348 citations · 1.2k across the 81 of their papers we have counts for
5 papers · 1 filter
A semi-parametric model for target localization in distributed systems
Rohit K. Patra, Moulinath Banerjee, George Michailidis
Distributed systems serve as a key technological infrastructure for monitoring diverse systems across space and time. Examples of their widespread applications include: precision a…
Automatic Registration and Clustering of Time Series
Michael Weylandt, George Michailidis
Clustering of time series data exhibits a number of challenges not present in other settings, notably the problem of registration (alignment) of observed signals. Typical approache…
Adaptive First-and Zeroth-order Methods for Weakly Convex Stochastic Optimization Problems
Parvin Nazari, Davoud Ataee Tarzanagh, George Michailidis
In this paper, we design and analyze a new family of adaptive subgradient methods for solving an important class of weakly convex (possibly nonsmooth) stochastic optimization probl…
B-CONCORD -- A scalable Bayesian high-dimensional precision matrix estimation procedure
Peyman Jalali, Kshitij Khare, George Michailidis
Sparse estimation of the precision matrix under high-dimensional scaling constitutes a canonical problem in statistics and machine learning. Numerous regression and likelihood base…
Online detection of local abrupt changes in high-dimensional Gaussian graphical models
Hossein Keshavarz, George Michailidis
The problem of identifying change points in high-dimensional Gaussian graphical models (GGMs) in an online fashion is of interest, due to new applications in biology, economics and…