• Title/Summary/Keyword: Statistical indicator

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Export-Import Value Nowcasting Procedure Using Big Data-AIS and Machine Learning Techniques

  • NICKELSON, Jimmy;NOORAENI, Rani;EFLIZA, EFLIZA
    • Asian Journal of Business Environment
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    • v.12 no.3
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    • pp.1-12
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    • 2022
  • Purpose: This study aims to investigate whether AIS data can be used as a supporting indicator or as an initial signal to describe Indonesia's export-import conditions in real-time. Research design, data, and methodology: This study performs several stages of data selection to obtain indicators from AIS that truly reflect export-import activities in Indonesia. Also, investigate the potential of AIS indicators in producing forecasts of the value and volume of Indonesian export-import using conventional statistical methods and machine learning techniques. Results: The six preprocessing stages defined in this study filtered AIS data from 661.8 million messages to 73.5 million messages. Seven predictors were formed from the selected AIS data. The AIS indicator can be used to provide an initial signal about Indonesia's import-export activities. Each export or import activity has its own predictor. Conventional statistical methods and machine learning techniques have the same ability both in forecasting Indonesia's exports and imports. Conclusions: Big data AIS can be used as a supporting indicator as a signal of the condition of export-import values in Indonesia. The right method of building indicators can make the data valuable for the performance of the forecasting model.

Statistical Analysis of Work Performance Indicator (작업 성과지표의 통계적 분석 방법에 관한 연구)

  • Moon, Hyo-Gi;Yu, Jung-Ho;Kim, Chang-Duk
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2007.11a
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    • pp.947-952
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    • 2007
  • The construction project is composed of individual trade which is consists of each activity. and the performance of each activity is the lowest level to influence the project performance. Consequently, It is essential to measure and evaluate the performance of the each assignment. But the existing performance measurement have mainly focussed on company level and project level. Therefore, this paper select PPC as the indicator of a activity and, suggests the analysis method of indicators for a goal-oriented management and continuous improvement through a statistical control techniques.

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A study on 3-step complex data mining in society indicator survey (사회지표조사에서의 3단계 복합 데이터마이닝의 적용 방안)

  • Cho, Kwang-Hyun;Park, Hee-Chang
    • Journal of the Korean Data and Information Science Society
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    • v.23 no.5
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    • pp.983-992
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    • 2012
  • Social indicator survey can identify the state of society as a whole. When we create a policy, social indicator survey can reflect the public opinion of the region. Social indicator survey is an important measure of social change. Social indicator survey has been conducted in many municipalities (Seoul, Incheon, Busan, Ulsan, Gyeongsangnamdo, etc.). But, the result of social indicator survey analysis is mainly the basic statistical analysis. In this study, we propose a new data mining methodology for effective analysis. We propose a 3-step complex data mining in society indicator survey. 3-step complex data mining uses three data mining method (intervening association rule, clustering, decision tree).

A study on the composition validity of performance indicators for public sewage treatment plant by using factor analysis (요인분석기법을 활용한 공공하수처리시설 성과평가 지표의 구성 타당성 연구)

  • Yoon, Cheon-Yeo;Koo, Ja-Yong
    • Journal of Korean Society of Water and Wastewater
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    • v.29 no.5
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    • pp.583-590
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    • 2015
  • Evaluation and comparison for the performance on the contracting-out became possible after the introduction of the performance indicators(PIs) in 2012 in Korea, And local governments and private companies are utilizing them as evaluation data to enhance the performance of the contracting-out. Several revisions on performance indicator were carried out by expert group on contents validity of PIs, But the review of the composition validity of PIs was not sufficient. In this study, the applicability, distinction ability and composition validity of PIs is evaluated by statistical method. From the results, Improvement of indicator is required in order to increase the interrelationship among indicators to enhance the compostion validity of indicators related with operation, sludge and water reuse.

A study on the analysis of production-related key performance indicator affecting business positioning of machinery manufacturers (중소기계제조업의 사업포지셔닝에 영향을 미치는 생산관련 핵심성과지표에 관한 연구)

  • Cheong, Hae-Sock;Yoo, Woo-Sik
    • Journal of the Korea Safety Management & Science
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    • v.14 no.2
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    • pp.221-228
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    • 2012
  • This paper analyzed twenty-six production-related KPI(Key Performance indicator) factors of business diagnosis, such as personnel, equipment, materials, operations and quality affecting company business competition to 186 small machinery manufacturers in 2010. Also, we explained the concept of Business Positioning and divided research subjects into four Business Positioning Groups formed break-even point ratio & fixed cost ratio to sales and then we compared between the 4 groups using Logistic Regression analysis by SAS statistical software package. The objective of this study is two-fold. The first is to find out production-related KPI factor of superior Business Positioning Group. The second is to suggest improvement ways for small manufacturers in order to get better profitable Business Positioning.

Mathematical Evaluation of Response Behaviors of Indicator Organisms to Toxic Materials (지표생물의 독성물질 반응 행동에 대한 수리적 평가)

  • Chon, Tae-Soo;Ji, Chang-Woo
    • Environmental Analysis Health and Toxicology
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    • v.23 no.4
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    • pp.231-245
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    • 2008
  • Various methods for detecting changes in response behaviors of indicator specimens are presented for monitoring effects of toxic treatments. The movement patterns of individuals are quantitatively characterized by statistical (i.e., ANOVA, multivariate analysis) and computational (i.e., fractal dimension, Fourier transform) methods. Extraction of information in complex behavioral data is further illustrated by techniques in ecological informatics. Multi-Layer Perceptron and Self-Organizing Map are applied for detection and patterning of response behaviors of indicator specimens. The recent techniques of Wavelet analysis and line detection by Recurrent Self-Organizing Map are additionally discussed as an efficient tool for checking time-series movement data. Behavioral monitoring could be established as new methodology in integrative ecological assessment, tilling the gap between large-scale (e.g., community structure) and small-scale (e.g., molecular response) measurements.

Development of Small Area Health Promotion Indicator for Community Health Initiative (지역보건 관련 소지역간 건강증진지표 개발에 관한 연구)

  • Kim, Chun-Bae;Go, Kawung-Uk;Park, Jae-Sung;Choe, Heon
    • Korean Journal of Health Education and Promotion
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    • v.20 no.1
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    • pp.19-39
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    • 2003
  • Purpose: Although there is a lot of secondary data available for comparing community health status and planning health policies in terms of large area such as metropolitan cities or provinces, there is restricted data for establishing community health policies of the small areas such as towns, Gun(i.e., districts), and Gu. Specifically, the problems of producing a valuable index for health promotion in small areas are three fold: First, there is not an appropriate index model for measuring a small community health status. Second, a large part of secondary data in the small areas has been produced in an irregular time interval. In addition, all valuable data can not be integrated without time consuming work. Thus this study tries to establish a health promotion index model for assisting community health promotion initiatives of local governments. Methods and materials: Literature review, community health specialist consultation and a questionnaire survey was performed. Results: Based on Dever's model, a prototype of health promotion indicators was proposed and modified by the community health specialists. 15 classification scheme of statistical yearbook reorganized into the six areas. Those six areas were comprised in 24 indicator class with 96 specific indicators. Through further modification processes by a questionnaire survey, we developed a health promotion indicator model that contains six areas with 23 indicator class encompassed by 87 specific indicators. Conclusions: This study proposed a model of health promotion indicator comprised in the six areas with 23 indicator classes for measuring small area health promotion status. However, more specific or additional data in human biology, environment, and socioeconomic data is essential for producing a stronger model for health promotion measurement.

Development of Diagnostic Indicator in Fishing Villages by Spatial Scale (공간규모별 어촌지역 진단지표 개발)

  • Cho, Eun Jung;Oh, Yun Gyeong;Bae, Seung Jong;Kim, Soo Jin;Lee, Sang Hyun
    • Journal of Korean Society of Rural Planning
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    • v.27 no.1
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    • pp.9-20
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    • 2021
  • In order to develop practical indicator that can diagnose the regional conditions and characteristics of fishing villages, this study reviewed domestic and foreign researches and selected the diagnostic indicator of fishing villages by spatial unit. The major categories are divided into population and society, economic conditions, and living conditions. The middle categories consists of population, household, industry, tourism, settlement, environment, safety, health and welfare, education, and culture and leisure. The indicator were selected with reference to the existence of statistical data officially provided according to the spatial range(Si/Gun, eup/myeon, village). Based on the selected indicator, the test evaluation was conducted in Jindo-gun, Jeollanam-do by applying data that can be obtained from KOSIS and web GIS. It is judged that the diagnostic indicator developed through this research can be used in various ways from the planning stage to the implementation stage of the regional development project, such as grasping the current conditions, setting improvement targets, promotion and evaluation/monitoring of the project. In addition, it is expected that it will be possible to carry out regional diagnosis for each spatial unit and to plan and implement regional development projects by giving priority to areas where the level of each department is insufficient.

Developing the Quality Assessment Indicators for the National Processing Statistics of Korea

  • Kim, Soo-Taek;Jeong, Ki-Ho;Kim, Seol-Hee
    • Communications for Statistical Applications and Methods
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    • v.14 no.3
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    • pp.649-665
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    • 2007
  • The improvement of quality is a continuous process and one of the main objectives of the Statistical Strategy launched by the Korea National Statistical Office (KNSO) is the enhancement of the quality of Korea national statistics. In this paper, we define the processing statistic, classify the Korea national processing statistics, and develop the quality indicators and check list for assessing the national processing statistics of Korea. During its development, the indicators has been discussed with the processing statistic managers of the KNSO and the checklist tested in a pilot study covering a variety of processing statistic areas.

Geometric Interpretation on Chebyshev Type Inequalities

  • Lee, Kee-Won;Kim, Yoon-Tae
    • Communications for Statistical Applications and Methods
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    • v.6 no.1
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    • pp.261-266
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    • 1999
  • We present a geometric interpretation of Chebyshev type inequalities. This uses a simple diagram which illustrates the functional bound for the indicator function of the event whose probability we want to assess. We also give a geometric interpretation of the inequalities in terms of volume in a Euclidean space of appropriate dimension. Markov's inequality and Chebyshev's inequality are treated in more detail.

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