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End to end (E2E) autonomous driving trajectory prediction is often trained with camera frames sampled at the highest available temporal frequency, assuming that denser sampling improves performance. We question this assumption by treating…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Yumao Liu , Tao Liu , Xiangyu Li , Jiaxiang Li , Ke Ma

We investigate a strategy for improving the efficiency of contrastive learning of visual representations by leveraging a small amount of supervised information during pre-training. We propose a semi-supervised loss, SuNCEt, based on…

机器学习 · 计算机科学 2020-12-03 Mahmoud Assran , Nicolas Ballas , Lluis Castrejon , Michael Rabbat

Real-world datasets are often biased with respect to key demographic factors such as race and gender. Due to the latent nature of the underlying factors, detecting and mitigating bias is especially challenging for unsupervised machine…

机器学习 · 计算机科学 2020-07-01 Kristy Choi , Aditya Grover , Trisha Singh , Rui Shu , Stefano Ermon

In this paper we propose Structuring AutoEncoders (SAE). SAEs are neural networks which learn a low dimensional representation of data which are additionally enriched with a desired structure in this low dimensional space. While traditional…

机器学习 · 计算机科学 2019-08-20 Marco Rudolph , Bastian Wandt , Bodo Rosenhahn

In this paper, we propose a novel self-supervised representation learning by taking advantage of a neighborhood-relational encoding (NRE) among the training data. Conventional unsupervised learning methods only focused on training deep…

计算机视觉与模式识别 · 计算机科学 2019-08-29 Mohammad Sabokrou , Mohammad Khalooei , Ehsan Adeli

Sparsity is a desirable attribute. It can lead to more efficient and more effective representations compared to the dense model. Meanwhile, learning sparse latent representations has been a challenging problem in the field of computer…

计算机视觉与模式识别 · 计算机科学 2022-09-22 Hanao Li , Tian Han

We develop a new framework for learning variational autoencoders and other deep generative models that balances generative and discriminative goals. Our framework optimizes model parameters to maximize a variational lower bound on the…

Visual navigation requires a whole range of capabilities. A crucial one of these is the ability of an agent to determine its own location and heading in an environment. Prior works commonly assume this information as given, or use methods…

机器学习 · 计算机科学 2024-02-20 Moritz Lange , Raphael C. Engelhardt , Wolfgang Konen , Laurenz Wiskott

Continual learning aims to incrementally acquire new concepts in data streams while resisting forgetting previous knowledge. With the rise of powerful pre-trained models (PTMs), there is a growing interest in training incremental learning…

机器学习 · 计算机科学 2024-11-05 Linglan Zhao , Xuerui Zhang , Ke Yan , Shouhong Ding , Weiran Huang

The success of deep neural networks often relies on a large amount of labeled examples, which can be difficult to obtain in many real scenarios. To address this challenge, unsupervised methods are strongly preferred for training neural…

计算机视觉与模式识别 · 计算机科学 2019-03-26 Liheng Zhang , Guo-Jun Qi , Liqiang Wang , Jiebo Luo

The recent success of supervised learning methods on ever larger offline datasets has spurred interest in the reinforcement learning (RL) field to investigate whether the same paradigms can be translated to RL algorithms. This research…

机器学习 · 计算机科学 2021-02-12 Mengjiao Yang , Ofir Nachum

Deep neural networks exhibit a simplicity bias, a well-documented tendency to favor simple functions over complex ones. In this work, we cast new light on this phenomenon through the lens of the Minimum Description Length principle,…

We study the relationship between the frequency of a function and the speed at which a neural network learns it. We build on recent results that show that the dynamics of overparameterized neural networks trained with gradient descent can…

机器学习 · 计算机科学 2019-12-03 Ronen Basri , David Jacobs , Yoni Kasten , Shira Kritchman

Self-supervised learning (SSL) has allowed substantial progress in Automatic Speech Recognition (ASR) performance in low-resource settings. In this context, it has been demonstrated that larger self-supervised feature extractors are crucial…

音频与语音处理 · 电气工程与系统科学 2023-03-14 Salah Zaiem , Robin Algayres , Titouan Parcollet , Slim Essid , Mirco Ravanelli

Representation learning seeks to expose certain aspects of observed data in a learned representation that's amenable to downstream tasks like classification. For instance, a good representation for 2D images might be one that describes only…

Our work focuses on unsupervised and generative methods that address the following goals: (a) learning unsupervised generative representations that discover latent factors controlling image semantic attributes, (b) studying how this ability…

计算机视觉与模式识别 · 计算机科学 2021-06-08 William Paul , I-Jeng Wang , Fady Alajaji , Philippe Burlina

In this paper, we explore various approaches for semi supervised learning in an end to end automatic speech recognition (ASR) framework. The first step in our approach involves training a seed model on the limited amount of labelled data.…

音频与语音处理 · 电气工程与系统科学 2019-08-15 Subhadeep Dey , Petr Motlicek , Trung Bui , Franck Dernoncourt

Multimodal Language Analysis is a demanding area of research, since it is associated with two requirements: combining different modalities and capturing temporal information. During the last years, several works have been proposed in the…

计算与语言 · 计算机科学 2022-01-10 Panagiotis Koromilas , Theodoros Giannakopoulos

We propose a scalable method for semi-supervised (transductive) learning from massive network-structured datasets. Our approach to semi-supervised learning is based on representing the underlying hypothesis as a graph signal with small…

机器学习 · 计算机科学 2016-11-03 Alexander Jung , Alfred O. Hero , Alexandru Mara , Sabeur Aridhi

Estimating the parameters of a model describing a set of observations using a neural network is in general solved in a supervised way. In cases when we do not have access to the model's true parameters this approach can not be applied.…

星系天体物理 · 物理学 2020-09-30 Miguel A. Aragon-Calvo