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Extracting noisy or incorrectly labeled samples from a labeled dataset with hard/difficult samples is an important yet under-explored topic. Two general and often independent lines of work exist, one focuses on addressing noisy labels, and…

Machine Learning · Computer Science 2023-07-21 Mahsa Forouzesh , Patrick Thiran

We investigate probabilistic decoupling of labels supplied for training, from the underlying classes for prediction. Decoupling enables an inference scheme general enough to implement many classification problems, including supervised,…

Machine Learning · Computer Science 2019-05-30 Jeppe Nørregaard , Lars Kai Hansen

Recently, video recognition is emerging with the help of multi-modal learning, which focuses on integrating distinct modalities to improve the performance or robustness of the model. Although various multi-modal learning methods have been…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Haochen Han , Qinghua Zheng , Minnan Luo , Kaiyao Miao , Feng Tian , Yan Chen

Learning an object detector or retrieval requires a large data set with manual annotations. Such data sets are expensive and time consuming to create and therefore difficult to obtain on a large scale. In this work, we propose to exploit…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Elad Amrani , Rami Ben-Ari , Tal Hakim , Alex Bronstein

Recent advances in deep learning have relied on large, labelled datasets to train high-capacity models. However, collecting large datasets in a time- and cost-efficient manner often results in label noise. We present a method for learning…

Computer Vision and Pattern Recognition · Computer Science 2022-07-07 Ahmet Iscen , Jack Valmadre , Anurag Arnab , Cordelia Schmid

The availability of a large quantity of labelled training data is crucial for the training of modern object detectors. Hand labelling training data is time consuming and expensive while automatic labelling methods inevitably add unwanted…

Robotics · Computer Science 2019-05-20 Simon Chadwick , Paul Newman

Label noise is emerging as a pressing issue in sound event classification. This arises as we move towards larger datasets that are difficult to annotate manually, but it is even more severe if datasets are collected automatically from…

Sound · Computer Science 2019-10-29 Eduardo Fonseca , Frederic Font , Xavier Serra

Label noise remains a challenge for training robust classification models. Most methods for mitigating label noise have been benchmarked using primarily datasets with synthetic noise. While the need for datasets with realistic noise…

Computation and Language · Computer Science 2024-10-24 Alicja Rączkowska , Aleksandra Osowska-Kurczab , Jacek Szczerbiński , Kalina Jasinska-Kobus , Klaudia Nazarko

Supervised training of object detectors requires well-annotated large-scale datasets, whose production is costly. Therefore, some efforts have been made to obtain annotations in economical ways, such as cloud sourcing. However, datasets…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Jiafeng Mao , Qing Yu , Yoko Yamakata , Kiyoharu Aizawa

Many learning tasks in machine learning can be viewed as taking a gradient step towards minimizing the average loss of a batch of examples in each training iteration. When noise is prevalent in the data, this uniform treatment of examples…

Machine Learning · Computer Science 2021-04-06 Negin Majidi , Ehsan Amid , Hossein Talebi , Manfred K. Warmuth

Incorporating every annotator's perspective is crucial for unbiased data modeling. Annotator fatigue and changing opinions over time can distort dataset annotations. To combat this, we propose to learn a more accurate representation of…

Machine Learning · Computer Science 2024-06-05 Uthman Jinadu , Yi Ding

In real-world datasets, noisy labels are pervasive. The challenge of learning with noisy labels (LNL) is to train a classifier that discerns the actual classes from given instances. For this, the model must identify features indicative of…

Machine Learning · Computer Science 2023-08-15 Hui Kang , Sheng Liu , Huaxi Huang , Tongliang Liu

Annotators exhibit disagreement during data labeling, which can be termed as annotator label uncertainty. Annotator label uncertainty manifests in variations of labeling quality. Training with a single low-quality annotation per sample…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Chen Zhou , Mohit Prabhushankar , Ghassan AlRegib

We study the problem of recovering the latent ground truth labeling of a structured instance with categorical random variables in the presence of noisy observations. We present a new approximate algorithm for graphs with categorical…

Machine Learning · Computer Science 2019-07-09 Alireza Heidari , Ihab F. Ilyas , Theodoros Rekatsinas

Current state-of-the-art deep learning systems for visual object recognition and detection use purely supervised training with regularization such as dropout to avoid overfitting. The performance depends critically on the amount of labeled…

Computer Vision and Pattern Recognition · Computer Science 2015-04-16 Scott Reed , Honglak Lee , Dragomir Anguelov , Christian Szegedy , Dumitru Erhan , Andrew Rabinovich

In learning tasks with label noise, improving model robustness against overfitting is a pivotal challenge because the model eventually memorizes labels, including the noisy ones. Identifying the samples with noisy labels and preventing the…

Machine Learning · Computer Science 2023-09-28 Reihaneh Torkzadehmahani , Reza Nasirigerdeh , Daniel Rueckert , Georgios Kaissis

We present a self-supervised learning method to learn audio and video representations. Prior work uses the natural correspondence between audio and video to define a standard cross-modal instance discrimination task, where a model is…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Pedro Morgado , Ishan Misra , Nuno Vasconcelos

Imperfections in data annotation, known as label noise, are detrimental to the training of machine learning models and have an often-overlooked confounding effect on the assessment of model performance. Nevertheless, employing experts to…

Weakly supervised object detection (WSOD), where a detector is trained with only image-level annotations, is attracting more and more attention. As a method to obtain a well-performing detector, the detector and the instance labels are…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Satoshi Kosugi , Toshihiko Yamasaki , Kiyoharu Aizawa

Either human annotation or rule based automatic labeling is an effective method to augment data for relation extraction. However, the inevitable wrong labeling problem for example by distant supervision may deteriorate the performance of…

Computation and Language · Computer Science 2020-04-30 Shanchan Wu , Kai Fan