64 citations · 194 across the 11 of their papers we have counts for
4 papers · 1 filter
Application of de-shape synchrosqueezing to estimate gait cadence from a single-sensor accelerometer placed in different body locations
Hau-Tieng Wu, Jacek Urbanek
Objective: Commercial and research-grade wearable devices have become increasingly popular over the past decade. Information extracted from devices using accelerometers is frequent…
Prediction of sustained harmonic walking in the free-living environment using raw accelerometry data
Jacek K. Urbanek, Vadim Zipunnikov, Tamara Harris +6
Objective. Using raw, sub-second level, accelerometry data, we propose and validate a method for identifying and characterizing walking in the free-living environment. We focus on…
Longitudinal Functional Models with Structured Penalties
Madan G. Kundu, Jaroslaw Harezlak, Timothy W. Randolph
This paper addresses estimation in a longitudinal regression model for association between a scalar outcome and a set of longitudinally-collected functional covariates or predictor…
Structured penalties for functional linear models---partially empirical eigenvectors for regression
Timothy W. Randolph, Jaroslaw Harezlak, Ziding Feng
One of the challenges with functional data is incorporating spatial structure, or local correlation, into the analysis. This structure is inherent in the output from an increasing…