• Title/Summary/Keyword: Multiple Criteria Analysis

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Analysis of Internet Usage Patterns of Health Consumers for Internet Health Information Assessment Criteria (인터넷 건강정보 평가 기준을 위한 건강 소비자의 인터넷 이용행태 분석)

  • Cho, Kyoung-Won;Kam, Sin;Chae, Young-Moon
    • Korean Journal of Health Education and Promotion
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    • v.24 no.2
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    • pp.15-28
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    • 2007
  • Objectives: In this paper, the survey on internet usage patterns of health consumers was conducted and analyzed in order to determine internet health information assessment criteria for providing correct consumer health information on web-sites. Methods: By using a survey questionnaire with 16 questions on general information and 20 questions on internet health information, data were collected from September 16 to 25, 2005 from 476 participants through an internet web site, http://www.hp.go.kr. Frequency analysis, t-test, and multiple regression were used in order to analyze the difference in assessment criteria, factors influencing assessment criteria, factors influencing user satisfaction, etc. Results: General characteristics of the study population were: the persons over age 40 were the smallest age group; women were accounted for 74.2%; and the persons with average income were the largest income group; and the persons with average health status were the largest health group. Most widely used health information were: exercise, disease, and diet, in order. There was significant difference(p=.001) in importance of assessment criteria between the persons in medical institutions and the persons not in medical institutions. There was no significant difference in other assessment criteria. We also found that contents of websites and easy to use were more important factors than elucidation of information providers and information sources including speciality of information in quality assessment criteria of internet health information. Discussion and Conclusion: Results of this paper were compared with the previous studies from the literatures. Contrary to the previous studies in the literature, there was significant difference in importance of assessment criteria between the persons in medical institutions and the persons not in medical institutions. In order to apply the study results to develop health contents for consumer, there is a need for further upgrade the proposed assessment criteria based on expert opinion.

On Study the Safety Diagnosis Assessment of EMU's Carbody (전동차의 구조체 안전진단평가 연구)

  • Chung Joog-Duk;Pyun Jang-Sik;Kim Jeong-Guk;Kim Won-kyung;Hong Yong-Ki
    • Proceedings of the KSR Conference
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    • 2004.06a
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    • pp.322-327
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    • 2004
  • This paper describes the structural analysis result of accident EMU(Electric Multiple Units). Structural analysis of EMU was performed for the criteria of safety assessment. Structural analysis using commercial I-DEAS software provided important information on the stress distribution and load transfer mechanisms as well as the amount of damages during rolling stock crash. Tensile tests were performed on two different types of specimens in order to evaluate the strength changes before and after damages, obtained from plastic deformed area and nondeformed region of the accident EMU. The structural analysis and tensile test results have been used to provide the critical information for the criteria of safety assessment.

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The Effects of Perception of Appearance Importance on Sportswear Benefits Sought, Evaluative Criteria, and Image Preferences of Female Consumers (여성의 외모 중요도 지각이 스포츠웨어 추구혜택, 선택기준, 선호이미지에 미치는 영향)

  • Hwang, Jin-Soak
    • Journal of the Korean Home Economics Association
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    • v.46 no.7
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    • pp.59-69
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    • 2008
  • The purpose of this research was to investigate the effect of appearance perception on sportswear benefits sought, evaluative criteria, and sportswear image preferences. The subjects were 530 female sportswear consumers who were residents in Seoul. The data were analyzed by factor analysis, multiple regression, ANOVA, and Duncan test. The results showed that there were two appearance perception factors: appearance interest and weight interest. Sportswear benefits sought had five factors of ideal figure/sex appeal, status ostentation, individuality/fashion, comfort, and youth-orientation. Sportswear evaluative criteria consisted of function, brand/fashion, and design factors. Sportswear image preferences had four factors: innovative, luxurious, simple, and active. Statistical analyses showed that there were significant effects of appearance perception on sportswear benefits sought, evaluative criteria, and sportswear image preferences. For example, the consumers who were interested in their appearances sought the benefits of ideal figure/sex appeal, status ostentation, individual/fashion in sportswear. Also, they considered brand/fashion and design as important criteria and preferred innovative and luxurious sportswear images.

A Comparative Study of Korean and the US College Female Students′ Clothing Buying Behavior

  • Hwang, Choon-Sup;Kim, Sun-Ah
    • International Journal of Costume and Fashion
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    • v.4
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    • pp.47-61
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    • 2004
  • This study analyzed the buying patterns of American and Korean female college students in terms of criteria for clothing selection; store preferences; criteria for store selection; fashion information sources; expressions of customer dissatisfaction; purchasing frequency and motivations for purchasing clothes. The study was implemented through self-administered questionnaires which were back translated for validity. The samples consisted of 730 female college students majoring in the fields related to clothing and textiles: 310 U.S. and 412 Korean students. Likert scales were used for most measures with 1=never or very unimportant and 5=always or very important. Data were analyzed by factor analysis, analysis of covariance, Duncans multiple comparison, and t-test. Results are as follows: 1) Design factor was the most important criteria in clothing selection with no differences between country groups. There were, however, significant differences for psychological exhibition factors, practical and economic factors. 2) Both groups preferred specialty and department stores, with department stores more popular in Korea. 3) Merchandise was the most important store selection criterion and fashion magazines and self-experience were rated as the most important information sources for the both groups. 4) Korean group expressed their dissatisfaction with and observable problem with a product before purchase more often than U.S. group, but the U.S. group was more vocal about color loss or shrinkage after care procedures. 5) Some clear differences between the two countries emerged. Marketers targeting American consumers should pay more attention to practicality and service; to Korean consumers more symbolic meaning of products.

Probabilistic analysis of seismically isolated elevated liquid storage tank using multi-phase friction bearing

  • Moeindarbari, Hesamaldin;Malekzadeh, Masoud;Taghikhany, Touraj
    • Earthquakes and Structures
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    • v.6 no.1
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    • pp.111-125
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    • 2014
  • Multiple level performance of seismically isolated elevated storage tank isolated with multi-phase friction pendulum bearing is investigated under totally 60 records developed for multiple level seismic hazard analysis (SLE, DBE and MCE). Mathematical formulations involving complex time history analysis have been proposed for analysis of typical storage tank by multi-phase friction pendulum bearing. Multi-phase friction pendulum bearing represent a new generation of adaptive friction isolation system to control super-structure demand in different hazard levels. This isolator incorporates four concave surfaces and three independent pendulum mechanisms. Pendulum stages can be set to address specific response criteria for moderate, severe and very severe events. The advantages of a Triple Pendulum Bearing for seismic isolation of elevated storage tanks are explored. To study seismic performance of isolated elevated storage tank with multi-phase friction pendulum, analytical simulations were performed with different friction coefficients, pendulum radii and slider displacement capacities.

A Study of the Factor on Behavioral Change of the Psychiatric in-patient (정신과 입원환자의 행동변화에 영향을 주는 요소에 관한 연구)

  • 이소우;김태경
    • Journal of Korean Academy of Nursing
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    • v.14 no.2
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    • pp.84-92
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    • 1984
  • This article examined relationships between selected variables, such as demographic background, care, treatment variables, environmental characteristics, and patient's daily behavior and mood change. Relationship were determined between independent variabltherapeutic-rapeutie approach, demographic data, environmental management approach-,and dependent variable-patient's daily behavioral and mood change. 35 patients selected within some criteria in a psychiatric ward, were obserbed during 5 weeks by use of Wyatt's Behavior & Mood Rating Scale ac-cording to the object of the study. At the same time, the frequence of the care and treatment were collected. Criteria for sample selection and independent variables as an influential factor to the patient behavioral change, based on a literature revienw and clinical experiences. Pearson's correlation and multiple regression analysis were used to determine the influfntial factors to the patient behavioral change. Systematic reading (r=.8324), Psychiatrist's individual interview (r=.5764), tranquilizer (r=.3441) and hospitalization processing date (r=.4143) were related with patient's behavioral change. That is these 4 variables can be said to influence to the patient's behavior and mood. A stepwise multiple regression analysis of the effect of the independent varibles of systematic reading, psychintrists individual interview, tranquilizer and hospitalization processing date on the dependent variable, patient's behavioral change was carried out. Systematic reading with on R²of. 69 revealed to be the main influential factor to the patient's behavior and mood change, as the next factor psychiatrist individual interview. A total inclusion of these factors revealed a 73% prediction for the patient's behavior and mood change. But the most influential factor was the interaction of the systematic reading and psychiatrist's individual interview.

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The effect of Shopping Attitude Characteristics on Clothing Purchase Attitudes Utilized to CATV Home Shopping (쇼핑태도특성이 CATV홈쇼핑을 이용한 의복구매태도에 미치는 영향)

  • 이옥희
    • Journal of the Korean Home Economics Association
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    • v.39 no.11
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    • pp.145-160
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    • 2001
  • The purpose of this study was to classify consumer groups according to shopping attitude and analyze buying intention and evaluation criteria of apparel product, opinion to CATV home shopping among consumer groups. The subjects of this study were 270 women living in Chonbuk and Chonnam regardless their experiene in CATV home shopping. For data analysis frequency, percentage, mean,1-test, factor analysis, Cluster Analysis, Duncan Multiple Range test, were conducted. The results were as follows; First, the type of shopping attitude were classified into the following subdivisions: merchandise assortment oriented type, adventure oriented type, indifferent type, economy oriented group, recreational oriented group. Second, shopping attitude were shown to have the significant differences according to education, the structure of family, working in double hamess. Third, the significant differences among the classified shopping attitude groups were found in buying intention, evaluation criteria of apparel product, and opinion to CATV home shopping.

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Improvement Implication of Research Lab Safety based on Multiple Correspondence Analysis of Accident-related Factors (사고 특성요인들의 다중대응분석에 기반한 연구실안전 개선 방안)

  • Hyeon Kyo Lim;Yun Tae Kim
    • Journal of the Korean Society of Safety
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    • v.39 no.1
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    • pp.104-113
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    • 2024
  • Unlike in general manufacturing process, safety management in laboratory-based research area is complicated because the latter generally involves trying untested methods or handling unusual substances in small amounts. Laboratory accidents in South Korea have recently shown an increasing trend. Unfortunately, statistics on such accidents are not officially published by any domestic public agencies. In this study, multivariate analysis was performed on the relationships between variables to develop effective strategies for preventing laboratory accidents. A Cross-Tabulation Analysis of accident-related factors in 179 accident cases revealed that the laboratory type, accident type, and unsafe-act type are all statistically significant, whereas the unsafe condition and management factors differ with the statistical criteria. Furthermore, the results of a Multiple-Correspondence Analysis showed that accidents can be divided largely into three groups having different accident causes and injury types; this confirms the necessity of different strategies to prevent accidents of each type. The findings also reveal differences between the distribution of accident types mentioned in the accident case collection books and actual reported cases. This suggests that an official statistical system administered by a public institution would be necessary for effective prevention of laboratory accidents.

An Exploration on the Use of Data Envelopment Analysis for Product Line Selection

  • Lin, Chun-Yu;Okudan, Gul E.
    • Industrial Engineering and Management Systems
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    • v.8 no.1
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    • pp.47-53
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    • 2009
  • We define product line (or mix) selection problem as selecting a subset of potential product variants that can simultaneously minimize product proliferation and maintain market coverage. Selecting the most efficient product mix is a complex problem, which requires analyses of multiple criteria. This paper proposes a method based on Data Envelopment Analysis (DEA) for product line selection. Data Envelopment Analysis (DEA) is a linear programming based technique commonly used for measuring the relative performance of a group of decision making units with multiple inputs and outputs. Although DEA has been proved to be an effective evaluation tool in many fields, it has not been applied to solve the product line selection problem. In this study, we construct a five-step method that systematically adopts DEA to solve a product line selection problem. We then apply the proposed method to an existing line of staplers to provide quantitative evidence for managers to generate desirable decisions to maximize the company profits while also fulfilling market demands.

The Effect of Fashion Product Consumers' Need for Uniqueness on their Criteria of Clothing Selection and Switching Intentions

  • Park, Soojin;Park, Sookyeong
    • Journal of Fashion Business
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    • v.20 no.3
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    • pp.54-67
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    • 2016
  • The purpose of this study was to investigate the The effect of fashion consumer's need for uniqueness in their clothing purchase behavior and switching intention. A total of 332 cases were included as the subjects of this study and a survey method was used. The data were analyzed by factor analysis, reliability analysis, t-test and multiple regression analysis using the SPSS 22.0 statistical program. The results were as follows. 1. The 3 dimensions (creative choice, unpopular choice, and avoidance of similarity) were extracted from the consumer's need for uniqueness and consumer divided high uniqueness group, middle uniqueness group, low uniqueness group. 2. The 3 factor (esthetic, functional, practical) were extracted from the clothing selection criteria. The three group had a significant difference in clothing selection and switching intention. Aesthetic factor and practical factor were the highest in high uniqueness group. 3. The need for uniqueness has influence on the aesthetic factor and practical factor. The creative choice factor had positive effect on the aesthetic and practical factor, yet unpopular choice factor had negative effect on the practical factor. The need for uniqueness and aesthetic factor has positive influence on brand switching intentions. 4. There was difference in unpopular choices factor by gender. A monthly average expenditure on fashion products had a significant difference in three kind of need for uniqueness. Results of this study provide a basis understand need for uniqueness and their effect on consumer behavior.