This article is concerned with the computational aspect of l₁ regularization problems with a certain class of piecewise linear loss functions. The problem of computing the l₁ regularization path for a ...

Solving word problems resulting in linear or quadratic equations and inequalities Definition of a function, domain, range, zeros, notation, composition, piecewise functions, inverse functions and ...

A generalization of the Riemann invariants for quasi-linear wave equations of the type $\partial^2w/\partial t^2 = \partial f (\partial w/\partial x)/\partial x$, which includes the shock curves, is ...