Results 21 to 30 of about 889,852 (360)
Axioms, 2023 Knowledge discovery through spatial and temporal aspects of data related to occurrences of events has many applications in digital forensics. Specifically, in electronic surveillance, it is helpful to construct a timeline to analyze information.
Imran Ali, Yongming Li, Witold Pedrycz
doaj +1 more source
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley +1 more source
Erratum: Point-to-Periodic and Periodic-to-Periodic Connections [PDF]
BIT Numerical Mathematics, 2004 This addition includes a list of essential corrections to the authors' paper [ibid. 44, No.~1, 41--62 (2004; Zbl 1052.65113)].
Jorge Rebaza, Luca Dieci
openaire +2 more sources
Revista Naval de Odontologia On Line, 2023 The objective of this study was to identify the prevalence and self-recognition for indicators of inflammation suggestive of periodontal disease in military personnel of both genders.
Ana Paula Porto Amorim Machado +2 more
doaj +1 more source
Time-Varying Periodicity in Intraday Volatility
Journal of the American Statistical Association, 2019 We develop a nonparametric test for whether return volatility exhibits time-varying intraday periodicity using a long time series of high-frequency data.
T. Andersen +2 more
semanticscholar +1 more source
Storing the Wisdom: Chemical Concepts and Chemoinformatics
Informatics, 2015 The purpose of the paper is to examine the nature of chemical concepts, and the ways in which they are applied in chemoinformatics systems. An account of concepts in philosophy and in the information sciences leads to an analysis of chemical concepts ...
David Bawden
doaj +1 more source
Seasonality of COVID-19 incidence in the United States
Frontiers in Public Health, 2023 BackgroundThe surges of Coronavirus Disease 2019 (COVID-19) appeared to follow a repeating pattern of COVID-19 outbreaks regardless of social distancing, mask mandates, and vaccination campaigns.ObjectivesThis study aimed to investigate the seasonality ...
El Hussain Shamsa +4 more
doaj +1 more source
GPS Time Series Analysis from Aboa the Finnish Antarctic Research Station
Remote Sensing, 2018 Continuous Global Positioning System (GPS) observations have been logged at the Finnish Antarctic research station (Aboa) since February 2003. The station is located in Dronning Maud Land, East Antarctica.
Constantin-Octavian Andrei +6 more
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Nonautonomous Dynamical Systems, 2022 In this work, we study the existence of periodic solutions for a class of linear partial functional differential equations with infinite delay. Inspiring by an existing study, by applying the perturbation theory of semi-Fredholm operators, we introduce a
Elazzouzi Abdelhai +2 more
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Frontiers in Physiology, 2018 We present a novel approach to quantify heart rate variability (HRV) and the results of applying this approach to synthetic and original data sets. Our approach evaluates the periodicity of heart rate by calculating the transform of Relative Shannon ...
Anurak Thungtong +7 more
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