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Tymoteusz Horbinski, Pawel Cybulski and Beata Medynska-Gulij
The main objective of this article was to determine the effectiveness of a web map GUI (Graphical User Interface) layout designed specifically for desktop monitors and smartphones. A suitable design of buttons for the graphical user interface is vital fo...
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Shuangxi Miao, Chengqi Cheng, Weixin Zhai, Fuhu Ren, Bo Zhang, Shuang Li, Junxiao Zhang and Huangchuang Zhang
Flight conflict detection is fundamental to flight dispatch, trajectory planning, and flight safety control. An ever-increasing aircraft population and higher speeds, particularly the emergence of hypersonic/supersonic aircrafts, are challenging the time...
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Leonardo Riegel Sant'Anna,Tiago Pascoal Filomena,Denis Borenstein
Pág. 89 - 119
Index tracking is a passive investment strategy, which aims at generating portfolios to reproduce a specific market index?s performance. This article proposes a model for a index tracking problem with control on the number of assets in the portfolio, whi...
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João Frois Caldeira,Marcelo Savino Portugal
Pág. 469 - 504
The traditional models to optimize portfolios based on mean-variance analysis aim to determine the portfolio weights that minimize the variance for a certain return level. The covariance matrices used to optimize are difficult to estimate and ad hoc meth...
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Alwyn P. Du Plessis,Christo Boshoff
AbstractThis study analyses marketing and marketing activities from a consumer's point-of-view. It measures consumer attitudes towards the so-called 4 Ps (product, price, promotion and retailing) and converts these scores to an overall 'attitude towards ...
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Luis San Vicente Portes, Vidya Atal
The Economist magazine has been publishing the Big Mac Index using it as a rule of thumb to determine the over- or under-valuation of international currencies based on the theory of Purchasing Power Parity since 1986. According to the theory, using the B...
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Asra Nusrat, Yaan Li, Chunyan Cheng, Hafeezullah Qazi and Lingji Xu
This paper considers the problem of tracking a uniform moving source using noisy bearing measurements obtained from a distant observer. Observer trajectory optimization plays a central role in this problem, with the objective to minimize the estimation e...
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Ye Jin and Lizhen Cui
The rapid development of indoor localization techniques such as Wi-Fi and RFID makes it possible to obtain users? position-tracking data in indoor space. Indoor position-tracking data, also known as indoor moving trajectories, offer many new opportunitie...
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Sasan Adibi
This paper presents the mHealth Predictive Outbreak for COVID-19 (mPOC) framework, an autonomous platform based on wearable Internet of Medical Things (IoMT) devices for outbreak prediction and monitoring. It utilizes real-time physiological and environm...
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Salah El-Hendawy, Nasser Al-Suhaibani, Yaser Hassan Dewir, Salah Elsayed, Majed Alotaibi, Wael Hassan, Yahya Refay and Muhammad Usman Tahir
Hyperspectral sensing offers a quick and non-destructive alternative for assessing phenotypic parameters of plant physiological status and salt stress tolerance. This study compares the performance of published and modified spectral reflectance indices (...
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Stoyu I. Ivanov
In this study, we attempt to identify the asset which has the best hedging characteristics against inflation. We study stock, bond, commodity, real estate and oil indexes. We also study these indexes tracking exchange traded funds (ETFs) to determine the...
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Munyaradzi Chawana
AbstractA number of researchers have sought to test the theoretical prediction of Modern Portfolio Theory that asserts that Socially Responsible Investing (SRI) under-performs conventional investing. In contrast to the majority of literature, which focus...
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Virgilijus Sakalauskas and Dalia Kriksciuniene
The growing popularity of e-commerce has prompted researchers to take a greater interest in deeper understanding online shopping behavior, consumer interest patterns, and the effectiveness of advertising campaigns. This paper presents a fresh approach fo...
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Bowen Sui, Jianqiang Zhang, Zhong Liu and Junbao Wei
This paper proposes a fixed-time prescribed performance control technique to address the challenge of precise trajectory tracking control for unmanned surface vessels (USVs) in the presence of external time-varying disturbances and input saturation. To b...
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Shigang Qin and Deshun Liu
The stochastic fluctuations of wind speed and wind power curve modeling are complex tasks due to fluctuations in the difference between actual and theoretical power output, leading to a reduction in the accuracy of wind-power curve models. To address thi...
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Yue Hu, Zhixiang Fang, Xinyan Zou, Haoyu Zhong and Lubin Wang
Tourism activities essentially represent the interaction between crowds and attractions. Thus, crowd dynamics are critical to the quality of the tourism experience in personalized tour recommendations. In order to generate dynamic, personalized tour rout...
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Pedro Limón-Covarrubias, Leonardo Ambrosio Ochoa-Ambriz, David Avalos-Cueva, José Roberto Galaviz-González, María de la Luz Pérez-Rea and Manuel Alberto Gallardo-Sánchez
The Mexican asphalt paving industry is increasingly interested in using reclaimed asphalt pavement (RAP) to produce hot mix asphalt (HMA) due to its economic and environmental advantages. However, an ill-defined methodology for integrating RAP into the H...
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Wenliao Du, Xukun Hou and Hongchao Wang
It is difficult to accurately extract the health index of non-stationary signals of rolling bearings under variable rotational speed, which also leads to greater prediction error for bearing degradation models with fixed parameters. For this reason, an a...
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Guido Abate, Tommaso Bonafini and Pierpaolo Ferrari
Mean-variance optimization often leads to unreasonable asset allocations. This problem has forced scholars and practitioners alike to introduce portfolio constraints. The scope of our study is to verify which type of constraint is more suitable for achie...
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Alessio Vitali, Manuela Battipede and Angelo Lerro
Aviation contribution to global warming and anthropogenic climate change is increasing every year. To reverse this trend, it is crucial to identify greener alternatives to current aviation technologies and paradigms. Research in aircraft operations can p...
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