• Title/Summary/Keyword: Indicator selection

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Algorithm for Finding the Best Principal Component Regression Models for Quantitative Analysis using NIR Spectra (근적외 스펙트럼을 이용한 정량분석용 최적 주성분회귀모델을 얻기 위한 알고리듬)

  • Cho, Jung-Hwan
    • Journal of Pharmaceutical Investigation
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    • v.37 no.6
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    • pp.377-395
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    • 2007
  • Near infrared(NIR) spectral data have been used for the noninvasive analysis of various biological samples. Nonetheless, absorption bands of NIR region are overlapped extensively. It is very difficult to select the proper wavelengths of spectral data, which give the best PCR(principal component regression) models for the analysis of constituents of biological samples. The NIR data were used after polynomial smoothing and differentiation of 1st order, using Savitzky-Golay filters. To find the best PCR models, all-possible combinations of available principal components from the given NIR spectral data were derived by in-house programs written in MATLAB codes. All of the extensively generated PCR models were compared in terms of SEC(standard error of calibration), $R^2$, SEP(standard error of prediction) and SECP(standard error of calibration and prediction) to find the best combination of principal components of the initial PCR models. The initial PCR models were found by SEC or Malinowski's indicator function and a priori selection of spectral points were examined in terms of correlation coefficients between NIR data at each wavelength and corresponding concentrations. For the test of the developed program, aqueous solutions of BSA(bovine serum albumin) and glucose were prepared and analyzed. As a result, the best PCR models were found using a priori selection of spectral points and the final model selection by SEP or SECP.

Ranking Decision on Assessment Indicator of Natural Resource Conservation Area Using Fuzzy Theory - Focused on Site Selection for the National Trust - (퍼지이론을 이용한 자연자원 보전지역의 평가지표 순위 결정 - 내셔널 트러스트 후보지 선정을 중심으로 -)

  • You Ju-Han;Jung Sung-Gwan;Park Kyung-Hun;Oh Jeong-Hak
    • Journal of the Korean Institute of Landscape Architecture
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    • v.33 no.4 s.111
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    • pp.97-107
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    • 2005
  • This study was carried out to construct accurate and scientific system of assessment indicators in selection of National Trust conservation areas, which was new concept of domestic environment movement and offer the raw data of new analytic method by introducing the fuzzy theory and weight for overcoming the uncertainty of ranking decision. To transform the Likert's scale granted to assessment indicators into the type of triangular fuzzy number(a, b, c), there was conversion to each minimum(a), median(b), and maximum(c) in applying membership function, and in using the center of gravity and eigenvalue, there was to decide the ranking. The rankings of converted values applied a mean importance and weight were confirmed that they were generally changed. Therefore, the ranking decision was better to accomplish objective and rational ranking decision by applying weight that was calculated in grouping of indicator than to judge the singular concept and to be useful in assessment of diverse National Trust site. In the future, because AHP, which was general method of calculating weight, was lacked, there was to understand the critical point to fix a pertinent weight, and to carry out the study applying engineering concept like fuzzy integral using $\lambda-measure$.

A Study on the Indicator Development for the Target Technology Selection of Technology Assessment (기술영향평가 대상기술 선정 지표 개발에 관한 연구)

  • Han, Min-Kyu;Kang, Ji-Min
    • Journal of Technology Innovation
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    • v.19 no.1
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    • pp.55-78
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    • 2011
  • The social impact of science and technology is increasing, the meaning of technology assessment is not small in modern society, Specially, the technology assesment(TA) has been institutionalized and performed by Korean administration and its official results has reflected directly in the S&T policy. Therefore, the technology assesment is a device that prepare the negative effects of S&T and the social controversy in advance. To select the target technology of technology assessment will be done carefully in various perspective and concerned with the characteristics of technology assessment emphasizing social assessment, the institutional system of selecting one technology in each year and the contents and methods of evaluation that are determined in accordance with technology characteristics. However, the method of selecting target technology in TA is mostly peformed by qualitative discussion and vote rather than by reflecting various opinion and understanding TA until now. In this paper, we developed the indicator has to be considered to select target technology for TA by using factor analysis. Developed indicator is consist of five factor, such as the need for social consensus and the size of social/cultural impact etc., and we weight each factor by using Analytic Hierarchy Process(AHP). Futhermore, we show the example how to applicate directly these indicator and weights to select target technology and suggest institutional application in TA. Though using developed indicator in this paper, we expect to select appropriate technology for institutional TA and the application of TA results in society and public policy can be strengthened.

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Selection of Indicator Plants to Evaluate the Effects of Agri-environmental Conservation Program: On the Rice Paddy Fields in South Korea (농업환경보전프로그램의 효과 검증을 위한 지표식물 선정: 논 생태계를 대상으로)

  • Kim, Myung-Hyun;Kim, Min-Kyeong;Choi, Soon-Kun;Eo, Jinu;Yeob, So-Jin;Bang, Jeong Hwan
    • Korean Journal of Environmental Agriculture
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    • v.40 no.3
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    • pp.169-178
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    • 2021
  • BACKGROUND: The Ministry of Agriculture, Food and Rural Affairs is promoting agri-environment conservation program to induce farmers to participate in agricultural environment improvement and conservation activities. However, assessment tools based on scientific evidence are needed to determine the effectiveness of the program objectively and quantitatively. Therefore, this study was performed to develop plant indicators in order to efficiently evaluate the effects of the agri-environment conservation program promoted by the Ministry of Agriculture, Food and Rural Affairs. METHODS AND RESULTS: The survey was conducted in five regions (Hampyeong, Boryeong, Mungyeong, Hongseong, and Sangju) participating in the agri-eonvironment conservation program. In each region, twenty paddy fields were investigated (ten paddy fields included in the program and ten paddy fields not included in the program). A total of 231 taxa vascular plants were identified in the paddy fields that were included in the agri-environment conservation program, and a total of 177 taxa were identified in the paddy fields that were not included. The average species number occurred on each field was 55.8 taxa in the fields included in the program, and 35.0 taxa in the fields not included in the program. The difference in occurring plants between two groups was found to be more higher in perennial plants than in annual plants. We selected the six groups as indicator plants through five criteria such as perennial plants and broadly occurring species, etc. to verify the effectiveness of the agri-environment conservation program: Taraxacum spp., Ixeris spp., Viola spp., Platago spp., Calystegia spp., and rare and endagered species. There was a high positive correlation between the score calculated using these indicator plants and the total number of plants species. CONCLUSION: This study suggests that it is possible to evaluate the agro-ecological environment by using indicator plants. The selected indicator plants can be effectively used to verify the effectiveness of projects such as agri-environmental conservation programs in the future.

Analysis of Evaluation Indicators for the Development of Evaluation Models of Foreign Academic Journals (대학도서관의 외국학술지 평가모형 개발을 위한 평가지표 분석)

  • 김신영;이창수
    • Journal of the Korean Society for information Management
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    • v.21 no.2
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    • pp.45-67
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    • 2004
  • The purposes of this study are to compare and analyze the evaluation indicators for selection of journal suggested by scholars and organizations and to prepare theoretical background for the ideal model to meet opposing paradigms of collection management in academic libraries. A web survey method was employed to investigate applications of various selection criteria (27 for printed and 37 for electronic academic Journal) from the top 40 academic libraries in Korea. In addition, data were analysed statistically using factor analysis, t-test, Analysis of Variance(ANOVA), and Spearman's Rank Oder Correlation. The mean ranking for 9 evaluation indicators for printed were as follows: subscribing volumes per departments, degree of use, selection authority, electronic/print bundle, ISI impact factor, Internationality and reputation, costs for subscription, ILL & DDS, space considerations for printed materials. But, 11 evaluation indicators for electronic were as follows : costs for subscription, accessibility, electronic/print bundle, consortia, selection authority, access expandability, subscribing volumes per departments, scholarly features of the university, ISI impact factor, ILL & DDS, internationality and reputations.

Statistical Genetic Studies on the Selection for Grain Characteristics of Malting Barley (Hordeum distichum L.) (맥주맥(Hordeum distichum, L.)의 우량품종 육성에 있어서 입형질의 선발에 관한 통계유전학적 연구)

  • Bong-Ho Lee;In-Gul Lee
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.21 no.1
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    • pp.71-81
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    • 1976
  • This study was carried out to attain the selection information on grain characters of malting barley. Indirect selection, making use of information on grain thickness, seemed to be an effective method for the selection of 1, 000 grain weight, grain hull and grain yield which were directly affected by grain thickness. Grain yield which had a direct effect on grain, meal and protein content seemed to be an effective selection indicator for them, however, a better method is expected upon improvement of indirect effects of hull and grain yield.

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A Study of Urban Festival Guideline of Light Media Considering Personality Type of Preference on Media Arts (성격유형별 미디어 작품선호도 조사를 통한 도시의 빛 미디어 축제 가이드라인에 관한 연구)

  • Kim, Nam-Hyo;Kim, Kyu-Jeong
    • Korean Institute of Interior Design Journal
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    • v.20 no.6
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    • pp.282-290
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    • 2011
  • The public festival has a positive function to produce more pleasure and better life to urban residents on viewpoint of culture marketing. A research of relation between urban festival's media light environmental and personality type of audiences would give a design guide line on selection of festival media contents. The scope of study festival bounds three urban fesitvals from two thousand eight to two thousand ten. The personaliy indicator is used by self-mootioring scale called NEO-PI-R that Synyder, psychologist established in 1987. This indicator divides into five classes - N: Neutroticism, E: Extaversoon, O: Openness, A: Agreeableness, C: Conscientiousness. As a result, Anaysis of urban festival's media light environments considering five personality type of audiences are described, N type prefers the change a lot and low stability. E type prefers three dimensional video and dynamic production with passionate pressure. O type prefers radiates objects to promote the imaginative creatures with speculation. A type prefers contemplation arts with one way direction. C type prefers orderly art layout with accomplishing intention. The statistics datas anaynize ten factors to describe the urban complicated fesitival guide line clearly.

A Study of Junior - Market Consumer Personality Types and their Effect on Clothing Behaviors (주니어 마켓 소비자의 의복행동에 대한 성격 유형적 접근)

  • Moon Young-Suk;Kim Ku-Ja
    • Journal of the Korean Home Economics Association
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    • v.42 no.10 s.200
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    • pp.39-52
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    • 2004
  • This study classified consumer personality types of the junior market and examined their clothing behaviors. The subjects were composed of 283 male and 276 female high-school-age consumers. Data were collected through questionnaires. Personality types were classified by the Myers-Briggs Type Indicator (MBTI). Data were analysed with the frequency, $X^2$, factor analysis, Cronbach's $\alpha$, ANOVA and Duncan tests using Windows SPSS 12. There was a significant difference (P<0.001) between fashion involvement and the 8 classified personality types. In fashion involvement, the extroverted feeling type was significantly higher than the other types. In brand image orientation, the extroverted thinking type was significantly higher than the other types (P<0.05). In fashion ad-orientation, the extroverted feeing type was also significantly higher than the other types. In active or passive complaining behaviors, there was no difference. In the selection criterion for clothes of color and design and style, the extroverted feeling type was also significantly higher than the other groups (P<0.05).

A Geostatistical Study Using Qualitative Information for Tunnel Rock Binary Classification 1. Theory (이분적 터널 암반 분류를 위한 정성적 자료의 지구 통계학적 연구 -1. 이론)

  • 유광호
    • Geotechnical Engineering
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    • v.9 no.3
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    • pp.61-66
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    • 1993
  • In this paper, the incorporation of qualitative(or soft) data, such as outputs of geophysical tests or construction experience which has so far been cumulated, was discussed for rock classsification. Geostatistics wart used for this research since the parameters for the design of tunnels are spatially correlated. In particular, indicator kriging technique, which is one of non -parametric approaches, was used. As a selection criteria for an optimal classification, the cost of errors was adopted and the binary classes were only considered for rock classification. In future, incorporating an appreciable amount of available qualitative data will be necessary in tunnelling projects in which quantitative data are scarce. In this respect, this research is of great significance.

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Vitamin B6 Requirement: Indicators and Factors Affecting (비타민 B6 필요량: 영양상태 판정지표 및 영향요인)

  • Cho, Youn-Ok
    • Journal of Nutrition and Health
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    • v.43 no.3
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    • pp.315-323
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    • 2010
  • The purpose of this study was to establish the selection of indicators for estimating and factors affecting the requirement of vitamin B6. There has been a need to establish the human requirements of vitamin $B_6$ since vitamin $B_6$ is thought to be involved in more than one hundred biochemical reactions as a coenzyme in the metabolism of amino acids, glucose, and lipid, and the synthesis of neurotransmitters. For the review of the literature, this study included from early findings of the sixties to studies of 2009. This study suggests that plasma pyridoxal 5' phosphate (PLP) is the best single indicator of vitamin $B_6$ status for the healthy but not for the non-healthy. Erythrocyte aspartate aminotransferase and alanine aminotransferase activation by PLP as an indirect measure and urinary 4-pyridoxic acid excretion as a direct measure are useful as supporting indicators. Bioavailability, nutrient interaction, physiological need, and chronic diseases may increase the requirement for vitamin $B_6$. However, these effects can not be quantified due to insufficient evidences.