• Journal of the Korean Data and Information Science Society
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• 제15권4호
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• pp.731-741
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• 2004

This paper is planned to use multi-proportions randomized response model for sensitive information on internet survey. This is an indirect response technique as a way of obtaining much more precise information. In this system we consider that respondents are generally reluctant to answer in a survey to get sensitive information targeting employees, customers, etc.

• 품질경영학회지
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• 제19권1호
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• pp.16-27
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• 1991

Propose three rank tests based on different kinds of ranking methods for comparing several treatments with a control in a randomized block experiment. Monte Carlo power simulation study is examined in some small sample sizes and configurations to recommend a better test for applications.

• 한국통계학회:학술대회논문집
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• 한국통계학회 2005년도 추계 학술발표회 논문집
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• pp.85-90
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• 2005

This paper proposes the calibration procedure for stratified Warner's randomized response model, which suggested by Kim and Warde (2004). It is shown that the proposed calibration estimator is more efficient than the Kim and Warde's model.

• Communications for Statistical Applications and Methods
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• 제15권4호
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• pp.597-603
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• 2008

In this paper, we propose the calibration procedure for the valiance reduction of the stratified Warner's randomized response estimators, which suggested by Hong et al. (1994) and Kim and Warde (2004), using auxiliary information at the population level. It is shown that the proposed calibration estimators are more efficient than the ordinary Warner's estimators.

• Journal of the Korean Statistical Society
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• 제14권1호
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• pp.48-55
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• 1985

In clinical trials subjects are avalible sequentially and must be assigned to treatments immediately. Completely randomized procedure for the allocation of treatments to each subject may result in severe imbalance among the number of subjects in treatment groups, especially for small experiments or interim analyses of large experiments. In this study, restricted randomization methods such as biased coin designs (Efron, 1971), permuted block design, and truncated binomial design are compared to teh completely randomized design in the presence of selection and/or accidential bias by Monte Carlo simulations.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2011년도 춘계학술대회
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• pp.487-493
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• 2011

The paper reviews three Split Plot Designs (SPDs) of fixed factors, and those are SPD (RCBD, RCBD), SPD (CRD, RCBD) and SBD (Split Block Design). RCBD (Randomized Complete Block Design) and CRD (Completely Randomized Design) are used to deploy whole plot and sub plot. The models explained in this study are derived from random, crossed and nested models.

• 한국정보보호학회:학술대회논문집
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• 한국정보보호학회 2003년도 동계학술대회
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• pp.185-189
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• 2003

최근 스마트카드에 대한 수요가 증가함에 따라 스마트카드에 대한 보안상의 문제가 대두되고 있다. 스마트카드의 안전성을 위협하는 공격 방법 중 전력공격은 가장 강력한 공격으로 많은 연구가 되고 있다. 본 논문에서는 전력분석 공격의 한 방법인 MESD 공격에 대해 알아보고 이에 대한 대응 방법으로 제안된 RSM 알고리듬에 대해 알아본다. 또한 이 알고리듬의 연산 속도 향상을 위해 folding 기법을 사용한 알고리듬에 대해서도 알아보고 MESD 공격에 안전한지를 실험을 통해 검증한다.

• 한국국방경영분석학회지
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• 제27권2호
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• pp.124-133
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• 2001

The purpose of this study is investigate the differences among parametric and nonparametric test statistics for the tree alternative hypothesis in the randomized block design. As the results, it was found that there was no large differences among parametric and nonparametric test statistics in power when the block sizes were larger, and Hollander's statistic had better power than other nonparametric test statistics. It is recommended that Hollander's test statistic is more useful method when we have no information about the distribution of population.

• Korean Journal of Radiology
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• 제25권2호
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• pp.123-125
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• 2024

• Korean Journal of Radiology
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• 제23권12호
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• pp.1119-1125
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• 2022