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Generative model-based motion prediction techniques have recently realized predicting controlled human motions, such as predicting multiple upper human body motions with similar lower-body motions. However, to achieve this, the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Chunzhi Gu , Jun Yu , Chao Zhang

This thesis focuses on representation learning for sequence data over time or space, aiming to improve downstream sequence prediction tasks by using the learned representations. Supervised learning has been the most dominant approach for…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-02 Qingming Tang

We study pre-training representations for decision-making using video data, which is abundantly available for tasks such as game agents and software testing. Even though significant empirical advances have been made on this problem, a…

Machine Learning · Computer Science 2024-03-21 Dipendra Misra , Akanksha Saran , Tengyang Xie , Alex Lamb , John Langford

Self supervised representation learning has recently attracted a lot of research interest for both the audio and visual modalities. However, most works typically focus on a particular modality or feature alone and there has been very…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-21 Abhinav Shukla , Konstantinos Vougioukas , Pingchuan Ma , Stavros Petridis , Maja Pantic

Navigation through uncontrolled intersections is one of the key challenges for autonomous vehicles. Identifying the subtle differences in hidden traits of other drivers can bring significant benefits when navigating in such environments. We…

Robotics · Computer Science 2022-03-02 Shuijing Liu , Peixin Chang , Haonan Chen , Neeloy Chakraborty , Katherine Driggs-Campbell

Navigating complex indoor environments requires a deep understanding of the space the robotic agent is acting into to correctly inform the navigation process of the agent towards the goal location. In recent learning-based navigation…

Robotics · Computer Science 2023-10-05 Marco Rosano , Antonino Furnari , Luigi Gulino , Corrado Santoro , Giovanni Maria Farinella

How much does having visual priors about the world (e.g. the fact that the world is 3D) assist in learning to perform downstream motor tasks (e.g. navigating a complex environment)? What are the consequences of not utilizing such visual…

Computer Vision and Pattern Recognition · Computer Science 2019-12-25 Alexander Sax , Jeffrey O. Zhang , Bradley Emi , Amir Zamir , Silvio Savarese , Leonidas Guibas , Jitendra Malik

Deep learning typically requires vast numbers of training examples in order to be used successfully. Conversely, motion capture data is often expensive to generate, requiring specialist equipment, along with actors to generate the…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Connor Daly

Recent advancements in unsupervised feature learning have developed powerful latent representations of words. However, it is still not clear what makes one representation better than another and how we can learn the ideal representation.…

Machine Learning · Computer Science 2014-06-30 Bryan Perozzi , Rami Al-Rfou , Vivek Kulkarni , Steven Skiena

Video motion magnification techniques allow us to see small motions previously invisible to the naked eyes, such as those of vibrating airplane wings, or swaying buildings under the influence of the wind. Because the motion is small, the…

Computer Vision and Pattern Recognition · Computer Science 2019-02-18 Tae-Hyun Oh , Ronnachai Jaroensri , Changil Kim , Mohamed Elgharib , Frédo Durand , William T. Freeman , Wojciech Matusik

Devising intelligent agents able to live in an environment and learn by observing the surroundings is a longstanding goal of Artificial Intelligence. From a bare Machine Learning perspective, challenges arise when the agent is prevented…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Matteo Tiezzi , Simone Marullo , Lapo Faggi , Enrico Meloni , Alessandro Betti , Stefano Melacci

We address the problem of video representation learning without human-annotated labels. While previous efforts address the problem by designing novel self-supervised tasks using video data, the learned features are merely on a…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Jiangliu Wang , Jianbo Jiao , Linchao Bao , Shengfeng He , Yunhui Liu , Wei Liu

While neural networks for learning representation of multi-view data have been previously proposed as one of the state-of-the-art multi-view dimension reduction techniques, how to make the representation discriminative with only a small…

Machine Learning · Computer Science 2018-11-13 Vahid Noroozi , Sara Bahaadini , Lei Zheng , Sihong Xie , Weixiang Shao , Philip S. Yu

A key goal of unsupervised representation learning is "inverting" a data generating process to recover its latent properties. Existing work that provably achieves this goal relies on strong assumptions on relationships between the latent…

Machine Learning · Computer Science 2021-11-01 Kartik Ahuja , Jason Hartford , Yoshua Bengio

In the past five years we have observed the rise of incredibly well performing feed-forward neural networks trained supervisedly for vision related tasks. These models have achieved super-human performance on object recognition,…

Computer Vision and Pattern Recognition · Computer Science 2017-06-15 Alfredo Canziani , Eugenio Culurciello

Current state-of-the-art solutions for motion capture from a single camera are optimization driven: they optimize the parameters of a 3D human model so that its re-projection matches measurements in the video (e.g. person segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Hsiao-Yu Fish Tung , Hsiao-Wei Tung , Ersin Yumer , Katerina Fragkiadaki

Self-supervised learning of visual representations has been focusing on learning content features, which do not capture object motion or location, and focus on identifying and differentiating objects in images and videos. On the other hand,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Adrien Bardes , Jean Ponce , Yann LeCun

In this paper, we address self-supervised representation learning from human skeletons for action recognition. Previous methods, which usually learn feature presentations from a single reconstruction task, may come across the overfitting…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Lilang Lin , Sijie Song , Wenhan Yan , Jiaying Liu

Action recognition in videos has attracted a lot of attention in the past decade. In order to learn robust models, previous methods usually assume videos are trimmed as short sequences and require ground-truth annotations of each video…

Computer Vision and Pattern Recognition · Computer Science 2019-02-21 Xiao-Yu Zhang , Haichao Shi , Changsheng Li , Kai Zheng , Xiaobin Zhu , Lixin Duan

Despite the recent success of end-to-end learned representations, hand-crafted optical flow features are still widely used in video analysis tasks. To fill this gap, we propose TVNet, a novel end-to-end trainable neural network, to learn…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Lijie Fan , Wenbing Huang , Chuang Gan , Stefano Ermon , Boqing Gong , Junzhou Huang