• Title/Summary/Keyword: Multidimensional analysis

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Dynamic Reconfiguration of Qis Visualization Spreadsheet (동적 재구성이 가능한 Qis Visualization Spreadsheet)

  • Jee, Sung-Hyun;Kwon, Young-Hee;Youn, Kil-Joong
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.42 no.5
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    • pp.79-86
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    • 2005
  • The Qis visualizational spreadsheet environment is shown to be extremely effective in supporting the organized visualization of multi-dimensional data sets. The Qis consists of the reconfigurative 2D arrangement of spreadsheet elements at run time and each spreadsheet element has a novel framestack. As the feature, it supports 3D data structure of each element on the Qis. It enables the visualization spreadsheet to effectively manage, rapidly organize, and compactly encapsulate multi-dimensional data sets for visualization. Using several experiments with scientific users, the Qis has been demonstrated to be a highly interactive visual browsing tool for the analysis of multidimensional data, displaying 2D and 3D graphics, and rendering in each frame of the spreadsheet.

A Study on the Measures on the Decrease of the Traffic Accidents Based on the Attitude Changes of Intra-City Bus Drivers Following the Implementation Semi-Public Management System of Intra-City Bus (시내버스 준공영제 시행에 따른 시내버스 운전자의 운전태도 변화에 근거한 교통사고 저감대책 방안에 관한 연구)

  • Choi, Jae Won;Jung, Heon Young;Jang, Seok Yong;Ko, Sang Seon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.31 no.1D
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    • pp.33-42
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    • 2011
  • The types of the accidents caused by intra-city buses and the changing tendencies of driving attitudes are analyzed before-and-after semi-public management system of intra-city bus system is implemented. On the basis of analysis, the measures on the decrease of traffic accidents are considered and the results are as follows. First, it showed that the traffic accidents decreased generally as a result of definition of the progresses of traffic accidents of intra-city buses before-and-after the system is implemented and with the passing of time after the system was operated. Second, the factors which influence the decrease of traffic offenses before-and-after semi-public management system of intra-city bus are the decease of violation, safe driving duty and the job security. Also the cause which mostly influence to the decrease of traffic accidents is defined. Finally, the measures of decrease of traffic accidents are arranged and proposed as a result of PROXSCAL method.

Construction of the Digital Archive System from the Records of Westerners Who Stayed in Korea during the Enlightenment Period of Chosun (개화기 조선 체류 서양인 기록물의 디지털 아카이브 시스템 구축)

  • Chung, Heesun;Kim, Heesoon;Song, Hyun-Sook;Lee, Myeong-Hee
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.27 no.4
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    • pp.229-249
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    • 2016
  • This study was conducted to create a digital archive for local cultural contents compiled from the records of westerners who stayed in Korea during the Enlightenment Period of Chosun. The compiled information were gathered from 22 records, and 10 main subjects, 40 sub-subjects and 239 mini-subjects were derived through the subject classification scheme. Item analysis was conducted through 38 metadata and input data types were classified and databased in Excel. Finally, a web-based digital archiving system was developed for searching and providing information through various access points. Suggestions for future research were made to expand archive contents through continuous excavation of westerners' records, to build an integrated information system of Korean digital archives incorporating individual archive systems, to develop standardization of classification schemes and a multidimensional classification system considering facet structure in cultural heritage areas, to keep consistency of contents through standardization of metadata format, and to build ontology using semantic search functions and data mining functions.

Enhancing the corporate image through social media: An approach based on multi-dimensional scaling (다차원척도법에 의한 기업이미지 제고를 위한 소셜미디어 활용방안)

  • Kim, Suhyun;Lee, Hanjun;Suh, Yongmoo;Han, Jinyoung
    • Journal of the Korean Data and Information Science Society
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    • v.24 no.3
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    • pp.427-436
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    • 2013
  • Social media is drawing attention among companies for its potential as a marketing tool. There are many types of social media and their characteristics are varied, and thus choosing the appropriate social media considering the purpose of the company is important. In this paper, we conduct comparative analysis on the popular social media such as Facebook, Twitter, Naver blog, Youtube, Cyworld and Me2day using multidimensional scaling method. The result shows that there are differences in the effectiveness of enhancing diverse dimensions of corporate image among social media. This result can be used in developing social media based marketing strategy.

A Perceptual Mapping of Coffee Shop Brands and Preference Attributes (선택속성에 따른 에스프레소 커피 전문점의 포지셔닝에 관한 연구)

  • Kim, Ki-Ran;Kim, Dong-Jin
    • Culinary science and hospitality research
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    • v.16 no.3
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    • pp.66-75
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    • 2010
  • The purpose of this study is to examine the competitive positions of five coffee shop brands(i.e., Starbucks, Coffee Bean & Tea Leaf, Hollys, Angelinus, and Tom N Toms) in Korea. For this study, data were gathered from the residents of Seoul, Busan and Daegu from September 22 to October 11, 2009. In order to accomplish the purpose of the study, MDS was utilized to investigate differences in customer's perception of the position of five coffee shop brands. The results of positioning analysis showed that there was competitive relationship between Hollys and Angelinus. Also, the positioning of Tom N Toms was close to Hollys and Angelinus. However, Starbucks, the market leader, and Coffee Bean & Tea Leaf, the market follower, were their own identity in their brands. According to the result of the study, it will be helpful for the marketers who need to establish a marketing strategy. Future studies could include other various variables and more thorough investigation into them.

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A Study on the Positioning Strategies of Arboretum (수목원의 포지셔닝 전략에 관한 연구)

  • Kang, Shin-Koo;Moon, Jong-Tae;Han, Sang-Yoel
    • Journal of Korean Society of Forest Science
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    • v.98 no.6
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    • pp.703-711
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    • 2009
  • This study was conducted to suggest to establish more effective and differential management strategy of arboretum, through the analysis and comparison between arboretum and representative forest recreational sites. The data was collected through questionnaire at the six fields of forest recreational sites in Daegu and Gyeongsangbuk-do, 447 people who visited these forest recreational sites took part in the questionnaire. As the result of this research, arboretum was positively evaluated by the six strengths from the participants; natural area, experiences and observation activity, conservation of natural environment, promotion of health, reasonable charge of use and a lot of things to see and do. But there is the need for arboretum to develop characteristic rest culture and raise efficiency because arboretum is in keen competition with recreation forests and national parks by several characteristics.

A Comparative Study between Rheumatoid Arthritis Patients and Healthy Persons on Activities of Daily Living, Fatigue and Depression (류마티스 관절염환자와 일반인의 일상활동, 피로 및 우울에 관한 비교연구)

  • Cho, Hyea-Myung;Park, Jeong-Sook;Park, Myung-Hwa
    • Korean Journal of Adult Nursing
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    • v.13 no.2
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    • pp.247-261
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    • 2001
  • This study was conducted to compare activities of daily living, fatigue and depression between rheumatoid arthritis patients and healthy persons. The subjects consisted of 53 rheumatoid arthritis patients and 53 healthy persons at a university hospital in Daegu City. Data were collected by means of structured interviews with questionnaires from July 20, 1999 to August 25, 1999. The instrument used in this study were the activities of daily living scale developed by Katz et al. (1970) and Barthel(1973), Multidimensional Assessment of Fatigue by Belza et al.(1995) and CES-D(Center for Epidemiologic Studies-Depression) scale. Analysis of data was done by use of descriptive statistics, Pearson Correlation, Chi-square test, t-test, ANOVA, MANCOVA and Duncan with the SPSS program. The major findings are summarized as follows : 1. The first hypothesis that the rheumatoid arthritis patients will have a lower degree of activities of daily living than the healthy persons was supported (F=4.584, p=.035). 2. The second hypothesis that the rheumatoid arthritis patient will have a higher degree of fatigue than the healthy persons was supported (F=7.799, p=.006). 3. The third hypothesis that the rheumatoid arthritis patients will have a higher degree of depression than the healthy persons was supported (F=4.768, p=.031). With the above results, it can be concluded that rheumatoid arthritis patients had a lower degree of activities of daily living and a higher degree of fatigue and depression than the healthy persons. Therefore, by providing appropriate nursing intervention, activities of daily living would be much better and fatigue and depression would be alleviated.

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Seasonal Variation of Mesozooplankton Communities in the Semi-enclosed Muan Bay, Korea (반 폐쇄된 무안만 중형동물플랑크톤 군집의 계절 변동)

  • Moon, Seong-Yong;Seo, Min-Ho;Shin, Yong-Sik;Soh, Ho-Young
    • Ocean and Polar Research
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    • v.34 no.1
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    • pp.1-18
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    • 2012
  • We investigated seasonal changes in the mesozooplankton community structure in November 2006 and February, May, and August 2007 at 12 stations in the semi-enclosed Muan Bay, Korea. Forty taxa were sampled, with an average abundance ranging from 1,459 to 20,078 indiv. $m^{-3}$; the highest abundance was detected in August 2007, and the lowest in February 2007. Acartia omorii, A. hudsonica, A. ohtsukai, Bestiolina coreana, Calanopia sp., Paracalanus parvus s. l., Cirripedia larvae, Decapoda larvae, and Gastropoda larvae were the most abundant taxa detected. The species diversity of the mesozooplankton was high around the inner regions in August 2007 but it was relatively low in November 2006. Non-metric multidimensional scaling (nMDS) revealed significant differences in the structure of mesozooplankton community among the seasons. Canonical correspondence analysis (CCA), performed to examine the relationships among dominant taxa, stations, and environmental variables, showed that most species of copepods were positively correlated with temperature, salinity, chlorophyll a, and COD concentration. Our results suggested that the mesozooplankton community structure observed in this study might be affected partly by the seasonal changes in environmental variables, such as the status of the sluice gates (i.e., open or closed) and the in situ production of resting eggs by major copepods.

A Study on the Relationship Between Health Protective Behavior and Health Locus of Control (예방적 건강행위와 건강통제위 성격 성향과의 관계에 대한 연구)

  • 김정희
    • Journal of Korean Academy of Nursing
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    • v.15 no.2
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    • pp.49-61
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    • 1985
  • It is assumed that the more society advances in its complexity and development, the more people pay attention to their health and accordingly the more people tend to practice health protective behavior. Most of human behavior is based on social inter-actions. The concept in Locus of Control has been developed from social learning theory to help better understanding the social phenomena affecting human behavior. Multidimensional Health Locus of Control is consisted of three dimensions: Internal, Powerful Others and Chance. This study was conducted to find out the health protective behavior patterns of the people and its relationship with Health Locus of Control as an influencing factor to their behavior. All the subjects in this study were the ones of the bank employees in Seoul, Among the total of 1,430 bank employees, 761 were chosen as a sampled subjects. Questionnair survey was conducted from March 4 to March 13, 1985. Research instruments used in this study were two kinds, one was the Health Locus of Control Scale developed by Wallston & Wallston and the other was the Measuring Scale for Health Protective Behavior developed by the investigator. Analysis of data was done by using Descriptive Statistics, X²-test, t-test, ANOVA, Pearson's correlation coefficient. The results of this study are summarized as follows: The mean score of Internal was 24.1, Powerful others was 19.7 and Chance was 15.3 out of maximum range of 6-30 respectively. The mean score of Health Protective Behavior Scale fell as 53.2 out of a maximum range of 18-90. Internals were more likely closely related with sex, educational levels and religion, Powerful others were related with age, educational levels and the number of family members. Chances were related with edu cational levels. The older the subjects were, the more concerned about their health. They tended to practice more favorable health protective behaviors. Furthermore, married people tended to fay more attention to their health than single individuals. Also, the number of family members and religion affected their attitudes in the health protective behavior patterns. Internals and Powerful Others were related with health protective behaviors. If one believes he can do something about his health and others play a significant role on his health, he is more apt protective patterns more suitable for health and actually shows that he is better off.

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Development and a Psychometric Evaluation of Cardiovascular Disease-Specific Quality of Life Scale for Koreans (한국 심혈관질환 특이형 삶의 질 측정도구 개발 및 평가)

  • Lee, Eun-Hyun;Tahk, Seong-Jai;Shin, Jun-Han;Lee, Young-Whee;Song, Rha-Yun
    • Journal of Korean Academy of Nursing
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    • v.37 no.3
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    • pp.313-323
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    • 2007
  • Purpose: Health-related quality of life (HRQOL) in patients with cardiovascular disease in Korea has rarely been studied, mostly due to the lack of a psychometrically validated disease-specific instrument. The purpose of this study was to develop and validate a cardiovascular specific-HRQOL questionnaire (CD-QOL). Method: The CD-QOL was developed and validated as follows; item generation, pilot study, and psychometric tests. Patients were recruited from three-university hospitals. The patients were asked to complete the preliminary questionnaire comprising the content-validated items, SF-36, and CES-D. The NYHA and KASI classifications were used to classify the functional performance of the patients. The data was analyzed using correlation, factor analysis, multidimensional scaling, multitrait/multi-item matrix, ANOVA, and Cronbach's alpha. Result: Preliminarily, thirty-nine items were generated. Factor analysisextracted a five-factor solution with a total of twenty-two items. One item was deleted based upon the MDS. The remaining items were moderately correlated with the subscales of the SF-36 and associated with depression measured with the CES-D. The mean scores of patients in NYHA and KASI class I were significantly higher than those in NYHA and KASI class II or/and III, which suggested patients with better functional performance were likely to have a better HRQOL. Cronbach's alphas of the total and subscales were all greater than 0.70. Conclusion: The CD-QOL is a easily applicable instrument with excellent psychometric properties of content, criterion, factorial, convergent, and known-groups validity, and internal consistency reliability in Korean patients with cardiovascular disease.