2105 Optimizing the Decision Making Process for Large-Scale Design Problems According to the Interrelationships among Criteria

2001 ◽  
Vol 2001.11 (0) ◽  
pp. 94-97
Author(s):  
Yoshihisa FUJIMI ◽  
Masataka YOSHIMURA ◽  
Kazuhiro IZUI
2019 ◽  
Vol 25 (2) ◽  
pp. 213-235 ◽  
Author(s):  
Soumava Boral ◽  
Sanjay Kumar Chaturvedi ◽  
V.N.A. Naikan

Purpose Usually, the machinery in process plants is exposed to harsh and uncontrolled environmental conditions. Even after taking different types of preventive measures to detect and isolate the faults at the earliest possible opportunity becomes a complex decision-making process that often requires experts’ opinions and judicious decisions. The purpose of this paper is to propose a framework to detect, isolate and to suggest appropriate maintenance tasks for large-scale complex machinery (i.e. gearboxes of steel processing plant) in a simplified and structured manner by utilizing the prior fault histories available with the organization in conjunction with case-based reasoning (CBR) approach. It is also demonstrated that the proposed framework can easily be implemented by using today’s graphical user interface enabled tools such as Microsoft Visual Basic and similar. Design/methodology/approach CBR, an amalgamated domain of artificial intelligence and human cognitive process, has been applied to carry out the task of fault detection and isolation (FDI). Findings The equipment failure history and actions taken along with the pertinent health indicators are sufficient to detect and isolate the existing fault(s) and to suggest proper maintenance actions to minimize associated losses. The complex decision-making process of maintaining such equipment can exploit the principle of CBR and overcome the limitations of the techniques such as artificial neural networks and expert systems. The proposed CBR-based framework is able to provide inference with minimum or even with some missing information to take appropriate actions. This proposed framework would alleviate from the frequent requirement of expert’s interventions and in-depth knowledge of various analysis techniques expected to be known to process engineers. Originality/value The CBR approach has demonstrated its usefulness in many areas of practical applications. The authors perceive its application potentiality to FDI with suggested maintenance actions to alleviate an end-user from the frequent requirement of an expert for diagnosis or inference. The proposed framework can serve as a useful tool/aid to the process engineers to detect and isolate the fault of large-scale complex machinery with suggested actions in a simplified way.


2014 ◽  
Vol 805 ◽  
pp. 415-421
Author(s):  
Max Martins ◽  
Carlos Teixeira ◽  
Beck Nader ◽  
Giorgio de Tomi

Modern mining activities are very intense in capital use, highly mechanized and as a consequence, present high operational costs. In this sense the appeal for managing operational variables adequately is very attractive since these have a huge impact in the overall costs. Reportedly, one of the most expensive mining activities is the transportation of in situ material to its destination. In this regard, the correct management of the important operational variables coupled with the experience gathered in mining operations, allowed the development of a computer system aimed at helping to achieve these management objectives. This paper describes the relation between measurable variables and economic parameters obtained in one important large scale Brazilian mine and how they interact and relate to each other in order to facilitate the decision making process.


Author(s):  
Lacy S. Brown ◽  
Karen K. Dixon ◽  
H. Gene Hawkins

Research suggests that successfully implemented access management programs can reduce delay, increase capacity, and improve safety performance on single roadway segments and across larger roadway networks. However, quantifying how access management, as a single entity, might affect a transportation system is difficult because countless combinations of strategies can be implemented. Consequently, large-scale access management decisions are often based on subjective assessments and the engineering judgment of practitioners and decision makers. There is a need for a standard, objective, and quantifiable approach to evaluating the impacts and performance of large-scale access management applications. This paper presents a quantitative method for evaluating an access management project on factors including operations; safety; impacts to adjacent land uses; and bicycle, pedestrian, and transit facilities. The result is an access management rating (AMR), a numerical value that allows for straightforward comparisons between corridors or between design alternatives on the same corridor. The proposed methodology eliminates the subjective component of the decision-making process while maintaining enough flexibility to be tailored to a specific agency’s needs and priorities. By improving the consistency of access management evaluations, the decision-making process will be streamlined, funding will be allocated to projects with the greatest needs and opportunities for improvement, and the entire transportation industry will benefit from improved safety, operations, and land use development.


2011 ◽  
Vol 79 (1) ◽  
pp. 81-102 ◽  
Author(s):  
Oded Korczyn

AbstractThis paper will shed light on the deportation process of visaless sojourners staying and working in Israel. I will explain how state bureaucrats, specifically border control officers of the Enforcement Unit of the Interior Ministry (in Hebrew,hamemune al bikoret hagvulot beyekhidat ha'akhifa, misrad hapnim) are able to conduct activities that cause suffering to sojourners while still viewing themselves as moral human beings, by breaking down the decision-making process into a series of dichotomic categories, by defining Zionism as a context that justifies deportation, and by governing their emotions. I claim that in Israel, state bureaucrats view sojourners as unmanageable and incorrigible. Consequently, deportation becomes a logical course of action. Such an approach, which stresses the bureaucratic aspect of national projects, enables a better understanding of how the “State” is able to perform large-scale projects that cause suffering to individuals.


Author(s):  
Toyosi Olugbenga Samson Owolabi ◽  
Godspower Godwin Itemeh

The quests for sound organizational management and efficient corporate governance have received more impetus in today's business environment. This is because it has been observed especially among large scale enterprises and multinational companies of incidences of wastage of human and material resources, inefficiency and sluggishness in the corporate decision making process at huge cost to the company on one hand and to shareholders on the other. In contemporary corporate setting especially in situations where huge sums are budgeted for information and communication technologies, large scale organisations tend to have more specialisation, departmentalisation, centralization, and regulation than small scale enterprises. Particularly, companies with wide variety of products often give preference to divisionalisation purposely to ensure efficiency and effectiveness in the corporate decision-making process.


2020 ◽  
Author(s):  
Juan Acosta ◽  
Beatrice Cherrier

In this paper, we build on data on officials of the Federal Reserve System, oral history repositories, and hitherto under-researched archival sources to unpack the tortuous path toward crafting an institutional and intellectual space for postwar economic analysis within the Board of Governors. We show that growing attention to new macroeconomic research was a reaction to both mounting external criticisms against the Fed’s decision-making process, and to the spread of new macroeconomic theories and econometric techniques. We argue that the rise of the number of PhD economists working at the Fed is a symptom rather than a cause of this transformation. Key to our story are a handful of economists from the Board of Governors’ Division of Research and Statistics (DRS) who did not hold a PhD but envisioned their role as going beyond mere data accumulation and got involved in large-scale macroeconometric model building. We conclude that the divide between PhD and non-PhD economists may not be fully relevant to understand both the shift in the typeof economics practiced at the Fed and the uses of this knowledge in the decision making-process. Equally important was the rift between different styles of economicanalysis.


Author(s):  
Wimpi Sancaka

Human resources play an essential role in helping companies to achieve their vision and mission. As a large scale company, PT Petrokimia Gresik obviously needs to invest in Employees’ Performance Assessment System. It could act as a decision-making tool or a measure to evaluate and assess employees' performance at work so that theemployees’ promotion would be moreobjective and organized. Decision support system could be used to reduce the subjectivity in decision-making process. The decision support system that uses profile matching method or competency gap analysis was created based on the data which refers to the decree of the board of directors issued by PT Petrokimia Gresik. This system analyzes and assesses employee’s competencies by grouping and calculating core factors and secondary factors in each variable. The output of the calculation is a ranking of the candidates. By implementing decision support system which uses Profile Matching method, it assists company decision-making process in promotion decision based on employees’ competency scores more optimally.


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