• The Journal of the Korea Contents Association
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• v.9 no.10
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• pp.122-129
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• 2009

MMORPG Quest plays a strong role of motivation through compensation related with Avatar such as items and experience points rather than a role of story transfer. This situation finally made MMORPG become a difficult game that players should study the compensation of Quest for growth of a character, so it causes fixation of the user class. As a solving method of the fixation of the users, the possibility of Quest capable of strengthening play motive of various users through clarification of motivation structure of the Quest play and pluralistic understanding about players was investigated. This is a direct response to the user within the game system or how to use the player log information. The pluralistic understanding method of players will have values as a tool that can guarantee the objectivity and actual production of the data collected utilizing.

• Journal of Information Technology Applications and Management
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• v.24 no.1
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• pp.33-43
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• 2017

The content curation service through big data analysis is receiving great attention in various content fields, such as film, game, music, and book. This service recommends personalized contents to the corresponding user based on user's preferences. The existing book curation systems recommended books to users by using bibliographic citation, user profile or user log data. However, these systems are difficult to recommend books related to character names or spatio-temporal information in text contents. Therefore, in this paper, we suggest a personalized book curation system based on integrated mining of a book. The proposed system consists of mining system, recommendation system, and visualization system. The mining system analyzes book text, user information or profile, and SNS data. The recommendation system recommends personalized books for users based on the analysed data in the mining system. This system can recommend related books using based on book keywords even if there is no user information like new customer. The visualization system visualizes book bibliographic information, mining data such as keyword, characters, character relations, and book recommendation results. In addition, this paper also includes the design and implementation of the proposed mining and recommendation module in the system. The proposed system is expected to broaden users' selection of books and encourage balanced consumption of book contents.

• Korean Journal of Community Nutrition
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• v.12 no.4
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• pp.462-476
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• 2007

This study aimed to develop a nutrition education internet program for correcting the eating-out behaviorial problems of youth. A survey was performed to investigate the eating-out behavior patterns of youth by questionnaires. A nutrition education program was developed on the basis of the survey results, and evaluated by teenagers. The results of the developed homepage are summarized as follows: The contents of this program (www.health14.net) consist of '${\times}$ Health (Teenager, My Health, Healthy life, Beautiful life)', '+ Nutrition (To find slow foods, Fast foods campaign, Selecting fast foods, The best menu for eating-out, Recipes for health, Golden bell nutrition quiz)', '${\div}$ Information (Diet mini-homepage, Q & A, My knowhow, Game, Community)' and 'Basic Menu (home, Log in, Information and news, Mini-homepage, Site map, Free bulletin board)'. It can be used as educational material for dietary behaviorial changes in school. Also teachers and parents could get information on eating-out menus. Through this site, we anticipate contributing to nutritional health promotion by correcting the eating-out habits of youth.

• Information Systems Review
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• v.20 no.1
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• pp.137-158
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• 2018

Online platforms recently expanded their connectivity through an authing service. The growth of authing services enabled consumers to enjoy easy log in access without exerting extra effort. However, multiple points of access increases the security vulnerability of platform ecosystems. Despite the importance of balancing authing service and security, only a few studies examined platform connectivity. This study examines the optimal level of authing service of a platform and how authing strategies impact participants in a platform ecosystem. We used a game-theoretic approach to analyze security problems associated with authing services provided by online platforms for consumers and other linked platforms. The main findings are as follows: 1) the decreased expected loss of consumers will increase the number of players who participate in the platform; 2) linked platforms offer strong benefits from consumers involved in an authing service; 3) the main platform will increase its effort level, which includes security cost and checking of linked platform's security if the expected loss of the consumers is low. Our study contributes to the literature on the relationship between technology convenience and security risk and provides guidelines on authing strategies to platform managers.