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Deep learning-based techniques have been introduced into the field of trajectory optimization in recent years. Deep Neural Networks (DNNs) are trained and used as the surrogates of conventional optimization process. They can provide low…

Machine Learning · Computer Science 2022-09-27 Ruida Xie , Andrew G. Dempster

Synthetic data is an emerging technology that can significantly accelerate the development and deployment of AI machine learning pipelines. In this work, we develop high-fidelity time-series generators, the SigWGAN, by combining…

Machine Learning · Computer Science 2021-11-03 Hao Ni , Lukasz Szpruch , Marc Sabate-Vidales , Baoren Xiao , Magnus Wiese , Shujian Liao

The scarcity and low diversity of well-annotated automotive radar datasets often limit the performance of deep-learning-based environmental perception. To overcome these challenges, we propose a conditional generative framework for…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Zhaoze Wang , Changxu Zhang , Tai Fei , Christopher Grimm , Yi Jin , Claas Tebruegge , Ernst Warsitz , Markus Gardill

Generative Adversarial Networks (GANs) have shown immense potential in fields such as text and image generation. Only very recently attempts to exploit GANs to statistical-mechanics models have been reported. Here we quantitatively test…

Statistical Mechanics · Physics 2024-05-07 Daniele Lanzoni , Olivier Pierre-Louis , Francesco Montalenti

A method for statistical parametric speech synthesis incorporating generative adversarial networks (GANs) is proposed. Although powerful deep neural networks (DNNs) techniques can be applied to artificially synthesize speech waveform, the…

Sound · Computer Science 2017-09-26 Yuki Saito , Shinnosuke Takamichi , Hiroshi Saruwatari

Data generation is a fundamental research problem in data management due to its diverse use cases, ranging from testing database engines to data-specific applications. However, real-world entities often involve complex interactions that…

Databases · Computer Science 2024-12-13 Fan Li , Xiaoyang Wang , Dawei Cheng , Cong Chen , Ying Zhang , Xuemin Lin

Stochastic generators are essential to produce synthetic realizations that preserve target statistical properties. We propose GenFormer, a stochastic generator for spatio-temporal multivariate stochastic processes. It is constructed using a…

Machine Learning · Computer Science 2024-02-06 Haoran Zhao , Wayne Isaac Tan Uy

This paper explores the application of emerging machine learning methods from image super-resolution (SR) to the task of statistical downscaling. We specifically focus on convolutional neural network-based Generative Adversarial Networks…

Atmospheric and Oceanic Physics · Physics 2023-09-20 Nicolaas J. Annau , Alex J. Cannon , Adam H. Monahan

Multivariate time series forecasting is a challenging task because the data involves a mixture of long- and short-term patterns, with dynamic spatio-temporal dependencies among variables. Existing graph neural networks (GNN) typically model…

Machine Learning · Computer Science 2021-12-08 Zhuoling Li , Gaowei Zhang , Lingyu Xu , Jie Yu

One of the limiting factors in training data-driven, rare-event prediction algorithms is the scarcity of the events of interest resulting in an extreme imbalance in the data. There have been many methods introduced in the literature for…

Machine Learning · Computer Science 2021-05-18 Yang Chen , Dustin J. Kempton , Azim Ahmadzadeh , Rafal A. Angryk

We present a generic framework for spatio-temporal (ST) data modeling, analysis, and forecasting, with a special focus on data that is sparse in both space and time. Our multi-scaled framework is a seamless coupling of two major components:…

Machine Learning · Computer Science 2018-04-04 Bao Wang , Xiyang Luo , Fangbo Zhang , Baichuan Yuan , Andrea L. Bertozzi , P. Jeffrey Brantingham

With the rising demand for wireless services and increased awareness of the need for data protection, existing network traffic analysis and management architectures are facing unprecedented challenges in classifying and synthesizing the…

Machine Learning · Computer Science 2023-02-02 Yong Xiao , Rong Xia , Yingyu Li , Guangming Shi , Diep N. Nguyen , Dinh Thai Hoang , Dusit Niyato , Marwan Krunz

Generative adversarial networks are the state of the art approach towards learned synthetic image generation. Although early successes were mostly unsupervised, bit by bit, this trend has been superseded by approaches based on labelled…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Ricard Durall , Kalun Ho , Franz-Josef Pfreundt , Janis Keuper

We present a comparative study of methods for generating realistic, constrained small- to medium-scale road networks with built-in redundancy. In this research, we evaluate the proposed Evolutionary Algorithm (EA) with connectivity and…

Neural and Evolutionary Computing · Computer Science 2026-03-24 Artur Morys-Magiera , Marek Długosz , Paweł Skruch

We introduce the \emph{Symplectic Generative Network (SGN)}, a deep generative model that leverages Hamiltonian mechanics to construct an invertible, volume-preserving mapping between a latent space and the data space. By endowing the…

Machine Learning · Statistics 2025-10-30 Agnideep Aich , Ashit Aich

Real-time traffic prediction from high-fidelity spatiotemporal traffic sensor datasets is an important problem for intelligent transportation systems and sustainability. However, it is challenging due to the complex topological dependencies…

Social and Information Networks · Computer Science 2016-07-22 Dingxiong Deng , Cyrus Shahabi , Ugur Demiryurek , Linhong Zhu , Rose Yu , Yan Liu

Smart vehicles produce large amounts of data, much of which is sensitive and at risk of privacy breaches. As attackers increasingly exploit anonymised metadata within these datasets to profile drivers, it's important to find solutions that…

Cryptography and Security · Computer Science 2024-10-14 Krish Parikh

Spatio-temporal graph neural networks (ST-GNNs) have achieved notable success in structured domains such as road traffic and public transportation, where spatial entities can be naturally represented as fixed nodes. In contrast, many…

Machine Learning · Computer Science 2025-12-24 Jeehong Kim , Youngseok Hwang , Minchan Kim , Sungho Bae , Hyunwoo Park

The paper proposes a data-driven approach to air-to-ground channel estimation in a millimeter-wave wireless network on an unmanned aerial vehicle. Unlike traditional centralized learning methods that are specific to certain geographical…

Networking and Internet Architecture · Computer Science 2023-05-31 Saira Bano , Pietro Cassarà , Nicola Tonellotto , Alberto Gotta

Generative models able to synthesize layouts of different kinds (e.g. documents, user interfaces or furniture arrangements) are a useful tool to aid design processes and as a first step in the generation of synthetic data, among other…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Diego Martin Arroyo , Janis Postels , Federico Tombari