• 제목/요약/키워드: Assessing

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A study on Process Capabilit Index using Semi-Variance

  • DaeKyung Kim
    • Communications for Statistical Applications and Methods
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    • 제6권1호
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    • pp.77-88
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    • 1999
  • A new measure of the process capability index(PCI) $\textit{C}_{cpk}$ is proposed that takes into account the proximity to the target value as well as process mean and process variation when we assessing process performance. using the semivariance estimators proposed by Choobineh and Branting (1986) and Josephy and Aczel (1993) the estimator($\textit{C}_{cpk}$) of new index has been solved and the properties of these estimators have been examined through simulations. Also we compare the performance between $\textit{C}_{cpk}$ and $\textit{C}_{jpk}$ which is developed by Johnson kotz and Pearn(1992).

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Effects of Changing Weighing Factor in a Two Stage Shrinkage Testimator for the Mean of an Exponential Distributions

  • Myung-Sang Moon
    • Communications for Statistical Applications and Methods
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    • 제5권3호
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    • pp.895-904
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    • 1998
  • Two stage shrinkage testimator is a kind of adaptive estimators based on a test on an initial estimate of parameter. Since weighing factor plays an important roll in assessing the properties of testimator, its choice is extremely crucial in two stage testimation. Adke, Waikar and Schuurmann(1987) proposed a testimator for the mean of an exponential distribution defined with their own weighing factor. Two alternative testimators obtained using changed weighing factors are presented, and their Mean squared error(MSE) formulae are provided in this paper. Their properties are compared with those of existing one by means of MSE.

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Assessment and Interpretation of Bioequivalence for Two Drug Formulations using Crossover Design

  • Ko, Seoung-gon;Oh, Hyun-Sook
    • Communications for Statistical Applications and Methods
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    • 제6권2호
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    • pp.601-610
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    • 1999
  • Crossover design is officially except for special occasions recommended by KFDA and FDA for assessing Bioequivalence between two drugs one for reference and the other for innovator. Such design is regarded as a special case of latin square split-polt or repeated measurement design and its main difference with other designing methods is that each subject in an experiment is exposed two drugs in sequence. Therefore general statistical analysis is not suitable since the model for this experiment includes carryover effect in addition to period and sequence effect. in this paper analysis for crossover model with two drugs and its interpretation are mainly discussed and an example is given for illustration.

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"어머니의 양육행동 척도"개발에 관한 일 연구 (A Study on the Development of "Korean Maternal Behavior Inventory")

  • 박성연
    • 대한가정학회지
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    • 제27권4호
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    • pp.151-165
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    • 1989
  • The purpose of this study was to develop an instrument for assessing Korean mother's child rearing attitudes. The study attempted to explore dimensionality of maternal attitudes and formulated conceptual framwork. The items of maternal behaviour scale were tested on 300 mothers of 4th∼6th grade elementary school children living in urban areas. By the method of reliability analysis and factor analysis, 43 items were finally selected for the scale. The reliability of the new scale was ranged from .57 to .80. The construct validity of the scale was supported by the results of factor analysis.

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건설감리제도의 성과분석에 관한 연구(설문조사를 중심으로) (A Study on the Performance Analysis of Construction Supervision System)

  • 한재구;박환표;진경호;오은호
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2011년도 춘계 학술논문 발표대회 2부
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    • pp.137-138
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    • 2011
  • This paper aims to analyze the performance of Construction Supervision System that contributed to domestic construction projects in public area with respect to reduction of shoddy constructions and improvement of the quality of construction results. Thus research suggested qualitative and quantitative criteria for assessing outcomes and analyzed the performance of Construction Supervision System based on the result of survey questionnaires.

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정보화 투자효과분석 사례 및 자동화 소프트웨어 개발 (Economic Evaluation of Information Systems : Case and Software Development)

  • 이국희
    • 정보기술과데이타베이스저널
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    • 제8권2호
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    • pp.137-159
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    • 2001
  • This study provides a thorough methodology for IT Investment evaluation. A software tool to support the evaluation process was introduced along with a case study. The software supports the methodology that consists of 7 phases : Target analysis, ldentifying IT measures, Measuring IT impact, Assessing business value, Analyzing the decree of realization, Cost-benefit analysis, and Reporting. The case study showed that the software (CAFA) was a very useful tool supporting both decision-making and post-implementation reviews of IT investment.

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마이크로웨이브 이미징에서 위상오차 분산과 코릴레이션 계수와의 상호관계 (Interrelationship of phase-error variance and correlation coefficient in microwave imaging)

  • 강봉순;장훈기
    • 전자공학회논문지D
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    • 제34D권10호
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    • pp.1-6
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    • 1997
  • This paper presents the theoretical derivaion relating and image correlationcoeffcient capable of assessing image quality, with phase-error variance in antenna aperture domain. We show that when the phase-error variance of a range bin selected as an adaptive beamformer is known, the quality of the reconstructed image is predictable and moreover, the resultant correlation coeffcient is obviously greater than the derive dlower boudn. To support the derivation, real data are used for image formation where the dominant scatterer algorithm (DSA) is applied for phase compensations.

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GIS based Carrying Capacity Assessment for National Parks

  • Lee, Woo-Kyun;Son, Min-Ho;Kwak, Doo-Ahn
    • 한국지형공간정보학회:학술대회논문집
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    • 한국지형공간정보학회 2005년도 아시아 태평양 국제 GSIS 학술발표회
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    • pp.21-25
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    • 2005
  • A GIS application for assessment of carrying capacity for national parks was developed and presented in this study. Three criteria--ecological factors, facilities, and institutions--were employed as determining factors for assessing the carrying capacity. Using the GIS-based approach, the site-specific carrying capacity for the Chi-Ri National Park was assessed and a carrying capacity map was prepared. This carrying capacity map can be helpful in making policies for decentralizing visitors and keeping the park environmentally stable.

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A New Measure for Assessing the Public Health Response to a Middle East Respiratory Syndrome Coronavirus Outbreak

  • Cho, Sung-il
    • Journal of Preventive Medicine and Public Health
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    • 제48권6호
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    • pp.277-279
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    • 2015
  • Contact monitoring is an essential component of the public health response to a Middle East respiratory syndrome coronavirus outbreak, and is required for an effective quarantine to contain the epidemic. The timeliness of a quarantine is associated with its effectiveness. This paper provides a conceptual framework to describe the process of contact monitoring, and proposes a new measure called the "timely quarantined proportion" as a tool to assess the adequacy of a public health response.

Assessing Losers Consent in Mixed Systems: Public Perceptions of Taiwan’s 2008 Legislative Yuan Election

  • Rich, Timothy S.
    • Journal of Contemporary Eastern Asia
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    • 제15권1호
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    • pp.4-16
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    • 2016
  • A large literature identifies perceptual differences between citizens that support winning parties versus losing parties. These analyses fail to capture the complexity of mixed member legislative systems where one can be a winner or loser at both the national and district level. This paper proposes a two-level framework for the analysis of mixed system. An analysis of Taiwan’s first election under a mixed system provides evidence that both support for a national winner and district level winner produce boosts in positive perceptions of the electoral system. National success appears to be a larger motivator of perceptions.