• Journal of Korea Multimedia Society
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• v.22 no.12
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• pp.1438-1446
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• 2019

Recently, the number of mobile users as well as high-speed Internet user has been increasing rapidly. Moreover, traffic is growing fast as services that provide real-time content such as Youtube and Netflix become popular. The problem of traffic control in real-time content services is important because many people use cell phones to receive real-time content. In this regard, the field of CCN is currently being studied. We studied the mobility of nodes among CCN research fields. Node mobility can be divided into three categories : consumer mobility, intermediate node, and provide mobility. In this paper, we propose Mobility Node Support(MD-INS) to support the intermediate-node mobility in CCN real-time services. Experimental results show that the proposed scheme shows better performance than CCN in terms of service disconnection time and packet loss.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2010.07a
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• pp.325-326
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• 2010

Web2.0 서비스가 늘어나면서, 집단의 지혜를 바탕으로 한 개인화 서비스에 대한 관심이 증가하고 있다. 유튜브(youtube) 등 에서 태그를 공유함으로써 유용한 정보에 쉽게 접근할 수 있도록 하고 있다. 이에, 본 연구에서는 사용자가 생산한 학습콘텐츠를 바탕으로 개인화 서비스를 위한 추천시스템에 관한 연구를 진행하고자 한다. 이를 위해 교육용 UCC 사이트에서 정보추천을 위해 제공하는 속성들을 바탕으로 Tag와 Rating을 이용한 UCC분류기반 추천시스템을 제안하고, 이를 위한 메타데이터와 추천시스템을 설계하고자 한다.

• Korea Journal of Hospital Management
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• v.16 no.3
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• pp.75-91
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• 2011

The purpose of this study is to compare the characteristics of hospital websites across four nations(e.g., South Korea, Singapore, Thailand and India). We selected English websites of 58 hospitals with JCI accreditation. For the analysis of websites, we developed assessment tool with four domains(e.g., contents, convenience, design, interactivity). The results showed that Korean hospitals provided more channels for appointment on the website compared to other countries. In contrast, foreign hospitals used actively SNS(e.g., Facebook, Twitter or Youtube) on the websites. They also provided more information on diverse services(e.g., airport pickup services, treatment costs, consultation services).

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.01a
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• pp.189-190
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• 2011

Recently people have increased to climb mountain. Owing to developing IT technology, the number of people using smart phone have increased remarkably as well. In this context, the Korea Forest Service has implemented the project of Mountain Climbing Information Public Service(MCIPS). The purpose of the MCIPS is to support climbing safely based on a trail map of spatial data of GIS(geographic information system). The customer will be able to access the MCIPS through n-screen(IP-TV, Web Site, Smart phone, Galaxy tab) provided a broadcasting and telecommunication convergence service. In addition, the MCIPS would support two-way communication through connecting to Twitter and Youtube. The MCIPS will make the customer fun using Augmented Reality(AR) of Smart phone(Android) and contribute to protecting people from mountain accidents.

• Knowledge Management Research
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• v.19 no.1
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• pp.133-146
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• 2018

This study develops an Education framework for users who need public open data for workplace etiquette education in a timely manner by mobile application. It facilitates utilizing efficiently Workplace etiquette contents that scattered in various platforms such as blogs, Youtube and web-sites run by private education agencies. Furthermore, it makes Public open data for workplace etiquette through gathering 'metadata', which is a comprehensive source of workplace etiquette. Accordingly, framework changes recognition about necessity of workplace etiquette education positively and suggests method that can promote effective workplace etiquette education. If the system in the study can provide public open data of workplace etiquette education, many young job applicants and workers will have a proper perception on it and sound workplace etiquette culture will be settled in the companies. Public data has been rising as a vital national strategic asset these days. Hopefully the public data will pave a way to discover the blue ocean in the market and open up a new type of businesses.

• Journal of Information Technology Services
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• v.13 no.3
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• pp.77-92
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• 2014

Korean entertainment companies like SM entertainment, YG and JYP contribute enormously to the recent K-pop fever. They expand their businesses aggressively to foreign markets which has been successful. This paper seeks to find out their precise strategies to succeed in the global market. Our study focus on SM entertainment which manages successively in the Asian market. As a result, one of their successful strategies on the global market is localization. They rearrange a group with in the members to suit into the local market : for instance, Super Junior, representative boy group, has rearranged and reformed to Super Junior M (mandarin), Super Junior happy (for Japan market), etc. Coopration with SNS (Social Network Service) is another successful strategies of SM Entertainment : page views of K-pop on Youtube achieved more than 0.8 billion in 2013. Furthermore, for marketing, many members play an advertizing model for global products.

• CELLMED
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• v.6 no.2
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• pp.8.1-8.2
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• 2016

The purpose of this article is to argue that Arirang, Korean traditional music, could be used for healing purposes for Koreans. Music may be a medicine for curing both the body and mind. That is the soul of folksong. Arirang is a representative folksong in Korea. Koreans thought that listening to Korean traditional songs and singing them have healing powers because it makes people happier. When Koreans listen to Arirang, slowly as if they are mass hypnotized, Koreans calmed down because they think of mother's bosom while listening to Arirang. Also, Koreans find comfort in listening and singing to Arirang. The song's tune is catchy and its lyrics are moving. The song of Arirang was sung from long ago by Koreans. Therefore, it will continue forever as long as Koreans exist.

• CELLMED
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• v.6 no.2
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• pp.10.1-10.3
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• 2016

Arirang has quite a long history in Korean music. Arirang means the heart is tingling. Jeongseon Arirang is well-known Arirang from the Gangwon province, so it shares certain features of Dongbu minyo (folksong), including the Menaritori. Jeongseon Arirang of Ok-sim Kim is pure and innocent. She has an ingenuous country voice. It is a kind of hope that provides our mental strength. Mental power is as important to our health as a eating right. Jeongseon Arirang sung by Ok-sim Kim is Seoul style of rhythmic pattern and melody. Jeongseon Arirang is designated as the Intangible Cultural Property No. 1 by the Gangwon province in 1971. This article outlines the emotional biography of Jeongseon Arirang of Ok-sim Kim relationship.

• Annual Conference of KIPS
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• 2017.11a
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• pp.865-868
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• 2017

일반적으로 비디오로부터 캡션을 생성하는 작업은 입력 비디오로부터 특징을 추출해내는 과정과 추출한 특징을 이용하여 캡션을 생성해내는 과정을 포함한다. 본 논문에서는 효과적인 비디오 캡션 생성을 위한 심층 신경망 모델과 그 학습 방법을 소개한다. 본 논문에서는 입력 비디오를 표현하는 시각 특징 외에, 비디오를 효과적으로 표현하는 동적 의미 특징과 정적 의미 특징을 입력 특징으로 이용한다. 본 논문에서 입력 비디오의 시각 특징들은 C3D, ResNet과 같은 합성곱 신경망을 이용하여 추출하지만, 의미 특징은 본 논문에서 제안하는 의미 특징 추출 네트워크를 활용하여 추출한다. 그리고 이러한 특징들을 기반으로 비디오 캡션을 효과적으로 생성하기 위하여 선택적 주의집중 캡션 생성 네트워크를 제안한다. Youtube 동영상으로부터 수집된 MSVD 데이터 집합을 이용한 다양한 실험을 통해, 본 논문에서 제안한 모델의 성능과 효과를 확인할 수 있었다.

• Broadcasting and Media Magazine
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• v.24 no.4
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• pp.120-131
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• 2019

고해상도 영상 서비스 증가와 Youtube, Netflix와 같은 OTT 중심의 동영상 시청 환경 변화에 따라, 기존 대비 높은 압축률을 목표로 하는 새로운 비디오 코덱 표준들이 활발히 개발되고 있다. 그 중 가장 대표적인 것은 MPEG에서 개발 중인 VVC(Versatile Video Coding)로 기존 HEVC(High Efficiency Video Coding) 대비 2배의 압축률 달성을 목표로 하고 있다. 하지만 압축률 향상을 위한 새로운 부호화 도구들의 복잡도가 점점 증가함에 따라, 하드웨어 복호화기 구현시 많은 어려움이 있을 것으로 예상된다. VVC 표준화에서는 이런 어려움을 극복하기 위하여, 하드웨어 구현 관점에서 부호화 도구들을 최적화하고 이를 사용함에 있어 몇가지 제약들을 정의하고 있다. 본 논문에서는 현재 VVCCD 및 VTM 6.0 소프트웨어 기준으로 하드웨어 복호화기 구현을 고려하여 채택된 부호화 도구 및 제약에 대하여 분석한다.