• Journal of applied mathematics & informatics
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• v.24 no.1_2
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• pp.245-259
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• 2007

This paper studies some properties of the value functions and gives some sufficient and necessary conditions about the presented global error and local error. And it leads to one kind of relationship between iterative points and optimal solution or K-T point.

• Convergence Security Journal
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• v.10 no.2
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• pp.51-57
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• 2010

This paper proposes extended trust evaluation mechanism which is able to become the standard of the node selection which provides a better service by using the basic transaction message which occurs from within the mobile Ad-hoc network and the additional transaction message and add confidence value. Furthermore, throughout the simulation shows the efficiency of the proposed trust evaluation mechanism.

• Journal of the Korean Society of Clothing and Textiles
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• v.27 no.2
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• pp.229-238
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• 2003

The objective of this study is to investigate the impact of firm's various kind of characteristics on the oust in the supply chains between the textile makers and the retailers. Based on the preceding literature review. six hypotheses are proposed. To test the proposed hypotheses, data were collected utilizing questionnaires from 68 retailers(fashion shop). To analyze the data the SPSSWin statistical package was employed. Two(H4 and H6) out of six hypotheses were accepted, the others were rejected. According to the results, the greater the impact of the shared value and the reputation for the retailers on the textile maker is, the stronger the trust of the retailers in the textile maker is. Based on the research results, we can conclude that the trust management is a very important factor in the supply chains between the textile makers and the retailers.

• Journal of the Korean Society of Clothing and Textiles
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• v.41 no.1
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• pp.116-130
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• 2017

This study analyzed the effects of consumption value of outdoor female consumers on relationship quality and long-term relationship orientation as well as differences in consumption value, relationship quality and long-term relationship orientation by demographic characteristics. A survey was conducted from May 15-22, 2016; subsequently, 336 responses were used in the analysis. Statistical analysis methods consisted of frequency analysis, factor analysis, reliability analysis, t-test, ANOVA, and regression analysis. The results indicate that the consumption value of outdoor female consumers was composed of functional value, emotional value, epistemic value, situational value, and social value. Relationship quality was composed of satisfaction, commitment, and trust. Consumption value (functional value, emotional value, epistemic value, situational value, and social value) of outdoor female consumers positively affected satisfaction. Emotional value, epistemic value and situational value positively affected commitment; in addition, functional value and emotional value positively affected trust. Satisfaction, commitment, and trust about outdoor brand also positively affected the long-term relationship orientation; in addition, consumption value positively affected long-term relationship orientation. There were significant differences in the consumption value and relationship quality by age and marital status. The study results provide useful information for the marketing strategies of outdoor brands that consider female consumers.

• The Journal of the Korea Contents Association
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• v.21 no.7
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• pp.374-385
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• 2021

Brand community refers to a group of consumers who are passionate about the brand, and actively participate in enhancing the brand value. This study examines the impact of brand community experience on brand satisfaction, brand trust, and brand value co-creation, focusing on BTS's fan community, 'ARMY'. The results show that the value of aesthetic sensitivity, self-consistency, and intellectual fulfillment, obtained through brand community experiences, had a positive impact on brand satisfaction and brand trust, and brand value co-creation. The implications of this study are as follows: First, rather than company-centered traditional marketing campaign strategies, future brand marketing strategies should focus on nurturing brand communities through which encourage emotional communication and solidarity between consumers and companies. Second, in order to enhance brand community experiences, it is necessary to provide various opportunities to satisfy customers' intellectual curiosity and self-consistency as well as sensory stimuli related to the brand.

• Culinary science and hospitality research
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• v.13 no.2
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• pp.223-239
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• 2007

This study aims at providing managerial insight into researchers and marketers who are intending to maintain and develop a loyal group and long-term relationships in fast food restaurants. The summary of results is as follows : There was a wide difference in evaluation of perceived value, trust and customer loyalty according to sex, age, occupation and customer's visit behavior. Customers considered the convenient and quick service as the most important selective factor. And also, the important attribute of fast food restaurants was taste of food, followed by price, cleanliness, kindly service, quick service. We are able to classify the four customer groups according to analysis results. If we lay great emphasis on the above mentioned selective factors and also develop needs in each customer group, it does much for delivering profits of fast food restaurants.

• Journal of Industrial Convergence
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• v.4 no.1
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• pp.39-65
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• 2006

Many researches on online shopping malls have been studied actively in domestic and foreign countries. As the life style of domestic consumers have changed, the role of traditional markets have been replaced by that of discount retail stores. However, there have been a little research on domestic discount retail stores. This paper provides empirical evidence on the relationship between perceived value, trust, satisfaction, and repurchase intention based on a discount retail store in Gyeongnam province. The result show that trust and satisfaction act as a mediating variable on the relationship between perceived value and repurchase intention.

• Journal of Korea Society of Digital Industry and Information Management
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• v.4 no.1
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• pp.33-40
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• 2008

This paper presents a new scheduling scheme in wireless distributed network. To overcome the limited information about unfamiliar mobile nodes and to reduce the required system performance, we propose a scheduling algorithm of job allocation based on the trust model. The suggested scheduler evaluate an unfamiliar mobile node's trust and make reference to the trust value of neighboring scheduler. This scheduling algorithm can avoid malicious or selfish mobile nodes by assigning low trust values. We also present a trust evaluation metric and show the efficiency of suggested scheduling algorithm by performance evaluation.

• ETRI Journal
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• v.27 no.4
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• pp.465-468
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• 2005

This paper presents a new trust evaluation scheme in an ad hoc network. To overcome the limited information about unfamiliar nodes and to reduce the required memory space, we propose a cluster-based trust evaluation scheme, in which neighboring nodes form a cluster and select one node as a cluster head. The head issues a trust value certificate that can be referred to by its non-neighbor nodes. In this way, an evaluation of an unfamiliar node's trust can be done very efficiently and precisely. In this paper, we present a trust evaluation metric using this scheme and some operations for forming and managing a cluster. An analysis of the proposed scheme over some security problems is also presented.

• International Journal of Computer Science & Network Security
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• v.21 no.9
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• pp.91-98
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• 2021

Peer to Peer Networks play an increasing role in today's networks, also it's expected that this type of communication networks evolves more in the future. Since the number of users that is involved in Peer to Peer Networks is huge and will be increased more in the future, security issues will appear and increase as well. Thus, providing a sustainable solution is needed to ensure the security of Peer to Peer Networks. This paper is presenting a new protocol called Malicious Trust Managers Identification (MTMI). This protocol is used to ensure anonymity of trust manager, that computes and stores the trust value for another peer. The proposed protocol builds a secure connection between trust managers by using public key infrastructure. As well as experimental testing has been conducted to validate the proposed protocol.