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相关论文: SurvivalGAN: Generating Time-to-Event Data for Sur…

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A new model for generating survival trajectories and data based on applying an autoencoder of a specific structure is proposed. It solves three tasks. First, it provides predictions in the form of the expected event time and the survival…

机器学习 · 计算机科学 2024-02-20 Andrei V. Konstantinov , Stanislav R. Kirpichenko , Lev V. Utkin

Generating time series data using Generative Adversarial Networks (GANs) presents several prevalent challenges, such as slow convergence, information loss in embedding spaces, instability, and performance variability depending on the series…

机器学习 · 计算机科学 2024-09-24 MohammadReza EskandariNasab , Shah Muhammad Hamdi , Soukaina Filali Boubrahimi

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…

机器学习 · 计算机科学 2025-09-01 Xuan Hou , Shuhan Liu , Zhaohui Peng , Yaohui Chu , Yue Zhang , Yining Wang

Time series data generation has drawn increasing attention in recent years. Several generative adversarial network (GAN) based methods have been proposed to tackle the problem usually with the assumption that the targeted time series data…

机器学习 · 计算机科学 2021-11-17 Hengzhi Pei , Kan Ren , Yuqing Yang , Chang Liu , Tao Qin , Dongsheng Li

Survival analysis provides a powerful statistical framework for modeling time-to-event outcomes in the presence of censoring. However, selecting an appropriate estimator from the many specialized survival approaches often requires…

机器学习 · 计算机科学 2026-05-18 Shi-ang Qi , Vahid Balazadeh , Michael Cooper , Russell Greiner , Rahul G. Krishnan

Synthetic data generation becomes prevalent as a solution to privacy leakage and data shortage. Generative models are designed to generate a realistic synthetic dataset, which can precisely express the data distribution for the real…

机器学习 · 计算机科学 2021-04-22 Bingyang Wen , Luis Oliveros Colon , K. P. Subbalakshmi , R. Chandramouli

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…

机器学习 · 计算机科学 2023-02-22 Sam Dannels

It is abundantly clear that time dependent data is a vital source of information in the world. The challenge has been for applications in machine learning to gain access to a considerable amount of quality data needed for algorithm…

机器学习 · 计算机科学 2020-07-01 Kaleb E Smith , Anthony O Smith

Privacy is an important concern for our society where sharing data with partners or releasing data to the public is a frequent occurrence. Some of the techniques that are being used to achieve privacy are to remove identifiers, alter…

数据库 · 计算机科学 2018-07-04 Noseong Park , Mahmoud Mohammadi , Kshitij Gorde , Sushil Jajodia , Hongkyu Park , Youngmin Kim

Survival analysis is a statistical technique used to estimate the time until an event occurs. Although it is applied across a wide range of fields, adjusting for reporting delays under practical constraints remains a significant challenge…

机器学习 · 统计学 2025-10-27 Yuta Shikuri , Hironori Fujisawa

Generative Adversarial Networks (GANs) are powerful models able to synthesize data samples closely resembling the distribution of real data, yet the diversity of those generated samples is limited due to the so-called mode collapse…

计算机视觉与模式识别 · 计算机科学 2023-06-26 Jan Dubiński , Kamil Deja , Sandro Wenzel , Przemysław Rokita , Tomasz Trzciński

This study explores the application of generative adversarial networks in financial market supervision, especially for solving the problem of data imbalance to improve the accuracy of risk prediction. Since financial market data are often…

计算金融 · 定量金融 2024-12-23 Mohan Jiang , Yaxin Liang , Siyuan Han , Kunyuan Ma , Yuan Chen , Zhen Xu

Financial simulators play an important role in enhancing forecasting accuracy, managing risks, and fostering strategic financial decision-making. Despite the development of financial market simulation methodologies, existing frameworks…

机器学习 · 计算机科学 2024-02-13 Haochong Xia , Shuo Sun , Xinrun Wang , Bo An

Synthetic data generation, a cornerstone of Generative Artificial Intelligence, promotes a paradigm shift in data science by addressing data scarcity and privacy while enabling unprecedented performance. As synthetic data becomes more…

机器学习 · 统计学 2024-03-12 Xiaotong Shen , Yifei Liu , Rex Shen

The limited data availability due to strict privacy regulations and significant resource demands severely constrains biomedical time-series AI development, which creates a critical gap between data requirements and accessibility. Synthetic…

机器学习 · 计算机科学 2025-11-25 Youngjoon Lee , Seongmin Cho , Yehhyun Jo , Jinu Gong , Hyunjoo Jenny Lee , Joonhyuk Kang

Deep generative models are increasingly used to gain insights in the geospatial data domain, e.g., for climate data. However, most existing approaches work with temporal snapshots or assume 1D time-series; few are able to capture…

计算机视觉与模式识别 · 计算机科学 2021-04-27 Konstantin Klemmer , Sudipan Saha , Matthias Kahl , Tianlin Xu , Xiao Xiang Zhu

Synthetic data generation overcomes limitations of real-world machine learning. Traditional methods are valuable for augmenting costly datasets but only optimize one criterion: realism. In this paper, we tackle the problem of generating…

机器学习 · 计算机科学 2021-11-16 Chance N DeSmet , Diane J Cook

Survival analysis is a hotspot in statistical research for modeling time-to-event information with data censorship handling, which has been widely used in many applications such as clinical research, information system and other fields with…

机器学习 · 计算机科学 2018-11-14 Kan Ren , Jiarui Qin , Lei Zheng , Zhengyu Yang , Weinan Zhang , Lin Qiu , Yong Yu

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…

统计金融 · 定量金融 2026-01-21 Fan Zhang , Jiabin Luo , Zheng Zhang , Shuanghong Huang , Zhipeng Liu , Yu Chen

Despite various breakthroughs in machine learning and data analysis techniques for improving smart operation and management of urban water infrastructures, some key limitations obstruct this progress. Among these shortcomings, the absence…

机器学习 · 计算机科学 2023-02-01 Amin E. Bakhshipour , Alireza Koochali , Ulrich Dittmer , Ali Haghighi , Sheraz Ahmad , Andreas Dengel