• 인터넷정보학회논문지
• /
• 제19권2호
• /
• pp.33-41
• /
• 2018

In recent years, technology is rapidly changing to support new service consumption and distribution models in multimedia service systems and hybrid delivery of media services is a key factor for enabling next generation multimedia services. This phenomenon can lead to rapidly increasing network traffic and ultimately has a direct and aggravating effect on the user's quality of service (QOS). To address the issue, we propose a novel system architecture to provide smart hybrid media services efficiently. The architecture is designed to apply the software-defined networking (SDN) method, detect changes in traffic, and combine the data, including user data, service features, and computation node status, to provide a service schedule that is suitable for the current state. To this end, the proposed architecture is based on 2-level scheduling, where Level-1 scheduling is responsible for the best network path and a computation node for processing the user request, whereas Level-2 scheduling deals with individual service requests that arrived at the computation node. This paper describes the overall concept of the architecture, as well as the functions of each component. In addition, this paper describes potential scenarios that demonstrate how this architecture could provide services more efficiently than current media-service architectures.

• 대한원격탐사학회:학술대회논문집
• /
• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
• /
• pp.897-899
• /
• 2003

Recently, owing to the rapid progress of Telecommunication technology, the increase of wireless internet’s subscriber and diffusion of wireless device, LBS (Location Based Services) which take advantage of user's location information and receive information in concerning with user’s location to be essential services. Location Based Services are related the moving objects which change their locations through time. Therefore, to provide location-based services efficiently, it is required that an efficient system which could acquire, store, and query the large number of locations. In this paper, we design management system to insert and search a huge number of Moving Object based on Legacy Relational Database.

• 디지털산업정보학회논문지
• /
• 제9권2호
• /
• pp.41-54
• /
• 2013

In this paper, We collected location based services of the user's past moving paths through the GPS. Using the collected by location-based services through the analysis of the similarity between the user's of service level agreement recommended of mobile contact area(SLA) proposed that can be. S-RCA method based on Service Level Agreement of the users in order to provide the service user's path distance, time, and to predict the direction of the movement paths and collect. The data collected by the interests and requirements of users through classification with the same interests and the needs of users to move between the analysis of the similarity between the path is used to analyze the results of analysis of the path-specific tolerance range (distance, time, and space) is determined according to the difference in the contact area. From a small area of the error range for users first to recommended and through their smartphones recommended contact area (S-RCA) to meet with the other party to make a choice of recommended methods. We verify through experiments that proposed method(S-RCA) a valid and reliable mobile contact area were recommended.

• 한국정보처리학회논문지
• /
• 제6권11S호
• /
• pp.3229-3242
• /
• 1999

At recent, the Internet is evolving into the directions which is capable of incorporating stream-type services such as voice and video services due to the remarkable growth of WWW service and the development of new multimedia application services. However, the existing Internet can only support a best-effort delivery model and thus it is difficult to satisfy these requirements as well as to provide the QoS beyond a certain degree. Accordingly, it is imperative to develop QoS-based routing algorithm in order to allow flexible routing by the Internet user's QoS demand and to be applied into wide area networks. In this paper, we presented new routing algorithms for next generation Internet services and made performance evaluations. The proposed algorithms allow the routing by the user's QoS demand level in order to provide the diverse Internet application services based on ATM network environment that is expected to play a role as an infrastructure of next Generation Internet Services.

• 디지털산업정보학회논문지
• /
• 제5권2호
• /
• pp.13-20
• /
• 2009

The most of navigation services these days, are designed in order to just provide a shortest path from current position to destination for a user. Several navigation services provides not only the path but some fragmentary information about its point, but, the data tends to be highly restricted because it's quality and quantity totally depends on service provider's providing policy. In this paper, we describe the folksonomy POI(Point of interest) recommender system using mashup in order to provide the information that is more useful to the user. The POI recommender system mashes-up the user's folksonomy data that stacked by user with using external folksonomy service(like Flickr) with others' in order to provide more useful information for the user. POI recommender system recommends others' tag data that is evaluated with the user folksonomy similarity. Using folksonomy mahup makes the services can provide more information that is applied the users' karma. By this, we show how to deal with the data's restrictions of quality and quantity.

• 인터넷정보학회논문지
• /
• 제18권6호
• /
• pp.127-136
• /
• 2017

The strategy that using data collection from Netflix uses for its services is different from traditional human interaction and the communication, and it is represented by the systematic algorithm that rooted from intelligent information system based on the human interaction and communication. These characteristics allowed the study to reflect the influence of 'Asset specificity' which affects the continuous consumption of the media services of Netflix users through economic psychological analysis based on transactional cost economics. The result from the survey on actual Netflix users, three types of specificity (Space specificity, time specificity, relational specificity) reduced perceived searching cost whereas perceived instrumentality has increased, eventually reinforces the commitment to the service. This implies that the service characteristics of Netflix, trying to communicate with the individuals based on intelligent information system are distinct from the existing platform services and it gives the significance of work very effective for user's continuous consumption of the media services.

• 한국비블리아학회지
• /
• 제17권2호
• /
• pp.239-259
• /
• 2006

본 연구의 목적은 중앙 행정기관 자료실이 이용자에게 보다 효율적인 웹기반 정보서비스를 제공하기 위한 방안을 제시하기 위한 것이다. 그러기 위하여 국내 중앙행정부처 18개 기관 자료실을 대상으로 '전용 홈페이지 구축 기관'과 '전용 홈페이지 미구축 기관'으로 나누어 이용자의 요구사항이 어떻게 다른지를 분석하였다. 그 결과 '전용 홈페이지 구축 기관'은 홈페이지 홍보, 홈페이지 이용률 향상을 위한 교육프로그램 제공 다양한 홈페이지 서비스를 위한 시스템 유틸리티 개선이 필요한 것으로 나타났으며. '미구축 기관'은 강력한 검색기능, 다양한 컨텐츠, 질 높은 정보서비스를 받을 수 있는 홈페이지 구축이 필요하다는 이용자의 요구가 있었다.

• International Journal of Knowledge Content Development & Technology
• /
• 제14권3호
• /
• pp.93-113
• /
• 2024

This study was conducted for the purpose of deriving the existing ScienceON elements and reorganizing them to increase user convenience and utilization. Towards this end, implications were derived by analyzing the current status of the ScienceON's website, case studies and analysis of major similar institution websites, and user satisfaction surveys. Based on the derived contents, key terms were analyzed and redefined, the menu system was reorganized, and the menu names were redefined, and the menu system was reorganized to match the direction and identity of the redefined ScienceON. The study results based on such are as follows. First, the ScienceON's brand selection criteria and direction were based on service sustainability, service inclusiveness, recognition of portal characteristics, user friendliness and intuitiveness. Considering the meaning of branding, branding strategy, and selection criteria for ScienceON branding, ScienceON, Ontong ScienceON, ScienceONPlatform, science information portal, ScienceON, Mecca of science and technology information, and 5 brand names such as ScienceON were proposed. Second, to improve accessibility, usability, and satisfaction, it would be necessary to redefine current terms. Towards this end, it would be necessary to change the terminology of knowledge infrastructure search and to unify and organize the terminology. Third, in the current menu, the services provided as analysis services and curation services are organized in the beta service menu, and data such as papers, patents, reports, and trends are also serviced only through integrated search, and hence, each data type and service type classification must be improved.

• 지능정보연구
• /
• 제18권3호
• /
• pp.35-51
• /
• 2012

클라우드 컴퓨팅은 컴퓨팅 자원에 대해 확장 가능한 요구중심의 서비스를 인터넷상에서 제공하는 인터넷 기반의 컴퓨팅이라 할 수 있다. 이러한 환경에서 서비스 사용자가 만족하는 서비스를 선정하여 제공하는 문제는 인터넷과 모바일 기술의 발전에 따라 향후에 다양하고 수많은 클라우드 서비스가 제공되는 경우 매우 중요한 이슈중의 하나가 된다. 과거 연구의 대부분은 요구사항과 연관된 개념의 유사성을 기반으로 하거나 사용자 요구사항의 다양성이 결여되어 있어 사용자의 만족도 향상에 한계를 보이고 있다. 본 논문에서 제안하는 방안은 서비스 만족도 향상을 위해 속성의 개념 유사성 대신에 서비스 속성의 기능적 포함 관계와 규격 등을 기반으로 구성되는 서비스 속성 그래프(Service Attribute Graph : SAG)를 도입하여 사용한다. 뿐만 아니라, 다양한 사용자 선호도를 반영하고 문자, 숫자, 부울린 등 여러 가지 속성 값 유형들을 고려함으로서 서비스 속성의 다양성을 지원한다. 본 논문의 가장 큰 의미는 다른 연구들과 달리 여러 가지 사용자 선호도를 통합적으로 고려하면서 그래프 기반의 선정 방안을 처음으로 제시하고 있다는 점이다.

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