• Title, Summary, Keyword: Statistics

Search Result 19,617, Processing Time 0.082 seconds

History and Future of Bayesian Statistics (베이지안 통계의 역사와 미래에 대한 조망)

  • Lee, Jaeyong;Lee, Kyoungjae;Leea, Youngseon
    • The Korean Journal of Applied Statistics
    • /
    • v.27 no.6
    • /
    • pp.855-863
    • /
    • 2014
  • The recent computational revolution of Bayesian statistics has expanded use of the Bayesian statistics significantly; however, Bayesian statistics face a new set of challenges in the era of information technology. We survey the history of Bayesian statistics briefly and its expansion in the modern times. We then take a prospective future view of statistics and list challenges that the statistics community faces.

RELATIONS OF DAGUM DISTRIBUTION BASED ON DUAL GENERALIZED ORDER STATISTICS

  • KUMAR, DEVENDRA
    • Journal of applied mathematics & informatics
    • /
    • v.35 no.5_6
    • /
    • pp.477-493
    • /
    • 2017
  • The dual generalized order statistics is a unified model which contains the well known decreasingly ordered random variables like order statistics and lower record values. With this definition we give simple expressions for single and product moments of dual generalized order statistics from Dagum distribution. The results for order statistics and lower records are deduced from the relations derived and some computational works are also carried out. Further, a characterizing result of this distribution on using the conditional moment of the dual generalized order statistics is discussed. These recurrence relations enable computation of the means, variances and covariances of all order statistics for all sample sizes in a simple and efficient manner. By using these relations, we tabulate the means, variances, skewness and kurtosis of order statistics and record values of the Dagum distribution.

Research on grading the quality level and developing the comparability index of the national statistics (국가승인통계 품질 등급 부여 및 상대지표 개발)

  • Shim, Kyu-Ho
    • Journal of the Korean Society for Quality Management
    • /
    • v.38 no.2
    • /
    • pp.150-160
    • /
    • 2010
  • Statistics Korea has been diagnosis national statistics every year since 2006. They diagnosis over 200 kinds of national statistics. They have 7 quality dimension used for quality diagnosis. That is relevance, accuracy, Timeliness, Comparability, Coherence, Accessibility. Since we are interest in how well they produce national statistics, comparability has become the most important dimension recently. In this reason, Statistics Korea try to rating quality level and development comparability index for national statistics. This paper propose the practical method of grading the quality level and developing the comparability index of the national statistics.

A case study on the selection of representative statistics for systematic management of administrative statistics (행정통계의 체계적 관리를 위한 대표적 통계항목 선정 사례연구)

  • Lee, Kang-Jin;Kim, Min-Kyoung;Ahn, Jeong-Yong;Choi, Kyoung-Ho
    • Journal of the Korean Data and Information Science Society
    • /
    • v.23 no.1
    • /
    • pp.63-70
    • /
    • 2012
  • In spite of growing demand for the region specific statistics, due to the increase in the cost of making out statistics and other reasons, utilizing survey statistics has limitation on coping with it. Thus, administrative statistics could be a feasible option. In this study, we selected "representative statistics", which are frequently used in establishing regional policy and reflect regional characteristics, among the Jeollabuk-do's administrative statistics. And we suggested the way to enhance quality and credential of the administrative statistics by using systematic management. As a result, we selected 45 statistics for Jeollabuk-do's "representative statistics". The reason that we raise the issue on the necessity of selecting "representative statistics" and specify its selection process is to give guidance to systematic management and efficient utilization of the local government's administrative statistics.

The current status of environmental statistics in Korea (우리 나라 환경통계의 현황)

  • 박성현
    • The Korean Journal of Applied Statistics
    • /
    • v.9 no.1
    • /
    • pp.179-202
    • /
    • 1996
  • This paper, first of all, surveys the current status of the environmental statistics in Korea. And then, by comparing Korean environmental statistics with the environmental statistics of the European Union and the environmental statistics recommended by the United Nations, some insufficient environmental statistics of Korea are listed and discussed. Finally, desirable directions for future development in environmental statistics in Korea are suggested and discussed.

  • PDF

A quantitative analysis of the use of statistics in library and information science (문헌정보학 분야의 통계기법 사용에 관한 계량적 연구)

  • 사공철;최정희
    • Journal of Korean Library and Information Science Society
    • /
    • v.20
    • /
    • pp.31-60
    • /
    • 1993
  • The purpose of this study is to analyze quantitatively the use of statistics, especially inferential statistics, in library and information science. Thus this study compared the use of statistics in library and information science with it in social work and education. The results of this study are as follows: First, the result is that, when the proportions of articles in each of the three categories of use are compared, library and information science is deficient in the use of inferential statistics and unusually productive of articles in 'No Statistics' category and 'Descriptive Statistics Only' category. Second, ANOVA showed no significant difference in the means for number of articles with no statistics and for articles with descriptive statistics only, but did show a statistically significant difference for the means for number of articles with inferential statistics. That is, the use of inferential statistics in library and information science was very less than the other subject areas. Third, a comparison of the numbers of various inferential statistics for each of the three subject areas indicated that the differences were not significant. This fact means that the quality of inferential statistics used in library and information science was similar to the other subjects.

  • PDF

Infant, maternal, and perinatal mortality statistics in the Republic of Korea, 2014 (2014 년도 영아사망, 모성사망, 출생전후기사망 통계)

  • Vital Statistics Division, Statistics Korea;Shin, Hyun-Young;Lee, Ji-Youn;Song, Juhwa;Lee, Seokmin;Lee, Junghun;Lim, Byeongsun;Kim, Heyran;Huh, Sun
    • Journal of the Korean Medical Association
    • /
    • v.60 no.7
    • /
    • pp.588-597
    • /
    • 2017
  • This study aimed to analyze infant, maternal, perinatal, and fetal mortality statistics in the Republic of Korea (Korea), 2014. It was based on the open-access data available from the Statistics Korea website (http://kostat.go.kr/portal/eng/index.action). Recent trends in these vital statistics were also examined. The results of this study constitute a descriptive presentation and analysis of the national data. The number of infant deaths was 1,305 out of 435,435 live births in 2014, and the infant mortality rate was 3.0. The number of maternal deaths was 48. The maternal mortality ratio per 100,000 live births was 11.0. The maternal mortality ratio per 100,000 women of child-bearing age (15 to 49 years old) was 0.37. The number of perinatal deaths was 1,365, and the perinatal mortality rate was 3.1. The number of fetal deaths was 5,317. The fetal mortality rate was 12.1. The trends in those vital statistics in recent years were consistent except for a few findings, including a decrease in the maternal mortality ratio of pregnant women 40 years old and older and a change in the proportions of the causes of infant death, with a decrease in mortality due to neonatal respiratory distress and an increase in mortality due to bacterial sepsis. Although these vital statistics were generally consistent, some aspects varied by year. Pregnant women less than 20 years old should be monitored more intensively for their babies' health. Our findings can serve as basic data supporting the establishment of health policies by the Korean government.

A Study on the Problems of Korea Merchandise Trade Statistics (무역통계 및 실적 차이에 관한 제(諸)문제)

  • PARK, Kwang-So;PARK, Youn-Woo
    • The Korean Research Institute of International Commerce and Law
    • /
    • v.67
    • /
    • pp.209-231
    • /
    • 2015
  • The accurate national trade statistics can show the real nation's trade situation, and contribute to setting up the national's trade plans and corporate's strategies. This study researches the differences between trade statistics and actual trade record among the national and international statistics and suggests improvement plans to solve the problems. There are 4 types' differences among the trade statistics as follows; First, a statistical differences between Korea Customs Service and Bank of Korea by yearly US$9.6billions because of standard and boundary of trade statistics. Second, a statistical differences between Ministry of Trade, Industry and Energy and Korea Customs Service because of the time and purpose of trade statistics release. Third, a statistical differences between Korea and counterpart countries because of standard of trade statistics, intermediate countries and rules of origin. Lastly, a statistical differences between nation's statistics and corporate record because of typing errors and indirect export record. The fundamental improvement plans are Korea statistics rules like Korea Foreign Trade Rules and Korea Custom Rules, need to coincide with the international rules like IMTS, MSITS, BPM6 etc. Especially the rules of statistics related to intermediary trade, processing trade and transit trade have to revise with new BPM6 rules. In addition, a reasonable care of trade statistics from accumulation to utilization of trade information is more important than statistical regulation or system, so all persons concerned including exporters, importers, government official pay attention the statistics and cooperate together.

  • PDF

The Developing of Analytical Statistics System for the Efficiency of Defense Management (국방경영 효율화를 위한 분석형 통계시스템 구축)

  • Lee, Jung-Man
    • Journal of the Society of Korea Industrial and Systems Engineering
    • /
    • v.38 no.3
    • /
    • pp.87-94
    • /
    • 2015
  • Recently, management based on statistical data has become a big issue and the importance of the statistics has been emphasized for the management innovation in the defense area. However, the Military Management based on the statistics is hard to expect because of the shortage of the statistics in the military. There are many military information systems having great many data created in real time. Since the infrastructure for gathering data form the many systems and making statistics by using gathered data is not equipped, the usage of the statistics is poor in the military. The Analytical Defense Statistics System is designed to improve effectively the defense management in this study. The new system having the sub-systems of Data Management, Analysis and Service can gather the operational data from interlocked other Defense Operational Systems and produce Defense Statistics by using the gathered data beside providing statistics services. Additionally, the special function for the user oriented statistics production is added to make new statistics by handling many statistics and data. The Data Warehouse is considered to manage the data and Online Analytical Processing tool is used to enhance the efficiency of the data handling. The main functions of the R, which is a well-known analysis program, are considered for the statistical analysis. The Quality Management Technique is applied to find the fault from the data of the regular and irregular type. The new Statistics System will be the essence of the new technology like as Data Warehouse, Business Intelligence, Data Standardization and Statistics Analysis and will be helpful to improve the efficiency of the Military Management.

A Study on the Surveyed Courses which are Related with or Support the Subject of Statistics

  • Shin, Jae-Kyoung;Chang, Duk-Joon
    • Journal of the Korean Data and Information Science Society
    • /
    • v.15 no.4
    • /
    • pp.837-843
    • /
    • 2004
  • Recently the status of statistics is in a critical condition in the curriculum of the universities. It is largely due to the decrease of applicants for the admission to the universities and growing tendency to prefer the departments that are advantageous for getting a job after graduation. Another reason for the present crisis of statistics is that scholars of statistics and related scholarly associations fail to prepare measures for the activation of statistics. In order to cope with these general problems, this study surveyed the courses which are related with or support the subject of statistics in the department, other than statistics, of two universities in the Yeongnam province. Based on the survey this study aims at suggesting some ways of activation of statistics.

  • PDF