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A novel Gromov-Wasserstein learning framework is proposed to jointly match (align) graphs and learn embedding vectors for the associated graph nodes. Using Gromov-Wasserstein discrepancy, we measure the dissimilarity between two graphs and…

Machine Learning · Computer Science 2019-05-08 Hongteng Xu , Dixin Luo , Hongyuan Zha , Lawrence Carin

We present a novel modularized end-to-end framework for legged reactive navigation in complex dynamic environments using a single light detection and ranging (LiDAR) sensor. The system comprises four simulation-trained modules: three…

Robotics · Computer Science 2025-12-11 Qihao Yuan , Ziyu Cao , Ming Cao , Kailai Li

Autonomous racing presents a complex environment requiring robust controllers capable of making rapid decisions under dynamic conditions. While traditional controllers based on tire models are reliable, they often demand extensive tuning or…

Robotics · Computer Science 2025-02-07 Edoardo Ghignone , Nicolas Baumann , Cheng Hu , Jonathan Wang , Lei Xie , Andrea Carron , Michele Magno

Maximum a posteriori (MAP) inference is a fundamental computational paradigm for statistical inference. In the setting of graphical models, MAP inference entails solving a combinatorial optimization problem to find the most likely…

Machine Learning · Computer Science 2020-03-03 Jonathan N. Lee , Aldo Pacchiano , Michael I. Jordan

Complex manipulation tasks require careful integration of symbolic reasoning and motion planning. This problem, commonly referred to as Task and Motion Planning (TAMP), is even more challenging if the workspace is non-static, e.g. due to…

Robotics · Computer Science 2021-08-31 Nicola Castaman , Enrico Pagello , Emanuele Menegatti , Alberto Pretto

Reinforcement learning with verifiable rewards (RLVR) has proven effective in eliciting complex reasoning in large language models (LLMs). However, standard RLVR training often leads to excessively verbose processes (in reasoning tasks) and…

Artificial Intelligence · Computer Science 2025-10-01 Gang Li , Yulei Qin , Xiaoyu Tan , Dingkang Yang , Yuchen Shi , Zihan Xu , Xiang Li , Xing Sun , Ke Li

Video understanding typically requires fine-tuning the large backbone when adapting to new domains. In this paper, we leverage the egocentric video foundation models (Ego-VFMs) based on video-language pre-training and propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Tz-Ying Wu , Kyle Min , Subarna Tripathi , Nuno Vasconcelos

Video stabilization is a longstanding computer vision problem, particularly pixel-level synthesis solutions for video stabilization which synthesize full frames add to the complexity of this task. These techniques aim to stabilize videos by…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Muhammad Kashif Ali , Eun Woo Im , Dongjin Kim , Tae Hyun Kim

Moving object detection and its associated background-foreground separation have been widely used in a lot of applications, including computer vision, transportation and surveillance. Due to the presence of the static background, a video…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Jing Qin , Ruilong Shen , Ruihan Zhu , Biyun Xie

Modern video summarization methods are based on deep neural networks that require a large amount of annotated data for training. However, existing datasets for video summarization are small-scale, easily leading to over-fitting of the deep…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Li Haopeng , Ke Qiuhong , Gong Mingming , Tom Drummond

In this paper, we teach machines to understand visuals and natural language by learning the mapping between sentences and noisy video snippets without explicit annotations. Firstly, we define a self-supervised learning framework that…

Computer Vision and Pattern Recognition · Computer Science 2021-01-12 Yujie Zhong , Linhai Xie , Sen Wang , Lucia Specia , Yishu Miao

We propose a machine-learning-based methodology for in-situ weather forecast postprocessing that is both spatially coherent and multivariate. Compared to previous work, our Flow MAtching Postprocessing (FMAP) better represents the…

Atmospheric and Oceanic Physics · Physics 2025-04-28 David Landry , Claire Monteleoni , Anastase Charantonis

Recovering temporally consistent 3D human body pose, shape and motion from a monocular video is a challenging task due to (self-)occlusions, poor lighting conditions, complex articulated body poses, depth ambiguity, and limited availability…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Sushovan Chanda , Amogh Tiwari , Lokender Tiwari , Brojeshwar Bhowmick , Avinash Sharma , Hrishav Barua

Videos contain rich spatio-temporal information. Traditional methods for extracting motion, used in tasks such as action recognition, often rely on visual contents rather than precise motion features. This phenomenon is referred to as…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Qixiang Chen , Lei Wang , Piotr Koniusz , Tom Gedeon

Video frame interpolation, which aims to synthesize non-exist intermediate frames in a video sequence, is an important research topic in computer vision. Existing video frame interpolation methods have achieved remarkable results under…

Computer Vision and Pattern Recognition · Computer Science 2021-12-03 Youjian Zhang , Chaoyue Wang , Dacheng Tao

Video generation models produce visually coherent content but struggle with tasks requiring spatial reasoning and multi-step planning. Reinforcement learning (RL) offers a path to improve generalization, but its effectiveness in video…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Ming Liu , Yunbei Zhang , Shilong Liu , Liwen Wang , Wensheng Zhang

The Multi-Agent Path Finding (MAPF) problem aims to find collision-free paths for multiple agents while optimizing objectives such as the sum of costs or makespan. MAPF has wide applications in domains like automated warehouses,…

Robotics · Computer Science 2025-12-01 Jingtian Yan , Shuai Zhou , Stephen F. Smith , Jiaoyang Li

Given a natural language query, video moment retrieval aims to localize the described temporal moment in an untrimmed video. A major challenge of this task is its heavy dependence on labor-intensive annotations for training. Unlike existing…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Peijun Bao , Chenqi Kong , Zihao Shao , Boon Poh Ng , Meng Hwa Er , Alex C. Kot

We propose a novel approach to the action segmentation task for long, untrimmed videos, based on solving an optimal transport problem. By encoding a temporal consistency prior into a Gromov-Wasserstein problem, we are able to decode a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Ming Xu , Stephen Gould

Different modalities hold considerable gaps in optimization trajectories, including speeds and paths, which lead to modality laziness and modality clash when jointly training multimodal models, resulting in insufficient and imbalanced…

Machine Learning · Computer Science 2025-06-17 Xiaoyu Ma , Hao Chen , Yongjian Deng