189 citations · 888 across the 107 of their papers we have counts for
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Exploratory Analysis of High Dimensional Time Series with Applications to Multichannel Electroencephalograms
Yuxiao Wang, Chee-Ming Ting, Hernando Ombao
In this paper, we address the the major hurdle of high dimensionality in EEG analysis by extracting the optimal lower dimensional representations. Using our approach, connectivity…
Evolutionary State-Space Model and Its Application to Time-Frequency Analysis of Local Field Potentials
Xu Gao, Weining Shen, Babak Shahbaba +2
We propose an evolutionary state space model (E-SSM) for analyzing high dimensional brain signals whose statistical properties evolve over the course of a non-spatial memory experi…
The Hierarchical Spectral Merger algorithm: A New Time Series Clustering Procedure
Carolina Euan, Hernando Ombao, Joaquin Ortega
We present a new method for time series clustering which we call the Hierarchical Spectral Merger (HSM) method. This procedure is based on the spectral theory of time series and id…
A Multi-Resolution Spatio-Temporal Model for Brain Activation and Connectivity in fMRI Data
Stefano Castruccio, Hernando Ombao, Marc G. Genton
Functional Magnetic Resonance Imaging (fMRI) is a primary modality for studying brain activity. Modeling spatial dependence of imaging data at different scales is one of the main c…