• 제목/요약/키워드: Statistics

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

  • 이재용;이경재;이영선
    • 응용통계연구
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    • 제27권6호
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    • pp.855-863
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    • 2014
  • 최근 계산 기술의 진보로 인하여, 베이지안 통계는 급속도로 확산되어 가고 있다. 그러나, 정보화 시대에 들어서면서 베이지안 통계를 비롯한 통계학은 새로운 문제들에 직면하게 되었다. 이 논문에서는 베이지안 통계의 역사를 간단히 살펴보고, 베이지안 통계의 현재의 영향력에 대해서 알아본다. 그리고 통계학의 미래와 통계학계가 직면한 도전과제들에 대하여 생각해 볼 것이다.

RELATIONS OF DAGUM DISTRIBUTION BASED ON DUAL GENERALIZED ORDER STATISTICS

  • KUMAR, DEVENDRA
    • Journal of applied mathematics & informatics
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    • 제35권5_6호
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    • pp.477-493
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    • 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.

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

  • 심규호
    • 품질경영학회지
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    • 제38권2호
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    • pp.150-160
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    • 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.

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

  • 이강진;김민경;안정용;최경호
    • 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.

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

  • 박성현
    • 응용통계연구
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    • 제9권1호
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    • pp.179-202
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    • 1996
  • 우리나라 환경통계의 현주소를 살펴보고, 유럽연합 환경통계와 유엔이 권고하는 환경통계와 비교하여 우리나라 환경통계의 부족한 점을 지적하기로 한다. 그리고 환경 통계의 작성과 활용을 위하여 바람직한 발전 방향이 무엇인가를 고찰하여 보기로 한다.

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

  • 사공철;최정희
    • 한국도서관정보학회지
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    • 제20권
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    • pp.31-60
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    • 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.

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

  • 박광서;박연우
    • 무역상무연구
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    • 제67권
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    • pp.209-231
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    • 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.

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

  • 이정만
    • 산업경영시스템학회지
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    • 제38권3호
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    • pp.87-94
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    • 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.

Recurrence Relation and Characterization of The Rayleigh Distribution Using Order Statistics

  • Lee, In-Suk;Kim, Sang-Moon
    • Journal of the Korean Data and Information Science Society
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    • 제10권2호
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    • pp.299-311
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    • 1999
  • In this paper the single and product moments of order statistics of the doubly truncated Rayleigh distribution are studied. Some recurrence relations of order statistics are derived. Using order statistics, also characterization of the Rayleigh distribution are derived.

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통계작성기관의 통계품질관리를 위한 가이드라인 연구 (A Study on Statistics Quality Guidelines for Statistical Agencies)

  • 박성현;박진우
    • 응용통계연구
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    • 제17권3호
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    • pp.557-571
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    • 2004
  • 통계품질(statistics quality)은 통계가 얼마나 사용자들이 이용하기에 적합한가를 나타내는 특성으로, 최근 선진국 및 국제기관들을 중심으로 높은 관심을 보이고 있다. 본 논문에서는, 통계품질관리의 개념, 통계품질의 척도, 통계품질관리의 8단계(조사기획, 표본설계, 조사표 설계, 조사원 훈련 및 자료수집, 조사결과 분석, 이용자 서비스, 사후관리, 통계품질평 가 및 관리 )를 소개하고, 표본조사통계를 위한 통계품질관리 가이드라인을 제시한다.