id author title date pages extension mime words sentences flesch summary cache txt cord-332086-hnn00byf Dolgikh, S. Identifying Explosive Cases with Unsupervised Machine Learning 2020-05-22 .txt text/plain 2670 133 45 An analysis of a combined dataset of Wave 1 and 2 cases, aligned at approximately Local Time Zero + 2 months with unsupervised machine learning methods such as PCA and deep autoencoder dimensionality reduction allows to clearly separate milder background cases from those with more rapid and aggressive onset of the epidemics. The methodology is based on processing the input data expressed as a set of observable parameters that were identified and described in the study with unsupervised machine learning methods to identify and extract a smaller set of the most informative components. In many cases, evaluating distributions of data in the representations of informative components such as principal components in PCA or dimensionality reduction with neural network autoencoder models allows to identify and separate classes in the data by essential characteristics that can be linked to the outcome. ./cache/cord-332086-hnn00byf.txt ./txt/cord-332086-hnn00byf.txt