• Journal of Korean Institute of Industrial Engineers
• /
• v.22 no.3
• /
• pp.365-375
• /
• 1996

We consider an extension of the multiple choice linear knapsack problem and develop a fast algorithm of order $O(r_{max}n^2)$ by exploiting some new properties, where $r_{max}$ is the largest multiple choice number and n is the total number of variables. The proposed algorithm has convenient structures for the post-optimization in changes of the right-hand-side and multiple choice numbers. A numerical example is presented.

• Journal of Korean Institute of Industrial Engineers
• /
• v.21 no.4
• /
• pp.519-527
• /
• 1995

By finding some new properties, we develop an O($r_{max}n^2$) algorithm for the generalized multiple choice linear knapsack problem where $r_{max}$ is the largest multiple choice number and n is the total number of variables. The proposed algorithm can easily be embedded in a branch-and-bound procedure due to its convenient structure for the post-optimization in changes of the right-hand-side and multiple choice numbers. A numerical example is presented.

• Proceedings of the KIEE Conference
• /
• 2003.07c
• /
• pp.1604-1606
• /
• 2003

In this paper, investigated the core of transformer of high power factor and high effectiveness about design and choice technology. Transformer that use existent general core and material is high no-load loss power. Presented core choice method that can reduce loss. Could do to reduce loss according to choice technology of use material more than about 10 (%). Presented classification and check list by Core's type.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.36 no.8
• /
• pp.837-848
• /
• 2012

This study examines how the overseas residence experience of Korean consumers influences the relationship of global fashion brand knowledge and brand choice confidence. We contrast two kinds of consumer brand knowledge, using the concepts of Alba and Hutchinson's expertise and familiarity. Considering the effect of positive affect on intuitive information processing, the present study investigated the role of positive affect in consumer brand knowledge and brand choice confidence link. The proposed model was tested with structural-equation analysis. The results show that expertise and familiarity effect the positive affect. Positive affect, in turn, influences brand choice confidence. The results indicate that the processes underlying global fashion brand knowledge and brand choice confidence link are different between the consumers with overseas residence experience for more than a year and the consumers without it. The route from expertise to positive affect has a significant impact on the consumers with overseas residence experience but not on the consumers without it; however, the route from familiarity to positive affect and the path from positive affect to brand choice confidence have a greater impact on the consumers without overseas residence experience than the consumers with it. We find that the consumers with overseas residence experience favor expertise in the process underlying global fashion brand knowledge and brand choice confidence link, whereas the consumers without it favor familiarity and affect based thought.

• Journal of the Korean Society of Food Culture
• /
• v.34 no.6
• /
• pp.719-725
• /
• 2019

This study examined the relative importance and the effective utility of fermented milk by consumers. The questionnaire was developed by an in-depth interview and literature review and was surveyed on-line. Statistical analysis was carried out descriptive analysis, ANOVA, paired t-test, and conjoint analysis using the SPSS package. First, an analysis of the consumption status of fermented milk found that the consumption frequency was 1-2 times/week (36.2%), 3-4 times/week (26.5%). The product choice attributes of fermented milk were found to be the same with 'taste' (3.93) and 'manufacturing date/expired date' (3.92), rated the highest, followed in order by, 'sanitary quality' (3.82), 'origin of ingredient' (3.81). Comparative analysis of the importance and satisfaction level of the choice attributes of fermented milk showed that the choice attributes with lower satisfaction compared to importance were 'taste', 'nutrients', 'manufacturing data/expired date', 'sanitation quality', 'price', 'manufacturing method' and 'certification of quality' (p<0.001, p<0.01). 'Price' and 'certification of quality' were the choice attributes of fermented milk classified as 'Focus Here' because of its high importance and low satisfaction. The preferred combination of relative importance in choice attributes of the fermented milk was 'domestic resource', 'Eat with spoon', and 'none additives'. Therefore, it is believed that sales will increase if dairy companies can improve the 'price' and 'certification of quality'. In addition, the use of domestic ingredients in the development of new fermented milk products in the future could be an important marketing factor in consumer choice.

• Journal of the Korean Society of Food Culture
• /
• v.30 no.3
• /
• pp.333-344
• /
• 2015

This study aimed to identify the effects of health-related menu choice attributes on customer behavioral intentions at well-being restaurants and analyze the moderating effects of food involvement and trust, which can influence customer preference and their intentions to visit well-being restaurants. This study designed a survey, and 351 respondents who have eaten at well-being restaurants completed the questionnaire. Exploratory factor analyses were conducted to identify underlying dimensions related to health-related menu choice attributes, food involvement, and customer behavioral intentions toward well-being restaurants. The three factors regarding health-related menu choice attributes and the three factors related to food involvement were identified. In order to test the relationships between health-related menu choice attributes and behavioral intentions as well as to investigate the moderating effects of food involvement and trust, hierarchical regression analyses were conducted. Results indicated that the three factors of health-related menu choice attributes were significantly and positively related to behavioral intentions. Among food involvement factors, dining environment and cooking were significantly related to behavioral intentions toward well-being restaurants. Trust had a significant influence on behavioral intentions. Results showed that food involvement and trust could moderate the effects of health-related menu choice attributes on behavioral intentions toward well-being restaurants.

• Journal of Korea Port Economic Association
• /
• v.32 no.4
• /
• pp.183-192
• /
• 2016

The purpose of this study is to analyze the choice behavior of the mode of transportation for travel from Korea to China. Discrete choice analysis is utilized to establish the factors that affect travelers' choice and to quantify the importance of these factors in transportation mode choices. The proposed choice models were constructed by using stated-preference (SP) data obtained from Chungcheongnam-do. This study also examined different choice behavior in order to capture any previously unobserved differences in the residence area. Results showed that the access time and frequency attributes are the most significant factors, while the travel time attributes are the least significant factors for travelers' choice behaviour. The insights of the results described in this research provide some practical suggestions to transportation providers for planning and strategic management endeavors in the future.

• Journal of the East Asian Society of Dietary Life
• /
• v.23 no.2
• /
• pp.119-132
• /
• 2013

The aim of this study was to identify sushi choices underlying food-related lifestyle and to study the sushi attribute. The Food Choice Questionnaire (FCQ), the most popular tool for lifestyle research, which measures the relative importance of nine factors important in food choice, and food-related lifestyle was administered to 200 Americans (over 20 years of age) residing in Korea. From an analysis of food-related lifestyle through factor analysis, four factors emerged: health, taste, economy, and convenience. The Food Choice Questionnaire (FCQ) structure was verified using factor analysis, and eight factors were found: mood, natural content, health, sensory appeal, convenience, weight control, familiarity and price. These data are important in demonstrating the different motives underlying sushi choice. Moreover, the results suggest that an American's food-related lifestyle is considerably different in consumer behavior and sushi choice. Further research is needed to test our hypotheses.

• Journal of Digital Convergence
• /
• v.15 no.12
• /
• pp.655-660
• /
• 2017

The purpose of this study is to investigate the effect of College Students' Ego Status on career aspiration and job choice value. In order to investigate this questionnaire, 120 students from the Tourism Management Department of S University in Gyeonggi-do were surveyed. The questionnaire was reconstructed on the basis of previous studies and total of 45 items. Survey items of career choice value were 7 items including leadership desire, professionalism, direct improvement, social contribution, intellectual value calculation, vacation guarantee, salary Level. As a result of the study, it was found that career aspiration and job choice value were highly correlated with each other and that egogram structure showed a high correlation with adult ego status. Also, the higher the career aspiration and the higher the adult ego status, the higher the value of job choice. Based on the above results, the analysis of the ego-status profile based on the transactional analysis theory can be used as a very useful basic data for exploring the students' career decision, career choice and job choice, I think it will help me to understand and find an alternative career path.

• Journal of the Korean Geographical Society
• /
• v.44 no.3
• /
• pp.323-338
• /
• 2009

This study analyzes the changes in commuter's mode choice between 2002 and 2006 according to the implement of the integrated public transit system in Seoul metropolitan city. Especially this study focuses on differential changes in a transit modal choice among socioeconomic status, trip purpose and spatial characteristics of origin and destination. The probability of public transit use against automobile is modeled as a function of socioeconomic variables, spatial characteristics of origin and destination and the utility of the commuter's mode. The results from conditional logit model analyses suggest that people with lower income show the larger changes in the ratio of public transit choice between 2002-06. Also both higher density, more accessible to public transit and more diverse land uses in residence zone and in work place generally increase the ratio of public transit choice between 2002-06. Car and subway have the most strong alternative relation in commuter's mode choice. The findings give an important implication that the integrated public transit system has differential impacts on commuter's mode choice in Seoul.