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In deep reinforcement learning (RL), data augmentation is widely considered as a tool to induce a set of useful priors about semantic consistency and improve sample efficiency and generalization performance. However, even when the prior is…

机器学习 · 计算机科学 2023-03-02 Byungchan Ko , Jungseul Ok

In deep reinforcement learning (RL), data augmentation is widely considered as a tool to induce a set of useful priors about semantic consistency and improve sample efficiency and generalization performance. However, even when the prior is…

机器学习 · 计算机科学 2022-10-21 Byungchan Ko , Jungseul Ok

Deep learning methods typically depend on the availability of labeled data, which is expensive and time-consuming to obtain. Active learning addresses such effort by prioritizing which samples are best to annotate in order to maximize the…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Mélanie Gaillochet , Christian Desrosiers , Hervé Lombaert

Object detection and semantic segmentation with the 3D lidar point cloud data require expensive annotation. We propose a data augmentation method that takes advantage of already annotated data multiple times. We propose an augmentation…

计算机视觉与模式识别 · 计算机科学 2023-02-28 Petr Šebek , Šimon Pokorný , Patrik Vacek , Tomáš Svoboda

When we can not assume a large amount of annotated data , active learning is a good strategy. It consists in learning a model on a small amount of annotated data (annotation budget) and in choosing the best set of points to annotate in…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Umang Aggarwal , Adrian Popescu , Céline Hudelot

Data-Augmentation (DA) is known to improve performance across tasks and datasets. We propose a method to theoretically analyze the effect of DA and study questions such as: how many augmented samples are needed to correctly estimate the…

机器学习 · 计算机科学 2022-02-18 Randall Balestriero , Ishan Misra , Yann LeCun

In this paper, we reveal the two sides of data augmentation: enhancements in closed-set recognition correlate with a significant decrease in open-set recognition. Through empirical investigation, we find that multi-sample-based…

计算机视觉与模式识别 · 计算机科学 2024-05-01 Yunbing Jia , Xiaoyu Kong , Fan Tang , Yixing Gao , Weiming Dong , Yi Yang

In recent years, deep learning has achieved remarkable achievements in many fields, including computer vision, natural language processing, speech recognition and others. Adequate training data is the key to ensure the effectiveness of the…

机器学习 · 计算机科学 2019-05-24 Chunxu Zhang , Jiaxu Cui , Bo Yang

Data Augmentation (DA) -- enriching training data by adding synthetic samples -- is a technique widely adopted in Computer Vision (CV) and Natural Language Processing (NLP) tasks to improve models performance. Yet, DA has struggled to gain…

机器学习 · 计算机科学 2024-01-24 Chao Wang , Alessandro Finamore , Pietro Michiardi , Massimo Gallo , Dario Rossi

Annotating the right set of data amongst all available data points is a key challenge in many machine learning applications. Batch active learning is a popular approach to address this, in which batches of unlabeled data points are selected…

机器学习 · 统计学 2021-04-20 Amirata Ghorbani , James Zou , Andre Esteva

Deep learning models have demonstrated outstanding performance in several problems, but their training process tends to require immense amounts of computational and human resources for training and labeling, constraining the types of…

机器学习 · 计算机科学 2019-04-29 Toan Tran , Thanh-Toan Do , Ian Reid , Gustavo Carneiro

While data augmentation (DA) is generally applied to input data, several studies have reported that applying DA to hidden layers in neural networks, i.e., feature augmentation, can improve performance. However, in previous studies, the…

机器学习 · 计算机科学 2024-08-27 Tomoumi Takase , Ryo Karakida

Mobile robots and autonomous vehicles rely on multi-modal sensor setups to perceive and understand their surroundings. Aside from cameras, LiDAR sensors represent a central component of state-of-the-art perception systems. In addition to…

计算机视觉与模式识别 · 计算机科学 2018-04-27 Florian Piewak , Peter Pinggera , Manuel Schäfer , David Peter , Beate Schwarz , Nick Schneider , David Pfeiffer , Markus Enzweiler , Marius Zöllner

In recent years, one of the most popular techniques in the computer vision community has been the deep learning technique. As a data-driven technique, deep model requires enormous amounts of accurately labelled training data, which is often…

计算机视觉与模式识别 · 计算机科学 2022-10-10 Zihan Yang , Richard O. Sinnott , James Bailey , Qiuhong Ke

Data augmentation (DA) encodes invariance and provides implicit regularization critical to a model's performance in image classification tasks. However, while DA improves average accuracy, recent studies have shown that its impact can be…

计算机视觉与模式识别 · 计算机科学 2024-01-04 Polina Kirichenko , Mark Ibrahim , Randall Balestriero , Diane Bouchacourt , Ramakrishna Vedantam , Hamed Firooz , Andrew Gordon Wilson

While LiDAR data acquisition is easy, labeling for semantic segmentation remains highly time consuming and must therefore be done selectively. Active learning (AL) provides a solution that can iteratively and intelligently label a dataset…

计算机视觉与模式识别 · 计算机科学 2023-09-26 Ozan Unal , Dengxin Dai , Ali Tamer Unal , Luc Van Gool

The deployment and application of Large Language Models (LLMs) is hindered by their memory inefficiency, computational demands, and the high costs of API inferences. Traditional distillation methods, which transfer the capabilities of LLMs…

计算与语言 · 计算机科学 2024-11-21 Yifei Zhang , Bo Pan , Chen Ling , Yuntong Hu , Liang Zhao

LiDAR (Light Detection And Ranging) is an essential and widely adopted sensor for autonomous vehicles, particularly for those vehicles operating at higher levels (L4-L5) of autonomy. Recent work has demonstrated the promise of deep-learning…

计算机视觉与模式识别 · 计算机科学 2019-04-22 Bernie Wang , Virginia Wu , Bichen Wu , Kurt Keutzer

Active learning (AL) aims to select the most useful data samples from an unlabeled data pool and annotate them to expand the labeled dataset under a limited budget. Especially, uncertainty-based methods choose the most uncertain samples,…

机器学习 · 计算机科学 2023-10-02 Seong Min Kye , Kwanghee Choi , Hyeongmin Byun , Buru Chang

Recent works in dataset distillation seek to minimize training expenses by generating a condensed synthetic dataset that encapsulates the information present in a larger real dataset. These approaches ultimately aim to attain test accuracy…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Samir Khaki , Ahmad Sajedi , Kai Wang , Lucy Z. Liu , Yuri A. Lawryshyn , Konstantinos N. Plataniotis