331 citations · 1.8k across the 71 of their papers we have counts for
6 papers · 1 filter
Denoising and change point localisation in piecewise-constant high-dimensional regression coefficients
Fan Wang, Oscar Hernan Madrid Padilla, Yi Yu +1
We study the theoretical properties of the fused lasso procedure originally proposed by \cite{tibshirani2005sparsity} in the context of a linear regression model in which the regre…
Generalized Results for the Existence and Consistency of the MLE in the Bradley-Terry-Luce Model
Heejong Bong, Alessandro Rinaldo
Ranking problems based on pairwise comparisons, such as those arising in online gaming, often involve a large pool of items to order. In these situations, the gap in performance be…
Optimal partition recovery in general graphs
Yi Yu, Oscar Hernan Madrid Padilla, Alessandro Rinaldo
We consider a graph-structured change point problem in which we observe a random vector with piecewise constant but unknown mean and whose independent, sub-Gaussian coordinates cor…
-Bounds of the MLE in the BTL Model under General Comparison Graphs
Wanshan Li, Shamindra Shrotriya, Alessandro Rinaldo
The Bradley-Terry-Luce (BTL) model is a popular statistical approach for estimating the global ranking of a collection of items using pairwise comparisons. To ensure accurate ranki…
Lattice partition recovery with dyadic CART
Oscar Hernan Madrid Padilla, Yi Yu, Alessandro Rinaldo
We study piece-wise constant signals corrupted by additive Gaussian noise over a -dimensional lattice. Data of this form naturally arise in a host of applications, and the tasks…
Optimal network online change point localisation
Yi Yu, Oscar Hernan Madrid Padilla, Daren Wang +1
We study the problem of online network change point detection. In this setting, a collection of independent Bernoulli networks is collected sequentially, and the underlying distrib…