Uncertainty Modeling
Mostrando 1-12 de 71 artigos, teses e dissertações.
-
1. Dynamic anisotropy and non-linear geostatistics supporting short term modelling of structurally complex gold mineralization
Abstract Non-linear geostatistical methods are known to deal appropriately with the geological and geometrical complexity of gold deposits. This article reports the results related to an investigation to improve the gold content estimate based on restricted ore modeling to honor the structural aspects that control the mineralization. The grade domains are de
REM, Int. Eng. J.. Publicado em: 2021-06
-
2. Uncertainty estimation in hydrodynamic modeling using Bayesian techniques
RESUMO A avaliação de incertezas tem emergido como estudo primordial para se conhecerem os efeitos dos erros inerentes aos processos de modelagem de perfis de escoamento de vazões de cheia, de natureza aleatória e epistêmica, presentes em dados de entrada como vazões e topobatimetria, na estrutura e parametrização dos modelos matemáticos utilizados
RBRH. Publicado em: 17/10/2019
-
3. Classification of successional stages in atlantic forests: a methodological approach based on a fuzzy expert system
Resumo O presente trabalho tem como objetivo propor e avaliar um método baseado em modelagem fuzzy para classificação de estágios de sucessão florestal. A construção do modelo considerou critérios estabelecidos pela Resolução CONAMA no 01 de 31 de janeiro de 1994, que define vegetação secundária nos estágios inicial, médio e avançado de regen
Ciênc. Florest.. Publicado em: 30/09/2019
-
4. A stochastic approach for measuring the uncertainty of claims reserves
RESUMO Este trabalho visa a obter métricas para a quantificação da variabilidade das provisões técnicas de sinistros, fazendo uso de modelos determinísticos e estocásticos. Em suma, tudo o que os métodos tradicionais não fornecem (medidas de variabilidade e de insuficiência de capital) são de fundamental importância para uma gestão atuarial efic
Rev. contab. finanç.. Publicado em: 27/06/2019
-
5. Value-based medicine in oncology: the importance of perspective in the emerging value frameworks
Recently, professional and healthcare-related entities have launched frameworks designed to assess the value of cancer innovations in multistakeholder decision processes. Among the most visible entities that propose and implement value frameworks in oncology are the European Society of Medical Oncology (ESMO), the American Society of Clinical Oncology (ASCO)
Clinics. Publicado em: 10/12/2018
-
6. Production line performance analysis within a MTS/MTO manufacturing framework: a queueing theory approach
Abstract Paper aims Mixing the Make-To-Stock (MTS) and Make-To-Order (MTO) strategies to benefit from the both manufacturing systems in an environment with impatient customers. Originality This is the first research article which uses the queuing theory to find the best place of the Order Penetration Point (OPP) in a production line with impatient custom
Prod.. Publicado em: 23/07/2018
-
7. Geological modeling by an indicator kriging approach applied to a limestone deposit in Indiara city - Goiás
Abstract The mineral exploration activity consists of a set of successive stages that are interdependent on each other, in which the main goal is to discover and subsequently evaluate a mineral deposit for the feasibility of its extraction. This process involves setting the shape, dimensions and grades for eventual production. Geological modeling determines
REM, Int. Eng. J.. Publicado em: 2017-09
-
8. MULTICRITERIA ANALYSIS OF FOOTBALL MATCH PERFORMANCES: COMPOSITION OF PROBABILISTIC PREFERENCES APPLIED TO THE ENGLISH PREMIER LEAGUE 2015/2016
ABSTRACT This article aims to analyze the technical performance of football teams in the FA Premier League during the 2015/2016 season. Data of twenty clubs over 38 matches for each club are considered using 23 variables. These variables have been explored in the football literature and address different features of technical performance. The different confi
Pesqui. Oper.. Publicado em: 2017-08
-
9. Multidisciplinary Design Optimization of UAV Under Uncertainty
ABSTRACT: Uncertainty-based multidisciplinary design optimization considers probabilistic variables and parameters and provides an approach to account for sources of uncertainty in design optimization. The aim of this study was to apply a decoupling uncertainty-based multidisciplinary design optimization method without any dependence on probability mathemati
J. Aerosp. Technol. Manag.. Publicado em: 2017-06
-
10. Using multiple random walk simulation in short-term grade models
Abstract Geostatistical simulation comprises a variety of techniques which can help on the decision-making process for uncertainties. They allow the uncertainty assessment of function responses (which depend on the simulated inputs) commonly through a non-linear relationship (net present value, interest tax return, geometallurgical ore recovery...). However,
REM, Int. Eng. J.. Publicado em: 2017-06
-
11. Hydrological Modeling of Tributaries of Cantareira System, Southeast Brazil, with the Swat Model
ABSTRACT The lack of hydrological data in Brazil is the main limitation for structuring hydrological models, which are able to assist water resources management. Therefore, studies are needed to evaluate the performance of models without on-site calibration. Within this context, the aim of this study was to calibrate the SWAT hydrological model for the Caman
Eng. Agríc.. Publicado em: 2016-12
-
12. Valuing flexibility in electro-intensive industries: the case of an aluminum smelter
Abstract Electro-intensive industries account for a significant proportion of the total industrial electricity consumption, and these industries usually possess co-generation assets, which can supply at least part of their energy needs. However, due to price uncertainty, it may be optimal for the firm to temporarily suspend production and sell the available
Prod.. Publicado em: 10/11/2015