Optimization of combined time series methods to forecast the demand for coffee in Brazil: A new approach using Normal Boundary Intersection coupled with mixture designs of experiments and rotated factor scores

Bacci, Livio Agnew; Mello, Luiz Gustavo; Paula, T. I.; Paiva, Anderson Paulo de; Balestrassi, Pedro Paulo

doi:10.1016/j.ijpe.2019.03.001

Cited by 14 publications

(6 citation statements)

References 73 publications

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“…To obtain objective and subjective conclusions, an experimental evaluation must comprise two fundamental and interrelated components: (1) an experimental design, which refers to the planning process of the experiment so that the data can be collected, in a viable manner, for statistical analysis; and (2) an efficient statistical analysis of the data [19].…”

Section: Methodsmentioning

confidence: 99%

Evaluating the Throughput of Real-time Distance Education Services Supported by a Mobile Ad Hoc Network

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Benítez

Góez

et al. 2021

TecnoL.

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Tele-education went from being an option to becoming a necessity given the current public health problems. Due to this, the educational sector has included blended courses as part of its training offer. Mobile Ad Hoc Networks (MANETs) will therefore, become an important resource to work, under this class format, with students outside the classroom, in accordance with the standards recommended inside a university campus. MANETs require certain parameters that ensure the quality of communications and identify the factors that influence Quality of Service (QoS). The purpose of this study is to determine the factors that affect the quality of communications in a tele-education environment. For this purpose, the QoS of a MANET supporting a real-time video streaming is evaluated based on throughput. As a result, the main factors that directly or indirectly affect the operation of the network could be identified, which may help in making decisions regarding aspects such as the number of nodes and the node mobility speed. Moreover, the versatility and scalability of the MANET was proven, as when the number of nodes went from 5 to 10, throughput increased by 14 %. This also occurred with the transmission rate factor when the video was streamed in a channel with a variable bitrate (64–4096 kbps).

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Section: Methodsmentioning

confidence: 99%

Evaluating the Throughput of Real-time Distance Education Services Supported by a Mobile Ad Hoc Network

Cifuentes

Benítez

Góez

et al. 2021

TecnoL.

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“…A mixture design is generated considering n factors. A simplex lattice design is recommended, since this design was successfully used in a time series optimization forecast problem in (Bacci et al, 2019). Nevertheless, it is convenient to define lower and upper bounds to the values of the mixture design as will be explained later.…”

Section: Generate a Mixture Designmentioning

confidence: 99%

A multiobjective portfolio optimization for energy assets using D-Optimal design and mixture design of experiments

Leal

Romão

Reis

et al. 2022

Prod.

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Portfolio optimization is a term that can be understood as a problem whose main object is to encounter the most appropriate way to allocate the assets so that maximum returns and the smallest variability can be obtained (Garg & Deep, 2019). Markowitz first introduced the mean variance model in which the risk of the model is defined as the variance of the returns and nowadays many optimization portfolio studies are encountered in the literature (

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“…Afterwards, by entering the accident data into the prepared program, the Program Risk Factor (PRF) calculated by the program was found for each accident. PRF was compared with EMRF by using the value of RMSE and MAPE [22]. MAPE is 18,9, RMSE is 10,3.…”

Section: Simulation Of Meteorological Risk Assessment Modelmentioning

confidence: 99%

Meteorological Risk Assessment for Ships with Fuzzy Logic Designer

2020

International Journal of Fuzzy Systems and Advanced Applications

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Fuzzy Logic, an advanced method to support decision-making, is used by various scientists in many disciplines. Fuzzy programming is a product of fuzzy logic, fuzzy rules, and implication. In marine science, fuzzy programming for ships is dramatically increasing together with autonomous ship studies. In this paper, a program to support the decision-making process for ship navigation has been designed. The program is produced in fuzzy logic and rules, by taking the marine accidents and expert opinions into account. After the program was designed, the program was tested by 46 ship accidents reported by the Transportation Safety Investigation Center of Turkey. Wind speed, sea condition, visibility, day/night ratio have been used as input data. They have been converted into a risk factor within the Fuzzy Logic Designer application and fuzzy rules set by marine experts. Finally, the expert's meteorological risk factor for each accident is compared with the program's risk factor, and the error rate was calculated. The main objective of this study is to improve the navigational safety of ships, by using the advance decision support model. According to the study result, fuzzy programming is a robust model that supports safe navigation.

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Optimization of combined time series methods to forecast the demand for coffee in Brazil: A new approach using Normal Boundary Intersection coupled with mixture designs of experiments and rotated factor scores

Cited by 14 publications

References 73 publications

Evaluating the Throughput of Real-time Distance Education Services Supported by a Mobile Ad Hoc Network

Evaluating the Throughput of Real-time Distance Education Services Supported by a Mobile Ad Hoc Network

A multiobjective portfolio optimization for energy assets using D-Optimal design and mixture design of experiments

Meteorological Risk Assessment for Ships with Fuzzy Logic Designer

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