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We consider a version of the classical group testing problem motivated by PCR testing for COVID-19. In the so-called tropical group testing model, the outcome of a test is the lowest cycle threshold (Ct) level of the individuals pooled…

信息论 · 计算机科学 2024-10-15 Vivekanand Paligadu , Oliver Johnson , Matthew Aldridge

In the era of open data, Poisson and other count regression models are increasingly important. Still, conventional Poisson regression has remaining issues in terms of identifiability and computational efficiency. Especially, due to an…

统计方法学 · 统计学 2022-01-19 Daisuke Murakami , Tomoko Matsui

Group testing can save testing resources in the context of the ongoing COVID-19 pandemic. In group testing, we are given $n$ samples, one per individual, and arrange them into $m < n$ pooled samples, where each pool is obtained by mixing a…

应用统计 · 统计学 2023-11-03 Ritesh Goenka , Shu-Jie Cao , Chau-Wai Wong , Ajit Rajwade , Dror Baron

With the ongoing COVID-19 pandemic, understanding the characteristics of the virus has become an important and challenging task in the scientific community. While tests do exist for COVID-19, the goal of our research is to explore other…

计算机视觉与模式识别 · 计算机科学 2021-12-02 Jacob Householder , Andrew Householder , John Paul Gomez-Reed , Fredrick Park , Shuai Zhang

The current pandemic, caused by the outbreak of a novel coronavirus (COVID-19) in December 2019, has led to a global emergency that has significantly impacted economies, healthcare systems and personal wellbeing all around the world.…

图像与视频处理 · 电气工程与系统科学 2021-01-19 Xiaocong Chen , Lina Yao , Tao Zhou , Jinming Dong , Yu Zhang

The exponential increase in COVID-19 patients is overwhelming healthcare systems across the world. With limited testing kits, it is impossible for every patient with respiratory illness to be tested using conventional techniques (RT-PCR).…

图像与视频处理 · 电气工程与系统科学 2020-04-22 Arpan Mangal , Surya Kalia , Harish Rajgopal , Krithika Rangarajan , Vinay Namboodiri , Subhashis Banerjee , Chetan Arora

Research significance: The extended version of this paper has been accepted by IEEE Internet of Things journal (DOI: 10.1109/JIOT.2020.2991456), please cite the journal version. During the epidemic prevention and control period, our study…

机器学习 · 计算机科学 2020-12-22 Yunlu Wang , Menghan Hu , Qingli Li , Xiao-Ping Zhang , Guangtao Zhai , Nan Yao

The usual development cycles are too slow for the development of vaccines, diagnostics and treatments in pandemics such as the ongoing SARS-CoV-2 pandemic. Given the pressure in such a situation, there is a risk that findings of early…

应用统计 · 统计学 2020-10-12 Sarah Friedrich , Tim Friede

We argue that frequent sampling of the fraction of infected people (either by random testing or by analysis of sewage water), is central to managing the COVID-19 pandemic because it both measures in real time the key variable controlled by…

种群与进化 · 定量生物学 2020-07-24 Markus Müller , Peter M. Derlet , Christopher Mudry , Gabriel Aeppli

The newly discovered Corona virus Disease 2019 (COVID-19) has been globally spreading and causing hundreds of thousands of deaths around the world as of its first emergence in late 2019. Computed tomography (CT) scans have shown distinctive…

Background: To assist policy makers in taking adequate decisions to stop the spread of COVID-19 pandemic, accurate forecasting of the disease propagation is of paramount importance. Materials and Methods: This paper presents a deep learning…

社会与信息网络 · 计算机科学 2020-09-28 Ahmed Ben Said , Abdelkarim Erradi , Hussein Aly , Abdelmonem Mohamed

Variable selection can be performed by testing conditional independence (CI) between each predictor and the response, given the other predictors. A doubly robust and powerful option for these CI tests is the projected covariance measure…

统计方法学 · 统计学 2025-11-10 Abhinav Chakraborty , Jeffrey Zhang , Eugene Katsevich

We propose a new sampling algorithm combining two quite powerful ideas in the Markov chain Monte Carlo literature -- adaptive Metropolis sampler and two-stage Metropolis-Hastings sampler. The proposed sampling method will be particularly…

统计计算 · 统计学 2021-01-05 Anirban Mondal , Kai Yin , Abhijit Mandal

The outbreak of COVID-19 has shocked the entire world with its fairly rapid spread and has challenged different sectors. One of the most effective ways to limit its spread is the early and accurate diagnosing infected patients. Medical…

We present an Extended Kalman Filter framework for system identification and control of a stochastic high-dimensional epidemic model. The scale and severity of the COVID-19 emergency have highlighted the need for accurate forecasts of the…

系统与控制 · 电气工程与系统科学 2021-06-29 Francisco Barreras , Mikhail Hayhoe , Hamed Hassani , Victor M. Preciado

Coronavirus disease 2019 (COVID-19) is the highly contagious illness caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The standard diagnostic testing procedure for COVID-19 is testing a nasopharyngeal swab for…

图像与视频处理 · 电气工程与系统科学 2021-10-14 Vishal Shenoy , Sachin B. Malik

COVID-19 is a global health problem. Consequently, early detection and analysis of the infection patterns are crucial for controlling infection spread as well as devising a treatment plan. This work proposes a two-stage deep Convolutional…

图像与视频处理 · 电气工程与系统科学 2020-09-21 Saddam Hussain Khan , Anabia Sohail , Asifullah Khan , Yeon Soo Lee

Patients with the COVID-19 infection may have pneumonia-like symptoms as well as respiratory problems which may harm the lungs. From medical images, coronavirus illness may be accurately identified and predicted using a variety of machine…

计算机视觉与模式识别 · 计算机科学 2023-02-20 Tareque Rahman Ornob , Gourab Roy , Enamul Hassan

To strengthen inferences meta analyses are commonly used to summarize information from a set of independent studies. In some cases, though, the data may not satisfy the assumptions underlying the meta analysis. Using three Bayesian methods…

应用统计 · 统计学 2022-04-07 Dexter Cahoy , Joseph Sedransk

This article introduces the sequential Kalman filter, a computationally scalable approach for online changepoint detection with temporally correlated data. The temporal correlation was not considered in the Bayesian online changepoint…

应用统计 · 统计学 2024-01-02 Hanmo Li , Yuedong Wang , Mengyang Gu