• Title/Summary/Keyword: Statistical Correspondence

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A Study on the Shopping Orientation, Related to the Cognitive Age and the Types of Lifestyle of the Female Consumers in the Elderly Generation (Part2) (뉴실버 여성소비자 지각연령과 라이프스타일에 따른 의복쇼핑성향 연구 (제2보))

  • Kim, Jung-Sil;Lee, Sun-Jae
    • Journal of the Korean Society of Clothing and Textiles
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    • v.32 no.11
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    • pp.1726-1738
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    • 2008
  • This study researches age of discretion and lifestyles for aged women consumers and examines their social and psychologically recognized age of discretion and the difference in shopping orientation on fashion. Also it is purposed to support implications for marketing strategy on fashion market for the aged. A survey was carried out regarding the consumers of the new elderly generation aged 55 and above. 561 respondents were surveyed, residing in Seoul and Metropolitan areas. Factor analysis, Cronbach's ${\alpha}$, K-average community and multivariate analysis, multi-recurrence and crossing analysis($X^2$ verified) were used for statistical analysis. In conclusion, first, people in their 70s to 80s perceive their age 20 to 30 years younger than their real age. Second, appearance-oriented and high technology-oriented were the most highlighted lifestyles as to the study of the vital statistical, related to the lifestyle in correspondence to the real-age and the cognitive age. Third, people who feel older than they actually are in terms of shopping orientation were less likely to shop depending on their mood. Throughout the results, there is no doubt that people in the elderly generation is a main target within marketing trends in the elderly generation industry. A research based on comparison between the male and the female consumers in the elderly generation is considered to be very meaningful.

A Study on the Level of Hygiene Practices and Strategy in the Contract Foodservice Establishments (위탁 급식 점포의 특성에 따른 위생 관리 수행 수준 및 대응 전략)

  • Park, Ju-Yeon;Yang, Hye-Won;Park, Hong-Hyun
    • Journal of the East Asian Society of Dietary Life
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    • v.17 no.4
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    • pp.589-596
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    • 2007
  • The level of hygiene practices varies depending on a variety of factors. The purpose of this study was to evaluate the level of hygiene practices performed in the contract foodservice establishments based on several variables, and to also determine the possible effects of each variable on the performance level of hygiene practices. We surveyed 215 contract foodservice establishments, excluding school facilities, managed by a large-scale contract foodservice company. The survey used a formulated sanitary checklist to evaluate the level of hygiene practices performed in the foodservice establishments. The sanitary checklist consisted of a total of 52 items in all 6 categories including personal sanitation and process control. The collected data underwent a series of analyses such as frequency analysis, ANOVA, and correspondence analysis of means using SPSS. from the results, we found significant differences among groups in categories such as the existence of a person in charge and types of business. A higher foodstuff cost had a tendency to correlate with a higher performance level for sanitary maintenance, but there was no significance on a statistical level.

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Object Tracking using Adaptive Template Matching

  • Chantara, Wisarut;Mun, Ji-Hun;Shin, Dong-Won;Ho, Yo-Sung
    • IEIE Transactions on Smart Processing and Computing
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    • v.4 no.1
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    • pp.1-9
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    • 2015
  • Template matching is used for many applications in image processing. One of the most researched topics is object tracking. Normalized Cross Correlation (NCC) is the basic statistical approach to match images. NCC is used for template matching or pattern recognition. A template can be considered from a reference image, and an image from a scene can be considered as a source image. The objective is to establish the correspondence between the reference and source images. The matching gives a measure of the degree of similarity between the image and the template. A problem with NCC is its high computational cost and occasional mismatching. To deal with this problem, this paper presents an algorithm based on the Sum of Squared Difference (SSD) and an adaptive template matching to enhance the quality of the template matching in object tracking. The SSD provides low computational cost, while the adaptive template matching increases the accuracy matching. The experimental results showed that the proposed algorithm is quite efficient for image matching. The effectiveness of this method is demonstrated by several situations in the results section.

Analysis of Trace Impurities in The Bulk $H_2$ and He Gases by a Cold Concentration Method (저온 농축법에 의한 수소와 헬륨 중의 미량가스 분석)

  • Lee, Taeck Hong;Park, Doo Seon;Son, Moo Ryong
    • Journal of the Korean Chemical Society
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    • v.42 no.5
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    • pp.526-530
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    • 1998
  • Analysis of trace impurities in the gases has been very important with the development of semi-conductor related industry. Particularly, the contamination of the gas handling systems in a semi-conductor plant by the air has been a trouble to the manufacturers. Thus, the analysis of the air components in the system has been a task to the analysts. In this study, we report the analysis data with a expanded uncertainty for the trace impurities of nitrogen and argon in the bulk helium and hydrogen. All data show a good correspondence, exhibiting reliable statistical error ranges.

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Shrinkage Solution of Quantification Method III (수량화 제3 방법의 축소 해)

  • Huh Myung-Hoe;Lee Yong-Goo
    • The Korean Journal of Applied Statistics
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    • v.19 no.2
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    • pp.331-338
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    • 2006
  • Quantification method III is designed by C. Hayashi as visualizing technique for two-way cross-classified tables. Specially in Japan, its usefulness is timely proven in social and marketing surveys. In several instances, relatively large quantification scores are assigned to low-frequency categories. Thus, they lead to unreliable data interpretation. The aim of this study is to develop stable solution to overcome such traits of quantification method III. The solution is of shrinkage type induced by small perturbations and is applied to a multiple response data obtained in a Korean social survey.

Analysis of Trace Impurities in The Bulk Gases by a Cold Concentration Method (저온 농축법에 의한 극미량 성분 가스분석)

  • Lee Taeck-Hong;Hong So Young;Jung Woo Chan;Kim Young Rak;Suh Jung Woo;Han Ju Tack;Park Doo Seon;Son Moo Ryong
    • 한국가스학회:학술대회논문집
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    • 1997.09a
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    • pp.260-265
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    • 1997
  • Analysis of trace impurities in the bulk .gas has been very important with the development of semi-conductor related industry. In the paper, we reported the analysis of the trace impurites of carbon monoxide and methane in the bulk helium and hydrogen by the GC-TCD with a cold nitrogen trap. We compared these results by the paraallel analysis. All data showed a good correspondence, showing reliable statistical error ranges.

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Statistical Analysis of Pc1 Pulsations Observed by a BOH Magnetometer

  • Kim, Jiwoo;Hwang, Junga;Kim, Hyangpyo;Yi, Yu
    • Journal of Astronomy and Space Sciences
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    • v.37 no.1
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    • pp.19-27
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    • 2020
  • Pc1 pulsations are important to consider for the interpretation of wave-particle interactions in the Earth's magnetosphere. In fact, the wave properties of these pulsations change dynamically when they propagate from the source region in the space to the ground. A detailed study of the wave features can help understanding their time evolution mechanisms. In this study, we statistically analyzed Pc1 pulsations observed by a Bohyunsan (BOH) magneto-impedance (MI) sensor located in Korea (L = 1.3) for ~one solar cycle (November 2009-August 2018). In particular, we investigated the temporal occurrence ratio of Pc1 pulsations (considering seasonal, diurnal, and annual variations in the solar cycle), their wave properties (e.g., duration, peak frequency, and bandwidth), and their relationship with geomagnetic activities by considering the Kp and Dst indices in correspondence of the Pc1 pulsation events. We found that the Pc1 waves frequently occurred in March in the dawn (1-3 magnetic local time (MLT)) sector, during the declining phase of the solar cycle. They generally continued for 2-5 minutes, reaching a peak frequency of ~0.9 Hz. Finally, most of the pulsations have strong dependence on the geomagnetic storm and observed during the early recovery phase of the geomagnetic storm.

Development of Computerized Densitometry for the Quantitative Analysis of Diffuse Retinal Nerve Fiber Layer Atrophy

  • Lee, J.S.;Park, K.S.;Yi, K.;Kim, D.M.
    • Proceedings of the KOSOMBE Conference
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    • v.1997 no.11
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    • pp.146-149
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    • 1997
  • Computerized densitometry was developed or the quantitative measurement of diffuse retinal nerve fiber layer (RNFL) atrophy and intra- and inter-operator reliability and clinical validity of this system were evaluated. Vertical diameter, center of the optic disc, and peripapillary circles which had radii of 1.5 and 2.5 times that of the optic disc were user-interactively determined in digitized RNFL photograph and density profile along each circle was measured and normalized. The areas under the normalized density profiles of the superior and the inferior segments in both circle were used or the study of RNFL. To determine the variability and correspondence in the measurements of density variations, 21 RNFL photographs of glaucoma patients which showed varying degrees of atrophy underwent computerized densitometry by two operators on two separate occasions. Coefficient of variation in the densitometric measurements was $1.2{\sim}5.4%$. Intra- and inter-operator reliabilities were excellent. The correlations between the densitometric values and mean deviations of Humphrey C30-2 visual field showed statistical significance. Computerized densitometry of RNFL photographs was useful in the objective and quantitative assessment of diffuse RNFL atrophy.

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The Study on the Impact of the Leadership on the Trust and Company's Performance (리더십이 신뢰와 경영성과에 미치는 영향에 관한 연구)

  • Han Jin-Hwan
    • The Journal of the Korea Contents Association
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    • v.5 no.6
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    • pp.283-292
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    • 2005
  • The purpose of this paper is to explore the concept of the fitness and the way of the inspection in the Leadership study. Although the study of the fitness is recently increased, however, the concept recognition and the positive analysis on the inspection of the fitness isn't in the saddle and by inspecting after the operationalization, the theory and the result don't often correspond. So, This study is to help the following study and provide the conception and the problem of the analysis on the centering the fitness of the moderator and the mediation.

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A Study on Association between Type of E-commerce and Demographic variables

  • JEONG, Dong-Bin
    • East Asian Journal of Business Economics (EAJBE)
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    • v.9 no.3
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    • pp.83-100
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    • 2021
  • Purpose - The purpose of this study is to comprehensively understand the recent status of domestic e-commerce market and provide useful information for the revitalization of domestic on-line economy. This study looks over the association between type of e-commerce and demographic variables for each purchase ordering and sales order business. The demographics under consideration is administrative district, occupation and business organization type and type of e-commerce is B2B, B2C and B2G to deal with. Research design, data, and methodology - From January 2017 to December 2017, about 14000 samples are extracted from all businesses with experience in purchasing or selling products or services through e-commerce. The association between the two categorical variables considered by using two major statistical techniques such as chi-square test and correspondence analysis can be quantitatively and visually detected. Result - This study shows the association between the type of e-commerce with the administrative district and the occupation is completely different, but B2B and B2C are identical for organization type, with respect to both purchase and sales orders. Conclusion - The association between the type of e-commerce with the administrative district and the occupation is completely different, but B2B and B2C are identical for organization type, with respect to both purchase and sales orders.