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Ensemble smoothers are among the most successful and efficient techniques currently available for history matching. However, because these methods rely on Gaussian assumptions, their performance is severely degraded when the prior geology…

Variable selection for high-dimensional, highly correlated data has long been a challenging problem, often yielding unstable and unreliable models. We propose a resample-aggregate framework that exploits diffusion models' ability to…

统计方法学 · 统计学 2025-08-20 Minjie Wang , Xiaotong Shen , Wei Pan

In recent years, several models have improved the capacity to generate synthetic tabular datasets. However, such models focus on synthesizing simple columnar tables and are not useable on real-life data with complex structures. This paper…

机器学习 · 计算机科学 2022-02-07 Luca Canale , Nicolas Grislain , Grégoire Lothe , Johan Leduc

Recent work in synthetic data generation in the time-series domain has focused on the use of Generative Adversarial Networks. We propose a novel architecture for synthetically generating time-series data with the use of Variational…

机器学习 · 计算机科学 2021-12-08 Abhyuday Desai , Cynthia Freeman , Zuhui Wang , Ian Beaver

Synthetic datasets are important for evaluating and testing machine learning models. When evaluating real-life recommender systems, high-dimensional categorical (and sparse) datasets are often considered. Unfortunately, there are not many…

信息检索 · 计算机科学 2024-12-11 Miha Malenšek , Blaž Škrlj , Blaž Mramor , Jure Demšar

High-Level Synthesis (HLS) Design Space Exploration (DSE) is a widely accepted approach for efficiently exploring Pareto-optimal and optimal hardware solutions during the HLS process. Several HLS benchmarks and datasets are available for…

机器学习 · 计算机科学 2024-04-24 Yuchao Liao , Tosiron Adegbija , Roman Lysecky , Ravi Tandon

Data scarcity is one of the main obstacles of domain adaptation in spoken language understanding (SLU) due to the high cost of creating manually tagged SLU datasets. Recent works in neural text generative models, particularly latent…

计算与语言 · 计算机科学 2018-11-07 Kang Min Yoo , Youhyun Shin , Sang-goo Lee

A long-standing question for urban and regional planners pertains to the ability to describe urban patterns quantitatively. Cities' transport infrastructure, particularly street networks, provides an invaluable source of information about…

计算机与社会 · 计算机科学 2019-05-17 Kira Kempinska , Roberto Murcio

Evaluating AI systems that interact with humans requires understanding their behavior across diverse user populations, but collecting representative human data is often expensive or infeasible, particularly for novel technologies or…

Generative modelling has become the standard approach for synthesising tabular data. However, different use cases demand synthetic data to comply with different requirements to be useful in practice. In this survey, we review deep…

机器学习 · 计算机科学 2026-03-17 Mihaela Cătălina Stoian , Eleonora Giunchiglia , Thomas Lukasiewicz

We combine hierarchical Bayesian modeling with a flow-based deep generative network, in order to demonstrate that one can efficiently constraint numerical gravitational wave (GW) population models at a previously intractable complexity.…

天体物理仪器与方法 · 物理学 2020-07-07 Kaze W. K. Wong , Gabriella Contardo , Shirley Ho

Learning to sample from complex unnormalized distributions is a fundamental challenge in computational physics and machine learning. While score-based and variational methods have achieved success in continuous domains, extending them to…

机器学习 · 统计学 2026-03-11 Lei Li , Zhen Wang , Lishuo Zhang

Capturing the structured mixing within a population is key to the reliable projection of infectious disease dynamics and hence informed control. Both heterogeneity in the number of contacts and age-structured mixing have been repeatedly…

社会与信息网络 · 计算机科学 2026-03-17 Luke Murray Kearney , Emma L Davis , Matt J Keeling

Knowing where people live is a fundamental component of many decision making processes such as urban development, infectious disease containment, evacuation planning, risk management, conservation planning, and more. While bottom-up, survey…

人工智能 · 计算机科学 2017-08-31 Caleb Robinson , Fred Hohman , Bistra Dilkina

Deep generative models have been widely used for their ability to generate realistic data samples in various areas, such as images, molecules, text, and speech. One major goal of data generation is controllability, namely to generate new…

机器学习 · 计算机科学 2023-10-12 Bo Pan , Muran Qin , Shiyu Wang , Yifei Zhang , Liang Zhao

Deep learning models need a sufficient amount of data in order to be able to find the hidden patterns in it. It is the purpose of generative modeling to learn the data distribution, thus allowing us to sample more data and augment the…

机器学习 · 计算机科学 2024-11-28 José Fernando Núñez , Jamie Arjona , Javier Béjar

The Gaussianity assumption has been consistently criticized as a main limitation of the Variational Autoencoder (VAE) despite its efficiency in computational modeling. In this paper, we propose a new approach that expands the model capacity…

机器学习 · 统计学 2023-10-30 Seunghwan An , Jong-June Jeon

Modern generative models are usually designed to match target distributions directly in the data space, where the intrinsic dimension of data can be much lower than the ambient dimension. We argue that this discrepancy may contribute to the…

机器学习 · 计算机科学 2020-07-02 Zijun Zhang , Ruixiang Zhang , Zongpeng Li , Yoshua Bengio , Liam Paull

In this work, we develop a privacy-by-design generative model for synthesizing the activity diary of the travel population using state-of-art deep learning approaches. This proposed approach extends literature on population synthesis by…

机器学习 · 计算机科学 2021-01-01 Godwin Badu-Marfo , Bilal Farooq , Zachary Patterson

Metamaterials are emerging as a new paradigmatic material system to render unprecedented and tailorable properties for a wide variety of engineering applications. However, the inverse design of metamaterial and its multiscale system is…

计算工程、金融与科学 · 计算机科学 2020-09-17 Liwei Wang , Yu-Chin Chan , Faez Ahmed , Zhao Liu , Ping Zhu , Wei Chen