• Journal of Computational Design and Engineering
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• 제3권4호
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• pp.363-369
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• 2016

Cyber Physical System (CPS) and Internet of Things (IoT) are hot objects of interest as an extension of the embedded system. These interactive products and systems contain Mobile Devices which are most popular and used most frequently. Also these have been widely used from the control of the Nuclear Power Control System (NPCS) to IoT Home Service. Information & Communication Technology (ICT) topics of trend fused-complex current Information Technology (IT) and Communication Technology (CT) are closely linked to real space and virtual space. This immediately means the arrival of the ultra-connected society. It refers to a society in which various objects surrounding the human innovation and change in the social sector are expected through the connection between the data which are to be generated. In addition, studies of Tool-kit for the design of such systems are also actively pursued. However, only increased cooperation and information sharing between the physical object consists of a variety of machinery and equipment. We have taken into consideration a number of design variables of the high barriers to entry about the product. In this study, It has been developed a Web-based collaboration framework which can be a flexible connection between macroscopically virtual environment and the physical environment. This framework is able to verifiy and manage physical environments. Also it can resolve the bottlenecks encountered during the base expansion and development process of IoT (Internet of Things) environment.

• 한국CDE학회논문집
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• 제5권1호
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• pp.88-94
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• 2000

This paper presents new type remote home automation that can control and manage hi-directionally and efficiently home appliances and home security systems in home through Internet. The system is used virtual reality technology to construct very easy user interface and used Internet as network for remote control. Here, the user interface is 3D GUI which gives user feeling to be at his home on web-browser, and also shows him present state of control objects at home. This system has been implemented on the basis of Java and VRML. In this paper we propose the internet-based remote control system, and show usefulness of the suggested system by applying to home automation system.

• 한국CDE학회논문집
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• 제11권5호
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• pp.384-392
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• 2006

In this research, the feasibility of distributed finite element analysis system with STEP and CORBA has been investigated. The enabling technologies such as CORBA and Java play key roles in the development of integrated and geographically distributed application software. In addition to the distribution of analysis modules, numerical solution process itself is again divided into parallel processes using multi-frontal method for computational efficiency. In contrast to the specially designed parallel process for specific hardware, CORBA-based parallel process is well suited for heterogeneous platforms over the network. The idea of Web-based distributed analysis system may be applied to the engineering ASP for design and analysis in the product development processes. We believe that the proposed approach for the analysis can be extended to the entire product development process for sharing and utilizing common product data in the distributed engineering environment, thus eventually provide basis for virtual enterprise.

• 한국데이타베이스학회:학술대회논문집
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• 한국데이타베이스학회 2010년도 춘계국제학술대회
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• pp.277-287
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• 2010

We are sometimes interacting with people who we know nothing and facing with the difficult task of making decisions involving risk in social network. To reduce risk, the topic of building Web of trust is receiving considerable attention in social network. The easiest approach to build Web of trust will be to ask users to represent level of trust explicitly toward another users. However, there exists sparsity issue in Web of trust which is represented explicitly by users as well as it is difficult to urge users to express their level of trustworthiness. We propose a fuzzy-based inference model for Web of trust using user behavior information in social network. According to the experiment result which is applied in Epinions.com, the proposed model show improved connectivity in resulting Web of trust as well as reduced prediction error of trustworthiness compared to existing computational model.

• 한국전산구조공학회논문집
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• 제21권6호
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• pp.579-587
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• 2008

협업 환경에서 각 에이전트는 같은 의미의 정보를 서로 다른 용어로 사용하기 때문에 정보공유의 어려움이 있다. 즉 협력 제품개발 환경에서 동일한 제품정보를 각 에이전트가 서로 다른 용어로 표현함으로써 제품정보 공유를 어렵게 만든다. 이러한 어려움을 해결하기 위해서는 의미기반 정보를 활용한 제품정보 공유 방법이 필요하다. 본 연구에서는 의미기반 제품정보 공유를 위해 온톨로지 기반의 의미검색 시스템 및 기존의 PDM시스템과 연계하는 방법을 제안한다. 온톨로지는 OWL기반으로 구축하고, 구축된 온톨로지로부터 Pellet 추론 엔진을 이용하여 의미검색을 가능하게 하며, 이것을 웹서비스를 기반으로 구현하여 다른 시스템에서 활용이 가능토록 한다. 또한 기존의 PDM과 연계하여 PDM을 기반으로 의미검색을 수행할 수 있는 방법을 제안한다.

• 정보처리학회논문지D
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• 제12D권6호
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• pp.899-904
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• 2005

웹서비스의 경쟁이 심화됨에 따라 고객 개개인의 특성을 반영한 맞춤형 서비스의 지원 필요성이 증가되었으며, 이러한 개인화 서비스를 지원하는 고객화 시스템에 대한 연구가 활발히 이루어지고 있다. 대부분 고객화 지원 시스템은 각종 수집 가능한 고객의 개별적인 특성을 위주로 하는 정량적으로 표현되는 자료의 분석을 통해 이루어지고 있다. 하지만 감성 정보의 경우 정서적인 데이터 특성으로 인해 이를 웹 시스템에 활용하기에는 어려움이 있다. 따라서 웹 환경이라는 기술적인 상황에서도 활용 가능한 감성정보의 활용에 관한 연구가 필요하다. 본 연구는 고객의 감성지수를 이용한 적응적 고객화 서비스를 지원하는 웹 시스템을 설계하고 실험을 통해 분석하였다.

• 한국CDE학회논문집
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• 제9권4호
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• pp.315-324
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• 2004

The purpose of this study is to suggest the way of automatic building code checking for architectural drawings in the web environment to enhance the utility of CALS/EC standard drawings and efficiency of construction industry business. To fulfil this aim, the authors seek to standardize the architectural drawing automatic checking system by linked drawing information to the STEP based CALS/EC standard format. Therefore, the automatic building code checking system can represent a way of utilizing the relationship between the construction CALS/EC standard drawings and the related study as well as improve the efficient of the construction work by sharing a variety of drawing information.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 춘계학술대회 논문집
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• pp.619-620
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• 2006

In this paper, the CAE Service System for Collaborative Engineering Environment with web services and Multi-frontal Method has been investigated and developed. The enabling technologies such as SOAP and .NET Framework play great roles in the development of integrated distributed application software. In addition to the distribution of analysis modules, numerical solution process itself is again divided into parallel processes using Multi-frontal Method for computational efficiency. We believe that the proposed approach for the analysis can be extended to the entire product development process for sharing and utilizing common product data in the distributed engineering environment.

• 정보처리학회논문지C
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• 제8C권5호
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• pp.657-666
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• 2001

본 논문에서는 글로벌 캐리어들이 고객 중심으로 음성 트래픽을 효율적으로 처리 및 관리할 수 있도록 CDR을 이용하여 음성 트래픽 관리 항목들을 제안하였으며, 관리 항목을 산출하기 위한 계산 수식들을 정의하였다. 이러한 관리 항목들을 웹 인터페이스 모듈, 분석 모듈, 데이터 수집 모듈, 데이터베이스 관리 모듈로 분리하여 시스템을 설계하였으며 웹 기술을 이용하여 시스템을 구현함으로써 가용성 및 사용의 편의성을 높였다. 또한, 규정된 관리 항목의 유효성을 검증하기 위하여 실제로 글로벌 캐리어에 의해 수집된 CDR을 바탕으로 관리 항목들을 실험하였다. 제안된 웹 기반 음성 트래픽 관리 시스템은 글로벌 캐리어들에게 네트워크 정보 수집, 장애 판단 및 원인 해결, 고객의 성향 분석을 통한 보다 질 높은 서비스 제공 등 도움을 줄 것으로 기대된다.

• Genomics & Informatics
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• 제3권1호
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• pp.39-42
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• 2005

DNA microarray is a high-throughput biomedical technology that monitors gene expression for thousands of genes in parallel. The abundance and complexity of the gene expression data have given rise to a requirement for their systematic management and analysis to support many laboratories performing microarray research. On these demands, we developed Xperanto for integrated data management and analysis using user-friendly web-based interface. Xperanto provides an integrated environment for management and analysis by linking the computational tools and rich sources of biological annotation. With the growing needs of data sharing, it is designed to be compliant to MGED (Microarray Gene Expression Data) standards for microarray data annotation and exchange. Xperanto enables a fast and efficient management of vast amounts of data, and serves as a communication channel among multiple researchers within an emerging interdisciplinary field.