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Convolutional Neural Networks (CNNs) have proven to be state-of-the-art models for supervised computer vision tasks, such as image classification. However, large labeled data sets are generally needed for the training and validation of such…

Machine Learning · Computer Science 2020-10-28 Patrick Hemmer , Niklas Kühl , Jakob Schöffer

Active learning can play an important role in low-resource settings (i.e., where annotated data is scarce), by selecting which instances may be more worthy to annotate. Most active learning approaches for Machine Translation assume the…

Computation and Language · Computer Science 2022-03-15 Vânia Mendonça , Ricardo Rei , Luisa Coheur , Alberto Sardinha

The cost of drawing object bounding boxes (i.e. labeling) for millions of images is prohibitively high. For instance, labeling pedestrians in a regular urban image could take 35 seconds on average. Active learning aims to reduce the cost of…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Hamed H. Aghdam , Abel Gonzalez-Garcia , Joost van de Weijer , Antonio M. López

Annotation of training data is the major bottleneck in the creation of text classification systems. Active learning is a commonly used technique to reduce the amount of training data one needs to label. A crucial aspect of active learning…

Machine Learning · Computer Science 2019-04-24 Garrett Beatty , Ethan Kochis , Michael Bloodgood

Gathering labeled data to train well-performing machine learning models is one of the critical challenges in many applications. Active learning aims at reducing the labeling costs by an efficient and effective allocation of costly labeling…

Machine Learning · Computer Science 2020-06-03 Daniel Kottke , Marek Herde , Christoph Sandrock , Denis Huseljic , Georg Krempl , Bernhard Sick

Applied mathematics and machine computations have raised a lot of hope since the recent success of supervised learning. Many practitioners in industries have been trying to switch from their old paradigms to machine learning. Interestingly,…

Machine Learning · Computer Science 2022-09-26 Vivien Cabannes

Active learning is able to reduce the amount of labelling effort by using a machine learning model to query the user for specific inputs. While there are many papers on new active learning techniques, these techniques rarely satisfy the…

Machine Learning · Computer Science 2020-06-18 Parmida Atighehchian , Frédéric Branchaud-Charron , Alexandre Lacoste

Named entity recognition (NER) aims to identify mentions of named entities in an unstructured text and classify them into predefined named entity classes. While deep learning-based pre-trained language models help to achieve good predictive…

Computation and Language · Computer Science 2023-06-16 Ali Osman Berk Sapci , Oznur Tastan , Reyyan Yeniterzi

Several works in computer vision have demonstrated the effectiveness of active learning for adapting the recognition model when new unlabeled data becomes available. Most of these works consider that labels obtained from the annotator are…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Sudipta Paul , Shivkumar Chandrasekaran , B. S. Manjunath , Amit K. Roy-Chowdhury

Majorly classical Active Learning (AL) approach usually uses statistical theory such as entropy and margin to measure instance utility, however it fails to capture the data distribution information contained in the unlabeled data. This can…

Machine Learning · Computer Science 2020-12-10 Patrick K. Gikunda , Nicolas Jouandeau

Active learning seeks to achieve strong performance with fewer training samples. It does this by iteratively asking an oracle to label new selected samples in a human-in-the-loop manner. This technique has gained increasing popularity due…

Machine Learning · Computer Science 2024-07-16 Dongyuan Li , Zhen Wang , Yankai Chen , Renhe Jiang , Weiping Ding , Manabu Okumura

Most of the existing learning models, particularly deep neural networks, are reliant on large datasets whose hand-labeling is expensive and time demanding. A current trend is to make the learning of these models frugal and less dependent on…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Sebastien Deschamps , Hichem Sahbi

High-resolution event data on armed conflict and related processes have revolutionized the study of political contention with datasets like UCDP GED, ACLED etc. However, most of these datasets limit themselves to collecting spatio-temporal…

Computers and Society · Computer Science 2024-02-05 Mihai Croicu

Active learning allows machine learning models to be trained using fewer labels while retaining similar performance to traditional supervised learning. An active learner selects the most informative data points, requests their labels, and…

Machine Learning · Computer Science 2023-11-22 Zac Pullar-Strecker , Katharina Dost , Eibe Frank , Jörg Wicker

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

High accuracy medical image classification can be limited by the costs of acquiring more data as well as the time and expertise needed to label existing images. In this paper, we apply active learning to medical image classification, a…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Emma Slade , Kim M. Branson

Active learning generally involves querying the most representative samples for human labeling, which has been widely studied in many fields such as image classification and object detection. However, its potential has not been explored in…

Computer Vision and Pattern Recognition · Computer Science 2020-12-10 Jun Wang , Shaoguo Wen , Kaixing Chen , Jianghua Yu , Xin Zhou , Peng Gao , Changsheng Li , Guotong Xie

Active learning is a subfield of machine learning, in which the learning algorithm is allowed to choose the data from which it learns. In some cases, it has been shown that active learning can yield an exponential gain in the number of…

Machine Learning · Computer Science 2020-12-22 Ori Kelner

We present a supervised learning algorithm for text categorization which has brought the team of authors the 2nd place in the text categorization division of the 2012 Cybersecurity Data Mining Competition (CDMC'2012) and a 3rd prize…

Information Retrieval · Computer Science 2013-07-11 Hubert Haoyang Duan , Vladimir Pestov , Varun Singla

A significantly faster algorithm is presented for the original kNN mode seeking procedure. It has the advantages over the well-known mean shift algorithm that it is feasible in high-dimensional vector spaces and results in uniquely, well…

Machine Learning · Statistics 2017-12-21 Robert P. W. Duin , Sergey Verzakov