• Journal of KIISE
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• v.44 no.3
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• pp.314-322
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• 2017

In MMORPG (Massively Multiplayer Online Role-Playing Game), users advance their own characters to get to the maximum (max) level by performing given tasks in the game scenario. Although it is crucial to retain users with high levels for running online games successfully, little efforts have been paid to investigate them. In this study, by analyzing approximately 60 million in-game logs of over 50,000 users, we aimed to investigate the process through which users achieve the max level and churn of such users since the moment of achieving the max level, and determine possible indicators related to churn after the max level. Based on the result, we can predict churn of the max level users by employing behavioral patterns before the max level. Moreover, we found users who are socially active and communicate with many people before the max level are less likely to leave the service (p<0.05). This study supports that communication patterns are important factors for persistent usage of the users who achieve the max level, which has practical implications to guide elite users on enjoying online games in the long run.

• 한국벤처창업학회:학술대회논문집
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• 2017.04a
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• pp.25-25
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• 2017

전국에 1,000여개의 다문화 기관들이 활동 중이다. 그중 정부주도형인 여성가족부 지정 다문화가족지원센터 210여 곳을 제외한 나머지 기관들은 대부분 정부 민간 혼합형이거나 민간주도형 기관들이다. 정부주도형 기관들은 중앙정부와 지방자치단체로부터 운영비가 지원되지만 정부 민간 혼합형이나 민간주도형 기관들은 운영비를 기부금 또는 후원금에 의존한다. 그러나 경제위기의 도래로 기부금이나 후원금이 급감하는 상황에서 정부 민간 혼합형이나 민간주도형 기관들의 자립은 더욱더 어려워질 전망이다. 이러한 전망과는 달리, 지원 대상들과 다문화이슈는 지금보다 훨씬 더 늘어날 전망이다. 국내 이주민의 수는 매년 증가추세이다. 향후 2050년이 되면 전체인구의 10%가 외국인이라는 전망도 나온다. 외국인의 정주화 그리고 가족이민 증가에 따른 상이한 종교와 문화에 대한 편견 없는 이해와 대화가 강조될 것이며, 학교교육정책, 직업양성, 노동시장정책, 동등한 노동조건과 사회보장 요구, 사회적 차별에 대한 계몽정책 등 다양한 다문화 이슈도 부각될 것이다. 이처럼 다양한 분야에서 다문화 이슈를 가장 잘 다룰 수 있는 민간주도형 다문화기관의 자립 여부는 다문화 지원정책의 성패와도 연결된다고 볼 수 있다. 결국 민간주도형 다문화기관이 지금의 운영구조를 개선하고 재정적 자립을 확보하기 위해서는 다문화 관련 비즈니스모델 개발을 통해 다문화 기관들이 스스로 자립할 수 있는 사회적기업에 관심을 가질 수밖에 없다. 사천다문화통합지원센터는 비영리민간단체로 지난 13년 동안 창조적인 다문화 사업들을 추진하여 괄목할만한 성과를 거두었다. 그러나 일반 기부금이나 후원금으로 운영비를 충당하고 있는 상황에서 자립 기반 구축을 위한 비즈니스 모델 개발은 필수적이었다. 마침내 요리조리아시아 협동조합을 만들어 청소년 공정여행 프로그램인 세계로여행학교와 아열대채소 농장을 운영중에 있다. 뿐만 아니라 기업의 CSR(Corporate Social Responsibility) 해외공헌사업도 위탁받아 운영하고 있다. 본 연구에서는 사천다문화통합지원센터가 그동안 진행해 온 청소년 공정여행과 아열대채소 농장을 다문화기관의 비즈니스 모델적 측면에서 사례 분석한 후, 벤치마킹을 통해 민간주도형 다문화기관들로 확대시킴으로써 사회혁신의 기회를 증대시킬 방안을 제시하였다.

• Journal of Digital Convergence
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• v.16 no.8
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• pp.351-359
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• 2018

This study tries to figure out the precarious communication types between parents and their children. For this, the linguistic behavioral characteristics of the main characters in the movie "Daughter" were extracted from their dialogues with the matrix analysis and were conceptualized. These conceptual features were analyzed in the convergence way combined with Transactional analysis and Satir's communication theory. The result shows that the dysfunctional communication between parents and children deteriorates their relation and even could collapse it. Thus. for their whole relation, it is important that they keep the functional communication between them. The study suggested the need for the parental education and youth personality education which let them know how to facilitate their communication.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2001.11b
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• pp.91-94
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• 2001

MPEG-4 시스템은 장면 자체를 하나의 구성 요소로 여기는 기존의 시스템과는 달리, 그 장면을 구성하는 부호화 또는 복호화된 A/V 객체(Audio/visual Objects)들을 하나의 단위로 인식하여, 다양한 멀티미디어 컨텐츠의 장면을 구성(Scene Composition)하고 표현 하는 것에 그 특징이 있다. 이러한 MPEG-4 시스템의 객체 기반 특징은 다양한 사용자와의 대화성(Interactivity)을 가능하게 하며 , 또한 편리한 컨텐츠 편집 및 재사용 등이 가능하기에 차세대 디지털 방송 컨텐츠 제작에 중요하게 활용될 전망이다. 객체 기반 A/V 편집 도구는 MPEG-4를 기반으로 차세대 디지털 방송 컨텐츠 제작을 용이하게 하기 위한 제작/편집 도구로써 , 장면을 표현하기 위하여 BIFS(Binary Format for Scene description)와 XMT(eXtensible MPEG-4 Textual format) 포맷을 모두 사용하고 있다. BIFS 포맷은 저작된 결과물을 바이너리 형태로 표현하기 때문에, 저작된 결과물을 전송하는 데에는 용이하나, 중간에 저작된 결과물을 확인하기 어렵고, 또한 기존의 다른 어플리케이션과의 상호 작용(Interoperability)과 교환(Exchange)에도 어려움이 따른다. 이에 반해, XMT는 차세대 마크업 언어로 각광 받고 있는 XML 에 그 기반을 두고 있기에 저작된 결과물을 제작자가 쉽게 저작물을 이해할 수 있으며, SMIL 과 X3D 같은 다른 어플리케이션과의 상호작용과 교환 또한 용이하게 한다 XMT는 기술 방법에 따라 XMT-A 와 XMT-0 두 가지 형태가 있으며, XMT-A 포맷은 VRML에서 발전한 X3D(extensible 3D)를 바탕으로 MPEG-4 시스템의 특징들을 수용하여 구성되고 BIFS와 일대일로 대응된다. 반면에 XMT-0는 멀티미디어 문서를 웹문서로 표현하는 SMIL 2.0 을 그 기반으로 하였기에 MPEG-4 시스템의 특징보다는 컨텐츠를 저작하는 제작자의 초점에 맞추어 개발된 형태이다. XMT를 이용하여 컨텐츠를 저작하기 위해서는 사용자 인터페이스를 통해 입력되는 저작 정보들을 손쉽게 저장하고 조작할 수 있으며, 또한 XMT 파일 형태로 출력하기 위한 API 가 필요하다. 이에, 본 논문에서는 XMT 형태의 중간 자료형으로의 저장 및 조작을 위하여 XML 에서 표준 인터페이스로 사용하고 있는 DOM(Document Object Model)을 기반으로 하여 XMT 문법에 적합하게 API를 정의하였으며, 또한, XMT 파일을 생성하기 위한 API를 구현하였다. 본 논문에서 제공된 API는 객체기반 제작/편집 도구에 응용되어 다양한 멀티미디어 컨텐츠 제작에 사용되었다.

• The Journal of the Korea Contents Association
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• v.17 no.6
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• pp.415-423
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• 2017

Patient's trust in their physician is crucial for relationship between patients and their doctors, treatment outcomes such as satisfaction and adherence or revisits. The purpose of this study is to investigate the meaning of trusting the doctor in the doctor - patient relationship and to examine it through the multidimensional measurement tools. Using the convenience sampling method, 328 respondents in their 20s or older who had visited the hospital within 6 months were used as the analysis data. As a result of the research, it is difficult to define the meaning of the patient's trust in the doctor, but it can be summarized as having at least four meanings. First, the doctor should listen carefully to the patient's story and show communication behaviors expressing interest and forming an atmosphere of dialogue. Second, the patient's health should be considered first to understand the patient and empathize with the patient. Third, it should be honest in the examination and procedures related to the treatment as well as the technical ability. Finally, we should try to cooperate with patients.

• KOMUNHWA
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• no.58
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• pp.119-136
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• 2001

This study aims to analyze the sources of restoring of Geungnakjeon(極樂殿) and creation of the buddhist mural paintings(後佛壁畵) of Muwisa(無爲寺) in Gangjin(康津). Muwisa Geungnakjeon was constructed in 1430(in the twelfth year of King Sejong's(世宗)reign). At that

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.966-973
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• 2013

It has been frequently asked the question not only by academicians but also by practitioners whether employment flexibility can be compatible with employment stability. This study tries to find the answer by investigating the German model of employment flexibility practices and job stability policies. The German model of employment flexibility is mainly based on working-time accounts and short-time work programs. It is found that social partnership and government support have played a crucial role to stabilize German labour market. Workers, employers, and government have harmoniously interplayed in order for overcoming the economic hardship. Adapting the German experience of overcoming economic turbulence by introducing employment flexibilization can help Korean firms. However, it is important to recognize that there are some differences in practices of labour relations, cultural and social background while applying the German practices.

• Journal of the Korean Society for information Management
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• v.35 no.3
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• pp.215-244
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• 2018

The role of archives and records centers is expanding, however many potential users are not aware of the importance of the records and archives. As a method to improve the archival information services to users, in this study, we developed chatbot that supports the interaction between the users and the archives and records centers. Thus we examined the specific development procedures and methods, analyzed user requests and questions of the archives and records center of Myongji university as a case, and conducted a logical structure design for chatbot development. After building the chatbot based on IBM Watson Conversation and Kakaotalk messenger, we were able to find how the chatbot interacted with the users through a pilot run. Based on the experience of developing information service chatbot, the implications related the introduction of the chatbot were suggested which include determination of the level of the chatbot, analysis of the user requests, selection of the tool for the chatbot, and syntax setting for the conversational interaction.

• Journal of KIISE:Software and Applications
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• v.27 no.4
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• pp.412-421
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• 2000

In spite that the main contents of mathematical and scientific learning are understanding principles and their applications, most of existing educational softwares are based on rote learning, thus resulting in limited educational effects. In the artificial intelligence research, some progress has been made in developing automatic tutors based on proving and simulation, by adapting the techniques of knowledge representation, search and inference to the design of tutors. However, these tutors still fall short of being practical and the turor, even a prototype model, for learning problem solving is yet to come out. The geometry problem-solving tutor proposed by this research involves dynamic inference performed in parallel with learning. As an ontology for composing the problem space within a real-time setting, we have employed the notions of propositions, hypotheses and operators. Then we investigated the mechanism of interactive learning of problem solving in which the main target of inference involves the generation and the test of these components. Major accomplishment from this research is a practical model of a problem tutor embedded with a series of inference techniques for algebraic manipulation, which is indispensable in geometry problem solving but overlooked by previous research. The proposed model is expected to be applicable to the design of problem tutors in other scientific areas such as physics and electric circuitry.

• Informatization Policy
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• v.20 no.4
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• pp.51-70
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• 2013

The flaming which is defined as posting deliberately hostile messages online has been perceived as one of the most dangerous behaviors on the Internet. Although the previous research on flaming focused on finding the effects of anonymity and individual differences, more comprehensive explanation is still needed. This research attempted to find social variables which affect the attitude toward and the act of flaming based on the differences between high school and college students. Findings show that both high school and college students are strongly influenced by their affiliated groups in the intention to commit online flaming and past experiences of the number of the acts of flaming. At the same time, vicarious learning was positively associated with high school students, but direct utterance was positively associated with college students. The implications of the study was also discussed.