Mahalanobis-Taguchi system: state of the art

2018 ◽  
Vol 35 (3) ◽  
pp. 596-613 ◽  
Author(s):  
Cecilia Guadalupe Mota-Gutiérrez ◽  
Edgar Omar Reséndiz-Flores ◽  
Yadira Iracema Reyes-Carlos
Keyword(s):  
Decision Making ◽  
Pattern Recognition ◽  
Analytical Method ◽  
Design Methodology ◽  
State Of The Art ◽  
System State ◽  
Content Type ◽  
Medicine Education ◽  
Study Application

Purpose The purpose of this paper is to show a bibliographical review of the applications of the MTS throughout the time and the different fields. Design/methodology/approach The Mahalanobis-Taguchi system (MTS) is an analytical method used for the diagnosis and/or pattern recognition of multivariate data for quantitative decision making. Findings Its scope is very broad, ranging from engineering, medicine, education, and manufacturing, among others. This work presents a classification of the literature in the following areas of the MTS: introduction of the method, cases of study/application, comparison with other methods, integration and development of the MTS with other methods, construction of Mahalanobis space, dimensional reduction and threshold establishment. It realized a wide search of the publications in magazines and congresses. Originality/value This paper is a summary of the main applications, contributions and changes to MTS.

The SOMOAR operationalization: a holistic concept to travel decision modelling

2019 ◽  
Vol 74 (3) ◽  
pp. 613-631 ◽  
Author(s):  
Christian Laesser ◽  
Jieqing Luo ◽  
Pietro Beritelli
Keyword(s):  
Decision Making ◽  
Design Methodology ◽  
State Of The Art ◽  
Holistic Approach ◽  
The Body ◽  
Content Type ◽  
Stimulus Response ◽  
Holistic Concept ◽  
Travel Decision ◽  
Interpretative Research

Purpose Most state-of-the-art approaches for the analysis of the process of travel decision-making follow Woodworth’s neo-behaviouristic S–R (stimulus–response) or S–O–R (stimulus–organism–response) model. However, within this model, scholars primarily focus on the S–R relationship, investigating specific decisions by describing or explaining an outcome as the result of an input of several stimuli. There is a lack of investigation into the “O” dimension of the S–O–R model. This paper aims to contribute towards closing of this gap by conceptually and holistically expanding existing models with new perspectives and components. Design/methodology/approach The authors base the conceptual process on a subjective/interpretative research paradigm, by combining outcomes from different theories and concepts into a new, more holistic approach; and challenging this approach by seeking counterarguments as well as supportive arguments at three conferences and workshops. Findings The paper expands the body of literature by positing a generic conceptual operationalization model focusing on the organism (“O”) domain of decision-making. To achieve this, and further to operationalize the S–O–R model, the paper proposes to integrate an M–O–A (motivation–opportunity–ability) approach. Originality/value The analysis of the body literature reveals that there is still a lack of analytical and especially workable models/approaches for the analysis of the process of tourist decision-making. The paper contributes to that discussion by offering an alternative and generic operationalization of the tourist decision-making process by inducing a theoretical framework from the deductions gleaned from a number of existing theories.

Modelling competitive advantage of nation: a literature review

2017 ◽  
Vol 27 (4) ◽  
pp. 335-365 ◽  
Author(s):  
Muhammad Hanafi ◽  
Dermawan Wibisono ◽  
Kuntoro Mangkusubroto ◽  
Manahan Siallagan ◽  
Mila Jamilah Khatun Badriyah
Keyword(s):  
Literature Review ◽  
Competitive Advantage ◽  
Design Methodology ◽  
State Of The Art ◽  
Future Research ◽  
Content Type ◽  
Research And Teaching ◽  
Research Gap ◽  
Solution Methodology

Purpose This paper aims to create a mapping of competitive advantage of nations (CAN) from research using some previous studies and recommend future research. Design/methodology/approach This paper applies a systematic literature review on the most recent studies of CAN. The research gap is analysed based on several categories: implication (strategy and policy, portrait); general characteristics (fundamental issues, indicators and patterns); solution methodology and strategic level (nation and industry). Then, the state-of-the-art analysis is used to develop future research. Findings The results of this study recommend future research of CAN based on the following CAN categories: implication (strategy and policy, portrait); general characteristics (fundamental issues, indicators and patterns); solution methodology and strategic level (nation and industry). Research limitations/implications This literature review has important implications and gives direction for research and teaching, as well as for further investigation of CAN. The limitation lies in the classification of patterns, which requires further study to avoid the ambiguity of grouping. Originality/value This is the first literature review about CAN using categories. It is of value in building future research of CAN in different industries and nations.

Information processing by elderly consumers: a five-decade review

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Gianluigi Guido ◽  
Marco Pichierri ◽  
Cristian Rizzo ◽  
Verdiana Chieffi ◽  
George Moschis
Keyword(s):  
Information Processing ◽  
Design Methodology ◽  
State Of The Art ◽  
Relevant Literature ◽  
Academic Research ◽  
The Elderly ◽  
Marketing Strategies ◽  
Content Type ◽  
Processing Activity ◽  
Elderly Consumers

Purpose The purpose of this study is to review scholarly research on elderly consumers’ information processing and suggest implications for services marketing. Design/methodology/approach The review encompasses a five-decade period (1970–2018) of academic research and presents relevant literature in four main areas related to information processing: sensation, attention, interpretation and memory. Findings The study illustrates how each of the aforementioned phases of the information processing activity may affect how elderly individuals buy and consume products and services, emphasizing the need for a better comprehension of the elderly to develop effectual marketing strategies. Originality/value The study provides readers with detailed state-of-the-art knowledge about older consumers’ information processing, offering a comprehensive review of academic research that companies can use to improve the effectiveness of their marketing efforts that target the elderly market.

Employing needs-based funding formulae – some unavoidable tradeoffs

2017 ◽  
Vol 31 (7) ◽  
pp. 1092-1102
Author(s):  
Tal Gilead ◽  
Iris BenDavid-Hadar
Keyword(s):  
Decision Making ◽  
Resource Allocation ◽  
Design Methodology ◽  
Social Equity ◽  
School Resources ◽  
Content Type ◽  
Funding Formula ◽  
Policy Goals ◽  
Theoretical Investigations ◽  
Schooling System

Purpose The method by which the state allocates resources to its schooling system can serve as an important instrument for achieving desired improvements in levels of educational attainment, social equity and other social policy goals. In many school systems, the allocation of school resources is done according to a needs-based funding formula. The purpose of this paper is to provide a deeper understanding of some significant tradeoffs involved in employing needs-based funding formulae. Design/methodology/approach The paper is based on theoretical investigations of normative aspects involved in using needs-based funding formulae. Findings There are a number of underexplored complications and difficulties that arise from the use of needs-based funding formulae. Dealing with these involves significant tradeoffs that require taking normative decisions. Understanding these tradeoffs is important for improving the use of needs-based funding formulae. Originality/value The paper highlights three under-examined issues that emerge from the current use of needs-based funding formulae. These issues are: to what extent funding formulae should be responsive to social and economic needs? To what extent should funding formulae allow for the use of discretion in resource allocation? To what degree needs-based formulae funding should be linked to outcomes? By discussing these issues and the tradeoffs involved in them, the paper provides a deeper understanding of significant aspects stemming from the use of needs-based funding formulae. This, in turn, can serve as a basis for an improved and better informed process for decision making regarding the use of funding formulae.

Has Lean improved organizational decision making?

2016 ◽  
Vol 29 (5) ◽  
pp. 536-549 ◽  
Author(s):  
Pascale Simons ◽  
Jos Benders ◽  
Jochen Bergs ◽  
Wim Marneffe ◽  
Dominique Vandijck
Keyword(s):  
Decision Making ◽  
Design Methodology ◽  
Lean Management ◽  
Structured Interviews ◽  
Organizational Decision Making ◽  
Content Type ◽  
Organizational Contexts ◽  
Sustainable Improvement ◽  
Care Processes ◽  
Practical Implications

Purpose – Sustainable improvement is likely to be hampered by ambiguous objectives and uncertain cause-effect relations in care processes (the organization’s decision-making context). Lean management can improve implementation results because it decreases ambiguity and uncertainties. But does it succeed? Many quality improvement (QI) initiatives are appropriate improvement strategies in organizational contexts characterized by low ambiguity and uncertainty. However, most care settings do not fit this context. The purpose of this paper is to investigate whether a Lean-inspired change program changed the organization’s decision-making context, making it more amenable for QI initiatives. Design/methodology/approach – In 2014, 12 professionals from a Dutch radiotherapy institute were interviewed regarding their perceptions of a Lean program in their organization and the perceived ambiguous objectives and uncertain cause-effect relations in their clinical processes. A survey (25 questions), addressing the same concepts, was conducted among the interviewees in 2011 and 2014. The structured interviews were analyzed using a deductive approach. Quantitative data were analyzed using appropriate statistics. Findings – Interviewees experienced improved shared visions and the number of uncertain cause-effect relations decreased. Overall, more positive (99) than negative Lean effects (18) were expressed. The surveys revealed enhanced process predictability and standardization, and improved shared visions. Practical implications – Lean implementation has shown to lead to greater transparency and increased shared visions. Originality/value – Lean management decreased ambiguous objectives and reduced uncertainties in clinical process cause-effect relations. Therefore, decision making benefitted from Lean increasing QI’s sustainability.

Learning from criticisms of quality management

2015 ◽  
Vol 7 (2/3) ◽  
pp. 201-216 ◽  
Author(s):  
Gilles Barouch ◽  
Stéphane Kleinhans
Keyword(s):  
Quality Management ◽  
Literature Review ◽  
Design Methodology ◽  
State Of The Art ◽  
Senior Managers ◽  
Content Type ◽  
Adequate Response ◽  
Academic Results

Purpose – This paper aims at summing up the main criticisms concerning quality management (QM) in order to address them through objective arguments or extant research. Since its diffusion in the Occident in the 70s, QM gained as much approvals as criticisms. Therefore, with 40 years distance, it seems useful to sum up the main criticisms addressed to QM, to present a synthesis of the answers provided by researchers to these criticisms and to propose extant research when it appears that some criticisms have not received yet the adequate response. Design/methodology/approach – This paper is based on a literature review. Findings – This paper comes up with a list of the main criticisms addressed to QM. Then, main causes of criticisms are identified: ignorance of QM, confusion concerning QM definitions and theory and misuse of QM by senior managers. At last, QM organizational solutions are proposed which answer most expressed criticisms. Extant research tracks are considered for those relevant criticisms which have not been sufficiently addressed until now. Research limitations/implications – Further research will look into depicting a survey conducted among QM professionals concerning QM criticisms in their organization and confronting them to these academic results. Originality/value – This paper actualizes and completes Giroux and Landry’s (1998) article which dealt extensively with QM criticisms. Professionals will find in this paper answers to most criticisms against QM and a better understanding of the present limits of this discipline. Researchers will be provided with a state of the art concerning this sensitive topic, allowing them to go deeper in the fields that require special attention.

scholarly journals A surrogate-based generic classifier for Chinese TV series reviews

2017 ◽  
Vol 45 (2) ◽  
pp. 66-74
Author(s):  
Yufeng Ma ◽  
Long Xia ◽  
Wenqi Shen ◽  
Mi Zhou ◽  
Weiguo Fan
Keyword(s):  
Design Methodology ◽  
Experimental Result ◽  
Digital Information ◽  
Data Set ◽  
Content Type ◽  
Category Labels ◽  
Information Supply Chain ◽  
Feature Selection Techniques ◽  
Practical Implications

Purpose The purpose of this paper is automatic classification of TV series reviews based on generic categories. Design/methodology/approach What the authors mainly applied is using surrogate instead of specific roles or actors’ name in reviews to make reviews more generic. Besides, feature selection techniques and different kinds of classifiers are incorporated. Findings With roles’ and actors’ names replaced by generic tags, the experimental result showed that it can generalize well to agnostic TV series as compared with reviews keeping the original names. Research limitations/implications The model presented in this paper must be built on top of an already existed knowledge base like Baidu Encyclopedia. Such database takes lots of work. Practical implications Like in digital information supply chain, if reviews are part of the information to be transported or exchanged, then the model presented in this paper can help automatically identify individual review according to different requirements and help the information sharing. Originality/value One originality is that the authors proposed the surrogate-based approach to make reviews more generic. Besides, they also built a review data set of hot Chinese TV series, which includes eight generic category labels for each review.

Using transfer learning for diabetic retinopathy stage classification

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Enas M.F. El Houby
Keyword(s):  
Diabetic Retinopathy ◽  
Transfer Learning ◽  
Grade Level ◽  
Design Methodology ◽  
Content Type ◽  
Stage Classification ◽  
Set Up ◽  
Retinal Fundus ◽  
Automated Methods

PurposeDiabetic retinopathy (DR) is one of the dangerous complications of diabetes. Its grade level must be tracked to manage its progress and to start the appropriate decision for treatment in time. Effective automated methods for the detection of DR and the classification of its severity stage are necessary to reduce the burden on ophthalmologists and diagnostic contradictions among manual readers.Design/methodology/approachIn this research, convolutional neural network (CNN) was used based on colored retinal fundus images for the detection of DR and classification of its stages. CNN can recognize sophisticated features on the retina and provides an automatic diagnosis. The pre-trained VGG-16 CNN model was applied using a transfer learning (TL) approach to utilize the already learned parameters in the detection.FindingsBy conducting different experiments set up with different severity groupings, the achieved results are promising. The best-achieved accuracies for 2-class, 3-class, 4-class and 5-class classifications are 86.5, 80.5, 63.5 and 73.7, respectively.Originality/valueIn this research, VGG-16 was used to detect and classify DR stages using the TL approach. Different combinations of classes were used in the classification of DR severity stages to illustrate the ability of the model to differentiate between the classes and verify the effect of these changes on the performance of the model.

Jumping to conclusions – an analysis of the NBA Draft Combine athleticism data and its influence on managerial decision-making

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Tobias Berger ◽  
Frank Daumann
Keyword(s):  
Decision Making ◽  
Design Methodology ◽  
Predictive Power ◽  
Principal Component ◽  
Decision Makers ◽  
Decision Quality ◽  
Managerial Behavior ◽  
Managerial Decision ◽  
Content Type ◽  
Selection Behavior

PurposeThe NBA Draft policy pursues the goal to provide the weakest teams with the most talented young players to close the gap to the superior competition. But it hinges on appropriate talent evaluation skills of the respective organizations. Research suggests the policy might be valid but to date unable to produce its intended results due to the “human judgement-factor”. This paper investigates specific managerial selection-behavior-influencing information to examine why decision-makers seem to fail to constantly seize the opportunities the draft presents them with.Design/methodology/approachAthleticism data produced within the NBA Draft Combine setting is strongly considered in the player evaluations and consequently informs the draft decisions of NBA managers. Curiously, research has failed to find much predictive power within the players pre-draft combine results for their post-draft performance. This paper investigates this clear disconnect, by examining the pre- and post-draft data from 2000 to 2019 using principal component and regression analysis.FindingsEvidence for an athletic-induced decision-quality-lowering bias within the NBA Draft process was found. The analysis proves that players with better NBA Draft Combine results tend to get drafted earlier. Controlling for position, age and pre-draft performance there seems to be no proper justification based on post-draft performance for this managerial behavior. This produces systematic errors within the structure of the NBA Draft process and leads to problematic outcomes for the entire league-policy.Originality/valueThe paper delivers first evidence for an athleticism-induced decision-making bias regarding the NBA Draft process. Informing future selection-behavior of managers this research could improve NBA Draft decision-making quality.

Are the saving decision patterns of bank customers also clouded by psychological biases? Evidence from Ghana

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Joseph Emmanuel Tetteh ◽  
Christopher Boachie
Keyword(s):  
Decision Making ◽  
Loss Aversion ◽  
Design Methodology ◽  
Weighted Least Squares ◽  
Least Squares Regression ◽  
Individual Decision ◽  
Content Type ◽  
Saving Decisions ◽  
The Individual ◽  
Practical Implications

PurposeThis paper attempts to investigate the influence of psychological biases on saving decision-making of bank customers in Ghana.Design/methodology/approachIt employs weighted least squares regression to test the effect of psychological biases on savings decisions of bank customers.FindingsThe findings show that all the nine psychological biases, namely mental accounting, availability, loss aversion, representativeness, anchoring, overconfidence, status quo, framing effect and disposition effect employed for the study have a significant influence on saving decision of bank customers. The results depict that psychological biases are entrenched in the saving pattern of bank customers in Ghana.Practical implicationsFor policy purposes, the study recommends that bank customers need to enhance their knowledge of psychological biases in order to improve their gains from savings, and not to fall prey to these prejudices. The satisfied customer is a dependable source of bank viability and survival.Originality/valueTo the best of the knowledge of the author, this study provides the first empirical evidence of the influence of psychological biases on saving decisions of bank customers in Ghana. The findings of this study will enhance knowledge on the influence of psychological biases on individual decision-making and will accentuate the fact that the individual is not an entirely rational being.

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