Results 31 to 40 of about 88,313 (244)

An Approach to Aligning Categorical and Continuous Time Series for Studying the Dynamics of Complex Human Behavior

Frontiers in Psychology, 2021
An emerging perspective on human cognition and performance sees it as a kind of self-organizing phenomenon involving dynamic coordination across the body, brain and environment. Measuring this coordination faces a major challenge.
Kentaro Kodama, Daichi Shimizu, Rick Dale, Kazuki Sekine   +3 more
doaj   +1 more source

Distinguishing between struggling and skilled readers based on their prosodic speech patterns in oral reading: An exploratory study in grades 2 and 4

Acta Psychologica, 2023
The purpose of this study was to examine if prosodic patterns in oral reading derived from Recurrence Quantification Analysis (RQA) could distinguish between struggling and skilled German readers in Grades 2 (n = 67) and 4 (n = 69).
Panagiotis Karageorgos, Sebastian Wallot, Bettina Müller, Julia Schindler, Tobias Richter   +4 more
doaj   +1 more source

Automated sleep stage detection based on recurrence quantification analysis using machine learning [PDF]

Journal of Applied Research on Industrial Engineering, 2022
In recent years, the use of intelligent methods for automatic detection of sleep stages in medical applications to increase diagnostic accuracy and reduce the workload of physicians in analyzing sleep data by visual inspection is one of the important ...
Mohammad Karimi Moridani, Atiye Hajiali
doaj   +1 more source

Recurrence quantification analysis of two solar cycle indices

Journal of Space Weather and Space Climate, 2017
Solar activity affects the whole heliosphere and near-Earth space environment. It has been reported in the literature that the mechanism responsible for the solar activity modulation behaves like a low-dimensional chaotic system.
Stangalini Marco, Ermolli Ilaria, Consolini Giuseppe, Giorgi Fabrizio   +3 more
doaj   +1 more source

Analyzing the hydrological dynamics of a pristine and a regulated river in northern Europe’s sub-Arctic using recurrence theory

Hydrology Research
Examining hydrological variability is essential for understanding system dynamics and supporting effective water resource management. Recurrence analysis, a nonlinear time series technique, can uncover hidden patterns in hydrometeorological data through ...
Adarsh S, Susan Mariam Rajesh, B Muraleekrishnan, Sumayah Santhoshkhan, Naveen Joseph, Alireza Sharifi, Nasim Fazel, Hannu Marttila, Ali Torabi Haghighi   +8 more
doaj   +1 more source

Nonlinear analysis of gravitational wave signals based on recurrence quantification analysis

MATEC Web of Conferences, 2018
Recurrence plot and recurrence quantification analysis are used to analyze different features of gravitational wave signals. Firstly, the appropriate delay time and embedding dimension are respectively estimated by methods of the C_C method.
Fan Zhenyan, Chen Qianqian, Sun Guiqi, Mastorakis Nikos, Zhuang Xiaodong   +4 more
doaj   +1 more source

Exploring Price Patterns of Vegetables with Recurrence Quantification Analysis

AppliedMath
This study investigates the time-series behavior of vegetable prices in the Central Market of Thessaloniki, Greece, using Recurrence Plot (RP) analysis and Recurrence Quantification Analysis (RQA), which considers non-linearities and does not necessitate
Sofia Karakasidou, Athanasios Fragkou, Loukas Zachilas, Theodoros Karakasidis   +3 more
doaj   +1 more source

Recurrence Metrics for Assessing Eye Movements in Perceptual Experiments

Journal of Eye Movement Research, 2016
In a recent study evaluating the impact of image content on the consistency of eye movements in perceptual experiments (Farnand, 2013) image complexity was inversely related to scanpath consistency.
Susan Farnand, Preethi Vaidyanathan, Jeff B. Pelz   +2 more
doaj   +1 more source

Classification of Electromyogram Using Recurrence Quantification Analysis

Procedia Computer Science, 2011
AbstractClinical analysis of the electromyogram is a powerful tool for diagnosis of neuromuscular diseases. Therefore, the classification of electromyogram signals has attracted much attention over the years. Several classification methods based on techniques such as neuro-fuzzy systems, wavelet coefficients, and artificial neural networks have been ...
Sivarit Sultornsanee, Ibrahim Zeid, Sagar V. Kamarthi   +2 more
openaire   +1 more source

Recurrence quantification analysis across sleep stages

Biomedical Signal Processing and Control, 2015
In this work we employ a nonlinear data analysis method called recurrence quantification analysis (RQA) to analyze differences between sleep stages and wake using cardio-respiratory signals, only. The data were recorded during full-night polysomnographies of 313 healthy subjects in nine different sleep laboratories. The raw signals are first normalized
Jerome Rolink, Martin Kutz, Pedro Fonseca 0002, Xi Long 0001, Berno J. E. Misgeld, Steffen Leonhardt   +5 more
openaire   +2 more sources