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The finance industry is producing an increasing amount of datasets that investment professionals can consider to be influential on the price of financial assets. These datasets were initially mainly limited to exchange data, namely price,…

Computational Finance · Quantitative Finance 2024-05-16 Matteo Rizzato , Julien Wallart , Christophe Geissler , Nicolas Morizet , Noureddine Boumlaik

Machine learning algorithms are used in diverse domains, many of which face significant challenges due to data imbalance. Studies have explored various approaches to address the issue, like data preprocessing, cost-sensitive learning, and…

Artificial Intelligence · Computer Science 2025-02-25 Pankaj Yadav , Gulshan Sihag , Vivek Vijay

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

Time series synthesis is an effective approach to ensuring the secure circulation of time series data. Existing time series synthesis methods typically perform temporal modeling based on random sequences to generate target sequences, which…

Machine Learning · Computer Science 2025-09-01 Xuan Hou , Shuhan Liu , Zhaohui Peng , Yaohui Chu , Yue Zhang , Yining Wang

Using machine learning models to generate synthetic data has become common in many fields. Technology to generate synthetic transactions that can be used to detect fraud is also growing fast. Generally, this synthetic data contains only…

Machine Learning · Computer Science 2023-06-30 Shuo Wang , Terrence Tricco , Xianta Jiang , Charles Robertson , John Hawkin

Systematic trading strategies are algorithmic procedures that allocate assets aiming to optimize a certain performance criterion. To obtain an edge in a highly competitive environment, the analyst needs to proper fine-tune its strategy, or…

Machine Learning · Computer Science 2019-04-02 Adriano Koshiyama , Nick Firoozye , Philip Treleaven

The sharing of medical imaging datasets between institutions, and even inside the same institution, is limited by various regulations/legal barriers. Although these limitations are necessities for protecting patient privacy and setting…

Image and Video Processing · Electrical Eng. & Systems 2020-03-03 Engin Dikici , Luciano M. Prevedello , Matthew Bigelow , Richard D. White , Barbaros Selnur Erdal

Crash data is often greatly imbalanced, with the majority of crashes being non-fatal crashes, and only a small number being fatal crashes due to their rarity. Such data imbalance issue poses a challenge for crash severity modeling since it…

Machine Learning · Computer Science 2024-04-04 Junlan Chen , Ziyuan Pu , Nan Zheng , Xiao Wen , Hongliang Ding , Xiucheng Guo

Recent advances in conditional generative modeling have introduced Continuous conditional Generative Adversarial Network (CcGAN) and Continuous Conditional Diffusion Model (CCDM) for estimating high-dimensional data distributions…

Machine Learning · Computer Science 2026-02-04 Xin Ding , Yun Chen , Yongwei Wang , Kao Zhang , Sen Zhang , Peibei Cao , Xiangxue Wang

Microplastic particle ingestion or inhalation by humans is a problem of growing concern. Unfortunately, current research methods that use machine learning to understand their potential harms are obstructed by a lack of available data. Deep…

Machine Learning · Computer Science 2024-05-02 Daniel Platnick , Sourena Khanzadeh , Alireza Sadeghian , Richard Anthony Valenzano

Clinical data usually cannot be freely distributed due to their highly confidential nature and this hampers the development of machine learning in the healthcare domain. One way to mitigate this problem is by generating realistic synthetic…

Due to their data-driven nature, Machine Learning (ML) models are susceptible to bias inherited from data, especially in classification problems where class and group imbalances are prevalent. Class imbalance (in the classification target)…

Machine Learning · Computer Science 2024-09-10 Emmanouil Panagiotou , Arjun Roy , Eirini Ntoutsi

Time dependent data is a main source of information in today's data driven world. Generating this type of data though has shown its challenges and made it an interesting research area in the field of generative machine learning. One such…

Machine Learning · Computer Science 2021-03-03 Kaleb E. Smith , Anthony O. Smith

The widespread adoption of wearable sensors has the potential to provide massive and heterogeneous time series data, driving the use of Artificial Intelligence in human sensing applications. However, data collection remains limited due to…

Machine Learning · Computer Science 2025-12-04 Flavio Di Martino , Franca Delmastro

Since neural networks play an increasingly important role in critical sectors, explaining network predictions has become a key research topic. Counterfactual explanations can help to understand why classifier models decide for particular…

Machine Learning · Computer Science 2022-07-05 Jana Lang , Martin Giese , Winfried Ilg , Sebastian Otte

A framework for the generation of synthetic time-series transmission-level load data is presented. Conditional generative adversarial networks are used to learn the patterns of a real dataset of hourly-sampled week-long load profiles and…

Systems and Control · Electrical Eng. & Systems 2021-07-09 Andrea Pinceti , Lalitha Sankar , Oliver Kosut

Forecasting attracts a lot of research attention in the electricity value chain. However, most studies concentrate on short-term forecasting of generation or consumption with a focus on systems and less on individual consumers. Even more…

With the rising adoption of Machine Learning across the domains like banking, pharmaceutical, ed-tech, etc, it has become utmost important to adopt responsible AI methods to ensure models are not unfairly discriminating against any group.…

Machine Learning · Computer Science 2022-12-02 Bhushan Chaudhari , Himanshu Chaudhary , Aakash Agarwal , Kamna Meena , Tanmoy Bhowmik

Generative Adversarial Networks (GANs) have shown remarkable performance in image synthesis tasks, but typically require a large number of training samples to achieve high-quality synthesis. This paper proposes a simple and effective…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Esther Robb , Wen-Sheng Chu , Abhishek Kumar , Jia-Bin Huang

Electrocardiogram (ECG) datasets tend to be highly imbalanced due to the scarcity of abnormal cases. Additionally, the use of real patients' ECGs is highly regulated due to privacy issues. Therefore, there is always a need for more ECG…

Machine Learning · Computer Science 2022-08-25 Edmond Adib , Fatemeh Afghah , John J. Prevost