• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.11a
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• pp.307-307
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• 2017

알리바바는 단기간에 세계 최고규모의 전자 상거래 기업으로 성장하였다. 어떻게 그렇게 단기간에 그것도 인터넷이 그렇게 완비되지 않은 중국에서 출발하여 세계적 기업으로 알리바바가 성장할 수 있었을까? 이 문제에 대한 답을 구하고자 한다. 알리바바는 개방형 혁신을 통한 세계 최고수준의 창조적인 전자 상거래 비즈니스 모델을 단기간에 완비하여 갔다. 아울러, 개방형 혁신이 초래하는 복잡성이라는 비용, 즉 기업을 와해하는 원심력을 강력한 새로운 중국 기업 문화 "마윈식 소비자 신뢰 관씨 문화"를 구축하여 극복하여 왔다. 본 연구는 알리바바의 역동적인 개방형 혁신의 과정의 창발성과 그 과정에서 발생하는 원심력과 복잡성을 억제하는 새로운 관씨 문화, 제도, 및 리더십의 지속적인 강화 과정을 분석한다.

• Korean Institute of Interior Design Journal
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• no.31
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• pp.56-63
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• 2002

This study intends to prepare a system that can be used, by applying digital technique, in analyzing complexity of architectural forms that have been visualized by the correlation based on the distribution chart made in accordance with profile lines. The profile lines are derived from the edge analysis of the architectural forms, simplified based on the visual theory. For the purpose, this study was conducted in the following ways: First, problems of the existing models for the elevation analysis were examined along with formal analysis based on visual recognition to consider the profile lines derived from the forms. Secondly, in elevation analysis, profile lines were derived by digital method to measure them qualitatively. To verify the objectivity of the measured data value, a survey was conducted based on the adjective cataloging method, and the correlation of the survey result and analyzed data was analyzed to verify the validity of the derived data. Thirdly, supplementation for the problems deducted from experiments and the possibility to use it in designing were suggested. Digital method has many advantages over the conventional analyzing system in deriving precise data value by excluding subjectivity. It also allows various analytical methods in analyzing numerous data repeatedly. Diversified models and methods of analysis considering numerous factors arising in the process of designing remain assignments to research in future.

• Journal of Navigation and Port Research
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• v.37 no.4
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• pp.419-427
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• 2013

The purpose of this study was to analyze the perceptions to improvement directions of related regulations for water leisure activation. In order to accomplish such study purpose, the study utilized a survey methodology with 205 water leisure participants and 117 water leisure business employees. In addition, this study attempted to review the license and education system, registration and inspection system and business organizations from the advanced countries such as US, British, Australia and Japan. Accordingly, following findings were derived from current study. First, the problems of current license system included difficulty of operating the system and deficiency of operating organizations, and the improvement directions included expansion of education organizations and differentiation of education based on levels. Second, the improvement directions of registration and inspection included simplification of registration procedures and expansion of registration and inspection organizations. Third, difficulties perceived by business employees included complexity of entry and departure, complexity of registrating water leisure business and insufficiency of supporting business policies. In conclusion, water leisure related regulations including Water Leisure Safety Act need to be reformed continuously to reflect changing demands and needs from participants and business sectors.

• Journal of the Korea Convergence Society
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• v.13 no.1
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• pp.43-50
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• 2022

In this paper, it is shown how the performance of the monopulse algorithm in additive noise is evaluated. In the previous study, the performance analysis of the amplitude-comparison monopulse algorithm was conducted via the first-order and second-order Taylor expansion of four variables. By defining two new random variables from the four variables, it is shown that computational complexity associated with two random variables is much smaller than that associated with four random variables. Performance in terms of mean square error is analyzed from Monte-Carlo simulation. The scheme proposed in this paper is more efficient than that suggested in the previous study in terms of computational complexity. The expressions derived in this study can be utilized in getting analytic expressions of the mean square errors.

• The Journal of the Korea Contents Association
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• v.11 no.3
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• pp.368-376
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• 2011

This study has undertaken for the analysis of the level of recognition on the Transfer Income Tax. The statistical analysis through the questionnaire is made to find out the issues on the equitableness of Transfer Income Tax first with the level of equitableness of the Transfer Income Tax structure and appropriateness of the degree of different tax rate applied under the Transfer Income Tax, level of equitableness of the Transfer Income Tax structure and intent for avoidance of payment under the present tax policies, level of recognition for administrative disposition on those avoiding diligent payment of taxes, and it analyzed the relationship between the levels of understanding of the structure of the Transfer Income Tax and the level of complexity of the structure of the Transfer Income Tax in order to analyze if it has negative impact on the level of understanding for the structure of the Transfer Income Tax. On the basis of the above analysis result, as the improvement plan on the Transfer Income Tax system, following has been presented; enhancement of equitableness of tax rate structure under the Transfer Income Tax for improving the equitableness of tax burden, establishment of regulations to strengthen the appropriate tax investigation for prevention of diligent tax payment avoidance, relaxation of complication of the structure under the Transfer Income Tax.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.8
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• pp.66-74
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• 2019

The purpose of this study was to analyze work complexity, critical thinking disposition, and the degree of intuition for nurse practitioners and determine the associations among the variables. 150 nurses at hospitals and general hospitals in D City participated in this study and data collection was performed from June 15 to July 8, 2017. The data were processed by using SPSS WIN 24.0 to estimate the mean, standard deviation and Pearson's correlation coefficient and perform one-way ANOVA. They scored $2.33{\pm}.45$ for work complexity, $3.58{\pm}.36$ for critical thinking disposition, and $2.69{\pm}.52$ for intuition. Work complexity differed significantly by age (F=4.55, p=.012), education (F=11.61, p=<.001), department (F=26.69, p=<.001), and clinical career (F=4.30, p=.006) among their general characteristics. Critical thinking disposition differed significantly by education (F=5.25, p=.006) and position (F=5.35, p=.006) and differed statistically insignificantly by intuition. Work complexity was positively correlated with critical thinking disposition (r=.323, p=<.001) and intuition (r=.201, p=.013) and no significant correlation was found between critical thinking disposition and intuition (r=.033, p=.685). On the basis of these results, it is necessary to develop education and programs that can allow nurses who regard nursing work as complex to improve their critical thinking disposition and intuition.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1993.04a
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• pp.530-539
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• 1993

철강업의 특성인 일관공정체제에서는 한 공정의 NECK 발생이 전공정의 UNBALANCE를 초래하여 생산성에 막대한 지장을 초래하게 된다. 본 연구의 목적은 기존의 노후설비를 작업방법이 다른 신설비로 교체함에 따라 신설공정의 복잡성으로 전.후공정에 대기가 예상되므로 simulation을 이용한 공정분석으로 문제점을 사전에 도출하여 최적의 조업기준을 제시코자 한다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.14 no.1
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• pp.29-36
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• 2021

The amount of data generated has been growing exponentially, and the complexity of data has been increasing owing to the advancement of information technology (IT). Big data analysts and engineers have therefore been actively conducting research to minimize the analysis targets for faster processing and analysis of big data. Hadoop, which is widely used as a big data platform, provides various processing and analysis functions, including minimization of analysis targets through Hive, which is a subproject of Hadoop. However, Hive uses a vast amount of memory for data deduplication because it is implemented without considering the complexity of data. Therefore, an efficient algorithm has been proposed for data deduplication of complex structures. The performance evaluation results demonstrated that the proposed algorithm reduces the memory usage and data deduplication time by approximately 79% and 0.677%, respectively, compared to Hive. In the future, performance evaluation based on a large number of data nodes is required for a realistic verification of the proposed algorithm.

• Journal of Elementary Mathematics Education in Korea
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• v.22 no.3
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• pp.309-330
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• 2018

The purpose of this study is to identify possibility of a mathematical problem posing ability by presenting problem posing tasks with different degrees of structure according to the study of Stoyanova and Ellerton(1996). Also, the results of this study suggest the direction of gifted elementary mathematics education to increase mathematical creativity. The research results showed that mathematical problem posing ability is likely to be a factor in identification of gifted students, and suggested directions for problem posing activities in education for mathematically gifted by investigating the characteristics of original problems. Although there are many criteria that distinguish between gifted and ordinary students, it is most desirable to utilize the measurement of fluency through the well-structured problem posing tasks in terms of efficiency, which is consistent with the findings of Jo Seokhee et al. (2007). It is possible to obtain fairly good reliability and validity in the measurement of fluency. On the other hand, the fact that the problem with depth of solving steps of 3 or more is likely to be a unique problem suggests that students should be encouraged to create multi-steps problems when teaching creative problem posing activities for the gifted. This implies that using multi-steps problems is an alternative method to identify gifted elementary students.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.8B
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• pp.768-776
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• 2009

This paper analyses the message complexity of TDMA ad hoc MAC protocols. Since the network resource of ad hoc networks is limited due to the multiple interferences and the contention-based wireless channel, the scalability issue is one of the main research topics in developing ad hoc algorithms. Simulation demonstrates that SMACS protocol has the lowest message complexity, whereas TMMAC has the highest. In addition, it is found that since the effect of unicast dominates in the message complexity compared to other factors with an increasing number of nodes, Z-MAC tends to have the property of linearity, whereas BMA and TMMAC show exponential increases in their complexities.