The evaluation system of college students' physical fitness is a multi-level and multi-objective comprehensive evaluation system. The current evaluation system means and methods are relatively simple, ...

The problem of least squares regression of a d-dimensional unknown parameter is considered. A stochastic gradient descent based algorithm with weighted iterate-averaging that uses a single pass over ...

The key assumption in regression discontinuity analysis is that the distribution of potential outcomes varies smoothly with the running variable around the cutoff. In many empirical contexts, however, ...