• Communications for Statistical Applications and Methods
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• v.6 no.2
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• pp.533-542
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• 1999

Widespread of internet causes rapid changes in many areas of statistics such as statistical computation and education. In this paper the efficient methods for statistical software development on the internet environment are introduced. Also the developed examples about monte-carlo permutation tests for two-way contingency tables using Microsoft COM (Component Obejct Model) technology are presented.

• Communications for Statistical Applications and Methods
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• v.11 no.1
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• pp.13-20
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• 2004

A more general version of diffusivity based on total variation of density is defined and an information inequality for median-unbiased estimation is presented. The resulting information inequality can be interpreted as an analogue of the Bhattacharyya system of lower bounds for mean-unbiased estimation. A condition on which the information bound is achieved is also given.

• The Korean Journal of Applied Statistics
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• v.26 no.3
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• pp.421-429
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• 2013

Modern statistics is used in many fields; however many users face difficulties in understanding statistical concepts. On the other hand, elementary school curriculum covers stem and leaf plot, pie chart, charts for proportional data as well as descriptive statistics including the mean. We find that an "intuitive" statistical package focused on 5-8 graders for statistical education will help future statistics users understand statistical concepts at earlier stages of their lives.

• The Korean Journal of Applied Statistics
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• v.22 no.1
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• pp.197-204
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• 2009

In the model selection problem, the main objective is to choose the true model from a manageable set of candidate models. An information criterion gauges the validity of a statistical model and judges the balance between goodness-of-fit and parsimony; "how well observed values ran approximate to the true values" and "how much information can be explained by the lower dimensional model" In this study, we introduce some information criteria modified from the Akaike Information Criterion (AIC) and the Bayesian Information Criterion(BIC). The information criteria considered in this study are compared via simulation studies and real application.

• Communications for Statistical Applications and Methods
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• v.10 no.3
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• pp.741-747
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• 2003

There are many method to evaluate the economic value and non-economic value for information service. But we have a difficult problem to estimate the economic value of information objectively because we don't have a comparable value correspondent to the value of information service. Here, we proposed a method to evaluate for the value of information with the survey and discussed the model of the measure of non-economic value with weighted wages.

• Journal of Information Management
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• v.40 no.4
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• pp.93-108
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• 2009

In order to achieve the growth of traditional Chinese medicine, the chinese government has annually released "China Statistical Yearbook of Chinese Medicine" to the world since "State Administration of Traditional Chinese Medicine of the People's Republic of China" established in 1988. It is believed that the chinese government intends to secure the early dominance of the global medical market by systematic management of its own medicine infrastructures. Although the statistics of "China Statistical Yearbook of Chinese Medicine" weren't systematically organized at the beginning, it has becoming richer, more systematic, and more standardized in the data construction and system as time has passed. Furthermore, we can take a look at China's effort to take the initiative of oriental medicine by expanding investment in several core areas - medicine resources, operation of medical instruments, service, medicine education, medicine science research, and working expenses. This article will show how china has been trying to develop the chinese medicine, focusing on two parts. One is specific analysis of the book "China Statistical Yearbook of Chinese Medicine". It is divided into analysis of its construction system, the degree of data construction, and its statistical system. The other is analysis of annual changes in areas of medicine resources, operation of medical instruments, service, medicine education, medicine science research, and working expenses.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.820-822
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• 2005

학습자들의 효과적인 학습을 위하여 구성주의 학습이론을 바탕으로 웹 기반 코스웨어를 설계하였다. 기존의 학습과정인 교과서, 멀티미어 타이틀, 웹을 기반으로 한 코스웨어 등이 개발되어 교육현장에서 적용되면서 학습자에게 학습 흥미유발 및 교육성취도 등에서 효과가 있는 것으로 많은 연구자료에서 검증되었다. 하지만 기존의 코스웨어들은 하나의 과정으로 순차적이며 단계적인 학습이 이루어지는 단점이 있어 본 논문에서는 이러한 점을 보완하였다. 학습자들이 각자의 경험과 지식에 바탕을 두어 여러 유형의 학습안중에서 각자에 맞는 학습안을 선택하여 학습하도록 하였다. 즉, 기존의 웹 기반 코스웨어의 장점을 살리면서 좀더 학습자에 맞는 웹 기반 코스웨어를 개발하여 적용하였다. 이러한 결과 구성주의 학습이론을 적용한 코스웨어가 학습자 중심의 능동적인 학습을 통해 학습 성취도를 높여주는 것으로 나타났다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.376-378
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• 2005

사용자의 요구사항을 실시간으로 반영하고 연구비 예산정책과 관련된 의사결정 과정을 최대한 지원할수 있는 시스템이 절대적으로 필요하게 되었다. 이러한 현실적인 상황을 반영하여 연구비의 예산편성 및 예산집행의 효율성을 높이고자 J2ME 기반 모바일 연구비 통합관리 시스템을 개발하였다. J2ME 기반 모바일 연구비 통합관리 시스템은 설계단계에서 정보검색 에이전트와 정보통합 에이전트를 이용하였다. 이러한 결과 연구비 계획단계에서부터 예산편성 및 예산집행, 예산정산까지 독립적으로 관리하고 있는 운영 시스템의 데이터베이스들을 최적화하였다. 또한 각 시스템간의 이질성을 최소화하여 연구비 집행업무의 투명성을 향상시키고 상호간의 유기적인 정보교환과 조직의 계획수립 및 분석적 업무를 효과적으로 지원할 수 있었다. 이로 인해 최종 사용자가 원하는 분석정보에 신속하게 접근하여 단편적인 관점보다는 종합적인 관점에서 다양한 자료를 제공받을 수 있었다.

• Communications for Statistical Applications and Methods
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• v.13 no.2
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• pp.441-448
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• 2006

If the completely observed data are assumed to have full information, the censoring causes the loss of information. Previous studies have introduced the indices of information loss via measuring relative changes between the data with censoring and without censoring. In this paper, the comparisons are made for the information loss between type I and type II censoring in two sample problems.

• Journal of the Korean Society for information Management
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• v.24 no.2
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• pp.161-179
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• 2007

As increasingly diverse kinds of information materials are available on the Internet, it becomes a challenge to define an adequate level of metadata provision for each different type of material in the context of digital libraries. This study explores issues of metadata provision for a particular type of material, statistical tables. Statistical data always involves numbers and numeric values which should be interpreted with an understanding of underlying concepts and constructs. Because of the unique data characteristics, metadata in the statistical domain is essential not only for finding and discovering relevant data, but also for understanding and using the data found. However, in statistical metadata research, more emphasis has been put on the question of what metadata is necessary for processing the data and less on what metadata should be presented to users. In this study, a case study was conducted to gauge the status of metadata provision for statistical tables on the Internet. The websites of two federal statistical agencies in the United States were selected and a content analysis method was used for that purpose. The result showing insufficient and inconsistent provision of metadata demonstrate the need for more discussions on statistical metadata from the ordinary web users' perspective.