• Journal of Internet Computing and Services
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• v.12 no.5
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• pp.29-37
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• 2011

Recently, many user-participating web services have been used widely as the evolution of internet web technology has rapidly been developed. Users share various content and opinion on line using a site like ‘Social bookmarking.’ Users can share others’ bookmarking history and create tags while bookmarking web sites; we call it collaborative tagging. In this paper, we studied empirical analysis for widely used social bookmarking and collaborative tagging which the result shows minority of users is actively using the bookmarking and a few sites and tags are used by majority of the users. 24% users tagged 80%, 75% sites and 81% tags were tagged below than 3 times. Types of bookmarking activities were found different by users and early appointed tags get more frequency by majority. We also identified relative proportions of tags on certain sites are becoming convergence gradually. We expect the result of this paper will give opportunities to help further developing social bookmarking system.

• Journal of Engineering Education Research
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• v.23 no.3
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• pp.49-58
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• 2020

In the era of the fourth industrial revolution, the world is undergoing rapid social change. The purpose of this study is to predict the expected changes and necessary competencies and desired curriculum and teaching methods in the field of mechanical engineering in the near future. The research method was a Delphi study. It was conducted three times with 20 mechanical engineering experts. The results of the study are as follows: In the field of mechanical engineering, it will be increased the situational awareness by the use of measurement sensors, development of computer applications, flexibility and optimization by user's needs and mechanical equipment, and demand for robots equipped with AI. The mechanical engineer's career perspectives will be positive, but if it is stable, it will be a crisis. Therefore active response is needed. The competencies required in the field of mechanical engineering include collaborative skills, complex problem solving skills, self-directed learning skills, problem finding skills, creativity, communication skills, convergent thinking skills, and system engineering skills. The undergraduate curriculum to achieve above competencies includes four major dynamics, basic science, programming coding education, convergence education, data processing education, and cyber physical system education. Preferred mechanical engineering teaching methods include project-based learning, hands-on education, problem-based learning, team-based collaborative learning, experiment-based education, and software-assisted education. The mechanical engineering community and the government should be concerned about the education for mechanical engineers with the necessary competencies in the era of the 4th Industrial Revolution, which will make global competitiveness in the mechanical engineering fields.

• Journal of Digital Convergence
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• v.10 no.11
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• pp.579-588
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• 2012

Inclusion of hearing impaired students in general schools is the current tendency in deaf education today. The goal of inclusion is to promote the academic and social inclusion of hearing impaired students, where academic inclusion focuses on higher academic achievement and class participation level. However, some studies have shown that hearing impaired students attending general schools mostly experience feelings of isolation, rejection and loneliness, and encounter identity development problems. This study reviews the research on the inclusion of hearing impaired students in general schools, as well as the perceptions of their parents, teachers on their academic and social inclusion. A further aim of this study is to explore the supporting services, teachers's attitude, career guidance service and effective collaborative partnership among teachers for hearing impaired students. This study concludes with suggesting the community of knowledge as integrative supporting strategy for inclusion.

• Journal of Digital Convergence
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• v.14 no.9
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• pp.1-7
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• 2016

In recent years, the importance of collaboration has been emphasized in the public sector as well as private companies. In a study for private enterprises, individual enterprises stressed the innovation through collaboration with other organization such as enterprise, university, and other agencies. Other companies and agencies have the technology they need, so that they share skill or knowledge, and they do to create more new developments. This implies a collaborative system can be a win-win collaboration with all partners. It also requires collaboration in the public sector. Because they have many problems that can not be solved at the level of individual institutions. However, public institutions lie ecologically unfavorable in a collaborative environment than the private sector. The organizational structure is hierarchical. In addition, relationships between collaboration partners not recognize horizontally. Of course, communication is not smooth. This study examines successful collaboration case in private sector and we want to draw implications for public organizations. Finally, we discussed ways to promote collaboration in the public sector.

• Journal of Digital Convergence
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• v.17 no.11
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• pp.9-19
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• 2019

This study conducted the international evaluation of the APEC educational cooperation projects initiated by the Korean government and drew out strategies and tasks for their sustainable implementation. To this end, eight projects implemented by the Institute of APEC Collaborative Education were selected for the evaluation which examined participants' awareness of and the degree of participation in the eight projects as well as contribution to the intended outcomes of the projects. An online survey was conducted to participants of the eight projects and 283 experts and participants from 18 economies responded. The descriptive analysis found that the participants of ALCoB Cooperation Project reported the most positive perception of the awareness while the participants of the ALCoB Internet Volunteers showed the lowest degree of participation in and contribution to the intended outcomes of the project. Based on the results, several suggestions for further progress in Korea's APEC educational cooperation were made.

• Journal of Digital Convergence
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• v.17 no.8
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• pp.95-104
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• 2019

Recently, software education has been emphasized as a key element of the fourth industrial revolution. Many universities are strengthening the software education for all students according to the needs of the times. The use of online content is an effective way to introduce SW education for all students. However, the provision of uniform online contents has limitations in that it does not consider individual characteristics(major, sw interest, comprehension, interests, etc.) of students. In this study, we propose a recommendation method that utilizes the directional similarity between contents in the boolean view history data environment. We propose a new item-based recommendation formula that uses the confidence value of association rule analysis as the similarity level and apply it to the data of domestic paid contents site. Experimental results show that the recommendation accuracy is improved than when using the traditional collaborative recommendation using cosine or jaccard for similarity measurements.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.9
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• pp.1293-1304
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• 2022

The personalization recommendation system means analyzing each individual's interests or preferences and recommending information or products accordingly. These personalized recommendations can reduce the time consumers spend searching for information by accessing the products they need more quickly, and companies can increase corporate profits by recommending appropriate products that meet their needs. In this study, products are recommended to consumers using collaborative filtering, matrix factorization, and deep learning, which are representative personalization recommendation techniques. To this end, the data set after purchasing shopping mall products, which is raw data, is pre-processed in the form of transmitting the data set to the input of the recommended system, and the pre-processed data set is analyzed from various angles. In addition, each model performs verification and performance comparison on the recommended results, and explores the model with optimal performance, suggesting which model should be used when building the recommendation system at the mall.

• The Journal of the Convergence on Culture Technology
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• v.8 no.5
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• pp.663-668
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• 2022

As the number of people who experience sleep disorders is increasily growing, users' desire to improve their sleep quality has also increased. Acoordingly, the 'Sleeptech' market is showing a steady growth. This study designs and proposes a system after consideration of existing related research that can help modern people overcome sleep disorders, which is based on the necessity for customized sleep hygien service. This system analyzes user's sleep data collected through smartphone built-in sensors to calculate sleep patterns, provides customized sleep hygiene-based solutions to users through collaborative filtering, and provides an environment suitable for sleep through the automatic control of IoT devices. This method of using sleep data is expected to contribute to the improvement of the quality of life of modern people suffering from sleep disorders, which results from expansion to Sleeptech market as well as improvement of users' sleep habits.

• Journal of Korea Technology Innovation Society
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• v.20 no.4
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• pp.1089-1121
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• 2017

'Technological convergence' is the recent innovation trend which facilitates to solve social crux as well as to generate new industries. Korean government research institutes (GRIs) have taken a pivotal role for economic growth which capitalized on technology-oriented strategies. Recently, the policy interests on the transition of their role and mission towards multidisciplinary research organization is increasingly shed lights. This study regards the collaborative activities as one of the key success factors in the multidisciplinary research. In this sense, this study sets research purposes as follows: First, we intend to define a concept and to confine a scope of multidisciplinary research from the view point of R&D purposes and problem-solving process. Second, we categorize the collaboration and the relevant performances which reflect the characteristics of the multidisciplinary research. Third, we analyze the characteristics of collaborative activities and the effects of strength on the research performances. To this end, this study conducted a survey of 104 research project directors, which have experienced at least one of two types of multidisciplinary research projects through National R&D project or NST (National Research Council of Science & Technology) convergence research project. Then, we conducted regression analysis by utilizing the survey results in order to verify the relation between the collaborative activities and the performances. As results of analyses, first, the diversification of collaboration partners was a salient factor in the process of knowledge creation. Second, collective works among the researchers in similar area and domain enhanced mission-oriented technology development projects such as patent creation or technology transfer. Third, we verified that the diversity of created knowledge and the degree of relation continuity between researchers increased in the condition of guaranteeing individual researcher's independence and autonomy as well as sharing various technological capabilities. These results provide the future policy directions related to the methods to measure the collaboration and performance analysis for multidisciplinary research.

• Journal of Digital Convergence
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• v.14 no.5
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• pp.1-10
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• 2016

New systems and management strategies have been successfully settled in order to be linked to enhancing organizational performance internalization process. The most successful methods for internalization are training and communication strategies. However, the organization must be supported by trust and cooperation cultures for successful education and communication. In this study, we measured the degree of internalization of organized vision, and core values. And then, a successful convergence business strategy internalization plan was presented. Strengthening training plan, communication strategies and management strategies must be internalized in parallel with seeking a change of organizational culture. First, iterative learning is very effective in order to strengthen education and management strategies through talking frequently. Second, chief executive officer should pay attention to communication with employees for the internalization. Finally, in order to change the organizational culture, organizational leaders will establish strategic plan to build open and collaborative culture among colleagues and quantitative and qualitative expansion of the human network.