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Graph models are widely used to analyse diffusion processes embedded in social contacts and to develop applications. A range of graph models are available to replicate the underlying social structures and dynamics realistically. However,…

社会与信息网络 · 计算机科学 2018-07-27 Md Shahzamal , Raja Jurdak , Bernard Mans , Frank de Hoog

Collaborative filtering is a critical technique in recommender systems. It has been increasingly viewed as a conditional generative task for user feedback data, where newly developed diffusion model shows great potential. However, existing…

信息检索 · 计算机科学 2024-04-25 Yunqin Zhu , Chao Wang , Qi Zhang , Hui Xiong

Diffusion models achieve state-of-the-art performance in generating realistic objects and have been successfully applied to images, text, and videos. Recent work has shown that diffusion can also be defined on graphs, including graph…

机器学习 · 计算机科学 2023-02-09 Alex M. Tseng , Nathaniel Diamant , Tommaso Biancalani , Gabriele Scalia

Modeling and generating human reactions poses a significant challenge with broad applications for computer vision and human-computer interaction. Existing methods either treat multiple individuals as a single entity, directly generating…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Xiyan Xu , Sirui Xu , Yu-Xiong Wang , Liang-Yan Gui

Recent work has demonstrated the significant potential of denoising diffusion models for generating human motion, including text-to-motion capabilities. However, these methods are restricted by the paucity of annotated motion data, a focus…

计算机视觉与模式识别 · 计算机科学 2023-08-31 Yonatan Shafir , Guy Tevet , Roy Kapon , Amit H. Bermano

In the realm of generative models for graphs, extensive research has been conducted. However, most existing methods struggle with large graphs due to the complexity of representing the entire joint distribution across all node pairs and…

社会与信息网络 · 计算机科学 2024-05-15 Andreas Bergmeister , Karolis Martinkus , Nathanaël Perraudin , Roger Wattenhofer

Recent methods using diffusion models have made significant progress in human image generation with various control signals such as pose priors. However, existing efforts are still struggling to generate high-quality images with consistent…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Xiangchen Yin , Donglin Di , Lei Fan , Hao Li , Wei Chen , Xiaofei Gou , Yang Song , Xiao Sun , Xun Yang

We introduce the Multi-Motion Discrete Diffusion Models (M2D2M), a novel approach for human motion generation from textual descriptions of multiple actions, utilizing the strengths of discrete diffusion models. This approach adeptly…

计算机视觉与模式识别 · 计算机科学 2024-07-22 Seunggeun Chi , Hyung-gun Chi , Hengbo Ma , Nakul Agarwal , Faizan Siddiqui , Karthik Ramani , Kwonjoon Lee

DCOP algorithms usually rely on interaction graphs to operate. In open and dynamic environments, such methods need to address how this interaction graph is generated and maintained among agents. Existing methods require reconstructing the…

人工智能 · 计算机科学 2022-12-08 Brighter Agyemang , Fenghui Ren , Jun Yan

Human motion generation aims to produce plausible human motion sequences according to various conditional inputs, such as text or audio. Despite the feasibility of existing methods in generating motion based on short prompts and simple…

多媒体 · 计算机科学 2024-11-12 Bo Han , Hao Peng , Minjing Dong , Yi Ren , Yixuan Shen , Chang Xu

Recently, diffusion-based recommendation methods have achieved impressive results. However, existing approaches predominantly treat each user's historical interactions as independent training samples, overlooking the potential of…

社会与信息网络 · 计算机科学 2025-04-08 Xuan Zhang , Xiang Deng , Hongxing Yuan , Chunyu Wei , Yushun Fan

This work presents a methodology for modeling and predicting human behavior in settings with N humans interacting in highly multimodal scenarios (i.e. where there are many possible highly-distinct futures). A motivating example includes…

机器人学 · 计算机科学 2018-07-27 Boris Ivanovic , Edward Schmerling , Karen Leung , Marco Pavone

Diffusion-based human animation aims to animate a human character based on a source human image as well as driving signals such as a sequence of poses. Leveraging the generative capacity of diffusion model, existing approaches are able to…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Fa-Ting Hong , Zhan Xu , Haiyang Liu , Qinjie Lin , Luchuan Song , Zhixin Shu , Yang Zhou , Duygu Ceylan , Dan Xu

Graph Convolutional Networks (GCN) have been recently employed as core component in the construction of recommender system algorithms, interpreting user-item interactions as the edges of a bipartite graph. However, in the absence of side…

信息检索 · 计算机科学 2023-03-29 Edoardo D'Amico , Khalil Muhammad , Elias Tragos , Barry Smyth , Neil Hurley , Aonghus Lawlor

Factorization machine (FM) is a prevalent approach to modeling pairwise (second-order) feature interactions when dealing with high-dimensional sparse data. However, on the one hand, FM fails to capture higher-order feature interactions…

机器学习 · 计算机科学 2025-02-24 Shu Wu , Zekun Li , Yunyue Su , Zeyu Cui , Xiaoyu Zhang , Liang Wang

We address the problem of generating realistic 3D motions of humans interacting with objects in a scene. Our key idea is to create a neural interaction field attached to a specific object, which outputs the distance to the valid interaction…

计算机视觉与模式识别 · 计算机科学 2023-07-17 Nilesh Kulkarni , Davis Rempe , Kyle Genova , Abhijit Kundu , Justin Johnson , David Fouhey , Leonidas Guibas

Co-speech gestures, if presented in the lively form of videos, can achieve superior visual effects in human-machine interaction. While previous works mostly generate structural human skeletons, resulting in the omission of appearance…

计算机视觉与模式识别 · 计算机科学 2024-04-03 Xu He , Qiaochu Huang , Zhensong Zhang , Zhiwei Lin , Zhiyong Wu , Sicheng Yang , Minglei Li , Zhiyi Chen , Songcen Xu , Xiaofei Wu

To coordinate actions with an interaction partner requires a constant exchange of sensorimotor signals. Humans acquire these skills in infancy and early childhood mostly by imitation learning and active engagement with a skilled partner.…

机器学习 · 计算机科学 2019-10-15 Judith Bütepage , Ali Ghadirzadeh , Özge Öztimur Karadag , Mårten Björkman , Danica Kragic

Random intersection graphs containing an underlying community structure are a popular choice for modelling real-world networks. Given the group memberships, the classical random intersection graph is obtained by connecting individuals when…

概率论 · 数学 2023-08-31 Marta Milewska , Remco van der Hofstad , Bert Zwart

Molecule generation is a very important practical problem, with uses in drug discovery and material design, and AI methods promise to provide useful solutions. However, existing methods for molecule generation focus either on 2D graph…

机器学习 · 计算机科学 2024-02-07 Chenqing Hua , Sitao Luan , Minkai Xu , Rex Ying , Jie Fu , Stefano Ermon , Doina Precup