Results 11 to 20 of about 505,151 (317)

Implementation of real-time digital filter for the R wave detection

open access: yesTecnoLógicas, 2015
Quantification of the instantaneous heart rate is based on the detection of the R wave of the electrocardiographic signal. This process requires the implementation of strategies for real-time filtering for the time of occurrence of each R wave.
Javier E. González-Barajas   +2 more
doaj   +1 more source

A review of numerical asymptotic averaging for weakly nonlinear hyperbolic waves

open access: yesMathematical Modelling and Analysis, 2004
We present an overview of averaging method for solving weakly nonlinear hyperbolic systems. An asymptotic solution is constructed, which is uniformly valid in the “large” domain of variables t + |x| ∼ O(ϵ –1).
A. Krylovas, R. Čiegis
doaj   +1 more source

Integration of visual motion and orientation signals in dyslexic children: an equivalent noise approach

open access: yesRoyal Society Open Science, 2022
Dyslexic individuals have been reported to have reduced global motion sensitivity, which could be attributed to various causes including atypical magnocellular or dorsal stream function, impaired spatial integration, increased internal noise and/or ...
Catherine Manning   +3 more
doaj   +1 more source

Use of zero-frequency resonator for automatically detecting systolic peaks of photoplethysmogram signal

open access: yesHealthcare Technology Letters, 2019
This work investigates the application of zero-frequency resonator (ZFR) for detecting systolic peaks of photoplethysmogram (PPG) signals. Based on the authors’ studies, they propose an automated noise-robust method, which consists of the central ...
Simhadri Vadrevu   +1 more
doaj   +1 more source

Averaging in LTL [PDF]

open access: yes, 2014
For the accurate analysis of computerized systems, powerful quantitative formalisms have been designed, together with efficient verification algorithms. However, verification has mostly remained boolean--either a property is true, or it is false. We believe that this is too crude in a context where quantitative information and constraints are crucial ...
Bouyer, Patricia   +2 more
openaire   +1 more source

Word-embedding Based Text Vectorization Using Clustering

open access: yesМоделирование и анализ информационных систем, 2021
It is known that in the tasks of natural language processing, the representation of texts by vectors of fixed length using word-embedding models makes sense in cases where the vectorized texts are short.The longer the texts being compared, the worse the ...
Vitaly I. Yuferev, Nikolai A. Razin
doaj   +1 more source

On sparsity averaging

open access: yesCoRR, 2013
Recent developments in Carrillo et al. (2012) and Carrillo et al. (2013) introduced a novel regularization method for compressive imaging in the context of compressed sensing with coherent redundant dictionaries. The approach relies on the observation that natural images exhibit strong average sparsity over multiple coherent frames.
Carrillo Rafael   +2 more
openaire   +3 more sources

Controlled Discrete-Time Semi-Markov Random Evolutions and Their Applications

open access: yesMathematics, 2021
In this paper, we introduced controlled discrete-time semi-Markov random evolutions. These processes are random evolutions of discrete-time semi-Markov processes where we consider a control. applied to the values of random evolution.
Anatoliy Swishchuk, Nikolaos Limnios
doaj   +1 more source

Repeated judgment sampling: Boundaries

open access: yesJudgment and Decision Making, 2011
This paper investigates the boundaries of the recent result that eliciting more than one estimate from the same person and averaging these can lead to accuracy gains in judgment tasks.
Johannes Müller-Trede
doaj   +1 more source

On non-conservative perturbations of three-dimensional integrable systems [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика
At present, non-conservative perturbations of two-dimensional nonlinear Hamiltonian systems have been studied quite fully. The purpose of the study is to generalize this theory to the three-dimensional case, when the unperturbed system is nonlinear ...
Morozov, Kirill Евгеньевич
doaj   +1 more source

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