Results 141 to 150 of about 1,173 (164)

Clustering of waveforms-data based on FPCA direction

2010
The necessity of nding similar features of waveforms data recorded for earthquakes at di erent time instants is here considered, since eventual similarity between these functions could suggest similar behavior of the source process of the corresponding earthquakes. In this paper we develop a clustering algorithm for curves based on directions de ned by
ADELFIO, Giada, CHIODI, Marcello, D'Alessandro, A, LUZIO, Dario   +3 more
openaire   +1 more source

HRV-Recovery-FPCA

Heart rate variability (HRV) dynamics following training sessions provide insight into the balance between physiological stress and recovery. Traditional approaches often reduce HRV to scalar summaries, overlooking the information contained in the full recovery trajectory.
openaire   +1 more source

An Evolution Analysis of Regional Economic Development Disparities in Guangdong Based on the FPCA

2019
The economic disparities among the Pearl River Delta and East Region, the West Region and the Mountainous Region become the primary contrasts to be urgently resolved in the economic transformation of Guangdong Province. This paper selects the added value of employees in 21 cities and applies the functional principal component analysis (FPCA) method to ...
openaire   +1 more source

Space-time FPCA Algorithm for clustering of multidimensional curves.

2016
In this paper we focus on finding clusters of multidimensional curves with spatio-temporal structure, applying a variant of a k-means algorithm based on the principal component rotation of data. The main advantage of this approach is to combine the clustering functional analysis of the multidimensional data, with smoothing methods based on generalized ...
ADELFIO, Giada, DI SALVO, Francesca, CHIODI, Marcello   +2 more
openaire   +1 more source

VARIANTS OF POSTERIOR CEREBRAL CIRCULATION: A case of PTA with bilateral FPCA

2017
Clinical History Image Findings Discussion Find Diagnosis Differential ...
openaire   +1 more source

Comparing Spatial and Spatio-temporal FPCA to Impute Large Continuous Gaps in Space

2018
Multivariate spatio-temporal data analysis methods usually assume fairly complete data, while a number of gaps often occur along time or in space. In air quality data long gaps may be due to instrument malfunctions; moreover, not all the pollutants of interest are measured in all the monitoring stations of a network.
Mariantonietta Ruggieri, Antonella Plaia, Francesca Di Salvo   +2 more
openaire   +1 more source

Frequency principal components analysis (fPCA) of resting EEG: clinical applications

International Journal of Psychophysiology, 2023
G.Z. Steiner-Lim, F.M. De Blasio
openaire   +1 more source

Demonstration of Fetal Posterior Cerebral Artery (fPCA) using Transcranial Ultrasound

Neurology India, 2023
openaire   +2 more sources

Visualizing DEA efficient frontier combined FPCA

Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers, 2007
Toyozumi, Kotaro, Aoki, Shingo
openaire   +1 more source

FPCA: Parasitic Coding Authentication for UAVs by FM Signals

IEEE/ACM Transactions on Networking
Shaopeng Zhu, Xiaolong Zheng 0002, Liang Liu 0001, Huadong Ma   +3 more
openaire   +1 more source