García Blanes, David(Universitat Politècnica de València, 2020-02-20)
[EN] The objective of this thesis was to explore how modern technologies fail in being
adopted by older people; the issues that come with older age, and how current technology is proving unable to solve or ease the problems ...
[EN] Many time series entropy calculation methods have been proposed in the last few years. They are mainly used as numerical features for signal classification in any scientific field where data series are involved. We ...
[EN] Slope Entropy (SlpEn) is a very recently proposed entropy calculation method. It is based on the differences between consecutive values in a time series and two new input thresholds to assign a symbol to each resulting ...
[EN] The development of new measures and algorithms to quantify the entropy or related concepts of a data series is a continuous effort that has brought many innovations in this regard in recent years. The ultimate goal ...
Body temperature monitoring provides healthcarers with key clinical information about the physiological status of patients. Temperature readings are taken periodically to detect febrile episodes and consequently implement ...
[EN] Despite its widely tested and proven usefulness, there is still room for improvement in the basic permutation entropy (PE) algorithm, as several subsequent studies have demonstrated in recent years. Some of these new ...
[EN] This paper presents T-wave alternans (TWA) detection, applying the Wavelet Transform (WT) to electrocardiographic (ECG) synthetic signals. The TWA is generated with or without the sinusoidal addition of the wave with ...
Vargas, Borja; Cuesta Frau, David; Ruiz Esteban, Raul; Cirugeda Roldán, Eva María; Varela, Manuel(Society for Chaos Theory in Psychology and Life Sciences, 2015-10)
Many physiological systems are paradigmatic examples of complex networks,
displaying behaviors best studied by means of tools derived from nonlinear dynamics and fractal
geometry. Furthermore, while conventional wisdom ...