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In this article, we propose a novel navigation framework that leverages a two layered graph representation of the environment for efficient large-scale exploration, while it integrates a novel uncertainty awareness scheme to handle dynamic…

机器人学 · 计算机科学 2024-02-07 Akash Patel , Mario A V Saucedo , Christoforos Kanellakis , George Nikolakopoulos

Despite the huge progress in scene graph generation in recent years, its long-tail distribution in object relationships remains a challenging and pestering issue. Existing methods largely rely on either external knowledge or statistical…

计算机视觉与模式识别 · 计算机科学 2020-06-16 Tao He , Lianli Gao , Jingkuan Song , Jianfei Cai , Yuan-Fang Li

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…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Chaoyi Zhang , Jianhui Yu , Yang Song , Weidong Cai

Diffusion models excel in image generation but lack detailed semantic control using text prompts. Additional techniques have been developed to address this limitation. However, conditioning diffusion models solely on text-based descriptions…

计算机视觉与模式识别 · 计算机科学 2023-10-17 Frank Fundel

Scene Graph Generation (SGG) remains a challenging visual understanding task due to its compositional property. Most previous works adopt a bottom-up, two-stage or point-based, one-stage approach, which often suffers from high time…

计算机视觉与模式识别 · 计算机科学 2024-01-24 Rongjie Li , Songyang Zhang , Xuming He

We present a novel bipartite graph reasoning Generative Adversarial Network (BiGraphGAN) for two challenging tasks: person pose and facial image synthesis. The proposed graph generator consists of two novel blocks that aim to model the…

计算机视觉与模式识别 · 计算机科学 2022-11-15 Hao Tang , Ling Shao , Philip H. S. Torr , Nicu Sebe

Graph learning is often a necessary step in processing or representing structured data, when the underlying graph is not given explicitly. Graph learning is generally performed centrally with a full knowledge of the graph signals, namely…

信号处理 · 电气工程与系统科学 2021-12-14 Isabela Cunha Maia Nobre , Mireille El Gheche , Pascal Frossard

Scene understanding plays a critical role in enabling intelligence and autonomy in robotic systems. Traditional approaches often face challenges, including occlusions, ambiguous boundaries, and the inability to adapt attention based on…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Guodong Sun , Junjie Liu , Gaoyang Zhang , Bo Wu , Yang Zhang

Message passing neural networks have recently evolved into a state-of-the-art approach to representation learning on graphs. Existing methods perform synchronous message passing along all edges in multiple subsequent rounds and consequently…

机器学习 · 计算机科学 2020-12-21 Julian Busch , Jiaxing Pi , Thomas Seidl

Graph generation is a critical task in numerous domains, including molecular design and social network analysis, due to its ability to model complex relationships and structured data. While most modern graph generative models utilize…

机器学习 · 计算机科学 2025-06-04 Xiaohui Chen , Yinkai Wang , Jiaxing He , Yuanqi Du , Soha Hassoun , Xiaolin Xu , Li-Ping Liu

Graph generation generally aims to create new graphs that closely align with a specific graph distribution. Existing works often implicitly capture this distribution through the optimization of generators, potentially overlooking the…

机器学习 · 计算机科学 2024-07-19 Song Wang , Zhen Tan , Xinyu Zhao , Tianlong Chen , Huan Liu , Jundong Li

How can we effectively and efficiently learn node representations in signed bipartite graphs? A signed bipartite graph is a graph consisting of two nodes sets where nodes of different types are positively or negative connected, and it has…

机器学习 · 计算机科学 2024-12-30 Gyeongmin Gu , Minseo Jeon , Hyun-Je Song , Jinhong Jung

Graph neural networks (GNNs) have exhibited exceptional efficacy in a diverse array of applications. However, the sheer size of large-scale graphs presents a significant challenge to real-time inference with GNNs. Although existing Scalable…

机器学习 · 计算机科学 2023-12-13 Xinyi Gao , Wentao Zhang , Junliang Yu , Yingxia Shao , Quoc Viet Hung Nguyen , Bin Cui , Hongzhi Yin

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…

机器学习 · 计算机科学 2023-02-20 Enyan Dai , Shijie Zhou , Zhimeng Guo , Suhang Wang

Most real-world graphs exhibit a hierarchical structure, which is often overlooked by existing graph generation methods. To address this limitation, we propose a novel graph generative network that captures the hierarchical nature of graphs…

机器学习 · 计算机科学 2026-01-01 Mahdi Karami

Biphasic face photo-sketch synthesis has significant practical value in wide-ranging fields such as digital entertainment and law enforcement. Previous approaches directly generate the photo-sketch in a global view, they always suffer from…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Xingqun Qi , Muyi Sun , Zijian Wang , Jiaming Liu , Qi Li , Fang Zhao , Shanghang Zhang , Caifeng Shan

A graph neural network (GNN) for image understanding based on multiple cues is proposed in this paper. Compared to traditional feature and decision fusion approaches that neglect the fact that features can interact and exchange information,…

计算机视觉与模式识别 · 计算机科学 2020-03-02 Xin Guo , Luisa F. Polania , Bin Zhu , Charles Boncelet , Kenneth E. Barner

A fundamental computation for statistical inference and accurate decision-making is to compute the marginal probabilities or most probable states of task-relevant variables. Probabilistic graphical models can efficiently represent the…

机器学习 · 计算机科学 2019-06-28 KiJung Yoon , Renjie Liao , Yuwen Xiong , Lisa Zhang , Ethan Fetaya , Raquel Urtasun , Richard Zemel , Xaq Pitkow

Structure aware graph generation aims to generate graphs that satisfy given topological properties. It has applications in domains such as drug discovery, social network modeling, and knowledge graph construction. Unlike existing methods…

人工智能 · 计算机科学 2026-05-05 Nidhi Vakil , Hadi Amiri

Along with generative AI, interest in scene graph generation (SGG), which comprehensively captures the relationships and interactions between objects in an image and creates a structured graph-based representation, has significantly…

计算机视觉与模式识别 · 计算机科学 2023-11-03 Hyeongjin Kim , Sangwon Kim , Jong Taek Lee , Byoung Chul Ko