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Scene understanding is a critical problem in computer vision. In this paper, we propose a 3D point-based scene graph generation ($\mathbf{SGG_{point}}$) framework to effectively bridge perception and reasoning to achieve scene understanding…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Chaoyi Zhang , Jianhui Yu , Yang Song , Weidong Cai

Graph Neural Networks (GNNs) excel in node classification tasks but often assume homophily, where connected nodes share similar labels. This assumption does not hold in many real-world heterophilic graphs. Existing models for heterophilic…

Machine Learning · Computer Science 2025-10-10 Yumeng Wang , Zengyi Wo , Wenjun Wang , Xingcheng Fu , Minglai Shao

Graph Neural Networks (GNNs) have achieved remarkable performance in modeling graphs for various applications. However, most existing GNNs assume the graphs exhibit strong homophily in node labels, i.e., nodes with similar labels are…

Machine Learning · Computer Science 2023-02-20 Enyan Dai , Shijie Zhou , Zhimeng Guo , Suhang Wang

Machine Learning (ML) has been applied to enable many life-assisting appli-cations, such as abnormality detection and emdergency request for the soli-tary elderly. However, in most cases machine learning algorithms depend on the layout of…

Machine Learning · Computer Science 2019-12-13 Johan Medrano , Fuchun Joseph Lin

Semantic context surrounding a triplet $(h, r, t)$ is crucial for Knowledge Graph Completion (KGC), providing vital cues for prediction. However, traditional node-based message passing mechanisms, when applied to knowledge graphs, often…

Artificial Intelligence · Computer Science 2025-09-11 Siyuan Li , Yan Wen , Ruitong Liu , Te Sun , Ruihao Zhou , Jingyi Kang , Yunjia Wu

Graph representation learning based on graph neural networks (GNNs) can greatly improve the performance of downstream tasks, such as node and graph classification. However, the general GNN models do not aggregate node information in a…

Machine Learning · Computer Science 2020-07-30 Fei Ding , Xiaohong Zhang , Justin Sybrandt , Ilya Safro

Heterogeneous Graphs (HGs) effectively model complex relationships in the real world through multi-type nodes and edges. In recent years, inspired by self-supervised learning (SSL), contrastive learning (CL)-based Heterogeneous Graphs…

Machine Learning · Computer Science 2025-05-06 Yu Wang , Lei Sang , Yi Zhang , Yiwen Zhang , Xindong Wu

Panoptic Scene Graph Generation (PSG) parses objects and predicts their relationships (predicate) to connect human language and visual scenes. However, different language preferences of annotators and semantic overlaps between predicates…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Li Li , Wei Ji , Yiming Wu , Mengze Li , You Qin , Lina Wei , Roger Zimmermann

Recently, pretraining methods for the Graph Neural Networks (GNNs) have been successful at learning effective representations from unlabeled graph data. However, most of these methods rely on pairwise relations in the graph and do not…

Machine Learning · Computer Science 2023-11-21 Abdalgader Abubaker , Takanori Maehara , Madhav Nimishakavi , Vassilis Plachouras

Scene graph generation is an important visual understanding task with a broad range of vision applications. Despite recent tremendous progress, it remains challenging due to the intrinsic long-tailed class distribution and large intra-class…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Rongjie Li , Songyang Zhang , Bo Wan , Xuming He

There is a surge of interest in image scene graph generation (object, attribute and relationship detection) due to the need of building fine-grained image understanding models that go beyond object detection. Due to the lack of a good…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Xiaotian Han , Jianwei Yang , Houdong Hu , Lei Zhang , Jianfeng Gao , Pengchuan Zhang

Recently, increasing efforts have been focused on Weakly Supervised Scene Graph Generation (WSSGG). The mainstream solution for WSSGG typically follows the same pipeline: they first align text entities in the weak image-level supervisions…

Computer Vision and Pattern Recognition · Computer Science 2022-08-04 Xingchen Li , Long Chen , Wenbo Ma , Yi Yang , Jun Xiao

Scene graph generation has received growing attention with the advancements in image understanding tasks such as object detection, attributes and relationship prediction,~\etc. However, existing datasets are biased in terms of object and…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Jiuxiang Gu , Handong Zhao , Zhe Lin , Sheng Li , Jianfei Cai , Mingyang Ling

Radiology report generation (RRG) methods often lack sufficient medical knowledge to produce clinically accurate reports. The scene graph contains rich information to describe the objects in an image. We explore enriching the medical…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Jun Wang , Lixing Zhu , Abhir Bhalerao , Yulan He

While Open Set Semantic Mapping and 3D Semantic Scene Graphs (3DSSGs) are established paradigms in robotic perception, deploying them effectively to support high-level reasoning in large-scale, real-world environments remains a significant…

Robotics · Computer Science 2026-02-04 Martin Günther , Felix Igelbrink , Oscar Lima , Lennart Niecksch , Marian Renz , Martin Atzmueller

Graph neural networks (GNNs) provide powerful insights for brain neuroimaging technology from the view of graphical networks. However, most existing GNN-based models assume that the neuroimaging-produced brain connectome network is a…

Machine Learning · Computer Science 2022-09-30 Gen Shi , Yifan Zhu , Wenjin Liu , Quanming Yao , Xuesong Li

Heterogeneous graph neural networks (HGNNs) were proposed for representation learning on structural data with multiple types of nodes and edges. To deal with the performance degradation issue when HGNNs become deep, researchers combine…

Machine Learning · Computer Science 2023-11-27 Xinyu Fu , Irwin King

Multi-graph learning is crucial for extracting meaningful signals from collections of heterogeneous graphs. However, effectively integrating information across graphs with differing topologies, scales, and semantics, often in the absence of…

Machine Learning · Computer Science 2026-02-02 Zahra Moslemi , Ziyi Liang , Norbert Fortin , Babak Shahbaba

Scene Graph Generation (SGG) represents objects and their interactions with a graph structure. Recently, many works are devoted to solving the imbalanced problem in SGG. However, underestimating the head predicates in the whole training…

Computer Vision and Pattern Recognition · Computer Science 2022-06-24 Chaofan Zheng , Xinyu Lyu , Yuyu Guo , Pengpeng Zeng , Jingkuan Song , Lianli Gao

In this study, we focus on the graph representation learning (a.k.a. network embedding) in attributed graphs. Different from existing embedding methods that treat the incorporation of graph structure and semantic as the simple combination…

Social and Information Networks · Computer Science 2023-05-12 Meng Qin