• Journal of the Korean Data and Information Science Society
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• 제23권1호
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• pp.63-70
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• 2012

지역통계는 특성화통계를 중심으로 그 수요가 증가하고 있음에도 불구하고 통계작성비용 증가 등의 이유로 인하여 조사통계로 모든 요구를 충족시키기에는 한계가 있다. 이에 그 대안으로 고려되는 것이 행정통계이다. 본 연구에서는 전라북도 행정통계 자료 가운데 지역정책 수립 및 특성화에 기여하는 대표통계를 선정하고 이를 체계적으로 관리함으로써 질적 향상을 통한 신뢰성 확보를 이룰 수 있는 방안에 대해서 논하였다. 그 결과 45개 항목을 전라북도 대표통계로 최종 선정하였다. 본 연구에서 대표통계의 선정에 대한 필요성을 제기하고 구체적인 선정절차를 밝힌 것은, 본 연구가 지방자치단체에서 생산되는 행정통계의 체계적인 관리와 효율적인 활용에 도움을 줄 수 있는 계기가 되기를 기대 해서이다.

• 대한인간공학회지
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• 제32권3호
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• pp.237-243
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• 2013

Objective: The present study developed an estimation method of boundary zone representative humanoids(hereafter, EBZ method) using descriptive statistics on the design target population. Background: The boundary zone method(hereafter, BZ method) generates representative humanoids at a boundary zone that statistically accommodates a designated percent of the design target population; however, the BZ method has a practical limitation because it requires a large scale anthropometric database on the design target population. Method: The EBZ method developed in the present study consisted of 3 steps. In the first step, the boundary zone of accommodating a designated percent(e.g., 90%) is formed under the assumption of normal distributions for anthropometric sizes. In the second step, cases that fall within the boundary zone are estimated using descriptive statistics(mean, standard deviation, and covariance) on the design target population. In the last step, K-mean cluster analysis is conducted for the cases, and representative humanoids are selected from each of clusters. Results: Evaluation results showed that mean accommodation percent of the EBZ method was 90.9%(range: 90.8~91.1%) which is similar to the target percent(90%). In addition, standard deviation of accommodation percent for 100 repetitions was 0.1%. Lastly, the number of representative humanoids generated by the EBZ method(n = 20) was similar to the BZ method(n = 16). Conclusion: The EBZ method can generate representative humanoids which accommodate a designated percent of the design target population using descriptive statistics. Application: The EBZ method can be utilized in the generation of humanoids for ergonomic design and evaluation of products when the large scale anthropometric database on the design target population is not existed.

• 응용통계연구
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• 제28권3호
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• pp.417-427
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• 2015

표본의 대표성을 측정하기 위한 척도로 응답률이 사용된다. 즉 높은 응답률일수록 표본의 대표성을 더 잘 나타낸다고 할 수 있다. 그러나 높은 응답률이라 할지라도 무응답이 존재하는 것이므로 표본의 대표성을 설명하기에는 한계가 있는 경우가 발생한다. 그래서 Schouten 등 (2009)에서는 R-indicator라는 새로운 척도를 제시하여 표본의 대표성을 더 설명할 수 있게 하였다. 본 논문에서는 R-indicator도 표본에 의해 추정되어야 한다는 것에 착안하여 그것에 관한 새로운 추정량을 제시한다. 또한 여러 모의실험하에 R-indicator의 대표성으로써의 설명력과 제안된 추정량의 편향과 효율을 기존의 추정량과 비교분석하며 실제자료에도 제안한 추정량을 적용하여 표본의 대표성을 설명한다.

• 응용통계연구
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• 제18권1호
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• pp.129-135
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• 2005

일변량 자료의 경우 대표관찰치는 사분위수 등에 기초하여 자료의 분포와 변이를 함축적으로 표현하기 위한 목적으로 사용되는 소수 개의 관찰치이다. Jones와 Rice(1992)는 다변량 자료에 대한 대표관찰치를 선택하기 위해 주성분분석에 근거한 방법을 제시한 바 있다. 이 연구에서는 주성분의 자기일치성을 이용하여 대표관찰치를 선택하고, 이를 표현하는 방안을 고찰한다. 기존의 방법에 의한 대표관찰치가 자료의 표본변이에 민감한 한편, 여기에서 제안되는 방법의 결과는 자기일치성을 가진다.

• 한국비블리아학회지
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• 제34권2호
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• pp.251-274
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• 2023

본 연구는 광역대표도서관 사서들의 감정노동과 전문직 삶의 질(ProQOL)에 미치는 영향관계에서 긍정심리자본의 매개효과를 알아보았다. 2023년 2월 13일부터 2023년 2월 24일까지 전국 17개 광역대표도서관에서 근무하고 있는 사서 159명을 대상으로 설문지를 통하여 일반적 특징, 감정노동, 전문직 삶의 질, 긍정심리자본을 조사하였다. 통계처리는 SPSS Statistics 24.0, Amos 25.0을 이용하여 빈도 분석, 기술통계 분석, 확인적 요인분석, 신뢰도 분석, 상관관계 분석, 측정모형 분석을 실시하였다. 또한 부트스트랩(Bootstrapping) 분석 방법을 사용하여 광역대표도서관 사서의 감정노동과 전문직 삶의 질 관계에서 긍정심리자본의 매개효과를 분석하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 광역대표도서관 사서들의 감정노동, 전문직 삶의 질, 긍정심리자본 간에는 모두 유의미한 영향이 있는 것으로 나타났다. 둘째, 광역대표도서관 사서들의 감정노동과 전문직 삶의 질 관계에서 긍정심리자본의 간접효과는 통계적으로 유의한 것으로 확인되었다. 즉, 감정노동이 전문직 삶의 질에 직접적인 영향을 미치는 것으로 보아 부분 매개효과가 있다고 볼 수 있다. 따라서 향후 연구에서는 사서들의 감정노동을 감소시키고 긍정심리자본을 강화하여 전문직으로서의 삶의 질을 높여줄 수 있는 프로그램 개발 연구를 제언한다.

• 한국수학교육학회지시리즈A:수학교육
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• 제50권4호
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• pp.489-505
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• 2011

This study is an analysis on the focus of textbooks regarding the statistical chapters of "measures of representative(central tendency) and of the spread". Applying the summary-concept criteria of Juhyeon Nam(2007), 4 kinds of aspect of the chapter; (1) definition and its teleological validity of the measures of representative, (2) definition and practical value of the measures of spread (3) distributional form on the measures of representative and of spread (4) location and scale preservation or invariance of the measures of representative and of spread were observed. On the measures of representative, some definitions were insufficient to check the teleological validity of the measure. Most definitions of the measure of spread were based on the practical view points but no preparation for the future statistical inferences were found even by implication. Some books mention about the measures of representative and of spread for distributions, but we could not find any comments on the correspondence between the sample mean and the expectation of a distribution or population mean. However it is stimulant that some books check the validity of corresponding measures with the location and scale preservation or invariant property, that were not found in the previous curriculum.

• 한국환경과학회지
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• 제18권12호
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• pp.1417-1426
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• 2009

As the damages due to natural disasters continue to increase, a growing interest is being witnessed in such studies that focus on preventive measures to reduce damages rather than on their recovery. As such, the U.S. has been actively conducting projects to develop new models that can forecast potential damages due to natural disasters and widely employing them in actual cases. With no specific models developed in Korea yet, this study aimed to introduce an overseas typhoon model as part of the advanced efforts and apply it the actual cases occurring across the nation. This model estimates wind loads by measuring the impact of a strong wind upon buildings, and measurements require a number of parameters. Those parameters should include the types and dimensions of buildings and the type of the roofs. As for the FPHLM(Florida Public Hurricane Loss Model), a precedent model for our study, we were able to take advantage of number of the statistics and detailed categorizations on the residential buildings in the U.S., which enabled us to select the representative building types and produce their wind loads. With no sufficient relevant statistics available for the nation, however, we may not be able to readily measure the wind loads on the nation's residential buildings. Therefore, this study tried to choose the representative types, heights and dimensions of the buildings for the measurement of wind loads. We consequently came up with a representative house having an area between 62.81 and $95.56m^2$, either a flat roof or hip roof, a height of 2.6 m, an side ratio of 1.5, and the width and length of the mean $85m^2$ sized house being 11,300 mm and 7,530 mm, respectively.

• 한국통신학회논문지
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• 제24권8B호
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• pp.1438-1443
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• 1999

In this paper, we propose detection methods for gradual scene changes such as dissolve, pan, and zoom. The proposal method to detect a dissolve region uses scene features based on spatial statistics of the image. The spatial statistics to define shot boundaries are derived from squared means within each local area. We also propose a method of the camera motion detection using four representative motion vectors in the background. Representative motion vectors are derived from macroblock motion vectors which are directly extracted from MPEG streams. To reduce the implementation time, we use DC sequences rather than fully decoded MPEG video. In addition, to detect the gradual scene change region precisely, we use all types of the MPEG frames(I, P, B frame). Simulation results show that the proposed detection methods perform better than existing methods.

• Journal of the Korean Data and Information Science Society
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• 제16권4호
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• pp.759-768
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• 2005

K-means clustering has been widely used in many applications, such that pattern analysis, data analysis, market research and so on. It can identify dense and sparse regions among data attributes or object attributes. But k-means algorithm requires many hours to get k clusters, because it is more primitive and explorative. In this paper we propose a new method of k-means clustering using the grid-based representative value(arithmetic and trimmed mean) for sample. It is more fast than any traditional clustering method and maintains its accuracy.

• Journal of Sport and Applied Science
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• 제5권1호
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• pp.1-9
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• 2021

Purpose: In Seongnam City, a number of festivals are held in various areas, led by the city and private organizations. The necessity of developing a representative festival of Seongnam City, which can enhance the brand value of Seongnam, a cultural city, and promote a sense of local community and economic effects, is emerging. The purpose of this study is to analyze festival-related ordinances of Gyeonggi-do local governments, and to derive implications necessary for the development of festival support ordinances representing Seongnam City. Research design, data, and methodology: This study used the database of National Legal Information Center of the Ministry of Legislation and the autonomous legal information system to thoroughly investigate the ordinances related to festival support of basic local governments in Gyeonggi-do and the whole country. To do this, descriptive statistics analysis was conducted. Results: As a result of the study, it was found that 168 organizations (68.6%) of 245 local governments nationwide have adopted the festival support ordinance, and there are a total of 231 ordinances. In the case of basic organizations, out of 228 basic organizations, 151 organizations, including Seongnam City, adopted the ordinance on festival support, showing an adoption rate of about 66%. As a result of analyzing the basic organizations that enacted representative festival related ordinances among Gyeonggi-do basic organizations, 9 out of 28 cities adopted 16 representative festival ordinances, based on the legal and institutional basis for supporting representative festivals. Conclusions: In the case of Seongnam City, it is believed that in order to develop a representative festival, an ordinance to support the representative festival must be established. Considerations regarding the composition of the ordinance for the representative festival were discussed.