• Journal of the Korean Data and Information Science Society
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• v.24 no.4
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• pp.803-813
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• 2013

The purchase of items in e-commerce is a little bit different from that of items in off-line. The recommendation of items in off-line is conducted by salespersons' recommendation, However, the item recommendation in e-commerce cannot be recommended by salespersons, and so different types of methods can be recommended in e-commerce. Recommender system is a method which recommends items in e-commerce. Preferences of customers who want to purchase new items can be predicted by the preferences of customers purchasing existing items. In the recommender system, the items with estimated high preferences can be recommended to customers. The algorithm of collaborative filtering is used in recommender system of e-commerce, and the list of recommended items is made by estimated values, and then the list is recommended to customers. The dataset used in this research are 100k dataset and 1 million dataset in Movielens dataset. Similar results in two dataset are deducted for generalization. To suggest a new algorithm, distribution features of estimated values are analyzed by the existing algorithm and transformed algorithm. In addition, respondent'distribution features are analyzed respectively. To improve the collaborative filtering algorithm in neighborhood recommender system, a new algorithm method is suggested on the basis of existing algorithm and transformed algorithm.

• Journal of the Korean Society of Clothing and Textiles
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• v.29 no.5 s.142
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• pp.607-616
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• 2005

The purpose of this study was to investigate service quality of department stores located in Daegu and to examine the effects of service quality on customer satisfaction and store patronage. Data(N=285) were analyzed, using factor analysis, 1-test, ANOVA and regression analysis. The results suggest that service quality was divided into 3 dimensions (reliability, tangibles, empathy) and that service quality enhanced customer satisfaction and store patronage. Specifically, tangibles had a positive effect on customer satisfaction, and reliability had a positive effect on store patronage. Also, personal characteristics were related to service quality, customer satisfaction and store patronage. For instance, male customers evaluated tangibles of service quality more positively than female customers. The married evaluated service quality, customer satisfaction and store patronage more positively than the single. While people aged above 36 yews evaluated reliability and empathy of service quality more positively than people aged below 35 years, people in their 20s evaluated tangibles more positively than people in their 30s. People in a higher income bracket (i. e., \301,000,000- \400,000,000) evaluated reliability and empathy of service quality and store patronage most positively, while people in a lower bracket (i. e., below \200,000,000) evaluated most negatively.

• Journal of Korea Game Society
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• v.9 no.4
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• pp.57-66
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• 2009

A quest system is one of the important parts in the MMORPG (Massive Multiplayer Online Role Playing Game) contents. Because of its complexity in combining various content components, quest reward design belongs to a complicated work in estimating quest reward levels correctly in the initial development stage. In this paper, we suggest a new quest reward design technique by considering optimal quest play paths. We model a quest reward problem as the TSP (Traveling Salesman Problem) and solve that by adopting genetic algorithms. With our system, game designers easily estimate the optimal quest play path and it can be useful in reducing the trial-errors in the initial quest design process.

• Journal of the Korean Society of Clothing and Textiles
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• v.34 no.8
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• pp.1290-1302
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• 2010

This study examines the effects of competency and service orientation of imported fashion luxury brands salespersons on the organizational commitment and service delivery level. Questionnaire data from 162 salespersons of imported fashion luxury brands were analyzed. The results were summarized as follows. First, self-management ability, professional executive ability, and the friendly attitude of six competency factors had significant effects on organizational commitment. Second, professional executive ability, self-management ability, and friendly attitude of the six competency factors had significant effects on service delivery level. Third, all factors of service orientation had significant influences on organizational commitment. Finally, special treatment/awareness of needs and instant response/communicative skill of three service orientation factors had significant influences on the service delivery level.

• Fashion & Textile Research Journal
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• v.14 no.2
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• pp.230-241
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• 2012

The purpose of this study was to examine the effect of power sources of department store and fashion company, and salesperson's job consciousness on job satisfaction in the middle management system of department store. Questionnaire data from 193 salespeople in the middle management of department store were analyzed by reliability analysis, factor analysis, correlation analysis, multiple regression analysis, hierarchical regression analysis. The results of this study were as follows: First, coercive power, informational and expert power, and referent power of department store had significant effects on job satisfaction. The coercive power of department store had a negative influence on job satisfaction, while informational and expert power, and referent power of department store had a positive influence on job satisfaction. Second, referent power, expert power, reward power, coercive power of fashion company had a positive influence on job satisfaction. Third, referent power of department store had a greater influence on job satisfaction than other power sources. Fourth, job commitment and pride, prospect awareness had a positive influence on job satisfaction, while professional self-awareness had no effect on job satisfaction.

• Journal of Fashion Business
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• v.20 no.1
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• pp.69-81
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• 2016

In this study investigated the effect of emotional labor, emotional exhaustion, and depression on the job-related attitudes. Sample subjects used in this study were salespeople of a fashion shop in Jeollabukdo and Jeollanamdo. Questionnaire data from 160 fashion shop salespeople were analyzed through a reliability analysis, factor analysis, and multiple regression analysis. The results of the study were as follows. First, emotional labor of salespeople was divided into 2 factors, surface acting and deep acting. Second, emotional labor had a significant influence on the emotional exhaustion and depression. Third, the surface acting of emotional labor had a positive influence on the emotional exhaustion and depression; whereas, the deep acting of emotional labor had a negative influence on the emotional exhaustion and depression. Fourth, the surface acting of emotional labor, emotional exhaustion, and depression had a negative influence on job involvement; in addition, the deep acting of emotional labor had a positive influence on job involvement. Fifth, the surface acting of emotional labor, emotional exhaustion, and depression had a positive influence on turnover intention; in addition, the deep acting of emotional labor had a negative influence on turnover intention.

• Journal of Information Technology Services
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• v.19 no.3
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• pp.75-87
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• 2020

This study empirically investigates the design factors that could engender positive impacts on consumers' user experiences with respect to trust, attitude, and intent to purchase a product promoted in the virtual reality (VR) e-commerce environment. Guided by previous literature, we specifically test the role of schema congruity due to the design of the space and virtual agent on trust, attitude, and purchase intention in the context of VR e-commerce. To test the effect of the congruency between user's schema and virtual environment design on user intentions, a 2 × 2 mixed ANOVA design experiment was conducted with place creativity (Low vs. High) as a within factor and workplace attire (Casual vs. Formal) as a between factor. The result showed support for the effect of schema congruity on trust, in that interaction of the two factors were found. Significant positive relationship between trust, attitude, and purchase intention was found. Further implications are discussed based on results.

• Journal of the Korean Home Economics Association
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• v.46 no.4
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• pp.37-45
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• 2008

The purpose of this study is to investigate how relationship benefit affect trust and commitment, and how trust and commitment affect relationship continuity intention between apparel purchaser and salesperson. For the research, it was surveyed to 230 females in their 20's, who lives in Seoul and Kyeonggi on Feb 10th to 15th in 2007. With SPSS 11.0 program, the data was analysed by frequency analysis, reliability analysis, factor analysis and multiple regression analysis. The results are as follows: First, regarding to the results of factor analysis on relationship benefit, trust and commitment, the relationship benefit factor was divided into the social, psychological and economic benefits. The trust factor was divided into the professional and considerable trust, and the commitment factor was divided into the emotional and calculative commitment. Second, as investigating how relationship benefit affect trust and commitment during purchasing apparel, social and psychological benefits affected professional trust. The psychological benefit only affected to considerable trust. Also social and psychological benefit were statically affected to emotional commitment, economic benefit and psychological benefit were affected to calculative commitment. Third, relationship continuity intention was affected to professional and considerable trust, and emotional commitment.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.5
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• pp.537-546
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• 2011

This study shows the necessity of internal marketing activities and the need for effective internal marketing programs for fashion shop. This research tests the hypothesized relationships between internal marketing and its determinants such as job satisfaction, organizational commitment, and customer orientation. To measure these hypotheses, a total 200 questionnaires were distributed and 185 were collected. Finally, 163 questionnaires were used for the analysis, while 22 were found invalid. The frequency analysis, factor analysis, reliability analysis, and multiple regression were conducted after coding and cleaning by SPSS 18.0. The internal marketing activities were classified into five factors (internal communication, welfare system, empowerment, educational training program, and incentive system). The results of this study are as follow. First, internal marketing activities have a positive influence on job satisfaction and organizational commitment. Second, job satisfaction has an effect on organizational commitment. Third, internal marketing activities, job satisfaction, and organizational commitment have a positive influence on customer orientation. Accordingly, it should raise the standard of customer orientation, if it is promote the job satisfaction and organizational commitment of employee through internal marketing activities such as internal communication and empowerment.

• Journal of Korean Institute of Industrial Engineers
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• v.33 no.2
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• pp.201-212
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• 2007

Genetic algorithms (GAs) are very useful methods for global search and have been applied to various optimization problems. They have two kinds of important search mechanisms, crossover and mutation. Because the performance of GAs depends on these operators, a large number of operators have been developed for improving the performance of GAs. Especially, many researchers have been more interested in a crossover operator than a mutation operator. The reason is that a crossover operator is a main search operator in GAs and it has a more effect on the search performance. So, we also focus on a crossover operator. In this paper we first investigate the drawback of various crossovers, especially subtour-based crossovers and then introduce a new crossover operator to avoid such drawback and to increase efficiency. Also we compare it with several crossover operators for symmetric traveling salesman problem (STSP) for showing the performance of the proposed crossover. Finally, we introduce an efficient simple hybrid genetic algorithm using the proposed operator and then the quality and efficiency of the obtained results are discussed.