• 디지털산업정보학회논문지
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• 제5권1호
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• pp.89-98
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• 2009

The existing mashup service providers have induced users to participate in their own made services and have grown their services by user participations and contributing contents. Recent services based on Web2.0 are called by 'Open (Content) Service' which means anyone can provide new services to the others without any of their own contents. But unfortunately the most of these days services are not opened. They just using mashups for increasing their service's traffics. We introduce the way to make a simple service to provide searching videos present it with extracted keyword from external content without our own contents at all. this show that how to combine the content with another contents or services.

• Journal of Information Technology Applications and Management
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• 제13권4호
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• pp.121-140
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• 2006

UDDI (Universal Discovery Description and Integration) Registry is used for Web Services registration and search. UDDI offers the search result to the keyword-based query. UDDI supports WSDL registration but it does not supports WSDL search. So it is required that contents based search and ranking using name and description in UDDI registration information and WSDL. This paper proposes a retrieval engine considering contents of services registered in the UDDI and WSDL. It uses Vector Space Model for similarity comparison between contents of those. UDDI registry information hierarchy and WSDL hierarchy are considered during searching process. This engine suppports two discovery methods. One is Keyword-based search and the other is template-based search supporting ranking for user's query. Template-based search offers how service interfaces correspond to the query for WSDL documents. Proposed retrieval engine can offer search result more accurately than one which UDDI offers and it can retrieve WSDL which is registered in UDDI in detail.

• 한국IT서비스학회지
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• 제12권1호
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• pp.115-130
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• 2013

This paper describes Cross reference services in Knowledge contents based on UCI. Cross references are effective features that can increase the value of the contents. Knowledge contents include academic papers, research reports, archives, historical and cultural heritage, and professional databases. Cross references are consists of reference-to and cited-by links which can be made by reference list in article. Some of cross reference services provided are considered. We designed cross reference services for knowledge contents in Korea and prototype services are provided. The reference linking service in the area of national R&D will enable the linking of heterogeneous information produced at different sources.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2008년도 하계종합학술대회
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• pp.663-664
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• 2008

With advent of IPTV services and availability of various web contents, users can enjoy various contents via internet. In order to effectively provide a large amount of web contents to users, personalized IPTV services are required to the user's sides. In this paper, we extend the current ATOM schema for personalized IPTV services and propose a IPTV service framework based on IPTV personalization.

• 대한임베디드공학회논문지
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• 제3권4호
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• pp.218-228
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• 2008

The convergence of broadcasting and telecommunication services is being accelerated by broadband networks, digital broadcasting and Web2.0. This paper describes the definition and service characteristics of IPTV as a representative of broadcasting and telecommunication convergence services. Especially, the changes of infrastructure and technology for IPTV2.0 are addressed in terms of the service features of mobility, intelligence and participation. IPTV2.0 shall be characterized by the open IPTV service based on Web2.0 and the mobile IPTV service over the heterogeneous networks employing various wireless/wired access technologies. The IP Multimedia Subsystem (IMS) and Service Delivery Platform (SDP) technologies are increasingly considered to support the personalization and openness. The mobility management technology is being evolved to provide QoS-guaranteed mobile communication services to users at anytime and anywhere. IPTV2.0 services and platforms are also anticipated to be core components to achieve knowledge-based ubiquitous society. IPTV2.0 contents are required to be integrated with the enhanced metadata to efficiently support search, selection, convergence and delivery of the contents. Moreover, those contents shall be enhanced to provide the scalable services which is adaptable to the network status and user preferences. Therefore, the networking technologies for IPTV2.0 should tightly cooperate with application services and adaptive contents. Those technologies will be developed to construct the ubiquitous content service platform considering the evolution of networks and various converged services.

• 디지털산업정보학회논문지
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• 제8권4호
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• pp.83-90
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• 2012

With the rapid growth of internet infrastructure, World Wide Web is evolving recently into various services such as cloud computing, social network services. It simply go beyond the sharing of information. It started to provide new services such as E-business, remote control or management, providing virtual services, and recently it is evolving into new services such as cloud computing and social network services. These kinds of communications through World Wide Web have been interested in and have developed user-centric customized services rather than providing provider-centric informations. In these environments, it is very important to check and analyze the user requests to a website. Especially, estimating user preferences is most important. For these reasons, analyzing web logs is being done, however, it has limitations that the most of data to analyze are based on page unit statistics. Therefore, it is not enough to evaluate user preferences only by statistics of specific page. Because recent main contents of web page design are being made of media files such as image files, and of dynamic pages utilizing the techniques of CSS, Div, iFrame etc. In this paper, large log analyzer was designed and executed to analyze web server log to estimate web contents preferences of users. With mapreduce which is based on Hadoop, large logs were analyzed and web contents preferences of media files such as image files, sounds and videos were estimated.

• 한국콘텐츠학회논문지
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• 제10권6호
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• pp.18-26
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• 2010

사용자 선호에 따라 적합한 정보를 제공해 주는 개인화서비스에 대한 많은 연구와 개발이 진행되어왔다. 특히 푸시서비스는 사용자의 적극적인 요구가 없더라도 사용자가 관심 있어 할만한 정보를 제공함으로써 사용자의 잠재요구를 충족시켜준다는 측면에서 경제적 효과가 클 것으로 예상되고 있다. 본 논문에서는 이러한 푸시서비스의 성능을 향상시키기 위한 방법으로 시맨틱웹 기반 푸시서비스 기법을 제안한다. 제안방법은 서비스의 콘텐츠 정보와 사용자의 선호정보를 각 서비스의 특성을 반영하는 서비스 온톨로지 상에서 기술되어지도록 함으로써, 의미적 연관성을 기반으로 콘텐츠를 추천할 수 있는 기반구조를 제공한다. 또한 시맨틱웹 기반 푸시서비스 시스템은 제안방법에 의해 기술된 정보를 기반으로 사용자에게 적합한 콘텐츠를 추천하는 기능을 제공한다. 제안방법은 기존 연구들에 비해 콘텐츠 정보 및 사용자 선호정보를 기술함에 있어 풍부한 표현이 가능하고, 의미적인 상호운용성을 제공한다는 장점이 있다.

• 한국IT서비스학회지
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• 제12권1호
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• pp.271-287
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• 2013

The rapid growth and dissemination of touch-based mobile devices such as smart phones and tablet PCs, gives numerous benefits to people using a variety of multimedia contents. Due to its portability, it enables users to watch a soccer game, search video from YouTube, and sometimes tag on contents on the road. However, the limited screen size of mobile devices and touch-based character input methods based on this, are still major problems of searching and tagging multimedia contents. In this paper, we propose WalkieTagging, which provides a much more intuitive way than that of previous one. Just like any other previous video tagging services, WalkieTagging, as a voice-based annotation service, supports inserting detailed annotation data including start time, duration, tags, with little effort of users. To evaluate our methods, we developed the Android-based WalkieTagging application and performed user study via a two-week. Through our experiments by a total of 46 people, we observed that experiment participator think our system is more convenient and useful than that of touch-based one. Consequently, we found out that voice-based annotation methods can provide users with much convenience and satisfaction than that of touch-based methods in the mobile environments.

• 가정과삶의질연구
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• 제27권3호
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• pp.201-212
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• 2009

The purpose of research is to investigate patterns and diffusion of consumer participation on Internet UCC based on digital contents services. A sample survey of internet users was conducted, responses were collected from 629 respondents and consumer streaming data were analyzed. Some of the practical implications of the results are follows. Research can find out that patterns of user participation in UCC. The major genres of UCC are like daily lives of individuals, humors, parodies of star entertainers and types of contents like still pictures or images, texts are relatively highly generated comparing with multimedia UCC. Although participants have been being increased in UCC recently, the consumers as prosumers who are classified in contents generating group are ten percents at the most. In generating community-based UCC such as posting answers of questions and activities in Blog, prosumers who are in contents making group(recreational group) show more positive attitudes than simple participants(consuming only). The results of multiple regression analysis indicated that fun & entertainment, arousal, self-expression, user friendly web interface variable commonly posited a significant effect in multimedia UCC Services between two groups. Information sharing and perceived usefulness posited a significant effect in recreational group.

• 한국정보통신학회논문지
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• 제18권5호
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• pp.1135-1142
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• 2014

스마트폰을 비롯한 모바일 디바이스와 다양한 영상제작도구의 발전에 따라 디지털콘텐츠의 생산량이 증가하고 있으며 그 수요는 날로 증가하고 있다. 위치정보가 포함된 GeoContents의 경우 위치기반의 사용자 맞춤 서비스를 제공할 수 있다. 특히 사진 등의 이미지 콘텐츠는 사용자 위치정보와 주변 POI 정보를 활용 다양한 위치기반서비스가 상용화되어 있다. 동영상 콘텐츠의 경우 프레임별로 위치정보가 다름에도 불구하고, 아직까지 대표위치를 기반으로 서비스가 제공되고 있다. 본 논문에서는 프레임별 위치정보가 포함된 동영상 콘텐츠를 GeoVideo라 정의하고, GeoVideo 콘텐츠를 제작하고 활용하기 위해서 GeoVideo 제작 도구 및 뷰어 소프트웨어를 설계 및 구현하였다. 본 논문에서 제안하는 GeoVideo는 사용자 위치정보 기반의 동영상 콘텐츠 검색 서비스 등에 활용될 수 있을 것으로 기대된다.