Two-Dimensional Warranty Policies – Decision Making Under Multiple Objectives

2012 ◽  
pp. 207-227 ◽  
Author(s):  
Amitava Mitra ◽  
Jayprakash G. Patankar
Keyword(s):  
Decision Making ◽  
Multiple Objectives ◽  
Two Dimensional ◽  
Warranty Policies

Varieties of Intra-Party Democracy

2017 ◽  
Author(s):  
Benjamin von dem Berge ◽  
Thomas Poguntke
Keyword(s):  
Decision Making ◽  
Political Parties ◽  
Political Party ◽  
The Political ◽  
Two Dimensional ◽  
Rare Exception ◽  
Empirical Analyses

This chapter introduces a new, two-dimensional way of measuring intra-party democracy (IPD). It is argued that assembly-based IPD and plebiscitary IPD are two theoretically different modes of intra-party decision-making. Assembly-based IPD means that discussion and decision over a certain topic takes place at the same time. Plebiscitary IPD disconnects the act of voting from the discussion over the alternatives that are put to a vote. In addition, some parties have opened up plebiscitary decision-making to non-members which is captured by the concept of open plebiscitary IPD. Based on the Political Party Database Project (PPDB) dataset, indices are developed for the three variants of IPD. The empirical analyses here show that assembly-based and plebiscitary IPD are combined by political parties in different ways while open party plebiscites are currently a rare exception.

scholarly journals Extended VIKOR-QUALIFLEX Method Based on Trapezoidal Fuzzy Two-Dimensional Linguistic Information for Multiple Attribute Decision-Making with Unknown Attribute Weight

Mathematics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 37
Author(s):  
Ye Li ◽  
Yisheng Liu
Keyword(s):  
Decision Making ◽  
Qualitative Evaluation ◽  
Multiple Attribute Decision Making ◽  
Two Dimensional ◽  
Linguistic Variables ◽  
Linguistic Information ◽  
Attribute Weight ◽  
Model Based ◽  
Subjective Weight ◽  
Multiple Attribute

Considering the advantages of trapezoid fuzzy two-dimensional linguistic variables (TrF2DLVs), which can not only accurately describe the qualitative evaluation but also use qualitative linguistic variables (LVs) to describe the confidence level of this evaluation in the second dimension, this paper proposes a novel method based on trapezoidal fuzzy two-dimensional linguistic information to solve multiple attribute decision-making (MADM) problems with unknown attribute weight. First, a combination weight model is constructed, which covers a subjective weight determination model based on the proposed trapezoidal fuzzy two-dimensional linguistic best-worst method (TrF2DL-BWM) and an objective weight determination model based on the proposed CRITIC method. Then, in order to accurately rank the alternatives, an extended VIKOR-QUALIFLEX method is proposed, which can measure the concordance index of each ranking combination by means of group utility and individual maximum regret value of each evaluation alternative. Finally, a practical problem of lean management assessment for industrial residential projects is solved by the proposed method, and the effectiveness and advantages of the method are demonstrated by comparative analysis and discussion.

scholarly journals Complex T-spherical fuzzy Dombi aggregation operators and their applications in multiple-criteria decision-making

2021 ◽  
Author(s):  
Faruk Karaaslan ◽  
Mohammed Allaw Dawood Dawood
Keyword(s):  
Decision Making ◽  
Sensitivity Analysis ◽  
Fuzzy Set ◽  
Multiple Criteria Decision Making ◽  
Aggregation Operators ◽  
Multi Criteria Decision Making ◽  
Two Dimensional ◽  
Weighted Arithmetic ◽  
Mcdm Method ◽  
Dombi Operations

AbstractComplex fuzzy (CF) sets (CFSs) have a significant role in modelling the problems involving two-dimensional information. Recently, the extensions of CFSs have gained the attention of researchers studying decision-making methods. The complex T-spherical fuzzy set (CTSFS) is an extension of the CFSs introduced in the last times. In this paper, we introduce the Dombi operations on CTSFSs. Based on Dombi operators, we define some aggregation operators, including complex T-spherical Dombi fuzzy weighted arithmetic averaging (CTSDFWAA) operator, complex T-spherical Dombi fuzzy weighted geometric averaging (CTSDFWGA) operator, complex T-spherical Dombi fuzzy ordered weighted arithmetic averaging (CTSDFOWAA) operator, complex T-spherical Dombi fuzzy ordered weighted geometric averaging (CTSDFOWGA) operator, and we obtain some of their properties. In addition, we develop a multi-criteria decision-making (MCDM) method under the CTSF environment and present an algorithm for the proposed method. To show the process of the proposed method, we present an example related to diagnosing the COVID-19. Besides this, we present a sensitivity analysis to reveal the advantages and restrictions of our method.

The Effect of Visual Illusions on the Graphical Display of Information

2010 ◽  
Vol 24 (1) ◽  
pp. 23-42 ◽  
Author(s):  
T. S. Amer ◽  
Sury Ravindran
Keyword(s):  
Decision Making ◽  
Decision Aids ◽  
Three Dimensional ◽  
Accounting Information ◽  
Theoretical Work ◽  
Visual Illusions ◽  
Graphical Display ◽  
Two Dimensional ◽  
Graphical Displays ◽  
Decision Biases

ABSTRACT: Graphical displays of business and accounting information are widely used as decision aids. Theoretical work in visual perception indicates graphs that exhibit certain characteristics create visual illusions that may result in biased decision making. This paper reports the results of an experiment that demonstrates how such two-dimensional and three-dimensional visual illusions cause viewers to make biased comparison judgments. The experiment also shows that these decision biases can be mitigated by including gridlines in both two- and three-dimensional graphs.

scholarly journals The Two–dimensional Model of Jury Decision Making

2010 ◽  
Vol 28 (1) ◽  
pp. 29-42
Author(s):  
Manfred J. Holler
Keyword(s):  
Decision Making ◽  
Utility Maximization ◽  
Simple Majority ◽  
Jury Decision Making ◽  
Two Dimensional ◽  
Dimensional Model ◽  
Single Group ◽  
Voting Game ◽  
Conflicting Interests ◽  
Jury Decision

Abstract This paper discusses a two-dimensional jury model. It combines the idea of winning a maximum of votes in a voting game with utility maximization that derives from the winning proposition. The model assumes a first mover, the plaintiff, and a second-mover, the counsel of the defendant. Typically, these agents represent parties that have conflicting interests. Here they face a jury that consists of three groups of voters such that no single group has a majority of votes. Each group is characterized by homogeneous preferences on three alternatives that describe the possible outcomes. The outcome is selected by a simple majority of the jury members. The agents are interested in both gaining the support of a majority of jury members and seeing their preferred alternative selected as outcome. It will be demonstrated that equilibrium decision making can be derived for this model.

Two-stage flexible warranty decision-making considering downtime loss

2019 ◽  
Vol 234 (3) ◽  
pp. 527-535
Author(s):  
Rui Zheng ◽  
Chun Su ◽  
Yuqiao Zheng
Keyword(s):  
Decision Making ◽  
Preventive Maintenance ◽  
Maintenance Cost ◽  
Service Cost ◽  
Decision Framework ◽  
Two Stage ◽  
Warranty Period ◽  
Second Stage ◽  
Warranty Service ◽  
Warranty Policies

Most existing warranty policies are rigid, and the downtime loss is also not taken into account. This study develops a two-stage decision framework to design flexible warranty policies, where the downtime loss is considered. In the first stage, by minimizing the warranty service cost, a fixed warranty policy is provided to determine the baseline of preventive maintenance’s times and effort. In the second stage, customers have three options to increase preventive maintenance times, preventive maintenance effort, or both of them, which results in three types of flexible warranty policies. The additional maintenance cost for the increased preventive maintenance times and/or preventive maintenance effort is paid by the customers. Besides, the flexible policies are optimized to minimize customer’s cost, which is the sum of the downtime loss and shared maintenance cost. A practical example is provided to illustrate the effectiveness of the proposed flexible warranty policies. The results indicate that compared with the fixed warranty policies, both the manufacturer and customers can benefit from the proposed flexible policies, especially when the downtime loss is substantial. Moreover, the proposed policy is more effective when the warranty period is longer.

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