Results 21 to 30 of about 186,023 (249)

Nonlinear dynamical analysis of GNSS data: quantification, precursors and synchronisation

Progress in Earth and Planetary Science, 2018
The goal of any nonlinear dynamical analysis of a data series is to extract features of the dynamics of the underlying physical and chemical processes that produce that spatial pattern or time series; a by-product is to characterise the signal in terms ...
Bruce Hobbs, Alison Ord
doaj   +1 more source

Cross recurrence plot analysis based method for TDOA estimation of underwater acoustic signals [PDF]

2015 IEEE 6th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2015
In this paper, we propose to use cross recurrence plot analysis (CRPA) to estimate the time-difference of arrival (TDOA) of underwater acoustic signals arriving on an array of hydrophones. Instead of considering the signal as a whole to estimate the TDOA, like classical methods do, we first detected the series of samples that look alike on each pair of
Olivier Le Bot, Jérôme I. Mars, Cédric Gervaise, Yvan Simard   +3 more
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Exploring dynamic structures of dyadic conversations using categorical cross recurrence quantification analysis: A tutorial [PDF]

Tutorials in Quantitative Methods for Psychology
Social interactions are defined by the dynamic and reciprocal exchange of information in a process referred to as mutual alignment. Statistical methods for characterizing alignment between two interacting partners are emerging.
Duong, Shirley, Davis, Tehran J., Bachman, Heather J., Votruba-Drzal, Elizabeth, Libertus, Melissa E.   +4 more
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The geometry of synchronization: quantifying the coupling direction of physiological signals of stress between individuals using inter-system recurrence networks

Frontiers in Network Physiology, 2023
In the study of synchronization dynamics between interacting systems, several techniques are available to estimate coupling strength and coupling direction. Currently, there is no general ‘best’ method that will perform well in most contexts.
Fred Hasselman, Luciënne den Uil, Luciënne den Uil, Renske Koordeman, Peter de Looff, Peter de Looff, Peter de Looff, Peter de Looff, Roy Otten   +8 more
doaj   +1 more source

Bearing Degradation Evaluation Using Improved Cross Recurrence Quantification Analysis and Nonlinear Auto-Regressive Neural Network

IEEE Access, 2019
This paper presents an improved cross recurrence quantitative analysis (CRQA) method for bearing degradation evaluation. It extracts CRQA variable from bearings' vibration signals to establish the degradation trend.
Pu Wang, Hui Wang, Ruqiang Yan
doaj   +1 more source

Cross-Match as an Immuno-Oncological Risk Factor for Hepatocellular Carcinoma Recurrence and Inferior Survival After Living Donor Liver Transplantation: A Call for Further Investigation

Clinical Medicine Insights: Oncology, 2020
Background: The success of immunotherapy for patients with hepatocellular carcinoma (HCC) suggests that immune dysregulation occurs in HCC patients. This warrants an immuno-oncological risk assessment in the platform of liver transplantation.
Cheng-Maw Ho, Rey-Heng Hu, Yao-Ming Wu, Ming-Chih Ho, Po-Huang Lee   +4 more
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Analyzing Social Interactions: The Promises and Challenges of Using Cross Recurrence Quantification Analysis [PDF]

, 2014
The scientific investigation of social interactions presents substantial challenges: interacting agents engage each other at many different levels and timescales (motor and physiological coordination, joint attention, linguistic exchanges, etc.), often making their behaviors interdependent in non-linear ways.
Fusaroli, Riccardo; id_orcid 0000-0003-4775-5219, Konvalinka, Ivana, Wallot, Sebastian   +2 more
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Analyzing Complex Non-Linear Fascia-Muscle Interactions Using Cross-Recurrence Quantification Analysis

Stats
Biophysical, neurophysiological, psychological and social processes along with their interactions are complex, often non-linear and inherently time-dependent.
Andreas Brandl, Marcus Müller, Robert Schleip   +2 more
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Robust audio hashing scheme based on cochleagram and cross recurrence analysis

Electronics Letters, 2013
A robust hashing method based on computer‐vision techniques is proposed as an improvement to the existing computer‐vision based hashing scheme. The cochleagram of the audio is treated as an image, from which Speeded Up Robust Features are extracted as essential features. Non‐negative matrix factorisation is used to reduce the features’ dimension.
N. Chen, H.D. Xiao, J. Zhu, J.J. Lin, Y. Wang, W.H. Yuan   +5 more
openaire   +1 more source

Radiogenomics analysis identifies correlations of digital mammography with clinical molecular signatures in breast cancer. [PDF]

PLoS ONE, 2018
In breast cancer, well-known gene expression subtypes have been related to a specific clinical outcome. However, their impact on the breast tissue phenotype has been poorly studied.
Jose-Gerardo Tamez-Peña, Juan-Andrés Rodriguez-Rojas, Hugo Gomez-Rueda, Jose-Maria Celaya-Padilla, Roxana-Alicia Rivera-Prieto, Rebeca Palacios-Corona, Margarita Garza-Montemayor, Servando Cardona-Huerta, Victor Treviño   +8 more
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