565 citations · 2.9k across the 63 of their papers we have counts for
4 papers · 2 filters
Trend Filtering on Graphs
Yu-Xiang Wang, James Sharpnack, Alex Smola +1
We introduce a family of adaptive estimators on graphs, based on penalizing the norm of discrete graph differences. This generalizes the idea of trend filtering [Kim et al…
A General Framework for Fast Stagewise Algorithms
Ryan J. Tibshirani
Forward stagewise regression follows a very simple strategy for constructing a sequence of sparse regression estimates: it starts with all coefficients equal to zero, and iterative…
Fast and Flexible ADMM Algorithms for Trend Filtering
Aaditya Ramdas, Ryan J. Tibshirani
This paper presents a fast and robust algorithm for trend filtering, a recently developed nonparametric regression tool. It has been shown that, for estimating functions whose deri…
The Falling Factorial Basis and Its Statistical Applications
Yu-Xiang Wang, Alex Smola, Ryan J. Tibshirani
We study a novel spline-like basis, which we name the "falling factorial basis", bearing many similarities to the classic truncated power basis. The advantage of the falling factor…