• 디지털융복합연구
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• 제12권1호
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• pp.209-219
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• 2014

본 연구에서는 설문지와 현장 인터뷰를 통해 실무적으로 경영진의 PMS의 이용 형태, 성과평가시 지표의 활용, 성과평가시 지표의 중요성 정도로 PMS의 특성에 대해 실무적으로 살펴보았다. 본 연구의 결과는 다음과 같다. 첫째, 기업은 저마다의 기업환경에서 성과향상을 위하여 전략을 성과평가지표에 반영하고 있으나 재무지표를 많이 이용하고 있었다. 둘째, 성과평가시 비재무지표의 이용과 중요성 정도에는 차이가 나타났다. 따라서 다양한 성과측정지표를 개발하고 비재무지표의 이용을 증가할 필요성이 있다. 셋째, 기업은 조직구성원들의 인식과 행동 변화를 유도하여 조직성과를 개선시키기 위해 PMS의 구축과 활용에 관심을 두어야 할 것이다.

• 패션비즈니스
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• 제19권6호
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• pp.127-138
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• 2015

Due to the virtual nature of online businesses, online apparel stores need to enhance the consumer experience by utilizing store design attributes to provide their customers relevant and sufficient information. Since online apparel stores mainly communicate with their customers virtually and digitally, it is important to understand how consumers perceive and react to different design attributes commonly found on apparel stores' online websites. The purpose of this paper is to examine the importance of design attributes commonly found on online apparel stores' websites using three different importance measurements. The design attributes examined in this study include enlarged pictures, product detail pictures, product reviews by other buyers, coordinating items, and size measurement charts. The three different measurements used in this study include two direct measures and one indirect measure using conjoint analysis. Across the three different measures, both the men and women indicated that enlarged pictures represent the most important design attribute when they purchase clothes online followed by size measurement charts and they considered the availability of coordinating items the least important design attribute.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제6권2호
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• pp.100-104
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• 2006

Fuzzy techniques can be applied in many domains of computer vision community. The definition of an adequate similarity measure for measuring the similarity between fuzzy sets is of great importance in the field of image processing, image retrieval and pattern recognition. This paper proposes a new class of the similarity measures. The properties, sensitivity and effectiveness of the proposed measures are investigated and tested on real data. Experimental results show that these similarity measures can provide a useful way for measuring the similarity between fuzzy sets.

• Nuclear Engineering and Technology
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• 제33권3호
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• pp.270-282
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• 2001

A simple measure of uncertainty importance based on normalized metric distance to quantify the entire change of cumulative distribution functions (CDFs) has been developed for use in probability safety assessments (PSAs). The metric distance measure developed in this study reflects the relative impact of distributional changes of inputs on the change of an output distribution, white most of the existing uncertainty importance measures reflect the magnitude of relative contribution of input uncertainties to the output uncertainty. Normalization is made to make the metric distance measure a dimensionless quantity. The present measure has been evaluated analytically for various analytical distributions to examine its characteristics. To illustrate the applicability and strength of the present measure, two examples are provided. The first example is an application of the present measure to a typical problem of a system fault tree analysis and the second one is for a hypothetical non-linear model. Comparisons of the present result with those obtained by existing uncertainty importance measures show that the metric distance measure is a useful tool to express the measure of uncertainty importance in terms of the relative impact of distributional changes of inputs on the change of an output distribution.

• Communications for Statistical Applications and Methods
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• 제16권6호
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• pp.937-943
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• 2009

가변용량 네트워크에서의 각 링크는 서로 독립이며 용량한계가 설정되어 있다. 각 링크는 각동하거나 작동불능의 두 상태로 구별되며 작동불능 상태의 링크는 유량을 통과시킬 수 없다. 주어진 네트워크는 미리 설정된 기정용량이상의 최대 전송용량이 가능할 때 작동된다고 한다. 본 논문에서는 가변용량 네트워크에서 기정용량이 주어졌을 때의 각 링크의 용량에 관한 구조적 중요도와 신뢰성 중요도를 정의하고, 네트워크 성능지수에 관련한 링크 중요도 척도를 제시한다. 또한 다양한 구조의 네트워크에서의 수치예제를 통하여 제시된 척도를 비교분석한다.

• 대한안전경영과학회지
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• 제13권3호
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• pp.45-53
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• 2011

The research proposes seven elimination rules of redundant gates and blocks in Fault Tree Analysis (FTA) and Reliability Block Diagram (RBD). The computational complexity of cut sets and path sets is NP-hard. In order to reduce the complexity of Minimal Cut Set (MCS) and Minimal Path Set (MPS), the paper classifies generation algorithms. Moreover, the study develops six implementation steps which reflect structural importance (SI) and reliability importance (RI) from Reliability Centered Maintenance (RCM) that a priority of using the functional logic among components is to reduce (improve) the system unavailability (or availability). The proposed steps include efficient generation of state structure function by Rare Event Enumeration (REA). Effective use of importance measures, such as SI and ill measures, is presented based on the number and the size of MCS and MPS which is generated from the reference[5] of this paper. In addition, numerical examples are presented for practitioners to obtain the comprehensive understanding of six steps that is proposed in this research.

• 품질경영학회지
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• 제49권1호
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• pp.61-79
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• 2021

Purpose: The purpose of this study is to study the relative weights of Quality Scorecard (QSC) which was developed for a new quality concept, called Open Quality, in the era of Industry 4.0. Open Quality aims to ensure quality responsibility by accurately measuring the quality level and sharing the quality data with stakeholders. Methods: To analyze the importance of QSC, a survey study was conducted based on 10 types of industry. The relative weights of QSC measures are investigated by both the industry types and the organizational life cycle. Further, the relative importance of QSC was analyzed according to the organization's lifecycle. By dividing the aspects with respect to the result data, application method for QSC is further provided. Results: The result indicates that there are significant differences among Korean companies in terms of the level of Industry revolution stages. Among ten industry types, manufacturing and finance sectors show the highest importance of QSC. QSC measures are also considered more importance in growth stage of the maturity cycle than generator and decline stages. Conclusion: When QSC is adopted for Open Quality, its relative weights must be considered to cope with the unique characteristics of industrial types. Besides, QSC's contribution may vary according to the level of maturity of the target company.

• Earthquakes and Structures
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• 제22권2호
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• pp.157-168
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• 2022

A moment-independent importance measure analysis approach was introduced to quantify the effects of structural uncertainty parameters on probabilistic seismic demands of simply supported girder bridges. Based on the probability distributions of main uncertainty parameters in bridges, conditional and unconditional bridge samples were constructed with Monte-Carlo sampling and analyzed in the OpenSees platform with a series of real seismic ground motion records. Conditional and unconditional probability density functions were developed using kernel density estimation with the results of nonlinear time history analysis of the bridge samples. Moment-independent importance measures of these uncertainty parameters were derived by numerical integrations with the conditional and unconditional probability density functions, and the uncertainty parameters were ranked in descending order of their importance. Different from Tornado diagram approach, the impacts of uncertainty parameters on the whole probability distributions of bridge seismic demands and the interactions of uncertainty parameters were considered simultaneously in the importance measure analysis approach. Results show that the interaction of uncertainty parameters had significant impacts on the seismic demand of components, and in some cases, it changed the most significant parameters for piers, bearings and abutments.

• Communications for Statistical Applications and Methods
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• 제16권1호
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• pp.185-193
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• 2009

Machine learning methods such as support vector machines and random forests yield nonparametric prediction functions of the form y = $f(x_1,{\ldots},x_p)$. As a sequel to the previous article (Huh and Lee, 2008) for visualizing nonparametric functions, I propose more sensible graphs for visualizing y = $f(x_1,{\ldots},x_p)$ herein which has two clear advantages over the previous simple graphs. New graphs will show a small number of prototype curves of $f(x_1,{\ldots},x_{j-1},x_j,x_{j+1}{\ldots},x_p)$, revealing statistically plausible portion over the interval of $x_j$ which changes with ($x_1,{\ldots},x_{j-1},x_{j+1},{\ldots},x_p$). To complement the visual display, matching importance measures for each of p predictor variables are produced. The proposed graphs and importance measures are validated in simulated settings and demonstrated for an environmental study.

• 토지주택연구
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• 제14권2호
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• pp.51-71
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• 2023

본 연구에서는 평택시가 추진하고 있는 안정지구와 신장지구의 일반근린형 도시재생사업을 중심으로 파악된 문제점을 토대로 도시재생사업 활성화를 위한 개선방안의 중요도 요인을 도출하였다. 상가 주인 및 종업원과 거주 주민을 대상으로 한 1차 설문조사의 분석결과 도시재생사업의 인지도는 높은 편이며 도시재생사업의 필요성도 매우 높게 나타났다. 반면, 사회적 요인·경제적 요인·문화적 요인 3개 모두에서 전체적으로 낮은 만족도를 보이고 있다. 개선방안을 위한 2차 전문가 설문과 AHP분석에 따르면, 행정전문가와 실무전문가의 중요도 선택에서는 다소 차이가 나타났다. 행정전문가 중요도 분석으로 네트워크형 지역거버넌스 구축 중요도는 1순위로 나타났다. 미군 관련 행사 주관 및 장기적 프리마켓운영 중요도는 2순위, 주한미군과 지역사회 간 교류협력 확대 중요도는 3순위로 나타났다. 실무전문가 중요도 분석으로 미군 관련 행사 주관 및 장기적 프리마켓운영 중요도는 1순위로 나타났고, 미군관련축제 행사지원 및 지역 자연경관자원 개발 중요도는 2순위, 상생협력상가 조성 및 공공재원지원방안 중요도는 3순위로 나타났다. 본 연구에서는 일반근린형 도시재생사업 활성화를 위해 미군과 지역주민 수요증대를 위한 상업시설의 적극적인 유치를 하고 지역관광과 연계한 프로그램과 미군관련 행사주관 및 장기적으로 프리마켓운영이 필요함을 시사한다. 또한 지역거버넌스 협력이 필요하다고 할 수 있다.