Abstract
The least absolute shrinkage and selection operator (LASSO) has been playing an important role in variable selection and dimensionality reduction for linear regression. In this paper we focus on two general LASSO models: Sparse Group LASSO and Fused LASSO, and apply the linearized alternating direction method of multipliers (LADMM for short) to solve them. The LADMM approach is shown to be a very simple and efficient approach to numerically solve these general LASSO models. We compare it with some benchmark approaches on both synthetic and real datasets.
Original language | English |
---|---|
Pages (from-to) | 203-221 |
Number of pages | 19 |
Journal | Computational Statistics and Data Analysis |
Volume | 79 |
DOIs | |
Publication status | Published - Nov 2014 |
Scopus Subject Areas
- Statistics and Probability
- Computational Mathematics
- Computational Theory and Mathematics
- Applied Mathematics
User-Defined Keywords
- Alternating direction method of multipliers
- Convex optimization
- Least absolute shrinkage and selection operator
- Linear regression
- Variable selection