Trends of Import and Export by Each Continent in Korea and Plans to Increase Exports

최수호,Choi, Soo-Ho The Korea Contents Association 2018 한국콘텐츠학회논문지 Vol.18 No.11

The purpose of this study is to examine the trends of import and export of Korea by each continent and to find ways to increase export to Korea in the future. Each continent selected Asia, Europe, North America, Central and South America, and the Middle East. The analysis period was 220 months from January 2000 to April 2018, and data were collected from the KCS. Regression analysis showed that the coefficient was higher in Asia, Europe, North America, Middle East and Latin America. The markets of each continent moved independently of each other and were statistically significant at t statistic and p-value(${\leq}0.01$). As a result of this study, Asia and North America have been major export markets in Korea. Europe, the Middle East and Central and South America are emerging as new markets in Korea. In order to increase Korea's exports in the future, there is a need for continued interest in Asian markets including China & Southeast Asia. 본 연구의 목적은 각 대륙별 한국의 수출입액 동향을 살펴보고, 향후 한국 수출을 증대하기 위한 방안을 찾아보는데 있다. 각 대륙은 아시아, 유럽, 북미, 중남미, 중동을 선정하였다. 분석기간은 2000년 1월부터 2018년 4월까지 총 220개월이며, 관세청에서 자료를 수집하였다. 회귀분석결과, Coefficient가 아시아, 유럽, 북미, 중동, 중남미 순으로 높게 나왔다. 각 대륙별 시장은 서로 독립적으로 움직이고, t통계량과 p-value($${\leq_-}0.01$$)에서 통계적으로 유의하게 산출되었다. 최근 유럽, 중동, 중남미가 새로운 시장으로 부각되고 있다. 향후 한국의 수출 증대를 위해서는 중국과 동남아시아를 비롯한 아시아 시장에 대한 지속적인 관심이 필요하다. 또한 새로운 시장으로 떠오르는 유럽, 중동, 중남미에 대한 수출비중을 높이기 위해 효율적인 대응전략을 마련해야 한다.

A Policy on Efficient Load-Balancing Using Contents-Based Game Servers

Myung, Won-Shig The Korea Contents Association 2007 International Journal of Contents Vol.3 No.1

This paper proposes a policy on efficient load balancing that can reduce the network game server load burdened by surging number of users. The study adopted a contents-based clustering technique. Recently, skyrocketing number of clients in on-line games causes overloads on specific game servers, and the consequent server-instability brings the worst situation: a server failure. To cope with this problem, one can install more high-powered servers or be equipped with back-up servers, which is often inefficient in terms of cost performance. To solve this problem, the present study examined the technology enhancing the performance and efficiency of game servers by reducing the loads of specific game servers. In doing this, this study used the clustering technology to compose game servers classified by their contents and carried out appropriate load balancing to numerous clients with load balancers in each region.

Financial Distress Prediction Models for Wind Energy SMEs

Oh, Nak-Kyo The Korea Contents Association 2014 International Journal of Contents Vol.10 No.4

The purpose of this paper was to identify suitable variables for financial distress prediction models and to compare the accuracy of MDA and LA for early warning signals for wind energy companies in Korea. The research methods, discriminant analysis and logit analysis have been widely used. The data set consisted of 15 wind energy SMEs in KOSDAQ with financial statements in 2012 from KIS-Value. We found that five financial ratio variables were statistically significant and the accuracy of MDA was 86%, while that of LA is 100%. The importance of this study is that it demonstrates empirically that financial distress prediction models are applicable to the wind energy industry in Korea as an early warning signs of impending bankruptcy.

SRS: Social Correlation Group based Recommender System for Social IoT Environment

Kang, Deok-Hee,Choi, Hoan-Suk,Choi, Sang-Gyu,Rhee, Woo-Seop The Korea Contents Association 2017 International Journal of Contents Vol.13 No.1

Recently, the Social Internet of Things (IoT), the follow-up of the IoT, has been studied to expand the existing IoT services, by integrating devices into the social network of people. In the Social IoT environment, humans, devices and digital contents are connected with social relationships, to guarantee the network navigability and establish levels of trustworthiness. However, this environment handles massive data, including social data of humans (e.g., profile, interest and relationship), profiles of IoT devices, and digital contents. Hence, users and service providers in the Social IoT are exposed to arbitrary data when searching for specific information. A study about the recommender system for the Social IoT environment is therefore needed, to provide the required information only. In this paper, we propose the Social correlation group based Recommender System (SRS). The SRS generates a target group, depending on the social correlation of the service requirement. To generate the target group, we have designed an architecture, and proposed a procedure of the SRS based on features of social interest similarity and principles of the Collaborative Filtering and the Content-based Recommender System. With simulation results of the target scenario, we present the possibility of the SRS to be adapted to various Social IoT services.

Career maturity among children from economically disadvantaged families in Korea

Jung, Yunkyung,Kim, Jong-Il The Korea Contents Association 2012 International Journal of Contents Vol.8 No.4

The present study aims to explore career maturity and influencing factors among elementary schoolers from poor families in Korea. Data are from 249 welfare recipient children in 10 administrative districts of Incheon. Scores of the work attitudes subdomain was lower than other aspects of career maturity including planning, self-appraisal, and independence in career decision-making. In the full sample, those in the higher academic years showed greater career maturity, planning, and self-appraisal, and those with greater parent attachment showed higher levels of self-appraisal. In separate analyses by gender, parent attachment showed greater influence on girls' career maturity. Finding from the separate analyses on lower vs. higher academic years (i.e. grades) revealed that parent attachment and female were associated with career maturity among lower graders, while academic achievement was associated with career maturity, planning, and self-appraisal among those in higher graders. Findings lend support to parental involvement in career education. Poor children might have limited perceptions of career focused on satisfying economic necessities. Career education should pay attention in helping them expand perceptions of the values of career.

A-List Twitter Users in Korea's Political Tweet Sphere

Hsu, Chien-Leng,Park, Ji-Young,Park, Han-Woo The Korea Contents Association 2012 International Journal of Contents Vol.8 No.3

This study examines A-list users in the Twitter network of National Assembly members in South Korea. An examination of some socio-geographic characteristics of these A-list users indicates that the distribution of these users in terms of their geographic location and social status can be understood in the context of the Korean social structure. In addition, an examination of Tweets posted by these users shows that half of these users had negative attitudes toward the current administration and that some Tweets contained emotional terms.

How E-learning Business for Teens Has Evolved in Korea: The Case of MegaStudy

Kim, Ji-Whan,Kim, Seong-Cheol The Korea Contents Association 2012 International Journal of Contents Vol.8 No.1

Since MegaStudy started e-learning business for Korean high school students, the Korean e-learning industry began to expand and steadily gain attention. This paper focused on the analysis of the development of the Korean e-learning business for teens and the growth of MegaStudy. The three institutional mechanisms were used to examine the factors that aided the development of the business. The regulatory mechanism was the government policy to prevent the expansion of the offline private education sector, which greatly aided the growth of the e-learning business. The mimetic mechanism was the notion to mimic the characteristics of the Korean e-business initiatives. The normative mechanism involved the widespread social norm suggesting that every student should be given an equal opportunity of private education. This paper also examined the case of MegaStudy as a successful case of the e-learning companies. It analyzed the business model of MegaStudy, which is based on its advantage as the front-runner and its high-quality contents and services.

Server-Based User-Created Contents Processing System

Yeo, Myung-Ho,Kim, Hak-Sin,Roh, Kyu-Jong,Cho, Yong-Jun,He, Li,Kim, Hak-Cheol,Bok, Kyung-Soo,Yoo, Jae-Soo The Korea Contents Association 2008 International Journal of Contents Vol.4 No.4

The web 2.0 is leading a rapid change of internet services. The UCC(User Created Contents) service is one of the representative internet services with web 2.0 paradigm. In this paper, we design and implement the UCC services prototype system for image and video. The proposed system does not need to install ActiveX and client programs on devices of users to edit their contents. All processes for editing UCC are conducted on the server. Our proposed system consists of the two components such as the multimedia editing subsystem and the metadata management system. They provide the API to UCC service developers or vendors. The multimedia editing subsystem supports editing for image and video, and the streaming services of video. The metadata management subsystem supports the metadata management and retrieval of image and video.

Effects of Health Care Expenditure on the Infant Mortality Rate and Life Expectancy at Birth in Korea

Rhee, Hyun-Jae The Korea Contents Association 2012 International Journal of Contents Vol.8 No.3

This study examines whether the infant mortality rate and life expectancy at birth are affected by health care expenditure in Korea. It can be provisionally concluded that the infant mortality rate tends to be affected by the health system itself in the long-run, whereas life expectancy at birth is immediately affected by health-related facilities such as the number of physicians and number of hospital beds in the short-run. Therefore, the health-related system should be well established to improve the infant mortality rate. On the contrary, physical capital such as life-prolonging medical technologies has to be accumulated to improve life expectancy at birth.

Video Content Indexing using Kullback-Leibler Distance

Kim, Sang-Hyun The Korea Contents Association 2009 International Journal of Contents Vol.5 No.4

In huge video databases, the effective video content indexing method is required. While manual indexing is the most effective approach to this goal, it is slow and expensive. Thus automatic indexing is desirable and recently various indexing tools for video databases have been developed. For efficient video content indexing, the similarity measure is an important factor. This paper presents new similarity measures between frames and proposes a new algorithm to index video content using Kullback-Leibler distance defined between two histograms. Experimental results show that the proposed algorithm using Kullback-Leibler distance gives remarkable high accuracy ratios compared with several conventional algorithms to index video content.