• Journal of Technology Innovation
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• v.24 no.1
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• pp.189-219
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• 2016

Innovation clusters have developed a key policy indicator in the level of national competitiveness. Many countries have enhanced their regional competitiveness by fostering innovation clusters at the national, regional, and industrial level. In Korea, the cluster policy has been introduced and employed to a national policy as a means of facilitating a regional innovation for over two decades. This study analyze that the changes of the institutional, physical and social configurations of innovation clusters. In particular, we identified configuration factors which are the growth and development impact factors of individual subjects from the case study of the Daedeok Innopolis. Also, the factors are derived and identified priorities of the configuration factors by using Analytic Hierarchy Process (AHP) method in long term perspective. As a result, we provide the growth of individual innovation subjects, as well as the growth of the cluster caused by the cyclic causality among configuration factors. Also, we can suggest that innovation policy from priorities of configuration factors for innovation cluster which the priorities have lessons for policy implementation and new cluster policy agenda in Korea, in specific, the Daedeok Innopolis.

• Journal of Digital Convergence
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• v.15 no.10
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• pp.243-251
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• 2017

As external data have become important corporate information resources, there are growing needs to combine them with internal data. This paper proposes an ontology-based scheme to combine external data with multi-dimensional databases, which shall be called multi-dimensional event ontology. In the ontology, external data are represented as events. Event characteristics such as actors, places, times, targets are linked to dimensions of a multi-dimensional database. By mapping event characteristics to database dimensions, external event data are shared via multi-dimensional hierarchies. This paper proposes rules to synchronize information sharing in multi-dimensional event ontology such as upward event information sharing, downward event information sharing and complex event information sharing. These rules are implemented using Protege. This study has a value in suggesting Big Data information sharing processes using an event database framework.

• Journal of Digital Contents Society
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• v.13 no.4
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• pp.583-590
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• 2012

Domestic credit card companies and wireless operators want to deliver promotional information as well as the information for users on the site. A careful UX design is needed because promotional information can degrade the satisfaction of the users. In addition, too extensive information is provided on one site and users are confused about where to look for the information they need. Based on advanced research, study was conducted of the domestic web sites of wireless operators and credit card companies and we discussed that study with 12 users. Promotional information can be efficient with understated image. Users can find information easily from the site with fewer hierarchy of steps. The numbers of the menu that is presented at a time should not exceed nine.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.26 no.1
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• pp.77-100
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• 2015

Air Force library performs the functions of a library with respect to a specific group of Air Force. However, the development of Air Force library is beginning step, its facilities and services are not meet expectations. The analysis of operating status for entire Air Force libraries is so far not attempted. Focusing on this point, this study analysed for the first time evaluation regarding the overall operating status and activation of Air Force libraries at the levels of wing, group and squadron. The questionnaire was consisted of a total of 45 questions. The questionnaire was distributed to 101 Air Force libraries registered in currently August 2014. I was received the reply from 81 out of 101 Air Force libraries, but the responses of 4 libraries were poor, and analyzed the total 77 library responses excluding them. As the results of the analysis, this paper identified operational status and perception of activation of Air Force libraries as a whole, and pointed out the problems that have been identified regarding the operation of these libraries. Furthermore, this paper suggested concretely activation plan for the development of Air Force libraries.

• Journal of the Korea Computer Graphics Society
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• v.7 no.4
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• pp.9-18
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• 2001

There was much previous work to represent effects which are used in the real world paintings. In case of Western paintings like as watercolor or oil painting, largely conversion techniques from photo images were researched. However, in case of Oriental paintings, the development of a conversion technique is not easy because a few strokes are used to represent objects. Then, model-based approach was studied to draw Oriental paintings. In this paper, a model-based approach for Oriental paintings is described. In our model, to represent the diffusion effects, LEM(Local Equilibrium Model) is proposed. LEM is a method to calculate the movement of water and ink effectively. Also, a layer model for paper is proposed to discriminate wet or dry state. And a brush model to draw strokes is described.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.1A
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• pp.30-37
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• 2006

In this paper, we propose a QoS-aware efficient bandwidth re-provisioning scheme in a next generation wireless packet transport network. At the transport network layer, it classifies the traffic of the radio network layer into a real time class and a non-real time class. Using an auto-regressive time-series model and a given packet loss probability, our scheme predicts the needed bandwidth of the non-real time class at every re-provisioning interval. Our scheme increases the system capacity by releasing the unutilized bandwidth of the non-real time traffic class for the real-time traffic class while insuring a controllable upper bound on the packet loss probability of a non-real time traffic class. Through empirical evaluations using the real Internet traffic traces, our scheme is validated that it can increase the bandwidth efficiency while guaranteeing the quality of service requirements of the non-real time traffic class.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.45 no.4
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• pp.27-33
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• 2008

The clustering of gene expression data is used to analyze the results of microarray studies. This clustering is one of the frequently used methods in understanding degrees of biological change and gene expression. In biological research, MCL algorithm is an algorithm that clusters nodes within a graph, and is quick and efficient. We have modified the existing MCL algorithm and applied it to microarray data. In applying the MCL algorithm we put forth a simulation that adjusts two factors, namely inflation and diagonal tent and converted them by making use of Markov matrix. Furthermore, in order to distinguish class more clearly in the modified MCL algorithm we took the average of each row and used it as a threshold. Therefore, the improved algorithm can increase accuracy better than the existing ones. In other words, in the actual experiment, it showed an average of 70% accuracy when compared with an existing class. We also compared the MCL algorithm with the self-organizing map(SOM) clustering, K-means clustering and hierarchical clustering (HC) algorithms. And the result showed that it showed better results than ones derived from hierarchical clustering and K-means method.

• Korean Journal of Social Welfare
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• v.63 no.4
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• pp.277-299
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• 2011

The current study analyzed the tax structure in the welfare states. The appropriate tax structure of universal welfare state should be based on expanding all taxes, rather than choosing between direct and indirect, progressive and regressive, or mobile and immobile tax. The revenue for the universal welfare payment should be raised by levying tax on all people provided that the welfare payment is made available to all people. The analysis led to classification of tax structure into the high tax European model and the low tax English and East Asian model. The high tax European model was further classified into the balance tax model and the high social security model. The low tax English and East Asian model was classified into the low social security model and the high property tax model. Based on the results, the study maintained that the universal welfare states need not only to expand welfare resources but to develop tax system that corresponds to the universal welfare system.

• The Journal of the Korea Contents Association
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• v.14 no.10
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• pp.472-485
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• 2014

This study focuses on the news making system of the prime time news of PSB in Korean society, where the presence of ethnic minorities is increasing rapidly. Although the World Wide Web has become one of the most attractive media over the last decade, Korean PSB, Korean Broadcasting System (KBS), still remains the most popular and influential medium. Therefore, the process of analyzing news making system of ethnic minorities in Korean society represented in Korean PSB as a social construction is meaningful in that it provides an important key to understand the cultural and political background and characteristics of society. For this purpose, the article tries to understand news making process when producing news related to ethnic minorities in the Korean society such as migrant workers, married migrant women and mixed-heritage children of multicultural families by interview with ten reporters in KBS. As a result, most KBS reporters had stereotypes towards multiculturalism and migrants and news reports relating to ethnic minorities are usually produced routinely, using a set of rules that have become part of KBS culture.

• Journal of Digital Contents Society
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• v.10 no.4
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• pp.543-550
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• 2009

In these days mobile handsets have come to be used at almost every user. The performance improvement of mobile devices and networks have made this trend possible. As a great variety of mobile applications are published, the necessity of running large-scale mobile applications becomes greater than before. To accomplish this, the existing researchers have developed mobile cluster computing libraries like Mobile-JPVM. In this paper, we implement a compute-intensive Animated GIF generating application and its cell phone viewer software using Mobile-JPVM library. We find out by the real execution of our softwares on the KTF handsets that they can sufficiently run on cellular phones. Our Animated GIF generator and its viewer are going to be commercially used for the mobile fashion advertisement systems.