168 citations · 521 across the 24 of their papers we have counts for
7 papers · 1 filter
Testing for a Change in Mean After Changepoint Detection
Sean Jewell, Paul Fearnhead, Daniela Witten
While many methods are available to detect structural changes in a time series, few procedures are available to quantify the uncertainty of these estimates post-detection. In this…
Controlling Costs: Feature Selection on a Budget
Guo Yu, Daniela Witten, Jacob Bien
The traditional framework for feature selection treats all features as costing the same amount. However, in reality, a scientist often has considerable discretion regarding which v…
Testing for Association in Multi-View Network Data
Lucy L. Gao, Daniela Witten, Jacob Bien
In this paper, we consider data consisting of multiple networks, each comprised of a different edge set on a common set of nodes. Many models have been proposed for the analysis of…
Modeling microbial abundances and dysbiosis with beta-binomial regression
Bryan D. Martin, Daniela Witten, Amy D. Willis
Using a sample from a population to estimate the proportion of the population with a certain category label is a broadly important problem. In the context of microbiome studies, th…
Tail behavior of dependent V-statistics and its applications
Yandi Shen, Fang Han, Daniela Witten
We establish exponential inequalities and Cramer-type moderate deviation theorems for a class of V-statistics under strong mixing conditions. Our theory is developed via kernel exp…
Optimal estimation of variance in nonparametric regression with random design
Yandi Shen, Chao Gao, Daniela Witten +1
Consider the heteroscedastic nonparametric regression model with random design \begin{align*} Y_i = f(X_i) + V^{1/2}(X_i)\varepsilon_i, \quad i=1,2,\ldots,n, \end{align*} with $f(\…