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Concept drift detection on social network data using cross-recurrence quantification analysis
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2018This paper presents our efforts to detect Concept Drifts (changes in data generation processes), using the Cross-Recurrence Quantification Analysis, on time series produced by social network systems. Experiments were performed on the TSViz project (http://www.tsviz.com.br), which collects online tweets associated with predefined hashtags and processes ...
Rodrigo F. de Mello +3 more
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Advanced Powder Technology, 2017
Abstract Hydrodynamics of gas-solid fluidized bed was investigated by analyzing its pressure fluctuations using cross recurrence quantification analysis (CRQA). Pressure fluctuations were measured in a lab scale fluidized bed of various particle sizes at different gas velocities.
Hooman Ziaei-Halimejani +2 more
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Abstract Hydrodynamics of gas-solid fluidized bed was investigated by analyzing its pressure fluctuations using cross recurrence quantification analysis (CRQA). Pressure fluctuations were measured in a lab scale fluidized bed of various particle sizes at different gas velocities.
Hooman Ziaei-Halimejani +2 more
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2017 IEEE Life Sciences Conference (LSC), 2017
This work investigates the effectiveness of the nonlinear method of cross recurrence quantification analysis (CRQA) for classifying EEG of subjects with mild cognitive impairment (MCI) based on their synchronization levels. The synchronization levels are quantified using the CRQA recurrence rate (RR) of EEG under memory activation state of picture ...
Leena T. Timothy +2 more
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This work investigates the effectiveness of the nonlinear method of cross recurrence quantification analysis (CRQA) for classifying EEG of subjects with mild cognitive impairment (MCI) based on their synchronization levels. The synchronization levels are quantified using the CRQA recurrence rate (RR) of EEG under memory activation state of picture ...
Leena T. Timothy +2 more
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2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2018
This study aimed to examine the dynamical coordination across muscles during power grip at different force levels. Twenty-four healthy volunteers (12 males, 12 females) participated in this experiment. Subjects were instructed to grip a hydraulic hand dynamometer and produce forces at 30%, 50%, 70% Maximal Voluntary Contractions (MVC) for at least 10s,
Na, Zhang +4 more
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This study aimed to examine the dynamical coordination across muscles during power grip at different force levels. Twenty-four healthy volunteers (12 males, 12 females) participated in this experiment. Subjects were instructed to grip a hydraulic hand dynamometer and produce forces at 30%, 50%, 70% Maximal Voluntary Contractions (MVC) for at least 10s,
Na, Zhang +4 more
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Physical and Engineering Sciences in Medicine, 2021
The purpose of this study is to study the effect of age on the correlation between heart rate variability (HRV) and blood pressure variability (BPV). To meet this end, multi-scale cross correlation (CC) analysis of HRV and systolic blood pressure variability (SBPV) was performed.
Vikramjit Singh +4 more
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The purpose of this study is to study the effect of age on the correlation between heart rate variability (HRV) and blood pressure variability (BPV). To meet this end, multi-scale cross correlation (CC) analysis of HRV and systolic blood pressure variability (SBPV) was performed.
Vikramjit Singh +4 more
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Pattern Recognition, 2018
Abstract When dealing with semi-supervised scenarios, the Positive and Unlabeled (PU) problem is a special case in which few labeled examples from a single class of interest are received to proceed with the classification of unseen instances, according to their similarities with the known class.
Lucas de Carvalho Pagliosa +1 more
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Abstract When dealing with semi-supervised scenarios, the Positive and Unlabeled (PU) problem is a special case in which few labeled examples from a single class of interest are received to proceed with the classification of unseen instances, according to their similarities with the known class.
Lucas de Carvalho Pagliosa +1 more
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Nonlinear Dynamics, 2013
Metal cutting is a complex nonlinear dynamical process. Analysis of signals from turning operation shows that the machining exhibits a low-dimensional chaos. The self-excited vibration caused by the regenerative effect, usually called chatter, can be created during machining by increasing one cutting parameter, while keeping all other cutting ...
Jacob Elias, V. N. Narayanan Namboothiri
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Metal cutting is a complex nonlinear dynamical process. Analysis of signals from turning operation shows that the machining exhibits a low-dimensional chaos. The self-excited vibration caused by the regenerative effect, usually called chatter, can be created during machining by increasing one cutting parameter, while keeping all other cutting ...
Jacob Elias, V. N. Narayanan Namboothiri
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Journal of allied health, 2022
We examined lexical sophistication of written personal statements from physical therapy applicants to determine whether recurrence quantification analysis (RQA) indices distinguish higher- versus lower-scored candidates and correlate with other admissions variables.Written personal statements were extracted from 152 applications, coded numerically, and
John H, Hollman +6 more
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We examined lexical sophistication of written personal statements from physical therapy applicants to determine whether recurrence quantification analysis (RQA) indices distinguish higher- versus lower-scored candidates and correlate with other admissions variables.Written personal statements were extracted from 152 applications, coded numerically, and
John H, Hollman +6 more
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International Journal of Biomedical Engineering and Technology, 2018
Ventricular Tachycardia (VT) is one of the leading causes of sudden cardiac death in the world. Prediction of VT is usually diagnosed by using Electrocardiogram (ECG) and requires expeditious treatment which reduces the mortality rate. The cross recurrence plot (CRP) toolbox is used for computing the recurrence rate values for both (healthy and ...
Shipra Saraswat +2 more
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Ventricular Tachycardia (VT) is one of the leading causes of sudden cardiac death in the world. Prediction of VT is usually diagnosed by using Electrocardiogram (ECG) and requires expeditious treatment which reduces the mortality rate. The cross recurrence plot (CRP) toolbox is used for computing the recurrence rate values for both (healthy and ...
Shipra Saraswat +2 more
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2014
This chapter describes a methodological strategy for studying the influence of coupling constraints on interpersonal coordination using cross-recurrence quantification analysis (CRQA). In Study 1, we investigated interpersonal coordination during conversation in virtual-reality (VR) and real-world environments.
Michael Tolston +3 more
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This chapter describes a methodological strategy for studying the influence of coupling constraints on interpersonal coordination using cross-recurrence quantification analysis (CRQA). In Study 1, we investigated interpersonal coordination during conversation in virtual-reality (VR) and real-world environments.
Michael Tolston +3 more
openaire +1 more source