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New medical datasets are now more open to the public, allowing for better and more extensive research. Although prepared with the utmost care, new datasets might still be a source of spurious correlations that affect the learning process.…

Image and Video Processing · Electrical Eng. & Systems 2022-09-23 Agnieszka Mikołajczyk , Sylwia Majchrowska , Sandra Carrasco Limeros

Anomaly detection is a critical task that involves the identification of data points that deviate from a predefined pattern, useful for fraud detection and related activities. Various techniques are employed for anomaly detection, but…

Machine Learning · Computer Science 2023-10-03 Marcellin Atemkeng , Toheeb Aduramomi Jimoh

Structural Health Monitoring plays a crucial role in ensuring the safety, reliability, and longevity of bridge infrastructures through early damage detection. Although recent advances in deep learning-based models have enabled automated…

Computational Engineering, Finance, and Science · Computer Science 2025-10-21 Sasan Farhadi , Mariateresa Iavarone , Mauro Corrado , Eleni Chatzi , Giulio Ventura

Deep learning has become a popular tool for medical image analysis, but the limited availability of training data remains a major challenge, particularly in the medical field where data acquisition can be costly and subject to privacy…

Image and Video Processing · Electrical Eng. & Systems 2024-06-11 Aghiles Kebaili , Jérôme Lapuyade-Lahorgue , Su Ruan

Recent advancements in Generative Adversarial Networks (GANs) have enabled photorealistic image generation with high quality. However, the malicious use of such generated media has raised concerns regarding visual misinformation. Although…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Liviu-Daniel Ştefan , Dan-Cristian Stanciu , Mihai Dogariu , Mihai Gabriel Constantin , Andrei Cosmin Jitaru , Bogdan Ionescu

In this paper we propose a data augmentation method for time series with irregular sampling, Time-Conditional Generative Adversarial Network (T-CGAN). Our approach is based on Conditional Generative Adversarial Networks (CGAN), where the…

Machine Learning · Computer Science 2019-02-04 Giorgia Ramponi , Pavlos Protopapas , Marco Brambilla , Ryan Janssen

Realistic synthetic time series data of sufficient length enables practical applications in time series modeling tasks, such as forecasting, but remains a challenge. In this paper we present PSA-GAN, a generative adversarial network (GAN)…

Supervised training of an automated medical image analysis system often requires a large amount of expert annotations that are hard to collect. Moreover, the proportions of data available across different classes may be highly imbalanced…

Computer Vision and Pattern Recognition · Computer Science 2019-12-10 Yuan Xue , Jiarong Ye , Rodney Long , Sameer Antani , Zhiyun Xue , Xiaolei Huang

Medical image classification is one of the most critical problems in the image recognition area. One of the major challenges in this field is the scarcity of labelled training data. Additionally, there is often class imbalance in datasets…

Image and Video Processing · Electrical Eng. & Systems 2022-09-29 Khushboo Mehra , Hassan Soliman , Soumya Ranjan Sahoo

Obtaining data to train robust artificial intelligence (AI)-based models for species classification can be challenging, particularly for rare species. Data augmentation can boost classification accuracy by increasing the diversity of…

Sound · Computer Science 2025-12-16 Anthony Gibbons , Emma King , Ian Donohue , Andrew Parnell

Weak supervision combines the advantages of training on real data with the ability to exploit signal properties. However, training a neural network using weak supervision often requires an excessive amount of signal data, which severely…

High Energy Physics - Phenomenology · Physics 2024-12-23 Zong-En Chen , Cheng-Wei Chiang , Feng-Yang Hsieh

Signal measurements appearing in the form of time series are one of the most common types of data used in medical machine learning applications. However, such datasets are often small, making the training of deep neural network…

Machine Learning · Computer Science 2022-06-28 Xiaomin Li , Vangelis Metsis , Huangyingrui Wang , Anne Hee Hiong Ngu

Despite the dramatic success in image generation, Generative Adversarial Networks (GANs) still face great challenges in synthesizing sequences of discrete elements, in particular human language. The difficulty in generator training arises…

Computation and Language · Computer Science 2023-02-24 Yekun Chai , Qiyue Yin , Junge Zhang

Lithography modeling is a crucial problem in chip design to ensure a chip design mask is manufacturable. It requires rigorous simulations of optical and chemical models that are computationally expensive. Recent developments in machine…

With recent advancements in deep learning methods, automatically learning deep features from the original data is becoming an effective and widespread approach. However, the hand-crafted expert knowledge-based features are still insightful.…

Machine Learning · Computer Science 2021-05-10 Guanjie Huang , Fenglong Ma

It is well known that the performance of any classification model is effective if the dataset used for the training process and the test process satisfy some specific requirements. In other words, the more the dataset size is large,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-09 Hazem Zein , Samer Chantaf , Régis Fournier , Amine Nait-Ali

Emotion recognition in text, the task of identifying emotions such as joy or anger, is a challenging problem in NLP with many applications. One of the challenges is the shortage of available datasets that have been annotated with emotions.…

Computation and Language · Computer Science 2023-10-31 Anna Koufakou , Diego Grisales , Ragy Costa de jesus , Oscar Fox

Generative Adversarial Networks (GANs) have shown remarkable success as a framework for training models to produce realistic-looking data. In this work, we propose a Recurrent GAN (RGAN) and Recurrent Conditional GAN (RCGAN) to produce…

Machine Learning · Statistics 2017-12-05 Cristóbal Esteban , Stephanie L. Hyland , Gunnar Rätsch

Recent works show that Generative Adversarial Networks (GANs) can be successfully applied to chest X-ray data augmentation for lung disease recognition. However, the implausible and distorted pathology features generated from the less than…

Image and Video Processing · Electrical Eng. & Systems 2020-01-23 Yunyan Xing , Zongyuan Ge , Rui Zeng , Dwarikanath Mahapatra , Jarrel Seah , Meng Law , Tom Drummond

Data sparsity is one of the key challenges associated with model development in Natural Language Understanding (NLU) for conversational agents. The challenge is made more complex by the demand for high quality annotated utterances commonly…

Computation and Language · Computer Science 2020-12-11 Olga Golovneva , Charith Peris