진정한 연극인 김의경

구자흥 한국연극평론가협회 2016 연극평론 Vol.81 No.-

한국의 인구곡선 추정에 관한 연구

구자흥 한국통계학회 1994 응용통계연구 Vol.7 No.2

본 연구의 목적은 한국인구의 연도별 추정과 그 장래인구의 예측을 위한 단순 Logistic Curve의 모수(母數)들을 추정하는데 있다. 즉 1949년부터 1990년에 이르는 9회에 걸친 인구 Census 자료를 토대로 하고, 3-군법(3-群法)을 적용하여 모수들을 추정하므로서 연도별 총인구들의 곡선추계를 위한 Logistic Curve를 얻었다. 아울러 이 곡선에 의하여 1950년부터 1990년까지의 Census와 Census 사이의 총인구를 연도별로 추정하였으며, 다른 한편 1991년부터 2010년에 이르기까지 장래인구를 예측하였다. 뿐만 아니라 최근 한국인구 성장의 상한점근치(Upper Asymptote)로 58,616천명을 제시할 수 있었다. The purpose of this research is to obtain a Simple Logistic Curve for the curve fitting of Korean total Population. Based on the population census data from 1949 to 1990, the parameters are estimated by 3-group method. As the results, intercensal populations of Korea from 1950 to 190 are estimated, and Korean total populations from 1991 to 2010 A.D. are projected. And we also can suggest the upper asymptote 58, 616 thousands of Korean total population.

한국인의 생명 표에 관한 해석적 연구 -특히 간이생명표 작성을 중심으로-

구자흥 한국통계학회 1996 응용통계연구 Vol.9 No.1

이 논문에서는 주어진 완전생명표(Complete Lift Table)를 기초 자료로 삼고, $n(\neq 1)$ 간격간이생명표(Abridged Life Table)를 재구성(reconstruction)하기 위한 이론과 기법(mechanics '||'&'||' formulars)에 대하여 논의하였다. 아울러, 그 적용에 관한 연구로서 1988년 한국보헌계리인회가 작성한 "전보험회사경험생명표(1982-1984)"와 1991년의 "제 2회 경험생명표(1985-1987)"에 기초를 두고 5세 간격(5-age years interval) "특수간이생명표"들을 작성 제시하였다. 뿐만 아니라 위 생명표들이 표준화 사망률)Standardized Death Rate)들을 계산하여 비교하였으며, 최근 통계청이 작성해 오고 있는 생명표들의 표준화 사망률들을 비교 관찰 하므로서 한국인의 사망 경향과 그 연대적 변동의 동향(trend)을 분석 하고자 하였다.동향(trend)을 분석 하고자 하였다. The purpose of this study is to reconstruct the Specific Abridged Life Tables of Koreans, based on the Complete Life Tables of the Insurrence Companies of Korea which were constructed by the Korean Actuaries Society in 1988-1991. We compared chronologically the SDRs of the Life Tables by the National STstistica Office and the Specific Abridged Life Tables based on the Empirical Life Tables respectively. And besides, we compared the SDRs of Life Tables by National Statistical Office with the Specific Abrddged Life tabled based on the Empirical Life Tables by the Korean Actuaries Society in 1988-1991. The results of the SDRs of Koresans reveal that the tredns of the Korean Mortality from 1979 to 1991 was on decrease remarkably.

가우스의 오차론에 근거한 정규분포 배경의 역사적 고찰

구자흥 한국수학사학회 1999 Journal for history of mathematics Vol.12 No.1

The first part of this thesis discusses the types and the properties of errors, one of which makes up systematic errors of measurements, removable by detecting their causes, the other errors of accidental causes which can not be removed. The final part of this thesis deals with the historical background of the Gaussian distribution by Hershel, Hagen, Laplace and Gauss from the late 18th century to the early 19th century. It can be concluded that the accidental idea and the treatment of accidental error distribution by Gauss Is the best one based on the assumption that the most probable value of true value is the arithmetic mean of data, obtained by repeated measurements of a given quantity.

韓國의 人口問題와 그 分析에 관한 硏究: 마아코프連鎖 人口移動模型에 의한 韓國都市人口流出入 分析 및 豫測

구자흥,Koo, J.H. 한국통계학회 1973 Journal of the Korean Statistical Society Vol.1 No.1

본논문은 한국 주요도시의 인구 유출입현상을 통계적으로 구명하고 구명된 결과를 기초로 하여 앞으로의 인구를 예측하는 데에 목적이 있다. 이를 위하여서 간단한 마아코프 연쇄를 이용한 인구이동모형을 선정하고 센서스 자료를 적용하였다. 인구의 예측에는 흔희 단순 L-곡선(simple logistic curve)을 사용하는 것이 일반적인 방법이나 도시인구의 유출입과 같은 사회적 인구증가율을 내포하고 있는 경우에는 적당한 방법이라고 할 수 없겠다. 본논문은 5개의 장과 부록으로 구성되어 있으며 2장에서는 모형과 기초자료의 분석이 있고 3장에서는 모형의 적용, 4장에서는 도시 인구흡인력 등에 관련된 제반 통계량을 추정하였다. 마지막 장은 결과의 평가로 삼았다.

工産品에 大量生産을 위한 統計的 品質管理의 理論과 技法에 관한 硏究

具滋興 東國大學校 1975 論文集 Vol.14 No.-

The main purposes of the part Ⅰ of this study are to introduce the methods of quality control including Quality control Charts, and to give their stochastic principles of quality control charts. And the second aim is to give the mechanism of decision whether or not, the manufactured processes are the state of statistically stable one by making the control charts. It is obtained the following conclusions; [1.] when X is continuous, the principle of Q.C. charts based on the property of the normal distribution N(μ, σ^2) is Pr.(μ-3σ◁그림 삽입▷(원문을 참조하세요)μ+3σ)=0.9973…(1-50), where LCL=μ-3σ and UCL=μ+3σ, i.e., the manufactured process is control state, when the value of X lies between LCL, and UCL and otherwise, that of process is out of control states. And we have to check the manufactured processes which are concerning with defective causes and fix them. [2.] When the characteristic X of quality is discrete, the random variable X has the one of probability distributions of binomial and Poisson distribution such that they converge asympototically to normal distribution. therefore we can apply to these cases the principle of "3σ-control chart", which is mentioned above[1]. [3.] the theories of Sampling Inspection are included in the theories of S.Q.C. However, it is planned that the theories of sampling inspection and that of mechanism will be discussed in part Ⅱ of this study.

順序統計量에 관한 硏究 : 分布法則을 中心으로

具滋興 東國大學校 1967 論文集 Vol.3-4 No.-

The estimating of the parameter which gives information on the population its given type, for example normal distribution N(μ,σ^2), and the testing of hypothesis about the parameter (population mean, population variance, etc.)of the population are the objects of the Statistical Inference. However, it is common that the type of population containing parameters is not clear. Therefore the study of non-parametric estimation has become an urgent necessity. The study of Ordered Statistics devised as one of the most convenient and useful methods of statistics to fulfill the foregoing need. In this thesis, I have dealt with the distribution law of Ordered Statistics only. I plan to take up remaining portion of the statistical estimation and the hypothesis test by Ordered Statistics in a future study.

身體充實指數의 評價를 위한 기초조사 연구 : 특히 대학신입생(91학번)을 대상으로

具滋興 仁荷大學校 스포츠科學硏究所 1992 論文集 Vol.4 No.-

The aim of this paper is to find the physical indices of height and weight, and to estimate their parameters of the Korean college freshmen admitted in 1991. The total number of samples, 3676 freshmen, were used to obtain the data from their physical examination sheets for admission to INHA University in 1991. The major finding is that the physical strength of the student is increased as follows: 1. The mean height of the male and female students is 170cm and 160cm respectively 2. The mean weight of the male and female students is 64kg and 53kg respectively. 3. The range of the height between male and female students varies from 9cm to 13cm. 4. The range of the weight between male and female students varied from 9.6kg to 12kg. Therefore, the physical test form is recommended to be standardized according to the number of registration.

Markov 과정(過程)에 관한 연구(硏究)

구자흥,Gu, Ja-Heung 대한수학회 1982 대한수학회보 Vol.18 No.2

한국인 최초의 생명표에 관하여

구자흥,유동선 한국수학사학회 2000 Journal for history of mathematics Vol.13 No.2

The first life tables of the Korean, the so-called Chosun Joomin Saengmyong_Pyo were constructed by Misusima, the head professor, and his faculty members of Preventive Medicine Department, Division of Medical Science, Keijo Imperial University in 1937. The above mentioned life tables were based on the age specific mortality rates by the resident registration and the data of a couple of total population censuses conducted by the Governor of Chosun Government General in 1925 and 1930. And they revealed the following facts: (1) by the first Abridged Life Tables of Korean(Chosunin), the expected life span of Korean male and female were 32 and 35 from 1925 to 1930, respectively. (2) the infant mortality rate of Korean male and female were 252- and 230-person among 1000-born respectively. In conclusion, nobody knows the level of those Life Tables, but it is important in terms of that they are the origin of Korean life tables.