• Proceedings of the Korea Association of Information Systems Conference
• /
• 2005.05a
• /
• pp.393-408
• /
• 2005

인터넷의 성장은 고객에게 많은 혜택을 주었지만, 방대한 양의 정보는 오히려 장시간의 상품 탐색과 제품 선택을 어렵게 만들었다. 이에 따라, 정보의 양을 줄여 줄 수 있는 서비스를 고객들은 요구를 하기 시작하였고, 이에 따라 다양한 방법들이 고객에게 제시 되어졌다. 제시되어진 방법 중의 하나가 개인화 추천 시스템이다. 추천 시스템은 고객의 취향과 관심에 적합한 상품을 추천 해 주는 서비스로서 상품 검색 노력을 줄여 주고, 고객의 취향에 적합한 제품을 제시 해 줌으로써 고객충성도 제고에도 많은 도움을 주고 있다. 이러한 추천 시스템에서 가장 많이 사용되어지고 있는 기법은 협업 필터링이다. 협업 필터링은 협업에서도유용한 기법으로 인정을 받았다. 하지만 희박성과 확장성이라는 문제점으로 인해 추천의 정확도가 다소 떨어진다는 것이 단점이다. 본 연구에서는 이러한 단점을 극복할 수 있는 방법으로써 Hybrid 협업 필터링 기법을제시하고, 이를 토대로 추천 기법이 혼합되어진 Hybrid 추천 시스템에 대한 개념을 제시하고자 한다.

• Proceedings of the Korea Contents Association Conference
• /
• 2005.11a
• /
• pp.371-375
• /
• 2005

Giving service in the web environment, which is the service, service, connected to the database server and receiving data from query causes a problem. It declines the efficiency of down loading and offering server service. Through obtaining data from database cashing or database clustering have used in the researches these days.

• Composites Research
• /
• v.28 no.4
• /
• pp.162-167
• /
• 2015

Composite sandwich structures are widely employed in various applications, due to their high specific stiffness and specific bending strength compared to solid panels. Lately, for that reason, the advanced composite sandwich structures are employed in satellite structures: materials should be as light as possible with the highest attainable performance. This study is majorly focused on inserts employed to the composite sandwich satellite structures. A new hybrid insert design was developed in precedent study to reduce the mass of the sandwich structure since the mass of the satellite structure is related to high launching cost [1]. In this study, the thermal characteristics and behavior of the precedently developed hybrid insert with carbon composite reinforcing web and the conventional partial insert were numerically investigated.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2014.11a
• /
• pp.306-309
• /
• 2014

네이티브 어플리케이션의 한계를 극복하기 위해 웹 서비스를 이용한 Hybrid Application이 개발되었다. Hybrid Application은 단말기의 센서, 카메라 등 기기의 기능을 Application이 지원하고 내부 구조와 인터페이스, 데이터 전송 등에 Web기술을 이용하여 기존 네이티브 어플리케이션의 단점을 보완하고 장점을 합한 것이다. 웹 기반으로 구현 되었기 때문에 다양한 기기와 해상도에 적용이 가능하고 문제 발생 시 웹과 동일하게 실시간 업데이트가 가능하다. 본 논문에서는 HTML5과 하이브리드 어플리케이션 기반의 SNS 메신저를 설계하고 구현하였다. SNS의 게시판 기능과 메신저를 결합하여 커뮤니케이션을 강조한 어플리케이션을 구현하여, one-source-multi-platform SNS 시스템을 구축하였다.

• 한국방재학회:학술대회논문집
• /
• 2009.02b
• /
• pp.117.1-117.1
• /
• 2009

• Transactions of the Korean Society of Mechanical Engineers A
• /
• v.30 no.7 s.250
• /
• pp.816-825
• /
• 2006

This paper describes the development of a web-based interference verification system in the mold design process. Although several commercial CAD systems furnish interference verification functions, those systems are very expensive and inadequate to perform collaborative works over the Internet. In this paper, an efficient and precision hybrid interference verification algorithm for the web-based interference verification system over the distributed environment has been studied. The proposed system uses lightweight CAD files produced from the optimally transformed CAD data through ACIS kernel and InterOp. Collaborators related to the development of a new product are able to verify the interference verification over the Internet without commercial CAD systems. The system reduces production cost, errors and lead-time to the market. Validity of the developed system is confirmed through case studies.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.8 no.1
• /
• pp.127-137
• /
• 2002

This paper deals with developing a Web-based Solver NRO(Network Reliability Optimizer) for solving three classes of reliability redundancy optimization problems which are generated in series systems. parallel systems and complex systems. Inputs of NRO consisted in four parts. that is, user authentication. system selection. input data and confirmation. After processing of inputs through internet, NRO provides conveniently the optimal solutions for the given problems on the Web-site. To alleviate the risks of being trapped in a local optimum, HH(Hybrid-Heuristic) algorithm is incorporated in NRO for solving the given three classes of problems, and moderately combined GA(Genetic Algorithm) with the modified SA(Simulated Annealing) algorithm.

• The Transactions of the Korea Information Processing Society
• /
• v.6 no.11S
• /
• pp.3299-3308
• /
• 1999

One of the most important prerequisites for a successful software process is the collaboration and software requirements negotiation of all stakeholders in the software development process. Remote users using computer networks can negotiate software requirements by computer supported system, and can share their informations. The goal of software requirements negotiation system is an integration of all win conditions and an agreement after resolution of conflicts. The existing systems need an exclusive system and must be dependent on specific platform and network. Users must have the knowledge of all stakeholder's status and use homogeneous collaborating applications. This paper presents the Web-based software requirements negotiation system for the purpose of resolution of the existing systems' problems. The Web-based software requirements negotiation system can be driven by WinWin Spiral model, and it is based on hybrid execution method. The proposed system is validated and tested on heterogeneous environments.

• Journal of Multimedia Information System
• /
• v.3 no.4
• /
• pp.111-118
• /
• 2016

Today, the proliferation of various mobile devices, such as smart phones and tablet PC, brought changes in the existing TV viewing behavior. People use smart devices as secondary device while watching TV. Researches on a wide range of services linked with second-screen devices around the smart TV in the home network have been actively conducted. While there exist several Web-related technologies for connections between devices, specialized techniques for a second screen service are quite insufficient. There are still some problems related to the display of contents from multiple devices and the efficient transfer of these contents. Considering the characteristics of broadcasting systems In this study, we focus on a second screen service that permits a dynamic transfer of contents by connecting a television (TV) with mobile devices. Here, we propose a second screen service model to enable the personalization of TV contents by combining the existing broadcasting and Web-related techniques.

• Journal of the Korean Society for information Management
• /
• v.18 no.4
• /
• pp.15-35
• /
• 2001

This paper suggests metadata as an effective search tool suitable for moving images on the web. Dublin Core, a leading metagata sceme of web resources, and MPEG-7, a coming international standard developed by MPEG, are used to construct a hybrid metadata scheme. RDF is selected as a framework for a matadata description and Moving Image Core was developed as a RDF schema. Finally, RDF/XML encoded metadata of moving images are retrieved throuth web-based database system using ASP technology.