Ioannis Andreadis
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View article: The credit card-augmented Divisia monetary aggregates: an analysis based on recurrence plots and visual boundary recurrence plots
The credit card-augmented Divisia monetary aggregates: an analysis based on recurrence plots and visual boundary recurrence plots Open
In this paper, we compare the dynamics of the growth rates of the original Divisia monetary aggregates, the credit card-augmented Divisia monetary aggregates, and the credit card-augmented Divisia inside monetary aggregates. This analysis …
View article: First-year Secondary Students’ Perceptions of the Impact of iPad Use on Their Learning in a BYOD Secondary International School
First-year Secondary Students’ Perceptions of the Impact of iPad Use on Their Learning in a BYOD Secondary International School Open
This study uses a statistical survey over three consecutive years to show how the first-year students of a mid-sized Bring Your Own Device (BYOD) secondary international school perceive the impact of using their own iPad on their learning.…
View article: A Device Free Lunch Break Program: An Experiment to Promote a Balanced Used of Electronic Devices in Middle Secondary International Schools.
A Device Free Lunch Break Program: An Experiment to Promote a Balanced Used of Electronic Devices in Middle Secondary International Schools. Open
Since the introduction of a Bring Your Own iPad scheme in the Middle Years section of a large International School, concerns have been raised from school community members regarding students’ overuse of their devices, especially during lun…
View article: Conditional Random Field-Guided Multi-Focus Image Fusion
Conditional Random Field-Guided Multi-Focus Image Fusion Open
Multi-Focus image fusion is of great importance in order to cope with the limited Depth-of-Field of optical lenses. Since input images contain noise, multi-focus image fusion methods that support denoising are important. Transform-domain m…
View article: Hilbert-Huang Transform-Based Seismic Intensity Parameters for Performance-Based Design of RC-Framed Structures
Hilbert-Huang Transform-Based Seismic Intensity Parameters for Performance-Based Design of RC-Framed Structures Open
This study aims to develop the optimal artificial neural networks (ANNs) capable of estimating the seismic damage of reinforced concrete (RC)-framed structures by considering several seismic intensity parameters based on the Hilbert–Huang …
View article: Assessment and Localization of Structural Damage in r/c Structures through Intelligent Seismic Signal Processing
Assessment and Localization of Structural Damage in r/c Structures through Intelligent Seismic Signal Processing Open
In this work, a novel approach in post-earthquake structural damage estimation is investigated. The approach is formulated as a problem of both damage approximation and localization. The inter-story drift ratio and the global damage index …
View article: Intelligent Systems for Structural Damage Assessment
Intelligent Systems for Structural Damage Assessment Open
This research provides a comparative study of intelligent systems in structural damage assessment after the occurrence of an earthquake. Seismic response data of a reinforced concrete structure subjected to 100 different levels of seismic …
View article: Non‐parametric confidence estimates for the Gini–Simpson measure of sparsity
Non‐parametric confidence estimates for the Gini–Simpson measure of sparsity Open
Assessment of the quality of local estimates of data sparsity is central for various adaptive algorithms in signal processing. Empirical bounds for the estimation performance of a frequently used measure of sparsity, namely the Gini–Simpso…