• Title/Summary/Keyword: Statistical indicators

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Indicators of Rural Regional Development Level by the City/County Type (농촌지역 발전수준 지표체계 설정과 시·군 유형별 비교)

  • Koo, Seung-Mo;Park, Yoon-Ho;Lee, Han-Sung;Choi, Se-Hyun
    • Journal of agriculture & life science
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    • v.44 no.3
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    • pp.99-110
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    • 2010
  • This paper builds a system of indicators representing rural regional development level. Indicators were classified into two groups, that is, living environment indicator group and regional vitality indicator group. Living environment indicator group consists of four indicators including housing, road, water supply, and sewage system, while regional vitality indicator group consists of five indicators including regional economy, public finance, and demography. Real data of the year 2002 and 2006 were used to do the basic statistical analysis and estimate the suitable statistical distributions for each indicator. Data were applied for the three city/county type, general city, urban-rural combined city, and county. General cities have the strongest urbanization tendency among the three types, while counties have the weakest tendency. General cities turned out to be superior in housing condition, road density, water supply system and sewage system. Indicators of employment and local finance showed the highest levels in counties. The results of this analysis are expected to provide local governments with the appropriate reference for their rural regional development policy.

Modeling of LULC Dynamics in Bekasi District-Indonesia by Linking NDVI Measurement and Socio-Economic Indicators

  • Mustafa, Adi Junjunan;Tateishi, Ryutaro
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.516-518
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    • 2003
  • This study discusses an effort to build a model to link normalized difference vegetation indices (NDVI) and socio-economic indicators derived from village survey (1990, 1993, 1996, and 2000) statistical data in Bekasi, West Java, Indonesia. Socio-economics indicators of sub-district level, in this study the number of agricultural households (AH), are aggregated from village level data. NDVI from Landsat-TM resolution data (1989 and 1997) are computed to detect land use/land cover (LULC) dynamics in the sub-district areas. Attention is mainly paid on the examination of agricultural land cover changing in the sub-district level. NDVI measurements might be used to predict AH dynamics as showed by computed linear regression models.

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A STATISTICAL APPROACH FOR DERIVING KEY NFC EVALUATION CRITERIA

  • Kim, S.K.;Kang, G.B.;Ko, W.I.;Youn, S.R.;Gao, R.X.
    • Nuclear Engineering and Technology
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    • v.46 no.1
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    • pp.81-92
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    • 2014
  • This study suggests 5 evaluation criteria (safety and technology, environmental impact, economic feasibility, social factors, and institutional factors) and 24 evaluation indicators for a NFC (nuclear fuel cycle) derived using factor analysis. To do so, a survey using 1 on 1 interview was given to nuclear energy experts and local residents who live near nuclear power plants. In addition, by conducting a factor analysis, homogeneous evaluation indicators were grouped with the same evaluation criteria, and unnecessary evaluation criteria and evaluation indicators were dropped out. As a result of analyzing the weight of evaluation criteria with the sample of nuclear power experts and the general public, both sides recognized safety as the most important evaluation criterion, and the social factors such as public acceptance appeared to be ranked as more important evaluation criteria by the nuclear energy experts than the general public.

Development Needs and Direction of an Ecological Grading System of Korean Tidal Flats (한국 갯벌 생태 등급도의 개발 필요성과 방향)

  • Yoo, Jae-Won;Lee, Chang-Gun;Kho, Byung-Seol;Lee, Si-Wan;Han, Dong-Uk;Choi, Keun-Hyung;Kim, Chang-Soo;Hong, Jae-Sang
    • Ocean and Polar Research
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    • v.32 no.2
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    • pp.137-144
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    • 2010
  • There is a host of habitat assessment systems available to evaluate and grade tidal flat ecosystems in Korea. Nevertheless, we recognize the need to develop a better ecological scheme to improve reliability and accuracy given the importance of using an empirical approach in assigning grades to indicators and the limitation of current systems which evaluate tidal flats on a regional basis. A preferable system would be one that enables habitat mapping within a tidal flat, provides a diagnosis of ecological stress/health, has a high level of ecological relevance, communicability, and statistical robustness, and enables evaluation of diverse habitats within a tidal flat. The following points should be considered in framing such a system. Indicators should discriminate habitat quality into five to seven grades accomodating diverse characteristics and conservation value of a habitat, and the grading should be made from frequency distribution of indicators based on nationwide data.We suggest the following tasks in crafting such a system: i) The decision on selection of indicators should be made based on accuracy of assessment and practical application; ii) effects of physical habitat conditions on variability of indicators should be reflected; and, iii) further works on stress/health indicators should be addressed for adopting a multiple-indicator approach which reduces misdiagnosis.

A Study on Document Citation Indicators Based on Citation Network Analysis (인용 네트워크 분석에 근거한 문헌 인용 지수 연구)

  • Lee, Jae-Yun
    • Journal of the Korean Society for Library and Information Science
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    • v.45 no.2
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    • pp.119-143
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    • 2011
  • This study identifies the characteristics of recent citation-based indicators for assessing a single paper in the context of their co-relationships. Five predefined indicators were examined with three variants of h-index which are convened in this study; the formers are PageRank, SCEAS Rank, CCI, f-value, and single paper h-index and the latters are $h_S$-index, h1-index, and $h_S$1-index. The correlation analysis and cluster analysis were performed to group the indicators by common characteristics, after which the indicators were calculated with the dataset from KSCI DB. The results show statistical evidence that distinguishes h-index type indicators from others. The characteristics of the indicators were verified with citation frequency factors using correlation analysis. Finally, the implications for applications and further studies are discussed.

Control and Aggregation (I)

  • Han, Sung-Shin
    • Journal of the Korean Statistical Society
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    • v.8 no.2
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    • pp.139-163
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    • 1979
  • Utilization of the aggregation concept applied in economics has been a traditional way of describing the state of an economic system and of predicting the future economic conditions. In addition, certain aggregate variables have also played a crucial role as indicators of the business cycle. Quick examples would be the price index, the productivity changes, the industrial production index, GNP, and so on. The methods of aggregation could be either simple summations, like GNP, or sophisticated weighted average, like the price index.

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Accuracy of Multiple Outlier Tests in Nonlinear Regression

  • Kahng, Myung-Wook
    • Communications for Statistical Applications and Methods
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    • v.18 no.1
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    • pp.131-136
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    • 2011
  • The original Bates-Watts framework applies only to the complete parameter vector. Thus, guidelines developed in that framework can be misleading when the adequacy of the linear approximation is very different for different subsets. The subset curvature measures appear to be reliable indicators of the adequacy of linear approximation for an arbitrary subset of parameters in nonlinear models. Given the specific mean shift outlier model, the standard approaches to obtaining test statistics for outliers are discussed. The accuracy of outlier tests is investigated using subset curvatures.

Assessing the Accuracy of Outlier Tests in Nonlinear Regression

  • Kahng, Myung-Wook;Kim, Bu-Yang
    • Communications for Statistical Applications and Methods
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    • v.16 no.1
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    • pp.163-168
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    • 2009
  • Given the specific mean shift outlier model, the standard approaches to obtaining test statistics for outliers are discussed. Accuracy of outlier tests is investigated using subset curvatures. These subset curvatures appear to be reliable indicators of the adequacy of the linearization based test. Also, we consider obtaining graphical summaries of uncertainty in estimating parameters through confidence curves. The results are applied to the problem of assessing the accuracy of outlier tests.

A Systematic Approach to Quality Measurement of Official Statistics) (국가통계 품질측정을 위한 체계적 접근 - 표본조사의 품질평가지표 개발을 중심으로)

  • 이동명;김설희
    • Proceedings of the Korean Association for Survey Research Conference
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    • 2002.11a
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    • pp.111-127
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    • 2002
  • As the utilization of official statistics has been recently increased, the necessity of objective quality assessment also has been increased. Since mean square error(MSE) and response rate, which have been considered as representative quality indicators in the past, may have the limits of use, it has been demanded to develop new quality indicators which are able to reflect the various requirements of users. In this paper, regarding sample surveys conducted by governmental agencies, the flow of procedures in statistics production is analyzed using input-output of each procedure. As the result, how to identify and develop quality indicators for each procedure is discussed, with some instances of indicators. Finally, the quality index using the results of quality assessment would be calculated based on a weighting method by the size of deviation of statistical measures.

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A Study on the Developing of Evaluation Indicators of Special Libraries (전문도서관 평가지표 개발에 관한 연구)

  • Park, Hee-Sook;Jeong, Dong-Youl
    • Journal of the Korean Society for Library and Information Science
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    • v.42 no.3
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    • pp.11-43
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    • 2008
  • The purpose of this study is to develop evaluation indicators for special libraries. Finally. overall nine evaluation areas including library management. human resources. information resources, finance resources. facility resources. information uses. information services. information sharing and library specialities and 70 evaluation indicators in consideration of the special libraries' characteristics and environments were developed based on the results of the survey of the experts and librarians of the special libraries and on the application of statistical analysis.