Picasso: A Sparse Learning Library for High Dimensional Data Analysis in R and Python

arXiv2006.15261MaRDI QIDQ6343860

Author name not available (Why is that?)

Publication date: 26 June 2020

Abstract: We describe a new library named picasso, which implements a unified framework of pathwise coordinate optimization for a variety of sparse learning problems (e.g., sparse linear regression, sparse logistic regression, sparse Poisson regression and scaled sparse linear regression) combined with efficient active set selection strategies. Besides, the library allows users to choose different sparsity-inducing regularizers, including the convex $el{l}_1$, nonconvex MCP and SCAD regularizers. The library is coded in C++ and has user-friendly R and Python wrappers. Numerical experiments demonstrate that picasso can scale up to large problems efficiently.

Has companion code repository: https://github.com/jasonge27/picasso

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