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Likelihood estimation of sparse topic distributions in topic models and its applications to Wasserstein document distance calculations


Jul 12, 2021
Xin Bing, Florentina Bunea, Seth Strimas-Mackey, Marten Wegkamp


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Prediction in latent factor regression: Adaptive PCR and beyond


Jul 20, 2020
Xin Bing, Florentina Bunea, Seth Strimas-Mackey, Marten Wegkamp

* 46 pages, 3 figures 

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Interpolation under latent factor regression models


Mar 13, 2020
Florentina Bunea, Seth Strimas-Mackey, Marten Wegkamp

* 47 pages, 1 figure 

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Optimal estimation of sparse topic models


Jan 22, 2020
Xin Bing, Florentina Bunea, Marten Wegkamp


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High-Dimensional Inference for Cluster-Based Graphical Models


Jun 13, 2018
Carson Eisenach, Florentina Bunea, Yang Ning, Claudiu Dinicu


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A fast algorithm with minimax optimal guarantees for topic models with an unknown number of topics


Jun 12, 2018
Xin Bing, Florentina Bunea, Marten Wegkamp


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Model Assisted Variable Clustering: Minimax-optimal Recovery and Algorithms


Apr 16, 2018
Florentina Bunea, Christophe Giraud, Xi Luo, Martin Royer, Nicolas Verzelen

* Maintext: 40 pages; supplementary information: 21 pages 

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Adaptive Estimation in Structured Factor Models with Applications to Overlapping Clustering


Mar 22, 2018
Xin Bing, Florentina Bunea, Yang Ning, Marten Wegkamp


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Convex Banding of the Covariance Matrix


May 23, 2014
Jacob Bien, Florentina Bunea, Luo Xiao


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Joint variable and rank selection for parsimonious estimation of high-dimensional matrices


Feb 13, 2013
Florentina Bunea, Yiyuan She, Marten H. Wegkamp

* Annals of Statistics 2012, Vol. 40, No. 5, 2359-2388 
* Published in at http://dx.doi.org/10.1214/12-AOS1039 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org

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SPADES and mixture models


Oct 21, 2010
Florentina Bunea, Alexandre B. Tsybakov, Marten H. Wegkamp, Adrian Barbu

* Annals of Statistics 2010, Vol. 38, No. 4, 2525-2558 
* Published in at http://dx.doi.org/10.1214/09-AOS790 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org

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Dimension reduction and variable selection in case control studies via regularized likelihood optimization


Nov 20, 2009
Florentina Bunea, Adrian Barbu

* 32 pages, 5 figures, 3 tables 

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