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Early screening of patients is a critical issue in order to assess immediate and fast responses against the spread of COVID-19. The use of nasopharyngeal swabs has been considered the most viable approach; however, the result is not…

图像与视频处理 · 电气工程与系统科学 2022-12-29 Carlo Alberto Barbano , Enzo Tartaglione , Claudio Berzovini , Marco Calandri , Marco Grangetto

In response to the need for rapid and accurate COVID-19 diagnosis during the global pandemic, we present a two-stage framework that leverages pseudo labels for domain adaptation to enhance the detection of COVID-19 from CT scans. By…

图像与视频处理 · 电气工程与系统科学 2024-03-19 Runtian Yuan , Qingqiu Li , Junlin Hou , Jilan Xu , Yuejie Zhang , Rui Feng , Hao Chen

Several Bayesian estimation based heuristics have been developed to perform quantum state tomography (QST). Their ability to quantify uncertainties using region estimators and include a priori knowledge of the experimentalists makes this…

量子物理 · 物理学 2021-09-16 Syed Muhammad Kazim , Ahmad Farooq , Junaid ur Rehman , Hyundong Shin

The world is still overwhelmed by the spread of the COVID-19 virus. With over 250 Million infected cases as of November 2021 and affecting 219 countries and territories, the world remains in the pandemic period. Detecting COVID-19 using the…

图像与视频处理 · 电气工程与系统科学 2022-10-27 Gargi Desai , Nelly Elsayed , Zag Elsayed , Murat Ozer

We consider a two-stage procedure (TSP) for estimating an inverse regression function at a given point, where isotonic regression is used at stage one to obtain an initial estimate and a local linear approximation in the vicinity of this…

统计理论 · 数学 2011-05-17 Runlong Tang , Moulinath Banerjee , George Michailidis

The gold standard for COVID-19 is RT-PCR, testing facilities for which are limited and not always optimally distributed. Test results are delayed, which impacts treatment. Expert radiologists, one of whom is a co-author, are able to…

计算机视觉与模式识别 · 计算机科学 2021-02-17 Kartikeya Badola , Sameer Ambekar , Himanshu Pant , Sumit Soman , Anuradha Sural , Rajiv Narang , Suresh Chandra , Jayadeva

In this worldwide spread of SARS-CoV-2 (COVID-19) infection, it is of utmost importance to detect the disease at an early stage especially in the hot spots of this epidemic. There are more than 110 Million infected cases on the globe,…

图像与视频处理 · 电气工程与系统科学 2021-02-23 Sohail Iqbal , H. Fareed Ahmed , Talha Qaiser , Muhammad Imran Qureshi , Nasir Rajpoot

Monte Carlo methods are often necessary for the implementation of optimal Bayesian estimators. A fundamental technique that can be used to generate samples from virtually any target probability distribution is the so-called rejection…

统计计算 · 统计学 2011-11-22 Luca Martino , Joaquín Míguez

The COVID-19 crisis highlighted the importance of non-medical interventions, such as testing and isolation of infected individuals, in the control of epidemics. Here, we show how to minimize testing needs while maintaining the number of…

系统与控制 · 电气工程与系统科学 2024-07-04 D. Acemoglu , A. Fallah , A. Giometto , D. Huttenlocher , A. Ozdaglar , F. Parise , S. Pattathil

Controlling the COVID-19 pandemic is an urgent global challenge. The rapid geographic spread of SARS-CoV-2 directly reflects the social structure. Before effective vaccines and treatments are widely available, we have to rely on…

物理与社会 · 物理学 2021-08-11 Karina I Mazzitello , Yi Jiang , Constancio M Arizmendi

In this paper, we propose a continuous-time stochastic intensity model, namely, two-phase dynamic contagion process(2P-DCP), for modelling the epidemic contagion of COVID-19 and investigating the lockdown effect based on the dynamic…

物理与社会 · 物理学 2020-06-30 Zezhun Chen , Angelos Dassios , Valerie Kuan , Jia Wei Lim , Yan Qu , Budhi Surya , Hongbiao Zhao

This technical report proposes the use of a deep convolutional neural network as a preliminary diagnostic method in the analysis of chest computed tomography images from patients with symptoms of Severe Acute Respiratory Syndrome (SARS) and…

图像与视频处理 · 电气工程与系统科学 2022-08-24 Victor Felipe Reis-Silva

With the rapidly worldwide spread of Coronavirus disease (COVID-19), it is of great importance to conduct early diagnosis of COVID-19 and predict the time that patients might convert to the severe stage, for designing effective treatment…

图像与视频处理 · 电气工程与系统科学 2020-10-13 Xiaofeng Zhu , Bin Song , Feng Shi , Yanbo Chen , Rongyao Hu , Jiangzhang Gan , Wenhai Zhang , Man Li , Liye Wang , Yaozong Gao , Fei Shan , Dinggang Shen

Space-time adaptive processing (STAP) algorithms with coprime arrays can provide good clutter suppression potential with low cost in airborne radar systems as compared with their uniform linear arrays counterparts. However, the performance…

信号处理 · 电气工程与系统科学 2020-01-07 X. Wang , Z. Yang , J. Huang , R. C. de Lamare

We consider an experiment with at least two stages or batches and $O(N)$ subjects per batch. First, we propose a semiparametric treatment effect estimator that efficiently pools information across the batches, and show it asymptotically…

统计方法学 · 统计学 2023-09-28 Harrison H. Li , Art B. Owen

We found that the real time reverse transcription-polymerase chain reaction (RT-PCR) detection of viral RNA from sputum or nasopharyngeal swab has a relatively low positive rate in the early stage to determine COVID-19 (named by the World…

This paper extends our previous method for COVID-19 diagnosis, proposing an enhanced solution for detecting COVID-19 from computed tomography (CT) images. To decrease model misclassifications, two key steps of image processing were…

图像与视频处理 · 电气工程与系统科学 2024-05-28 Kenan Morani

The group testing problem is concerned with identifying a small number $k \sim n^\theta$ for $\theta \in (0,1)$ of infected individuals in a large population of size $n$. At our disposal is a testing procedure that allows us to test groups…

离散数学 · 计算机科学 2019-11-19 Max Hahn-Klimroth , Philipp Loick

The COVID-19 is sweeping the world with deadly consequences. Its contagious nature and clinical similarity to other pneumonias make separating subjects contracted with COVID-19 and non-COVID-19 viral pneumonia a priority and a challenge.…

The rapid spread of COVID-19 and the emergence of new variants underscore the importance of effective screening measures. Rapid diagnosis and subsequent quarantine of infected individuals can prevent further spread of the virus in society.…