Automatic feature discovery: A comparative study between filter and wrapper feature selection techniques

The curse of dimensionality is a common challenge in machine learning, and feature selection techniques are commonly employed to address this issue by selecting a subset of relevant features. However, there is no consistently superior approach for choosing the most significant subset of features. We conducted a comprehensive analysis comparing...

A data-driven approach for quantifying the resilience of railway networks

Disruptions occur frequently in railway networks, requiring timetable adjustments, while causing serious delays and cancellations. However, little is known about the performance dynamics during disruptions nor the extent to which the resilience curve applies in practice. This paper presents a data-driven quantification approach for an ex-post...

A data-driven approach for evaluating the resilience of railway networks

Disruptions occur frequently in railway networks, requiring adjustments to the timetable, rolling stock planning and crew planning while causing delays and cancellations. Although the evolu­tion of system performance during a disruption can be visualized in the resilience curve, not much is known about performance during disruptions or the...

Application of OCT and IVUS to investigate the combined effect of plaque structural stress and wall shear stress on plaque progression in human coronary arteries

Introduction: Atherosclerosis, the major source of cardiovascular diseases, is one of the leading causes of death. During atherosclerosis the arterial wall is affected by a complex process of lipid driven inflammation that leads to thickening of the arterial wall resulting in a so called plaque. Because of plaque growth, the lumen of the artery...

Impact of Chemically Treated Waste Rubber Tire Aggregates on Mechanical, Durability and Thermal Properties of Concrete

Studies have shown that the incorporation of waste tire rubber aggregates reduces the strength, increases permeability and decrease thermal conductivity of concrete. However, only a few studies have investigated the effect of surface-modified rubber aggregates on the properties of concrete. This study investigates the effect of the surface...

The influence of the visible views on cyclists' route choices: A geospatial approach for the measurement of the determinants in the urban environment based on 3D isovists and cyclists’ GPS trajectories in Amsterdam

Route choice of cyclists recently became a hot topic of research for different disciplines such as transport and urban planning. Among other factors that influence these route choices, the urban environment has been identified as one in a network, road or aesthetic level. However, how the morphology of the built environment influences the cyclists...

Forecasting day-ahead electricity prices in Europe: The importance of considering market integration

Motivated by the increasing integration among electricity markets, in this paper we propose two different methods to incorporate market integration in electricity price forecasting and to improve the predictive performance. First, we propose a deep neural network that considers features from connected markets to improve the predictive...

Providing good service quality and customer satisfaction for airline ground services

Airline Industry has seen constant growth in the passenger aviation sector over the years. The profits though, have not risen much because the competition has stiffened and fluctuating oil prices have been a cause of concern as well. Price wars have been a short-term strategy for the airlines to gain a bigger market share and retain customers....

Optimization of sandwich composites fuselages under flight loads

The sandwich composites fuselages appear to be a promising choice for the future aircrafts because of their structural efficiency and functional integration advantages. However, the design of sandwich composites is more complex than other structures because of many involved variables. In this paper, the fuselage is designed as a sandwich...

Multidisciplinary design optimization of wing shape with nacelle and pylon

A Multidisciplinary Design Optimization (MDO) system for a wing with nacelle and pylon is developed. The present MDO system is based on the integration of Computational Fluid Dynamics (CFD) codes and NASTRAN based an aeroelastic-structural interface code. The Kriging model is employed to save the computational time of objective function...