• Journal of the Korean Society for information Management
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• v.23 no.4 s.62
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• pp.89-110
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• 2006

Life science is one of the most important fields which have direct influence on human life. Many domestic life scientists in the industries, educational organizations and research institutes have been producing important results in a variety of forms such as papers, research notes, presentation materials, books and teaching materials. Open Archiving Community has been constructed in order to share and exchange research information related to life science between researchers. The domestic life scientists can acquire valuable information through the community quickly and efficiently. In this study, the community system has been designed and implemented to provide free access to all data including metadata registry of the bibliographic information on life science and research results accumulated by researchers of their own accord. The community system also has been designed and implemented based on Web 2.0 and provides users with BBS by subjects.

• Journal of the Korean Society for information Management
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• v.31 no.4
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• pp.161-178
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• 2014

Recently, many information services allow users to collaborate to produce and use information. Sharing information is also important for users who have similar taste or interest. As various channels are available for users to share their experiences and knowledge, users' data have also been accumulated within the information services. This study collected movie lists made by users of IMDB service. Co-word analysis and ego-centered network analysis were adapted to discover relevant information for users who chose a specific movie. Three factors of movies including movie title, director and genre were used to present related movie information. Movie title is an effective feature to present related movies with various aspects such as theme or characters and the popularity of directors affects on identifying related directors. Genre is not useful to find related movies due to the complexity in the topic of a movie.

• Journal of the Korean Society for information Management
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• v.31 no.2
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• pp.173-188
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• 2014

This research aims to analyze empirically the effects of learners' knowledge sourcing behavior on the knowledge utilization outcomes in a social learning community. This kind of virtual community is of service to users who not only produce but also share a variety of valuable knowledge which is created based on relationships and interactions among learners. In order to conduct the study, a group of learners was made of 55 undergraduate students who were majoring in social science. The data was collected by online survey at the end of the term and multiple regression methods have been used for empirical analysis. The study shows that dyadic knowledge sourcing and published knowledge sourcing both have significant effects on knowledge reuse and knowledge adaptation. In addition, knowledge adaptation and knowledge innovation were affected by group knowledge sourcing. The research results help to select appropriate knowledge sourcing behavior depending on one's purpose of knowledge use.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.9
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• pp.1028-1038
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• 2011

A blog has significant effect as a new online medium and as a tool to share information with its powerful networking function. Blogs are established based on personal experience and their impact is stronger than conventional media in terms of informativeness, credibility and interactivity. Such characteristics of blogs lead to blog commitment (a phenomenon that has behavioral consequences) that eventually influences consumer fashion purchase behavior. The more a consumer is interested in fashion and seeks diverse information from a wide range of media, the more personally committed they become to certain blogs; in addition, they will also post the results of their fashion product purchases on their blog to further create and reproduce information. This research discovers how blog commitment affects fashion product purchase behavior and information reproduction activity among consumers as well as explores the impact of blog characteristics and information variety seeking by individual consumers on these factors. The data was collected from 428 adults who purchased a fashion product based on information they found on a blog. The results are as follows. First, blog characteristics are composed of accessibility, interactivity, credibility of the information, and informativeness. Second, in terms of the blog commitment, informativeness, credibility, and consumer information diversification (respectively), turned out to have positive effects; in addition, accessibility and credibility had positive effects for corporate blogs. The comparison between private and corporate blogs showed that consumers tend to be more committed to private blogs. Third, in terms of the brand attitude, private/corporate blog commitment, credibility, and consumer information diversification (respectively) had a positive influence. Fourth, blog characteristics and consumer information diversification led consumers (through private/corporate blog commitment) to form a favorable attitude towards the brand and purchase products that resulted in information reproduction of the purchased product.

• The Journal of the Korea Contents Association
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• v.8 no.5
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• pp.9-18
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• 2008

Web-services have originally been devised to share information as open services. In connection with it, hacking incidents have surged. Currently, Web-log analysis plays a crucial clue role in detecting Web-hacking. A growing number of cases are really related to perceiving and improving the weakness of Web-services based on Web-log analysis. Such as this, Web-log analysis plays a central role in finding out problems that Web has. Hence, Our research thesis suggests Web-DoS-hacking detective technique In the process of detecting such problems through SOM algorithm, the emergence frequency of BMU(Best Matching Unit) was studied, assuming the unit with the highest emergence frequency, as abnormal, and the problem- detection technique was recommended through the comparison of what's called BMU as input data.

• Journal of Labour Economics
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• v.27 no.2
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• pp.1-27
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• 2004

The share of self-employment shows a downward trend until 1990 and then an upward trend since then. The upward trend is mainly due to more employers and more male self-employed, which implies that self-employment plays a significant role as an alternative form of employment. This paper examines whether self-employment can be a bridge between no work and wage work in the processes entering into or exiting labor market, and if so, what determines the choice of self-employment as a bridge, using the data from the Korea Labor and Income Panel Survey(Wave 1 to Wave 5). Empirical analysis employing the probit model shows that the older, female, the less educated, and persons with bad health are more likely to choose self-employment as a bridge in the exit process and that they are less likely to choose it as a bridge in the entry process. Business cycle has a statistically significant negative effect on its role of bridge employment in the exit process but not in the entry process. The result implies that, in the ageing society, labor market policy should consider self-employment as a better alternative than wage work for the aged.

• Health Policy and Management
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• v.26 no.3
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• pp.172-184
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• 2016

Background: The objective of this study was to examine the effect of occurrence and reoccurrence of catastrophic health expenditure (CHE) on transition to poverty and persistence of poverty in South Korea. Methods: The data of the year 2008-2011 from the Korea Health Panel were used. CHE was defined as the share of total health expenditure in a household out of a household's total income at various threshold levels (more than 5%, 10%, 15%, and 20%). The effect of catastrophic expenditure on transition to poverty and persistence of poverty was analyzed through multivariate logistic regression. Results: The shares of households facing CHE at various threshold levels have increased gradually with 37.7%, 21%, 13.1%, and 9.5% in 2011. Households facing CHE were more likely to experience transition to poverty at thresholds level of more than 5% and 20% in 2010 set. Households facing CHE seemed to experience persistence of poverty, but it was not statistically significant. About 40% of households facing CHE in 2009 encountered another shock of CHE in 2010. Households without CHE seemed to experience more transition to poverty and persistence of poverty, but it was not statistically significant. For household with multiple CHE, those with medical aid were more likely to experience transition to poverty with statistical significance, but the statistical significance disappeared in case of persistence of poverty. Conclusion: The Korean health system needs to be improved to serve as a social security net for addressing transition to poverty and persistence of poverty due to facing CHE.

• Journal of the Korean Society for Library and Information Science
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• v.46 no.4
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• pp.5-25
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• 2012

The purpose of this study is to develop a measurement tool for the quality of information commons. Information commons is a physical, technological, social, and intellectual place where library users can experience various educational, research, and cultural activities. It is recently gaining popularity and several libraries have implemented it to help users share knowledge and interact with each other. It also intends to provide a place for collaboration, learning, and rest. Despite its benefits and usefulness, there is no measurement tool explicitly designed for the quality of information commons. This study used in-depth personal interview, compared prior studies, and conducted a pilot study to elicit library users' perceptions on information commons and factors influencing on the perceived quality of information commons. Groups of initial items were emerged through classifying and clustering key concepts in the data. Then, the validity of the items were verified through a pilot study. The findings of this study will be useful for developing more reliable and valid survey measurement tool.

• Journal of the Korean Regional Science Association
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• v.33 no.1
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• pp.3-16
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• 2017

This paper analyzed 16 regional total factor energy efficiency (TFEE) of the Korean manufacturing sector using data envelopment analysis method for the period of 2005-2013. According to the empirical results, it is necessary to use TFEE as well as partial energy efficiency defined by the ratio of energy usage to output (energy intensity) when we compare energy efficiency. Secondly, TFEE in the Korean manufacturing sector is quite different across 16 regions. For example, Gangwon province should improve energy efficiency by 55% compared to Seoul, Gwangju, Ulsan, and Gyeongbuk which are located on production frontier. Furthermore, the estimation of panel tobit regression model showed that the higher non fossil fuel using, the higher production share of large-sized firms, the lower energy intensity, and the lower capital-labor ratio could have positive effect on TFEE.

• Journal of Korean Society of Transportation
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• v.26 no.6
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• pp.93-101
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• 2008

With a spread of mobile devices, the growing trend of integrating wireless communications technologies into transportation systems is advanced. In particular, vehicular ad hoc networks (VANETs) enable vehicles to share traffic information that they have through intervehicle communications. This research focused on the design of an integrated transportation and communication simulation framework to build an environment that is more realistic than previous studies developed for studying VANETs. Developing a VANET-based information model, this research designed an integrated transportation and communication simulation framework in which these independent simulation tools not supporting High Level Architecture (HLA) were tightly coupled and finely synchronized. As a case study, a VANET-based traffic information system was demonstrated based on a real road network and real traffic data. The experiment results showed that the simulation framework was well integrated. The simulation framework designed in this study is expected to contribute to developing the environment to experiment a wide range of VANET applications.