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Class imbalance poses a challenge for developing unbiased, accurate predictive models. In particular, in image segmentation neural networks may overfit to the foreground samples from small structures, which are often heavily…

计算机视觉与模式识别 · 计算机科学 2021-02-23 Zeju Li , Konstantinos Kamnitsas , Ben Glocker

Pretrained encoders for mathematical texts have achieved significant improvements on various tasks such as formula classification and information retrieval. Yet they remain limited in representing and capturing student strategies for entire…

计算机与社会 · 计算机科学 2026-04-13 Siddhartha Pradhan , Ethan Prihar , Erin Ottmar

We discuss the feasibility of the following learning problem: given unmatched samples from two domains and nothing else, learn a mapping between the two, which preserves semantics. Due to the lack of paired samples and without any…

机器学习 · 计算机科学 2020-01-16 Tomer Galanti , Lior Wolf , Sagie Benaim

Joint-embedding self-supervised learning (SSL), the key paradigm for unsupervised representation learning from visual data, learns from invariances between semantically-related data pairs. We study the one-to-many mapping problem in SSL,…

机器学习 · 计算机科学 2026-02-03 Yipeng Zhang , Hafez Ghaemi , Jungyoon Lee , Shahab Bakhtiari , Eilif B. Muller , Laurent Charlin

This paper studies the unsupervised embedding learning problem, which requires an effective similarity measurement between samples in low-dimensional embedding space. Motivated by the positive concentrated and negative separated properties…

计算机视觉与模式识别 · 计算机科学 2019-04-09 Mang Ye , Xu Zhang , Pong C. Yuen , Shih-Fu Chang

Recent advances in deep learning from probability distributions successfully achieve classification or regression from distribution samples, thus invariant under permutation of the samples. The first contribution of the paper is to extend…

机器学习 · 统计学 2020-10-20 Gwendoline De Bie , Herilalaina Rakotoarison , Gabriel Peyré , Michèle Sebag

We examine the problem of learning mappings from state to state, suitable for use in a model-based reinforcement-learning setting, that simultaneously generalize to novel states and can capture stochastic transitions. We show that currently…

机器学习 · 计算机科学 2017-10-27 Yuhang Song , Christopher Grimm , Xianming Wang , Michael L. Littman

Many of the existing methods for learning joint embedding of images and text use only supervised information from paired images and its textual attributes. Taking advantage of the recent success of unsupervised learning in deep neural…

计算机视觉与模式识别 · 计算机科学 2017-03-21 Yao-Hung Hubert Tsai , Liang-Kang Huang , Ruslan Salakhutdinov

Meta-learning algorithms adapt quickly to new tasks that are drawn from the same task distribution as the training tasks. The mechanism leading to fast adaptation is the conditioning of a downstream predictive model on the inferred…

We introduce a regularization loss based on kernel mean embeddings with rotation-invariant kernels on the hypersphere (also known as dot-product kernels) for self-supervised learning of image representations. Besides being fully competitive…

计算机视觉与模式识别 · 计算机科学 2023-03-09 Léon Zheng , Gilles Puy , Elisa Riccietti , Patrick Pérez , Rémi Gribonval

It is common to have continuous streams of new data that need to be introduced in the system in real-world applications. The model needs to learn newly added capabilities (future tasks) while retaining the old knowledge (past tasks).…

人工智能 · 计算机科学 2022-05-24 Md Sazzad Hossain , Pritom Saha , Townim Faisal Chowdhury , Shafin Rahman , Fuad Rahman , Nabeel Mohammed

We introduce the novel concept of anti-transfer learning for speech processing with convolutional neural networks. While transfer learning assumes that the learning process for a target task will benefit from re-using representations…

机器学习 · 计算机科学 2021-01-14 Eric Guizzo , Tillman Weyde , Giacomo Tarroni

Spatial Transformer Networks (STN) can generate geometric transformations which modify input images to improve the classifier's performance. In this work, we combine the idea of STN with Reinforcement Learning (RL). To this end, we break…

机器学习 · 计算机科学 2021-06-29 Fatemeh Azimi , Federico Raue , Joern Hees , Andreas Dengel

We study the problem of learning an unknown function using random feature models. Our main contribution is an exact asymptotic analysis of such learning problems with Gaussian data. Under mild regularity conditions for the feature matrix,…

信息论 · 计算机科学 2020-08-28 Oussama Dhifallah , Yue M. Lu

Learning invariant representations is an important problem in machine learning and pattern recognition. In this paper, we present a novel framework of transformation-invariant feature learning by incorporating linear transformations into…

机器学习 · 计算机科学 2012-07-03 Kihyuk Sohn , Honglak Lee

Set prediction is about learning to predict a collection of unordered variables with unknown interrelations. Training such models with set losses imposes the structure of a metric space over sets. We focus on stochastic and underdefined…

机器学习 · 计算机科学 2021-02-23 David W. Zhang , Gertjan J. Burghouts , Cees G. M. Snoek

Self-supervised learning can significantly improve the performance of downstream tasks, however, the dimensions of learned representations normally lack explicit physical meanings. In this work, we propose a novel self-supervised approach…

音频与语音处理 · 电气工程与系统科学 2022-01-19 Yifan Sun , Xihong Wu

In many engineered systems, optimization is used for decision making at time-scales ranging from real-time operation to long-term planning. This process often involves solving similar optimization problems over and over again with slightly…

最优化与控制 · 数学 2019-01-18 Sidhant Misra , Line Roald , Yeesian Ng

Self-supervised learning (SSL) methods learn from unlabeled data and achieve high generalization performance on downstream tasks. However, they may also suffer from overfitting to their training data and lose the ability to adapt to new…

计算机视觉与模式识别 · 计算机科学 2024-10-02 Wenwen Qiang , Zeen Song , Ziyin Gu , Jiangmeng Li , Changwen Zheng , Fuchun Sun , Hui Xiong

The ability to transfer in reinforcement learning is key towards building an agent of general artificial intelligence. In this paper, we consider the problem of learning to simultaneously transfer across both environments (ENV) and tasks…

机器学习 · 计算机科学 2021-05-28 Hexiang Hu , Liyu Chen , Boqing Gong , Fei Sha