机科学 2023-12-21 Zhengyu Chen , Teng Xiao , Kun Kuang , Zheqi Lv , Min Zhang , Jinluan Yang , Chengqiang Lu , Hongxia Yang , Fei Wu

Large language models often retain unintended content, prompting growing interest in knowledge unlearning. Recent approaches emphasize localized unlearning, restricting parameter updates to specific regions in an effort to remove target…

计算与语言 · 计算机科学 2026-02-12 Hwiyeong Lee , Uiji Hwang , Hyelim Lim , Taeuk Kim

Driven by privacy protection laws and regulations, unlearning in Large Language Models (LLMs) is gaining increasing attention. However, current research often neglects the interpretability of the unlearning process, particularly concerning…

机器学习 · 计算机科学 2025-04-10 Xiaohua Feng , Yuyuan Li , Chengye Wang , Junlin Liu , Li Zhang , Chaochao Chen

Large Language Models (LLMs) inevitably acquire harmful information during training on massive datasets. LLM unlearning aims to eliminate the influence of such harmful information while maintaining the model's overall performance. Existing…

计算与语言 · 计算机科学 2025-03-07 Wenyu Wang , Mengqi Zhang , Xiaotian Ye , Zhaochun Ren , Zhumin Chen , Pengjie Ren

Large Language Models (LLMs) have exhibited impressive proficiency in various natural language processing (NLP) tasks, which involve increasingly complex reasoning. Knowledge reasoning, a primary type of reasoning, aims at deriving new…

计算与语言 · 计算机科学 2024-07-02 Yifei Zhang , Xintao Wang , Jiaqing Liang , Sirui Xia , Lida Chen , Yanghua Xiao

Graph Neural Networks (GNN) exhibit superior performance in graph representation learning, but their inference cost can be high, due to an aggregation operation that can require a memory fetch for a very large number of nodes. This…

机器学习 · 计算机科学 2025-03-18 Yaochen Hu , Mai Zeng , Ge Zhang , Pavel Rumiantsev , Liheng Ma , Yingxue Zhang , Mark Coates

Large Language Models (LLMs) increasingly mediate access to scholarly information, yet their outputs are typically evaluated at the level of individual statements rather than knowledge structure. This paper introduces structural…

社会与信息网络 · 计算机科学 2026-03-03 Moses Boudourides

Post-hoc unlearning has emerged as a practical mechanism for removing undesirable concepts from large text-to-image diffusion models. However, prior work primarily evaluates unlearning through erasure success; its impact on broader…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Arian Komaei Koma , Seyed Amir Kasaei , Ali Aghayari , AmirMahdi Sadeghzadeh , Mohammad Hossein Rohban

Graph learning on molecules makes use of information from both the molecular structure and the features attached to that structure. Much work has been conducted on biasing either towards structure or features, with the aim that bias…

机器学习 · 计算机科学 2025-02-03 Alex O. Davies , Nirav S. Ajmeri , Telmo de Menezes e Silva Filho

Graph neural networks (GNNs), which propagate the node features through the edges and learn how to transform the aggregated features under label supervision, have achieved great success in supervised feature extraction for both node-level…

机器学习 · 统计学 2022-11-01 Yilin He , Chaojie Wang , Hao Zhang , Bo Chen , Mingyuan Zhou

Out-of-distribution (OOD) generalization has emerged as a significant challenge in graph recommender systems. Traditional graph neural network algorithms often fail because they learn spurious environmental correlations instead of stable…

信息检索 · 计算机科学 2025-11-25 Jiahao Liang , Haoran Yang , Xiangyu Zhao , Zhiwen Yu , Mianjie Li , Chuan Shi , Kaixiang Yang

Graph Neural Networks (GNNs) are de facto solutions to structural data learning. However, it is susceptible to low-quality and unreliable structure, which has been a norm rather than an exception in real-world graphs. Existing graph…

机器学习 · 计算机科学 2023-03-20 Dongcheng Zou , Hao Peng , Xiang Huang , Renyu Yang , Jianxin Li , Jia Wu , Chunyang Liu , Philip S. Yu

With the passage of the Right to Be Forgotten (RTBF) regulations and the scaling up of language model training datasets, research on model unlearning in large language models (LLMs) has become more crucial. Before the era of LLMs, machine…

计算与语言 · 计算机科学 2024-06-05 Bichen Wang , Yuzhe Zi , Yixin Sun , Yanyan Zhao , Bing Qin

Machine learning frameworks such as graph neural networks typically rely on a given, fixed graph to exploit relational inductive biases and thus effectively learn from network data. However, when said graphs are (partially) unobserved,…

机器学习 · 计算机科学 2022-05-20 Max Wasserman , Saurabh Sihag , Gonzalo Mateos , Alejandro Ribeiro

Graph Edit Distance (GED) is a widely used measure of graph similarity, valued for its flexibility in encoding domain knowledge through operation costs. However, existing learning-based approximation methods follow a modeling paradigm that…

机器学习 · 计算机科学 2026-02-26 Zhouyang Liu , Ning Liu , Yixin Chen , Jiezhong He , Shuai Ma , Dongsheng Li

Class imbalance is pervasive in real-world graph datasets, where the majority of annotated nodes belong to a small set of classes (majority classes), leaving many other classes (minority classes) with only a handful of labeled nodes. Graph…

机器学习 · 计算机科学 2024-12-31 Abdullah Alchihabi , Hao Yan , Yuhong Guo

Despite Graph Neural Networks (GNNs) have achieved prominent success in many graph-based learning problem, such as credit risk assessment in financial networks and fake news detection in social networks. However, the trained GNNs still make…

机器学习 · 计算机科学 2023-05-26 Zirui Liu , Zhimeng Jiang , Shaochen Zhong , Kaixiong Zhou , Li Li , Rui Chen , Soo-Hyun Choi , Xia Hu