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Related papers: Active Learning by Acquiring Contrastive Examples

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Active feature acquisition (AFA) is a sequential decision-making problem where the goal is to improve model performance for test instances by adaptively selecting which features to acquire. In practice, AFA methods often learn from…

Machine Learning · Computer Science 2025-10-15 Yuta Kobayashi , Zilin Jing , Jiayu Yao , Hongseok Namkoong , Shalmali Joshi

Temporal Action Localization (TAL) aims to predict both action category and temporal boundary of action instances in untrimmed videos, i.e., start and end time. Fully-supervised solutions are usually adopted in most existing works, and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Ding Li , Xuebing Yang , Yongqiang Tang , Chenyang Zhang , Wensheng Zhang

How can we find a general way to choose the most suitable samples for training a classifier? Even with very limited prior information? Active learning, which can be regarded as an iterative optimization procedure, plays a key role to…

Machine Learning · Computer Science 2019-04-16 Bo Du , Zengmao Wang , Lefei Zhang , Liangpei Zhang , Wei Liu , Jialie Shen , Dacheng Tao

AI deployed in many real-world use cases should be capable of adapting to novelties encountered after deployment. Here, we consider a challenging, under-explored and realistic continual adaptation problem: a deployed AI agent is…

Machine Learning · Computer Science 2024-12-16 Amanda Rios , Ibrahima Ndiour , Parual Datta , Jerry Sydir , Omesh Tickoo , Nilesh Ahuja

Given a limited labeling budget, active learning (AL) aims to sample the most informative instances from an unlabeled pool to acquire labels for subsequent model training. To achieve this, AL typically measures the informativeness of…

Machine Learning · Computer Science 2023-07-07 Cheng Chen , Yong Wang , Lizi Liao , Yueguo Chen , Xiaoyong Du

We propose a general-purpose approach to discovering active learning (AL) strategies from data. These strategies are transferable from one domain to another and can be used in conjunction with many machine learning models. To this end, we…

Machine Learning · Computer Science 2019-04-03 Ksenia Konyushkova , Raphael Sznitman , Pascal Fua

The ability to train complex and highly effective models often requires an abundance of training data, which can easily become a bottleneck in cost, time, and computational resources. Batch active learning, which adaptively issues batched…

Active learning is a machine learning method aiming at optimal design for model training. At variance with supervised learning, which labels all samples, active learning provides an improved model by labeling samples with maximal…

Active learning agents typically employ a query selection algorithm which solely considers the agent's learning objectives. However, this may be insufficient in more realistic human domains. This work uses imitation learning to enable an…

Machine Learning · Computer Science 2019-07-02 Kalesha Bullard , Yannick Schroecker , Sonia Chernova

Contrastive approaches to representation learning have recently shown great promise. In contrast to generative approaches, these contrastive models learn a deterministic encoder with no notion of uncertainty or confidence. In this paper, we…

Machine Learning · Computer Science 2020-10-06 Mike Wu , Noah Goodman

This paper studies a new problem, \emph{active learning with partial labels} (ALPL). In this setting, an oracle annotates the query samples with partial labels, relaxing the oracle from the demanding accurate labeling process. To address…

Machine Learning · Computer Science 2023-07-17 Fei Zhang , Yunjie Ye , Lei Feng , Zhongwen Rao , Jieming Zhu , Marcus Kalander , Chen Gong , Jianye Hao , Bo Han

In many data mining applications collection of sufficiently large datasets is the most time consuming and expensive. On the other hand, industrial methods of data collection create huge databases, and make difficult direct applications of…

Machine Learning · Statistics 2011-08-03 Vladimir Nikulin

Large amounts of labeled training data are one of the main contributors to the great success that deep models have achieved in the past. Label acquisition for tasks other than benchmarks can pose a challenge due to requirements of both…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Clemens-Alexander Brust , Christoph Käding , Joachim Denzler

Active learning is a unique abstraction of machine learning techniques where the model/algorithm could guide users for annotation of a set of data points that would be beneficial to the model, unlike passive machine learning. The primary…

Computer Vision and Pattern Recognition · Computer Science 2021-01-08 Vishwesh Nath , Dong Yang , Bennett A. Landman , Daguang Xu , Holger R. Roth

Continual learning requires learning incremental tasks with dynamic data distributions. So far, it has been observed that employing a combination of contrastive loss and distillation loss for training in continual learning yields strong…

Machine Learning · Computer Science 2024-05-30 Yichen Wen , Zhiquan Tan , Kaipeng Zheng , Chuanlong Xie , Weiran Huang

Active learning is commonly used to train label-efficient models by adaptively selecting the most informative queries. However, most active learning strategies are designed to either learn a representation of the data (e.g., embedding or…

Machine Learning · Computer Science 2022-02-07 Namrata Nadagouda , Austin Xu , Mark A. Davenport

With the rapid advancement of ubiquitous computing technology, human activity analysis based on time series data from a diverse range of sensors enables the delivery of more intelligent services. Despite the importance of exploring new…

Machine Learning · Computer Science 2025-03-21 Hyunju Kim , Dongman Lee

The deployment of Deep Learning (DL) models is still precluded in those contexts where the amount of supervised data is limited. To answer this issue, active learning strategies aim at minimizing the amount of labelled data required to…

Machine Learning · Computer Science 2023-09-28 Gabriele Ciravegna , Frédéric Precioso , Alessandro Betti , Kevin Mottin , Marco Gori

Construction of human-curated annotated datasets for abstractive text summarization (ATS) is very time-consuming and expensive because creating each instance requires a human annotator to read a long document and compose a shorter summary…

We study a generalization of classical active learning to real-world settings with concrete prediction targets where sampling is restricted to an accessible region of the domain, while prediction targets may lie outside this region. We…

Machine Learning · Computer Science 2025-02-11 Jonas Hübotter , Bhavya Sukhija , Lenart Treven , Yarden As , Andreas Krause