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Time series are often complex and rich in information but sparsely labeled and therefore challenging to model. In this paper, we propose a self-supervised framework for learning generalizable representations for non-stationary time series.…

机器学习 · 计算机科学 2021-06-03 Sana Tonekaboni , Danny Eytan , Anna Goldenberg

Unpaired video-to-video translation aims to translate videos between a source and a target domain without the need of paired training data, making it more feasible for real applications. Unfortunately, the translated videos generally suffer…

计算机视觉与模式识别 · 计算机科学 2022-12-22 Kaihong Wang , Kumar Akash , Teruhisa Misu

Temporal cues in videos provide important information for recognizing actions accurately. However, temporal-discriminative features can hardly be extracted without using an annotated large-scale video action dataset for training. This paper…

计算机视觉与模式识别 · 计算机科学 2020-08-06 Jinpeng Wang , Yiqi Lin , Andy J. Ma , Pong C. Yuen

(Very early draft)Traditional supervised learning keeps pushing convolution neural network(CNN) achieving state-of-art performance. However, lack of large-scale annotation data is always a big problem due to the high cost of it, even…

计算机视觉与模式识别 · 计算机科学 2019-11-26 Zhibo Wang , Shen Yan , Xiaoyu Zhang , Niels Lobo

Learning meaningful representations is at the heart of many tasks in the field of modern machine learning. Recently, a lot of methods were introduced that allow learning of image representations without supervision. These representations…

We propose a self-supervised method to learn feature representations from videos. A standard approach in traditional self-supervised methods uses positive-negative data pairs to train with contrastive learning strategy. In such a case,…

计算机视觉与模式识别 · 计算机科学 2020-08-13 Li Tao , Xueting Wang , Toshihiko Yamasaki

This paper proposes an algorithm for real-time learning without explicit feedback. The algorithm combines the ideas of semi-supervised learning on graphs and online learning. In particular, it iteratively builds a graphical representation…

机器学习 · 计算机科学 2026-05-01 Branislav Kveton , Michal Valko , Matthai Phillipose , Ling Huang

Training deep neural networks to estimate the viewpoint of objects requires large labeled training datasets. However, manually labeling viewpoints is notoriously hard, error-prone, and time-consuming. On the other hand, it is relatively…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Siva Karthik Mustikovela , Varun Jampani , Shalini De Mello , Sifei Liu , Umar Iqbal , Carsten Rother , Jan Kautz

This paper takes a step towards temporal reasoning in a dynamically changing video, not in the pixel space that constitutes its frames, but in a latent space that describes the non-linear dynamics of the objects in its world. We introduce…

机器学习 · 统计学 2017-10-31 Marco Fraccaro , Simon Kamronn , Ulrich Paquet , Ole Winther

Visual servoing enables robotic systems to perform accurate closed-loop control, which is required in many applications. However, existing methods either require precise calibration of the robot kinematic model and cameras or use neural…

We propose a Convolutional Neural Network (CNN)-based model "RotationNet," which takes multi-view images of an object as input and jointly estimates its pose and object category. Unlike previous approaches that use known viewpoint labels…

计算机视觉与模式识别 · 计算机科学 2018-03-26 Asako Kanezaki , Yasuyuki Matsushita , Yoshifumi Nishida

We present an approach to utilize large amounts of web data for learning CNNs. Specifically inspired by curriculum learning, we present a two-step approach for CNN training. First, we use easy images to train an initial visual…

计算机视觉与模式识别 · 计算机科学 2015-10-09 Xinlei Chen , Abhinav Gupta

Contrastive learning of auditory and visual perception has been extremely successful when investigated individually. However, there are still major questions on how we could integrate principles learned from both domains to attain effective…

计算机视觉与模式识别 · 计算机科学 2021-10-15 Haider Al-Tahan , Yalda Mohsenzadeh

A long-term video, such as a movie or TV show, is composed of various scenes, each of which represents a series of shots sharing the same semantic story. Spotting the correct scene boundary from the long-term video is a challenging task,…

计算机视觉与模式识别 · 计算机科学 2022-05-12 Haoqian Wu , Keyu Chen , Yanan Luo , Ruizhi Qiao , Bo Ren , Haozhe Liu , Weicheng Xie , Linlin Shen

Training deep neural networks typically requires large amounts of labeled data which may be scarce or expensive to obtain for a particular target domain. As an alternative, we can leverage webly-supervised data (i.e. results from a public…

计算机视觉与模式识别 · 计算机科学 2019-08-06 Andrew Kae , Yale Song

Representation learning is the foundation of natural language processing (NLP). This work presents new methods to employ visual information as assistant signals to general NLP tasks. For each sentence, we first retrieve a flexible number of…

计算与语言 · 计算机科学 2023-01-10 Zhuosheng Zhang , Kehai Chen , Rui Wang , Masao Utiyama , Eiichiro Sumita , Zuchao Li , Hai Zhao

We present a semi-supervised approach that localizes multiple unknown object instances in long videos. We start with a handful of labeled boxes and iteratively learn and label hundreds of thousands of object instances. We propose criteria…

计算机视觉与模式识别 · 计算机科学 2015-05-22 Ishan Misra , Abhinav Shrivastava , Martial Hebert

Perceiving the world in terms of objects and tracking them through time is a crucial prerequisite for reasoning and scene understanding. Recently, several methods have been proposed for unsupervised learning of object-centric…

计算机视觉与模式识别 · 计算机科学 2021-08-18 Marissa A. Weis , Kashyap Chitta , Yash Sharma , Wieland Brendel , Matthias Bethge , Andreas Geiger , Alexander S. Ecker

State-of-the-art computer vision systems are trained to predict a fixed set of predetermined object categories. This restricted form of supervision limits their generality and usability since additional labeled data is needed to specify any…

Unsupervised object-centric learning aims to represent the modular, compositional, and causal structure of a scene as a set of object representations and thereby promises to resolve many critical limitations of traditional single-vector…

计算机视觉与模式识别 · 计算机科学 2022-05-30 Gautam Singh , Yi-Fu Wu , Sungjin Ahn