• 시스템엔지니어링학술지
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• 제3권2호
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• pp.3-8
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• 2007

Technical Measures includes Measures of Effectiveness(MOEs), Key Performance Parameters(KPPs), Measures of Performance(MOPs) and/or Technical Performance Measures(TPMs). Technical measurement is the set of measurement activities used to provide supplier and/ or acquirer insight into progress in the definition and development of the technical solution, ongoing assessment of the associated risks and issues. This paper describes how technical measures can be applied, using the measurement process described in the previous study and shows the relationship between the various types of technical measures.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2000년도 봄 학술발표회논문집
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• pp.207-214
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• 2000

In this paper, a study of the effenctiveness and convergency of five damage measures for structural damage detection of 2-dimensional truss structure using the extended Kalman filtering algorithm is presented. These damage measures are associated with the change in mode shape and displacement due to structural damage. Damage measures contain the change in natural frequency, mode shape, curvature of mode shape, displacement of static force and curvature of displacement of static force. The effectiveness and convergency of these damage measures by using extended Kalman filtering algorithm are demonstrated with the numerical examples.

• 한국융합학회논문지
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• 제5권4호
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• pp.27-32
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• 2014

정보보안 정책은 산업융합의 흐름에 맞추어 융합보안시대가 가속화되어가고 있는 요즈음 조직의 보안을 실현하고 지속하는데 필요한 가장 중요한 도구 중 하나이다. 하지만, 지금까지도 정보보안 정책의 효과성을 측정하는 연구는 많이 부재한 실정이다. 본 연구의 목적은 정보보안 정책의 효과성을 측정할 수 있는 측정지표를 개발하는 것이다. 이를 위해 데이터 품질, 정보 품질에 관한 문헌을 기반으로 품질의 기반 요인들을 살펴보았다. 문헌 검토결과 내용 관점에서 정확성, 완전성, 해석의 용이성, 관련성 등을 그리고 형식 관점에서 이해의 용이성, 표현의 간결성, 그리고 적정성 등이 정보보안 정책의 품질을 측정하기 위해 중요한 구성요소라 판단된다.

• 환경영향평가
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• 제31권6호
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• pp.359-368
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• 2022

개발사업의 부정적인 영향을 감소시킬 수 있는 저감방안의 실효성을 높이기 위해서는 이행률을 높이는 것이 필수적이다. 환경영향평가에서 자연생태환경 동물상 분야의 경우 저감방안에 대한 실효성 문제가 꾸준히 제기되고 있음에도 불구하고 현재 진행되고 있는 개발사업의 이행평가 연구는 미흡한 실정이다. 따라서 본 연구는 환경영향평가사업의 대표적인 유형인 도시 및 도로의 개발사업을 대상으로 자연생태환경 동물상 분야의 저감방안 이행률을 평가하고, 각 저감방안별 이행률 차이가 발생하는 원인에 대해 파악하고자 하였다. 도시 및 도로개발사업 저감방안 이행률은 각 56.0%와 64.4%로 낮게 나타났다. 사후 모니터링은 모든 사업유형에서 이행률이 가장 높게 나타났으나, 서식지 조성과 사고예방 저감방안은 낮게 나타났다. 또한, 저감방안 이행률은 보고서 내 기재된 저감방안 내용이 구체적일 때 높음을 알 수 있었다. 본 연구를 통해 환경영향평가 자연생태환경 동물상 분야 저감방안의 이행률을 높이기 위해서는 평가서 작성 시 대상지의 환경적, 지리적 특성을 구체적으로 반영할 필요가 있으며, 실제로 이행할 수 있도록 상세하게 서술할 필요가 있음을 알 수 있었다. 더 나아가 자연환경에 부정적인 영향을 감소시키기 위해 도입된 환경영향평가 제도의 실효성을 증진하기 위한 기초 근거로서 본 연구가 활용될 수 있을 것으로 판단된다.

• 성인간호학회지
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• 제16권3호
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• pp.409-420
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• 2004

Purpose: This study aims to analyze the effectiveness of Tai chi exercise for improving balance and its tendency and helps to identify directions for future research. Method: 19 articles from Medline search of foreign journals(1981-2003) and 5 from Korean nursing journals (1981-2003) were surveyed. The contents analyses were focused on outcome measures and relative factors regarding balance. Result: Variable measures for balance were used in Tai Chi studies relating to balance. They included the functional measures such as 14 single-leg stance, 7 walking in physiological measures and 7 laboratory-based balance measures were done with platform stability test. The measure of effective Tai Chi exercise depended on the health status of subjects and the methods. Health status of subjects were only on physically inactive older adults in 17 articles and arthritis patients in 7 articles in the Tai Chi study. The significant effects of Tai Chi exercise on balance was revealed after 10weeks duration. Conclusion: Considering the results, Tai Chi exercise is more effective than any other studies for walking balance. But the reports on the outcome are inconsistent with wide variations in the choice of balance measures. It is suggested that future studies analyze systemic change through meta analysis and have a wide variety of subjects who need postural control and balance control. The methods of measures should be distinct from the balance state of subjects for the effectiveness of Tai chi exercise.

• 통상정보연구
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• 제9권2호
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• pp.65-86
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• 2007

This paper reviews the properties and application methods of widely used types of risk measures, identifies the rationale and business-side effects of hedging, derives the theoretical formula of optimal hedging ratio, and analyzes the various functional aspects of VaR(Value-at-risk) as a risk measure and a hedging tool. Especially this paper focuses on the characteristics of VaR compared with other risk measures in terms of their own principal determinants and identifies its stronger aspects in the dimension of hedging strategy tools. As well, this paper provides the detailed processes deriving the optimal hedge ratios based on the distributional parameters and risk factors. In addition, this paper presents the detailed and substantial processes of estimating the minimum variance hedge ratio and minimum-VaR hedge ratio using the actual data and shows that the minimum variance hedge ratio proves helpful for many cases although it is not appropriate for the non-linear portfolio including the option contracts. We demonstrate the trade-off relationship between the minimum variance hedge strategy and the minimum-VaR hedge strategy in their hedging costs and performances through calculation of the respective VaRs and variances of unhedged and hedged portfolios and the optimal hedge ratio and hedging effectiveness values for the given long position in US Dollar with the short position in Euro.

• 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.

• 한국비블리아학회지
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• 제14권1호
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• pp.79-90
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• 2003

• Journal of applied mathematics & informatics
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• 제39권5_6호
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• pp.895-918
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• 2021

Human African Trypanosomiasis (HAT) also known as sleeping sickness, is a neglected tropical vector borne disease caused by trypanosome protozoa transmitted by bites of infected tsetse fly. The basic reproduction number, R₀ derived using the next generation matrix method which shows that the disease persists in the population if the value of R₀ > 1. The numerical simulations of optimal control model carried out to determine the control strategy that can combat HAT under the minimum cost. The results indicate that, the use of both education campaign, treatment and insecticides are more efficient and effective to eliminate HAT in African community but too costly. Furthermore, the cost-effectiveness of the control measures (education campaign, treatment and insecticides) were determined using incremental cost-effectiveness ratio (ICER) approach and the results show that, the use of education and treatment of infected people as the best cost effective strategy compared to other strategies.

• 경영과학
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• 제28권1호
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• pp.61-74
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• 2011

Not only the preference data but also the similarity data can be used for developing effective marketing strategies. Hahn et al.[10] proposes a methodology of representing a brand(focal brand)'s competitors in a single map called the Preference-Similarity Map, according to their relative preference to and similarity with the focal brand. They also proposes a way to derive the relative preference and similarity values from the survey collecting the choice data from differing choice sets. This study identifies the limitations of the preference and similarity measures proposed by Hahn et al.[10] and shows how these measures can be revised. This study also proposes how to implement the revised measures and analyze brands' positioning strategies. Based on the results of the previous studies on the effect of inter brand similarity on brand evaluations, this study assumes that it is important to analyze how much a specific brand is preferred to its close competitors when evaluating the effectiveness of the brand's positioning in the market. This study applies the proposed measures to the data used in Hahn et al.[10] and also show how the proposed measures are related to the parameters of the choice model proposed by Batsell and Polking[1].