We study here a Gaussian Mixture Model (GMM) with rare events data. In this case, the commonly used Expectation-Maximization (EM) algorithm exhibits extremely slow numerical convergence rate. To theor ...
BEIJING, Sept. 20 (Xinhua) -- Chinese residents' incomes have witnessed leapfrog growth over the past 75 years, rising from 49.7 yuan (about 7 U.S. dollars) in 1949 to 39,218 yuan in 2023, a report ...
This significantly supports the livelihoods of millions of people in low- and middle-income countries. In many countries, vaccine production and distribution often lack adherence to good manufacturing ...