• Journal of the Korea Society for Simulation
• /
• v.23 no.1
• /
• pp.21-31
• /
• 2014

In this article, data mining simulation is applied to find a proper approach and results of analysis for study of variables related to organization. Also, turnover intention and organizational commitment are used as target (dependent) variables in this simulation. Classification and regression tree (CART) with ensemble methods are used in this study for simulation. Human capital corporate panel data of Korea Research Institute for Vocation Education & Training (KRIVET) is used. The panel data is collected in 2005, 2007, and 2009. Organizational commitment variables are analyzed with combined measure variables which are created after investigation of reliability and single dimensionality for multiple-item measurement details. The results of this study are as follows. First, major determinants of turnover intention are trust, communication, and talent management-oriented trend. Second, the main determining factors for organizational commitment are trust, the number of years worked, innovation, communication. CART with ensemble methods has two ensemble CART methods which are CART with Bagging and CART with Arcing. Comparing two methods, CART with Arcing (Arc-x4) extracted scenarios with very high coefficients of determination. In this study, a scenario with maximum coefficient of determinant and minimum error is obtained and practical implications are presented. Using one of data mining methods, CART with ensemble method. Also, the limitation and future research are discussed.

• Journal of the Korea Convergence Society
• /
• v.11 no.3
• /
• pp.211-218
• /
• 2020

This study compared and analyzed the efficiency of the research results of the convergence research project operated by the National Science and Technology Research Council and the general research project carried out by the Government-funded research institute and proposed measures to enhance the efficiency of the operation and management of convergence research. Research data were collected from 21 government-funded research institutes through an information disclosure claim and DEA analysis was conducted for efficiency assessment. The SCI papers of convergence research showed high efficiency, and the patent registration and technology transfer sector showed high efficiency of general research projects. This indicates that convergence research projects for securing lead and original technologies are highly efficient, but their performance is low due to lack of participation by businesses in terms of the utilization of derived technologies, and more companies' participation and opportunities are needed for practical use of convergence research results. Through the analysis of efficiency of convergence research project performance, this study provided policy and guidance for R&D planning for rational investment of limited manpower and research costs. Further, future research on identifying efficiency is proposed depending on the type of technology subject to convergence research as a method for managing convergence research.

• Journal of the Economic Geographical Society of Korea
• /
• v.10 no.2
• /
• pp.197-210
• /
• 2007

This study focuses on the actual condition and level of residents' participation in the case of Jinmok village, located in Jeonnam province Jangheung-gun Hwejin-myeon, and presents suggestions to inspire residents' awareness and enhance participation. This village has been developing a Green Rural Tourism Village Building Project under management of the Ministry of Agriculture and Forestry. Consequently, the importance of residents recognizing they are a "community" has been emphasized as well as promoting the residents cooperation as a community. In addition, it was necessary to research ways to inspire the village to realize the ultimate goal of building rural tourism village. For this, in the beginning of the project, profitable work needed to be provided for the residents to participate in. Constructive participation by all residents is essential in each stage of the project s development. Operating a farm stay or running lodging facilities are options that could be considered. Moreover, it is imperative to immediately establish a awareness about the importance of participation in those who might have a negative or impartial opinion about the project, by providing education. The most efficient way to encourage residents' participation is to support various opportunities for education and field trips. Through these efforts, the residents are able to raise their level of education and develop their man-power as well. Once more, providing an incentive for residents' reliance is the kernel of the project. Considering the state of Korean rural areas, which are rapidly aging and becoming depopulated, green tourism can be a practical alternative for continuing rural development.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.25 no.7
• /
• pp.841-850
• /
• 2019

The Korean government has designated speed-limit zones and speed limits in 19 ports and 3 routes to ensure safe navigation and transportation. However, the speed limit differs from port to port, no practical means of management exist. This often leads to violation of the speed limit. Additionally, ship collisions due to human error continue to occur. First, the study analyzed marine accidents that occurred at trade ports and fairways. The result of the analysis revealed the occurrence of 1344 accidents (average 269 cases per year) from 2014 to 2018. Five hundred sixty three accidents involved fishing boats, whereas, merchant vessels were involved in 508 cases. Second, the efficacy of the application of voice and message warnings to GPS plotters and electronic chart display and information system (ECDIS) was reviewed, and these were proposed as measures to inform vessel operators of the hazards of speed limit violation. Third, experts' opinions from relevant agencies and navigation system manufacturers were consulted and it was found that the proposed warning function was technically implementable. The findings are expected to help reduce human error among ship operators and establish a Korean e-navigation system.

• Journal of Practical Engineering Education
• /
• v.8 no.1
• /
• pp.39-47
• /
• 2016

Owing to increasing concern that jobseekers are wasting too much time and effort building up so-called "spec" skills to get a decent job, many companies including state-run enterprises are now hiring rookies based on their job competency rather than test scores unrelated to the job. However, universities which are mainly responsible for training professional personnel needed for various kinds of companies and factories are reluctant to adopt NCS-based educational courses. The NCS defines how much knowledge and skill are required to work in a certain industry and then evaluates them. Although the Korean government and several junior colleges have been tentatively operating the course-based qualification system at the "industrial technician" level since 2014, the results are falling far short of diverse stakeholders' expectations. Therefore, there are urgent needs to study how to develop NCS-based curriculum at the university level, and how to strengthen the linkage between work, training, and qualification.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.16 no.11
• /
• pp.7617-7628
• /
• 2015

Recent changes in the industrial parks have become a major issue in the nation's economic aspect. However, the industrial park's structure-advance projects under regional changes have excluded the surrounding spaces. The purpose of study is to analyze physical characteristics of Industrial park and adjacent area and to propose practical urban linkage alternatives as place-making It was found that in an urban aspect, the industrial parks belong within the city, but look like an isolated island that doesn't belong to a city. Therefore, as a way that could improve the problems above, and prevent the formation of heterogeneous spaces, the deliberate management of Industrial park's structure-advancement projects is needed. As one of these measures, It is concluded that the review of designating industrial facility zones which is a district unit plan and managing the detailed elements of construction to the various elements of the district level are needed.

• Journal of Information Management
• /
• v.43 no.1
• /
• pp.109-134
• /
• 2012

This study, focusing on process of online Word-of-Mouth(oWOM) adoption in applications market which is a major issue of recent mobile industry, tried to empirically analyze how main characteristics of oWOM affect trust and process of oWOM adoption. To do this, based on understanding about applications market and precedent studies on online communication and Elaboration Likelihood Model(ELM), I developed the research model and proposed seven hypotheses. The subjects were smart phone users who ever used review in mobile applications market. The study method was questionnaire survey. As a result, trust in review was suggested as prerequisite for consumers to accept on-line review in mobile applications market. And it was empirically proved that for the customers to feel trust, these are necessary - positive assessment on argument quality, vividness of delivered explanation, and neutrality of message. The theoretical implications of this study are that based on studies on oWOM, factors affecting trust in review were explored in the environment of mobile applications market with less judgement clues for decision making compared to other on-line media and then, these factors were conceptualized. From the practical view, this study suggested implication on what attributes companies or developers can strategically utilize while investigating prerequisites of oWOM adoption.

• Journal of the Society of Disaster Information
• /
• v.13 no.3
• /
• pp.405-412
• /
• 2017

Due to the increase in awareness of school safety after the Sewol ferry disaster, it became necessary to improve the capability to prevent a safety accident at school and to respond to an accident in the case of emergency as well as the awareness of safety issues. Therefore, it is necessary for educational institutions to reinforce safety measures autonomously, and the importance of supports and cooperation from agencies related to the safety of local community is also emphasized. However, it is quite difficult for schools and the Office of Education to prevent safety accidents only with their own capability, and safety accidents can be prevented through the supports from agencies involved in safety of local communities. Therefore, the status and cooperation system of educational institutions and relevant authorities were reviewed theoretically in this study. In addition, a field investigation was carried out to examine the awareness of disaster and safety, and cooperation status of officials in charge of practical disaster-related works. Moreover, this study intended to present a measure to establish the safety cooperation system between educational institutions and agencies involved in safety of local community in the future based on the findings.

• Journal of the Society of Disaster Information
• /
• v.15 no.4
• /
• pp.597-606
• /
• 2019

Purpose: This paper is for the improvement of the safety education system in the construction industry, which has become a great threat to domestic industrial safety. Among the industrial sectors, the accident rate and death rate in the construction industry are the highest, and measures for falls in the litigation work are needed. Method: The application of the Analytic Hierarchy Process(AHP) resulted in the following conclusions. Results: The management group of the construction industry was divided into a group of on-site workers. In addition, the practical education system was reviewed by analyzing differences in perceptions of safety education. The survey results of the two groups were analyzed through AHP by dividing the construction safety education system into three layers. Conclusion: The results showed that managers showed a great deal of importance, such as actual conditions for implementation related to education, while on-site workers indicated importance for items that were somewhat site-oriented compared to managers. In addition, the two groups did not place much weight on the effectiveness of AR and VR, which have been expanding into safety education recently.

• Journal of KIISE:Computer Systems and Theory
• /
• v.31 no.8
• /
• pp.432-444
• /
• 2004

In this paper, we construct the TMO-based object group model on distributed environment, and analyze and evaluate the executability for distributed real-time service of our object group model by developing the distributed real-time application simulator applying the model. The Time-triggered Message-triggered Object(TMO) is a real-time server object having real-time property itself. The TMO-based object group is defined as a set of objects which logically reconfigured the physically distributed one or more TMOs on network by a given distributed application. For supporting group management of the server objects, the TMO-based object group we suggested provides the functions which register and withdraw the solver objects as a group member to an arbitrary object group, and also provides the functions which insert and delete the access rights of server objects from clients. Also, our model was designed and implemented to support the appropriate object selection and dynamic binding service for a single TMO as well as the duplicated TMOs, and to support the real-time scheduling service for the clients which are requesting the service. Finally, we developed the Defence System against Invading Enemy Planes(DSIEP) simulator as a practical example of distributed real-time application by applying our model, and evaluated the adaptability of distributed service strategies for the group components and the executability of real-time services that the TMO-based object group model provides.