• Proceedings of the Korean Society for Quality Management Conference
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• 2006.11a
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• pp.174-180
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• 2006

This study to find out key ingredients(KIs) of Six Sigma. Potential ingredients are selected from previous studies of success factors and ingredients of Six Sigma and TQM, and criteria of quality awards like MBNQA, EFQM, Deming and Korean National Quality Award(KNQA) are classified into 11 categories based on experts' opinion and affinity analysis. Irrelevant or ineffective potential ingredients are discarded by using factor analysis for the questionnaires answered by champions, MBBs and BBs of 90 Korean companies that have more than 3 years of experience in implementing Six Sigma. In addition, from the factor analysis, 3 factors are derived for each respectively except the managerial achievement category. Those 11 categories and 30 factors are defined as Six Sigma KIs.

• Structural Engineering and Mechanics
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• v.25 no.3
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• pp.331-345
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• 2007

Uncertainties enter a complex analysis from a variety of sources: variability, lack of data, human errors, model simplification and lack of understanding of the underlying physics. However, for many important engineering applications insufficient data are available to justify the choice of a particular probability density function (PDF). Sometimes the only data available are in the form of interval estimates which represent, often conflicting, expert opinion. In this paper we demonstrate that Bayesian estimation techniques can successfully be used in applications where only vague interval measurements are available. The proposed approach is intended to fit within a probabilistic framework, which is established and widely accepted. To circumvent the problem of selecting a specific PDF when only little or vague data are available, a hierarchical model of a continuous family of PDF's is used. The classical Bayesian estimation methods are expanded to make use of imprecise interval data. Each of the expert opinions (interval data) are interpreted as random interval samples of a parent PDF. Consequently, a partial conflict between experts is automatically accounted for through the likelihood function.

• Korean Management Science Review
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• v.16 no.1
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• pp.75-85
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• 1999

In recent, an unfaithful construction bring about many social problems. The bidding process considering bidding price firstly is one of the reasons raising an unfaithfull construction work. Thus, we should consider many other criteria including bidding price in the bidder selection process. This paper suggests an analytic hierarchy process(AHP) model for selecting the best bidder of a large construction project. A questionnaire was used to obtain domain experts' opinion about criteria to be considered in the bidding process. A hierarchical structure of the AHP model is formed using criteria obtained in the survey. The model consists of bidding price, construction capability, financial status, faith, and their 17 sub-attributes. The relative importance of bidders are judged by pairwise comparison or absolute measurement. An illustrative example is given to show the process selecting the best bidder using the suggested AHP model.

• Journal of Korean Society for Quality Management
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• v.23 no.2
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• pp.1-9
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• 1995

Two user groups, expert and non-expert, are sampled to measure the image quality of G3 facsimile. A ITU-TS tset chart No. 2 has been transmitted among some selected cities and evaluated by user groups. Their subjective evaluation to the image quality is quantified by Mean Opinion Score method. There is highly significant difference in the image quality between expert and non-expert. From modified logit model, it is concluded that there is no significance in two considered factors, the effects of the number of links and transmission time. The derived percent curves show that 80% of non-experts(90% of expert) is considering the image quality of G3 facsimile "fair, good, or excellent".

• Proceedings of the KIEE Conference
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• 1996.07c
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• pp.1769-1773
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• 1996

The remaining life of generator stator winding has been the controversial issue amomg many experts in this area. The report from Japan claims that they can predict the remaining life of generator winding, while the North American has the negative opinion about it. This study aimed at verifying the validity of both Japanese criteria and North American argument on evaluation of generator winding insulation. Non destructive and destructive tests were performed on two hydro-generators. The test results showed that the trend analysis of stator winding insulation was the better option.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.261-262
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• 2008

Failure Mode Effects and Criticality Analysis (FMECA) evaluates criticality and severity of each failure mode. Generally, those indices are determined subjectively by experts and operators. However, this process has no choice but to include uncertainty. In this paper, a method for eliciting expert opinions considering its uncertainty is proposed to evaluate the criticality and severity. In addition, a fuzzy expert system is constructed to determine the crisp value of risk level for each failure mode. The results are worth considering while deciding the proper policies for each component of the system.

• The Journal of the Korean life insurance medical association
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• v.26
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• pp.41-53
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• 2007

In the course of insurance claim administration, medical experts' opinions are called medical claim reviews. They are classified into two main categories: medical verification and counsel for claim staff. Medical verification compare between product coverage and the insured's physical condition. Medical counsel for claim staff is advice for claim staff when they have a question about medical knowledge to make a claim decision. A common example of medical verification is insurance coding of pituitary apoplexy. Some clinicians have insisted that the ICD coding of pituitary apoplexy is l63 of cerebral infarction, but the exclusion criteria of I code show that neoplasm is coded as C00 to D48. Thus, pituitary apoplexy must be coded as D33. An example of medical counsel for claim staff is interpretation of some medical conditions. It is divided into UCR(usual, customary, and reasonable) assessment, assessment of causality, and so on. Disability evaluation is another subject of medical counsel for claim staff. The final claim decision must be made by claim staff because only the claim staff have the authority of claim decision. Medical claims review is only an expert's opinion.

• Journal of the Korean Statistical Society
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• v.27 no.1
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• pp.25-55
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• 1998

Maximum likelihood estimates (MLEs) for recursive models of categorical variables are discussed under an EM framework. Since MLEs by EM often depend on the choice of the initial values for MLEs, we explore reasonable rules for selecting the initial values for EM. Simulation results strongly support the proposed rules.

• Convergence Security Journal
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• v.20 no.3
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• pp.125-132
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• 2020

Soldiers can petition. You can file an action within the military to take action, but you are not satisfied and file a petition outside. However, if you try to resolve the petition with public opinion in mind, there are also side effects of defrauding and losing trust in the military. Military petitions must be organized and operated on legal grounds and experts, and results must be transparent and fair. Institutional efforts are needed to resolve petitions so that external petitions are not easily used as a pathway for smartphones to use in the territory.

• Korean Journal of Human Ecology
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• v.19 no.6
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• pp.1115-1125
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• 2010

This study investigated how Korean food is perceived within a healthy diet and what kinds of eating habits Korean people have. A Focus Group Interview (FGI) was conducted with participants who were experts on diet. Data were categorized into five groups using content analysis. categories were as follows: 1) Korean food and health assessment, 2) opinion on Koreans' current eating habits, 3) characteristics of Korean food, 4) comparison of Korean food in the past and present, 5) a plan for healthy diet. Results showed that a healthy diet should not only include a lot of vegetables, simple and unprocessed food as well as less spicy food, but that it should also be well-balanced nutritionally.