4 papers
Estimating Active Cases of COVID-19
Javier Álvarez, Carlos Baquero, Elisa Cabana +17
Having accurate and timely data on confirmed active COVID-19 cases is challenging, since it depends on testing capacity and the availability of an appropriate infrastructure to per…
CoronaSurveys: Using Surveys with Indirect Reporting to Estimate the Incidence and Evolution of Epidemics
Oluwasegun Ojo, Augusto García-Agundez, Benjamin Girault +22
The world is suffering from a pandemic called COVID-19, caused by the SARS-CoV-2 virus. National governments have problems evaluating the reach of the epidemic, due to having limit…
Robust regression based on shrinkage estimators
Elisa Cabana, Rosa E. Lillo, Henry Laniado
A robust estimator is proposed for the parameters that characterize the linear regression problem. It is based on the notion of shrinkages, often used in Finance and previously stu…
Multivariate outlier detection based on a robust Mahalanobis distance with shrinkage estimators
Elisa Cabana, Rosa E. Lillo, Henry Laniado
A collection of robust Mahalanobis distances for multivariate outlier detection is proposed, based on the notion of shrinkage. Robust intensity and scaling factors are optimally es…