scholarly journals Utility-Based Multicriteria Model for Screening Patients under the COVID-19 Pandemic

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Lucia Reis Peixoto Roselli ◽  
Eduarda Asfora Frej ◽  
Rodrigo José Pires Ferreira ◽  
Alexandre Ramalho Alberti ◽  
Adiel Teixeira de Almeida
Keyword(s):  
Mathematical Model ◽  
Decision Problem ◽  
Utility Theory ◽  
Health Resources ◽  
Medical Decision ◽  
Multiattribute Utility ◽  
Multiattribute Utility Theory ◽  
Number Of Patients ◽  
Multicriteria Model ◽  
The Mathematical Model

In this paper, a utility-based multicriteria model is proposed to support the physicians to deal with an important medical decision—the screening decision problem—given the squeeze put on resources due to the COVID-19 pandemic. Since the COVID-19 emerged, the number of patients with an acute respiratory failure has increased in the health units. This chaotic situation has led to a deficiency in health resources. Thus, this study, using the concepts of the multiattribute utility theory (MAUT), puts forward a mathematical model to aid physicians in the screening decision problem. The model is used to generate which of the three alternatives is the best one for where patients with suspected COVID-19 should be treated, namely, an intensive care unit (ICU), a hospital ward, or at home in isolation. Also, a decision information system, called SIDTriagem, is constructed and illustrated to operate the mathematical model proposed.

scholarly journals Sistemática para avaliação multicriterial de investimentos no desenvolvimento de produtos

Production ◽  
2011 ◽  
Vol 21 (4) ◽  
pp. 570-582 ◽  
Author(s):  
Alejandro Germán Frank ◽  
Diego Vinicius Souza ◽  
Márcia Elisa Echeveste ◽  
José Luis Duarte Ribeiro
Keyword(s):  
Quality Function Deployment ◽  
Utility Theory ◽  
Multiattribute Utility ◽  
Quality Function ◽  
Multiattribute Utility Theory

Este artigo apresenta uma sistemática para avaliação multicriterial de investimentos associados ao desenvolvimento de produtos. A sistemática proposta se apoia nos critérios-chave a serem considerados na tomada de decisão. Ela é baseada na utilização dos métodos de avaliação econômica de investimentos VPL e payback, assim como nas ferramentas de desenvolvimento de produtos, QFD (Quality Function Deployment) e SWOT (Strenght-Weaknesses-Oportunities-Threats), utilizadas como suporte para a construção do método de avaliação multicriterial MAUT (Multiattribute Utility Theory). A sistemática proposta apresenta duas contribuições principais: i) a análise integrada de três critérios-chave para a decisão de investimentos em novos produtos: rentabilidade (considerada na avaliação econômica), qualidade (considerada no QFD) e estratégia (considerada no SWOT) e ii) uma modificação nas ponderações utilizadas na avaliação do MAUT, que reduz a subjetividade da atribuição de valores. A abordagem proposta foi avaliada em um caso aplicado e os resultados obtidos são discutidos.

CHOQUET INTEGRAL MODELS AND INDEPENDENCE CONCEPTS IN MULTIATTRIBUTE UTILITY THEORY

2000 ◽  
Vol 08 (04) ◽  
pp. 385-415 ◽  
Author(s):  
T. MUROFUSHI ◽  
M. SUGENO
Keyword(s):  
Utility Function ◽  
Utility Theory ◽  
Choquet Integral ◽  
Fuzzy Measure ◽  
Multiattribute Utility ◽  
Preference Relations ◽  
Multiattribute Utility Theory ◽  
A Value ◽  
Utility Independence

This paper discusses multiattribute preference relations compatible with a value/utility function represented by the Choquet integral with respect to a fuzzy measure, and shows that the additivity of the fuzzy measure is equivalent to each of mutual preferential independence, mutual weak difference independence, mutual difference independence, mutual utility independence, and additive independence.

Testing the Effect of Risk Attitude on Auditor Judgments Using Multiattribute Utility Theory

1993 ◽  
Vol 8 (1) ◽  
pp. 91-110 ◽  
Author(s):  
Timothy A. Farmer
Keyword(s):  
Risk Aversion ◽  
Internal Control ◽  
Utility Theory ◽  
Risk Preference ◽  
Risk Attitude ◽  
Test Results ◽  
Multiattribute Utility ◽  
Multiattribute Utility Theory ◽  
Auditor Judgments ◽  
The Individual

The scaling constant of multiattribute utility functions derived for each of 15 practicing auditors was used to measure risk attitude for the subjects. The risk preference or risk aversion indicated by this metric allowed categorization of the auditors to test for an effect of risk attitude on audit judgments. The sample showed both risk aversion and risk preference among the auditors. The correlations among auditor evaluations of hypothetical internal control compliance test results were generally high and were different for audit seniors than for audit managers. Risk attitude was not found to explain the differences across rank nor the individual differences in consensus.

scholarly journals MULTIATTRIBUTE UTILITY THEORY, INTERTEMPORAL UTILITY, AND CORRELATION AVERSION

2018 ◽  
Vol 59 (2) ◽  
pp. 537-555 ◽  
Author(s):  
Steffen Andersen ◽  
Glenn W. Harrison ◽  
Morten I. Lau ◽  
E. Elisabet Rutström
Keyword(s):  
Utility Theory ◽  
Multiattribute Utility ◽  
Multiattribute Utility Theory

A European randomised controlled trial for venous leg ulcers: a mathematical model analysis

2020 ◽  
Vol 29 (11) ◽  
pp. 678-685
Author(s):  
Regina Renner
Keyword(s):  
Mathematical Model ◽  
Wound Healing ◽  
Linear Growth ◽  
Controlled Trial ◽  
Growth Function ◽  
Wound Area ◽  
Number Of Patients ◽  
N 93 ◽  
Randomised Controlled ◽  
The Mathematical Model

Objective: Mathematical models have the potential to provide valuable insights into complex, biochemical and biomechanical processes. Previously, we developed a mathematical model with a non-linear growth function but could only confirm the feasibility of this model in clinical trials with a small number of patients. This limited the validity of our model. To increase validity, we applied the model to a larger number of patients. Method: The mathematical model was applied to patient data from a randomised controlled trial as part of the post-evaluation of the model. In this trial, patients with venous leg ulcers were randomised for treatment with either a two-layer bandage or a four-layer bandage. Results: Data for 186 patients were analysed (two-layer bandage group, n=93; four-layer bandage group, n=93). Using the non-linear growth function, it was confirmed that the two-layer bandage was not inferior to the four-layer bandage. In addition, the mathematical model calculated individual wound healing trajectories and mean wound healing trajectories for both bandage systems. By extrapolating to t→∞, the two-layer bandage had a marginal benefit and resulted in a persistent wound area that was 7% of the initial wound area compared with 17% for the four-layer bandage. Conclusion: This analysis supported the previously performed statistical analysis, and allowed us to obtain details of the treated study population that may help in non-inferiority trials via extrapolation. It also provided new insights into the wound healing process by generating wound healing trajectories.

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