• The Journal of Korea Robotics Society
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• v.5 no.2
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• pp.85-92
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• 2010

In this paper, we propose a digital image stabilization technique using edge detection and Lucas-Kanade optical flow in order to minimize the motion of the shaken image. The accuracy of motion estimation based on block matching technique depends on the size of search window, which results in long calculation time. Therefore it is not applicable to real-time system. In addition, since the size of vector depends on that of block, it is difficult to estimate the motion which is bigger than the block size. The proposed method extracts the trust region using edge detection, to estimate the motion of some critical points in trust region based on Lucas-Kanade optical flow algorithm. The experimental results show that the proposed method stabilizes the shaking of motion image effectively in real time.

• Industrial Engineering and Management Systems
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• v.9 no.1
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• pp.10-19
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• 2010

This paper presents an extended computing procedure for the global optimization of the triple response system (TRS) where the response functions are nonconvex (nonconcave) quadratics and the input factors satisfy a radial region of interest. The TRS arising from response surface modeling can be approximated using a nonlinear mathematical program involving one primary (objective) function and two secondary (constraints) functions. An optimization algorithm named triple response surface algorithm (TRSALG) is proposed to determine the global optimum for the nondegenerate TRS. In TRSALG, the Lagrange multipliers of target (secondary) functions are computed by using the Hooke-Jeeves search method, and the Lagrange multiplier of the radial constraint is located by using the trust region (TR) method at the same time. To ensure global optimality that can be attained by TRSALG, included is the means for detecting the degenerate case. In the field of numerical optimization, as the family of TR approach always exhibits excellent mathematical properties during optimization steps, thus the proposed algorithm can guarantee the global optimal solution where the optimality conditions are satisfied for the nondegenerate TRS. The computing procedure is illustrated in terms of examples found in the quality literature where the comparison results with a gradient-based method are used to calibrate TRSALG.

• Journal of the East Asian Society of Dietary Life
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• v.18 no.5
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• pp.861-872
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• 2008

Despite the recent increase in the prevalence of the franchise system in the foodservivce industry is increased recently, the its variation the exigencies of the industry itself requires that franchise systems to be fully equipped with various a variety of business strategies which is indispensable to run franchise system. In the previous studies, most the majority of researchers have been likely to gathered samples from only one region, or all from a similar type of business. However, considering the difference between Seoul and other areas or categories of business type, there could be may be differences different with in these conditions (market orientation, transaction specific assets, environmental dynamic, and trust and trust). Therefore, the principal objective of this study aims was to verify the differences among areas and categories of franchise business. The results of this article are as follows : the variables of customer orientation, competitor orientation, environmental dynamics, and trust and transaction- specific assets show evidence regional differences (p<0.01), and these variables are differ significantly different by category of business (p<0.05). However, the present paper is limited in its scope. Further studies on into different largesclae assessments are needed required.

• Korean Journal of Health Education and Promotion
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• v.29 no.2
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• pp.59-70
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• 2012

Objectives: The purpose of this research is to measure the level of individual social capital, and to reveal the associations between social capital and self-rated health status and how the administrative section(dong, eup, and myeon) might modify the relationships. Methods: This study used the data from Gyeongsangnam-Do health survey (2008). The study subjects were 6,500 adults randomly sampled from 20 counties. Trained interviewers conducted the interviews in the interviewees' houses using structured questionnaires. The association of social capital with self-rated health was analyzed using hierarchical logistic regression. Results: The proportion of trust and social participation were the highest at eup region and the lowest at myeon, The significant social capital associated with self-rated good health were both social participation and trust in the subgroups of dong. The significant social capital associated with self-rated good health were social participation and trust in the subgroups of eup. The significant social capital associated with self-rated good health was trust in the subgroups of myeon. Conclusions: This study highlights that self-rated good health was associated with social capital measured by social participation and trust, and the direction is different in the administrative section. But, health policy encouraging social capital to improve health should be considered.

• Journal of Korea Multimedia Society
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• v.21 no.8
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• pp.969-981
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• 2018

Recent advances in machine learning approaches such as deep neural network and reinforcement learning offer significant performance improvements in generating detailed and varied motions in physically simulated virtual environments. The optimization methods are highly attractive because it allows for less understanding of underlying physics or mechanisms even for high-dimensional subtle control problems. In this paper, we propose an efficient learning method for stochastic policy represented as deep neural networks so that agent can generate various energetic motions adaptively to the changes of tasks and states without losing interactivity and robustness. This strategy could be realized by our novel trajectory search method motivated by the trust region policy optimization method. Our value-based trajectory smoothing technique finds stably learnable trajectories without consulting neural network responses directly. This policy is set as a trust region of the artificial neural network, so that it can learn the desired motion quickly.

• Journal of the Korean Society for Precision Engineering
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• v.30 no.10
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• pp.1031-1039
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• 2013

This paper presents gain optimization of a 6-DOF underwater robotic platform with 4 rotatable thrusters. To stabilize the 6-DOF motion of the underwater robotic platform, a back-stepping controller is designed with 6 proportional gains and 6 derivative gains. The 12 gains of the backstepping controller are optimized to decrease settling time in step response in 6-DOF motion independently. Stability criterion and overshoots are used as a constraint of the optimization problem. Trust-region algorithm and hybrid Taguchi-Random order Coordinate search algorithm are used to determine the optimal parameters, and the results by two methods are analyzed. Additionally, the resulting controller shows improved performance under disturbances.

• Journal of the Korean Society of Clothing and Textiles
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• v.25 no.6
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• pp.1079-1090
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• 2001

This paper suggest the importance of relationship marketing of the apparel store, and proved the relationship between the relationship marketing factors and the relationship quality and performance. In this research, department store is focused, Credence service, contact guest service, and communication service are defined as relationship marketing factors. Satisfaction and trust are defined as relationship quality. And long-term oriented relationship, repeat purchase. and positive word-of-mouth are set to performance. The questionnaire survey was carried out 238 20's & 30's women in the capital region during nov, 2000. SAS package program was used to analyze the gathered data. The investigation of this research reveals some results. First, relationship marketing factor has effects on relationship quality. Second, it is proved that relationship quality has effects on performance. In conclusion, it is proved that relationship marketing of apparel store is very important marketing strategy that make concrete relationship with consumer and give satisfaction and trust to consumer, and then can make partnership with consumer for long-term consideration.

• Nuclear Engineering and Technology
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• v.52 no.12
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• pp.2958-2968
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• 2020

Understanding public perception on nuclear research reactor is necessary for the policy maker to adopt such technology in Thailand, especially the locals who live in the proposed location. The study compared perceptions between the locals living near the proposed nuclear research reactor location (within 5 km) and those living in the outer region (5-15 km). Structural equation modeling technique was adopted by assuming casual relationships between latent variables including social status, information perception, trust, benefit perception and risk perception on the local acceptance of research reactor. The results showed that the strongest relationships for both the inner and the outer perimeters were from information perception toward technology acceptance via trust and benefit perception. While both zones showed similar results, the outer perimeter seemed to show slightly stronger effects than those in the inner perimeter.

• Journal of Digital Convergence
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• v.16 no.7
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• pp.189-198
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• 2018

Automotive parts distribution industry focused on increasing sales by product quality until early 2010, but as competition has recently intensified, each company has become interested in core values such as customer satisfaction, trust and loyalty. Therefore, effect of customer-oriented service mindset should be analyzed for the relationship between service quality and customer satisfaction, trust, and loyalty in this industry. For this, a questionnaire survey was conducted for 342 distributors. Structural equation models were analyzed using AMOS 23.0. Empirical results show service quality has positive effects on customer loyalty, and customer satisfaction and trust mediate between service quality and customer loyalty. The service quality became a key factor to elicit customer satisfaction, trust and loyalty. Following studies, it is expected to enhance service quality focusing on extending region coverages.

• Journal of The Korean Society of Agricultural Engineers
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• v.63 no.4
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• pp.43-53
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• 2021

The purpose of this study is to analyze the factor influencing in order to increase the intention to revisit rural experience tourism. 181 men and women who had experienced rural experience tourism were surveyed in a Self-Assessment Questionnaire. Some farming experience, life experience, cultural experience, and leisure experience were set as independent variables as representative programs of rural experience tourism, satisfaction and trust as mediated variables, and relationships as dependent variables. Here, the relationship is regarded as a variable representing the intention to revisit. When performing multi-group path analysis by separating men and women, both men and women had a statistically significant positive (+) effect in the Leisure experience→Satisfaction path and the Trust→Relation path. In addition, the paths that were statistically significant for women were not statistically significant, but were statistically significant only for men were Farm experience→Satisfaction path, Farm experience→Relation path, and Leisure experience→Relation path. In addition, the paths that were not statistically significant for men, but statistically significant for women were Culture experience→Satisfaction and Trust→Satisfaction. According to this study, in order to increase the intention to revisit, both men and women should consider leisure experience. And men should emphasize farming experience, while women should emphasize cultural experience. It is considered that there is a need to further subdivide leisure experience, farming experience and cultural experience for the region. This study has a limitation of only 181 people. More large-scale research will be possible in the future.