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Training deep learning models that generalize well to live deployment is a challenging problem in the financial markets. The challenge arises because of high dimensionality, limited observations, changing data distributions, and a low…

Statistical Finance · Quantitative Finance 2019-12-20 Brandon Da Silva , Sylvie Shang Shi

Financial datasets often suffer from bias that can lead to unfair decision-making in automated systems. In this work, we propose FairFinGAN, a WGAN-based framework designed to generate synthetic financial data while mitigating bias with…

Machine Learning · Computer Science 2026-03-06 Tai Le Quy , Dung Nguyen Tuan , Trung Nguyen Thanh , Duy Tran Cong , Huyen Giang Thi Thu , Frank Hopfgartner

Despite proposing a quantum generative model for time series that successfully learns correlated series with multiple Brownian motions, the model has not been adapted and evaluated for financial problems. In this study, a time-series…

Quantum Physics · Physics 2024-05-21 Shun Okumura , Masayuki Ohzeki , Masaya Abe

Data plays a fundamental role in consolidating markets, services, and products in the digital financial ecosystem. However, the use of real data, especially in the financial context, can lead to privacy risks and access restrictions,…

Generative models for financial time series often create data that look realistic and even reproduce stylized facts such as fat tails or volatility clustering. However, these apparent successes break down under trading backtests: models…

Statistical Finance · Quantitative Finance 2026-01-21 Fan Zhang , Jiabin Luo , Zheng Zhang , Shuanghong Huang , Zhipeng Liu , Yu Chen

Synthetic data generation has emerged as a promising approach to address the challenges of using sensitive financial data in machine learning applications. By leveraging generative models, such as Generative Adversarial Networks (GANs) and…

Machine Learning · Computer Science 2025-10-31 James Meldrum , Basem Suleiman , Fethi Rabhi , Muhammad Johan Alibasa

Generating synthetic financial time series data that accurately reflects real-world market dynamics holds tremendous potential for various applications, including portfolio optimization, risk management, and large scale machine learning. We…

Mathematical Finance · Quantitative Finance 2025-11-05 Chung I Lu , Julian Sester

Synthetic time series are often used in practical applications to augment the historical time series dataset for better performance of machine learning algorithms, amplify the occurrence of rare events, and also create counterfactual…

Machine Learning · Computer Science 2023-09-18 Andrea Coletta , Sriram Gopalakrishan , Daniel Borrajo , Svitlana Vyetrenko

The generation of synthetic financial data is a critical technology in the financial domain, addressing challenges posed by limited data availability. Traditionally, statistical models have been employed to generate synthetic data. However,…

Computational Finance · Quantitative Finance 2025-03-07 Yuki Tanaka , Ryuji Hashimoto , Takehiro Takayanagi , Zhe Piao , Yuri Murayama , Kiyoshi Izumi

In this paper, we present a novel approach to the generation of virtual scenarios of multivariate financial data of arbitrary length and composition of assets. With this approach, decades of realistic time-synchronized data can be simulated…

Computational Finance · Quantitative Finance 2018-02-07 Javier Franco-Pedroso , Joaquin Gonzalez-Rodriguez , Jorge Cubero , Maria Planas , Rafael Cobo , Fernando Pablos

Neural network based data-driven market simulation unveils a new and flexible way of modelling financial time series without imposing assumptions on the underlying stochastic dynamics. Though in this sense generative market simulation is…

Statistical Finance · Quantitative Finance 2020-06-26 Hans Bühler , Blanka Horvath , Terry Lyons , Imanol Perez Arribas , Ben Wood

Quantum generative adversarial networks (QGANs) have been investigated as a method for generating synthetic data with the goal of augmenting training data sets for neural networks. This is especially relevant for financial time series,…

The financial industry is increasingly seeking robust methods to address the challenges posed by data scarcity and low signal-to-noise ratios, which limit the application of deep learning techniques in stock market analysis. This paper…

Machine Learning · Computer Science 2025-01-03 Guangming Che

A common problem when forecasting rare events, such as recessions, is limited data availability. Recent advancements in deep learning and generative adversarial networks (GANs) make it possible to produce high-fidelity synthetic data in…

Machine Learning · Computer Science 2023-02-22 Sam Dannels

Synthetic financial data provides a practical solution to the privacy, accessibility, and reproducibility challenges that often constrain empirical research in quantitative finance. This paper investigates the use of deep generative models,…

Statistical Finance · Quantitative Finance 2025-12-30 Christophe D. Hounwanou , Yae Ulrich Gaba

Time-series forecasting is a critical task across many domains, from engineering to economics, where accurate predictions drive strategic decisions. However, applying advanced deep learning models in challenging, volatile domains like…

Machine Learning · Computer Science 2026-02-23 Andrzej Podobiński , Jarosław A. Chudziak

Imagine generating a city's electricity demand pattern based on weather, the presence of an electric vehicle, and location, which could be used for capacity planning during a winter freeze. Such real-world time series are often enriched…

Machine Learning · Computer Science 2025-10-31 Sai Shankar Narasimhan , Shubhankar Agarwal , Oguzhan Akcin , Sujay Sanghavi , Sandeep Chinchali

Data scarcity and confidentiality in finance often impede model development and robust testing. This paper presents a unified multi-criteria evaluation framework for synthetic financial data and applies it to three representative generative…

Machine Learning · Computer Science 2025-12-29 Christophe D. Hounwanou , Yae Ulrich Gaba , Pierre Ntakirutimana

Time series forecasting is critical in numerous real-world applications, requiring accurate predictions of future values based on observed patterns. While traditional forecasting techniques work well in in-domain scenarios with ample data,…

Machine Learning · Computer Science 2024-11-26 Liran Nochumsohn , Michal Moshkovitz , Orly Avner , Dotan Di Castro , Omri Azencot

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
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