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Distributional Random Forest (DRF) is a flexible forest-based method to estimate the full conditional distribution of a multivariate output of interest given input variables. In this article, we introduce a variable importance algorithm for…

机器学习 · 统计学 2024-02-15 Clément Bénard , Jeffrey Näf , Julie Josse

Machine Learning (ML) algorithms, like Convolutional Neural Networks (CNN), Support Vector Machines (SVM), etc. have become widespread and can achieve high statistical performance. However their accuracy decreases significantly in…

分布式、并行与集群计算 · 计算机科学 2017-04-12 Zafar Takhirov , Joseph Wang , Marcia S. Louis , Venkatesh Saligrama , Ajay Joshi

In the recent COVID-19 pandemic, a wide range of epidemiological modelling approaches have been used to predict the effective reproduction number, R(t), and other COVID-19 related measures such as the daily rate of exponential growth, r(t).…

应用统计 · 统计学 2021-08-13 T. Maishman , S. Schaap , D. S. Silk , S. J. Nevitt , D. C. Woods , V. E. Bowman

I present three types of applications of generalized additive models (GAMs) to COVID-19 mortality rates in the US for the purpose of advancing methods to document inequities with respect to which communities suffered disproportionate…

应用统计 · 统计学 2022-12-01 Christian Testa

We propose a high dimensional Bayesian inference framework for learning heterogeneous dynamics of a COVID-19 model, with a specific application to the dynamics and severity of COVID-19 inside and outside long-term care (LTC) facilities. We…

统计方法学 · 统计学 2021-08-04 Peng Chen , Keyi Wu , Omar Ghattas

We demonstrate use of iteratively pruned deep learning model ensembles for detecting pulmonary manifestation of COVID-19 with chest X-rays. This disease is caused by the novel Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)…

图像与视频处理 · 电气工程与系统科学 2021-03-08 Sivaramakrishnan Rajaraman , Jen Siegelman , Philip O. Alderson , Lucas S. Folio , Les R. Folio , Sameer K. Antani

Modeling epidemic spread is critical for informing policy decisions aimed at mitigation. Accordingly, in this work we present a new data-driven method based on Gaussian process regression (GPR) to model epidemic spread through the…

机器学习 · 统计学 2025-06-23 Baike She , Lei Xin , Philip E. Paré , Matthew Hale

The continuously growing number of COVID-19 cases pressures healthcare services worldwide. Accurate short-term forecasting is thus vital to support country-level policy making. The strategies adopted by countries to combat the pandemic…

统计方法学 · 统计学 2021-04-07 Thiago de Paula Oliveira , Rafael de Andrade Moral

The COVID-19 epidemic has become a major safety and health threat worldwide. Imaging diagnosis is one of the most effective ways to screen COVID-19. This project utilizes several open-source or public datasets to present an open-source…

图像与视频处理 · 电气工程与系统科学 2020-07-21 Yi Zhong

This paper proposes a segmentation method of infection regions in the lung from CT volumes of COVID-19 patients. COVID-19 spread worldwide, causing many infected patients and deaths. CT image-based diagnosis of COVID-19 can provide quick…

图像与视频处理 · 电气工程与系统科学 2022-01-11 Masahiro Oda , Tong Zheng , Yuichiro Hayashi , Yoshito Otake , Masahiro Hashimoto , Toshiaki Akashi , Shigeki Aoki , Kensaku Mori

COVID-19 spread across the globe at an immense rate has left healthcare systems incapacitated to diagnose and test patients at the needed rate. Studies have shown promising results for detection of COVID-19 from viral bacterial pneumonia in…

图像与视频处理 · 电气工程与系统科学 2020-10-14 Saman Motamed , Patrik Rogalla , Farzad Khalvati

Graph convolutional neural networks (GCNs) have shown tremendous promise in addressing data-intensive challenges in recent years. In particular, some attempts have been made to improve predictions of Susceptible-Infected-Recovered (SIR)…

机器学习 · 统计学 2025-01-07 Petr Kisselev , Padmanabhan Seshaiyer

By the start of 2020, the novel coronavirus disease (COVID-19) has been declared a worldwide pandemic. Because of the severity of this infectious disease, several kinds of research have focused on combatting its ongoing spread. One…

图像与视频处理 · 电气工程与系统科学 2021-05-19 Safa Ben Atitallah , Maha Driss , Wadii Boulila , Henda Ben Ghézala

An important component of every country's COVID-19 response is fast and efficient testing - to identify and isolate cases, as well as for early detection of local hotspots. For many countries, producing a sufficient number of tests has been…

统计方法学 · 统计学 2020-10-27 J. Batson , N. Bottman , Y. Cooper , F. Janda

We propose the novel use of a generative adversarial network (GAN) (i) to make predictions in time (PredGAN) and (ii) to assimilate measurements (DA-PredGAN). In the latter case, we take advantage of the natural adjoint-like properties of…

机器学习 · 计算机科学 2023-01-26 Vinicius L. S. Silva , Claire E. Heaney , Yaqi Li , Christopher C. Pain

The COVID-19 pandemic is one of the most challenging healthcare crises during the 21st century. As the virus continues to spread on a global scale, the majority of efforts have been on the development of vaccines and the mass immunization…

机器学习 · 计算机科学 2021-09-07 Meysam Effati , Yu-Chen Sun , Hani E. Naguib , Goldie Nejat

A system to model the spread of COVID-19 cases after lockdown has been proposed, to define new preventive measures based on hotspots, using the graph clustering algorithm. This method allows for more lenient measures in areas less prone to…

社会与信息网络 · 计算机科学 2020-11-03 Varun Nagesh Jolly Behera , Ashish Ranjan , Motahar Reza

The recent worldwide outbreak of the novel coronavirus (COVID-19) has opened up new challenges to the research community. Artificial intelligence (AI) driven methods can be useful to predict the parameters, risks, and effects of such an…

种群与进化 · 定量生物学 2020-09-17 Ratnabali Pal , Arif Ahmed Sekh , Samarjit Kar , Dilip K. Prasad

As a highly infectious respiratory disease, COVID-19 has become a pandemic that threatens global health. Without an effective treatment, non-pharmaceutical interventions, such as travel restrictions, have been widely promoted to mitigate…

社会与信息网络 · 计算机科学 2020-06-25 Qianqian Sun , Yixuan Pan , Weiyi Zhou , Chenfeng Xiong , Lei Zhang

We propose a method for transfer learning in nonparametric regression using a random forest (RF) with distance covariance-based feature weights, assuming the unknown source and target regression functions are sparsely different. Our method…

机器学习 · 统计学 2026-03-17 Chenze Li , Subhadeep Paul
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