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André Alves Portela Santos
Pág. 141 - 166
Robust optimization has been receiving increased attention in the recent few years due to the possibility of considering the problem of estimation error in the portfolio optimization problem. A question addressed so far by very few works is whether this ...
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Volodymyr Shavranskyi,Georgiy Sementsov
Pág. 6 - 14
The paper addresses the task on constructing a method for the identification of complications, arising during oil and gas well drilling, which functions under conditions of an a priori and current uncertainty under the influence of various disturbances, ...
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Belokurov Sergey, Belokurov Vladimir, Zolnikov Vladimir, Cherkasov Oleg
Pág. 47 - 52
Efficiency of a transport enterprise can be substantially enhanced by optimization methods at the stages of synthesis, analysis and decision-taking, which makes it possible to obtain, in specific situation, the best of possible solutions. The simulation ...
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Alexander Herr
Surveys can be a rich source of information. However, the extraction of underlying variables from the analysis of mixed categoric and numeric survey data is fraught with complications when using grouping techniques such as clustering or ordination. Here ...
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Hossein Shahverdi, Mohammad Nabati, Parisa Fard Moshiri, Reza Asvadi and Seyed Ali Ghorashi
Human Activity Recognition (HAR) has been a popular area of research in the Internet of Things (IoT) and Human?Computer Interaction (HCI) over the past decade. The objective of this field is to detect human activities through numeric or visual representa...
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Oksana Mulesa,Fedir Geche,Volodymyr Nazarov,Mykhailo Trombola
Pág. 52 - 59
The problem of the development of models and methods for the estimation of the personnel potential of the health care institution is explored. Personnel potential is considered in terms of rendering medical services. It will be calculated as the maximum ...
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Karshiev Sanjar, Olimov Bekhzod, Jaesoo Kim, Anand Paul and Jeonghong Kim
Accurate house price forecasts are very important for formulating national economic policies. In this paper, we offer an effective method to predict houses? sale prices. Our algorithm includes one-hot encoding to convert text data into numeric data, feat...
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Gengkun Wu, Chuanxi Liu and Yongquan Liang
Based on fifty one groups of data on direction distribution measured from buoy sites, several important spectrum parameters including distribution characteristics of the measured data?s spectrum, the Wen?s direction spectrum and the Donelan function are ...
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Loviga Denny Pratama,Wahyu Setyaningrum
Pág. pp. 101 - 111
The present study investigates the difference effect of problem solving model with or without game-based learning (GBL) on lower and higher achievers?. Ninety-one students of grade eight (M = 13.9; SD = 0,5 year) from Indonesia were randomly allocated to...
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Melchor López Ávila, Rafael Larrúa Quevedo, Carlos Recarey Morfa
Pág. Page 145 - 156
A summary is presented with the main historical background in the analysis of the composite slabs with steel sheets subjected to flexion, as well as of the main methods of design, instrumentation and tests accepted by different International Standards. T...
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Guilherme B. Martins,Marcos Eugênio da Silva
Pág. pp. 141 - 172
This article develops a real option model with uncertain and sequential investment and with time to build. The model includes options to entry and to exit the activity and addresses the maximization problem of a company in view of the investment opportun...
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Sunghae Jun
In big data analysis, various zero-inflated problems are occurring. In particular, the problem of inflated zeros has a great influence on text big data analysis. In general, the preprocessed data from text documents are a matrix consisting of the documen...
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Mimi Mukherjee and Matloob Khushi
Real-world datasets are heavily skewed where some classes are significantly outnumbered by the other classes. In these situations, machine learning algorithms fail to achieve substantial efficacy while predicting these underrepresented instances. To solv...
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Serdar Erol, Emrah Özögel, Ramazan Alper Kuçak and Bihter Erol
This investigation evaluates the performance of digital terrain models (DTMs) generated in different vertical datums by aerial LiDAR and unmanned aerial vehicle (UAV) photogrammetry techniques, for the determination and validation of local geoid models. ...
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Alexander V. Ilyin,Vladimir D. Ilyin
Pág. 85 - 93
The updated technology of situational cost planning is considered as a set of methods and means of monitoring the state of a socio-economic project, building and analyzing portraits of situations, forming a set of requirements for the desired cost plan, ...
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Felipe Bravo,Douglas A. Maguire,Santiago C. González-Martínez
Pág. e07S
Aim of study: Our main goal is to determine the relationship between cone production and radial growth in Pinus pinaster Ait. under different climatic conditions across the Iberian Peninsula.Area of study: Coca Intensive Sampling Plateau, Northern Platea...
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