• Annual Conference of KIPS
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• 2008.05a
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• pp.987-990
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• 2008

센서 데이터들을 실제 IT 환경 하에서 데이터 처리하기 위해서 네트워크 인프라 환경으로 USN(Ubiquitous Sensor Network) 환경이 많이 연구되어지고 있다. 이들 환경은 온도, 소리, 진동, 습도등 생활 주변의 정보를 수집하여 이에 발생된 데이터들을 특정 시스템에서 처리하여 주변상황 상태등을 인식 및 관리를 하는데 목적을 둔다. 기존 USN 기술은 주로 네트워킹 관점의 연구가 활발히 수행되어지고 있다. USN은 미래 유비쿼터스 사회를 위한 기반 인프라로 국가적으로 기술 개발을 추진 중에 있으며 다양한 시범 서비스를 추진 중에 있다. 최근에는 환경, 에너지 등의 미래 신 성장 산업 분야에서 환경문제를 해결할 수 있는 기술 개발을 전략적으로 추진 중에 있다. 본 논문에서는 다양한 건축자재 및 생활 용품에서 배출되고 실내공간, 사무실, 주거지 등 일반 환경에서 보편적으로 존재하는 인체유해물질인 포름알데히드(HCHO) 오염농도를 수집 할 수 있는 센서네트워크 환경을 구축하고 수집된 HCHO 센서 데이터들을 이용하여 주변 사람들에게 위험정보를 제시하는 한 시스템으로 ET-IT 융합 시스템인 실시간 모니터링 시스템을 제시한다.

• Journal of Information Management
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• v.26 no.4
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• pp.64-99
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• 1995

As advanced information technology has been developing rapidly, libraries are moving from an ownership-centered information service toward information access service. Consequently, integrated automation systems of information centers that give not only cataloging information of their own collections but also various electronic information have appeared. In this study, a model of integrated automation system of an information center is suggested in terms of information types and cost, by taking case studies of some domestic and foreign libraries. Furthermore, the MIPOS Information & Resource Center System of POSCO Group is introduced as a good example of integrated automation systems in Korea.

• Journal of KIISE:Information Networking
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• v.37 no.2
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• pp.99-108
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• 2010

The Wireless Ad Hoc network is discussed as a core technology for ubiquitous computing, and the smart tag technology is currently being actively discussed as a part of the sensor network. Thus, considering its security may advance the realization of ubiquitous computing. RFID (Radio Frequency Identification) technology using the smart tag technology as a part of the sensor network is currently in the limelight. In particular, when RFID is applied to a knowledge management system managing various data, data mobility and management convenience are ensured and automated knowledge service can be provided to users. Accordingly, this paper to proposed a secure scheme for mobility knowledge management systems using multi-agents differentiated from the existing knowledge management systems. Specifically, the proposed scheme designates user's authentication and privilege information in multi-agents and provides effective knowledge service through grouping based on user information. Moreover, even user's movement, the proposed scheme ensures service availability and provides continuous information through communication with multi-agent systems.

• Journal of the Korean Society for Library and Information Science
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• v.38 no.1
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• pp.263-279
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• 2004

This study intends to design a metadata service system of the science information for youth on the web based on the efficiency of the metadata system. Metadata scheme of the science information for youth on the web has been developed and designed metadata collection on the basis of the previously designed classification system. Metadata scheme of the science information for youth, which is consisted of six essential elements and four additional elements, has been brought out, compared to not only Dublin Core Metadata Element Set, but also the main studies related to domestic and foreign metadata projects. Based on the results of it, metadata database of the science information has been designed and it is expected to be applicable to metadata service system of the science information for youth on the web.

• Journal of KIISE:Computing Practices and Letters
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• v.11 no.1
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• pp.36-49
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• 2005

Recently, many researchers have given high attention to the semantic web services based on the semantic web technology While existing web services use the XML-based web service description language, WSDL, semantic web services are utilizing web service description languages such as DAML-S in ontology languages. The researchers of semantic web services are generally focused on web service discovery, web service invocation, web service selection and composition, and web service execution monitoring. Especially, the semantic web service discovery as the basis to accomplish the ultimate semantic web service environment has some different properties from previous information discovery areas. Hence, it is necessary to develop the storage system and discovery mechanism appropriate to the semantic well description languages. Even though some related systems have been developed, they are not appropriate for the embedded system environment, such as intelligent robotics, in which there are some limitations on memory disk space, and computing power In this regard, we in the embedded system environment have developed the document management system which efficiently manages the web service documents described by DAML-S for the purpose of the semantic web service discovery, In addition, we address the distinguishing characteristics of the system developed in this paper, compared with the related researches.

• Journal of Scientific & Technological Knowledge Infrastructure
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• s.12
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• pp.94-97
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• 2003

현재까지 KISTI가 그 존재가치를 부여받고, 성장할 수 있었던 이유는 KRISTAL-ll에서부터 KRISTAL-2000에 이르는 검색엔진을 보유하여 정보전달 및 유통체계를 선도해낼 수 있었기 때문이다. 선진국의 검색시스템과 경쟁력이 잇는 강력한 시스템을 보유하면 자동적으로 KISTI의 역할과 위상이 부각될 것이다. 이와 동시에 소스공개 정책을 통해 국내외 프로그래머들이 소프트웨어를 발전시키고 개량시켜서 누구나 공유할 수 있는 정책을 펴나가면 KISTI는 그야 말로 정보유통의 중심축에서 더욱더 그 힘을 발휘하지 않을까 생각한다. 일본 속담에 호주머니에 송곳을 가지고 있으면 내가 송곳을 가지고 있다고 말하지 않아도 남들은 호주머니에 무엇이 있는지 알 수 있다고 했듯이 KISTI가 강력한 검색시스템을 가지고 있으면 자연히 모든 정보는 KISTI로 흘러 들어오지 않을까 생각된다.

• Journal of KIISE:Information Networking
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• v.29 no.6
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• pp.685-695
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• 2002

Recently, there has been increasingly demand for connecting a embedded device to the Internet. Jini technology is interested in automatically composing a distributed network with devices But, there are some problems that the device needs high hardware requirements to adopt Jini technology for supporting Jini-enabled services. In this paper, we focused on design and implementation of surrogate system that supports non-Java devices in Jini networks. This system and protocol are implemented in Java language. The surrogate system delegates Discovery and Join processing to support a Jini service in connected networks. A Jini client can use service of the device through the surrogate system. We tested a Jini sample program to verify the implemented surrogate system. In the test result, we showed that the Jini client can use functionalities and operations of the non-Java device through the surrogate system.

• KIISE Transactions on Computing Practices
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• v.20 no.12
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• pp.664-669
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• 2014

As the prevalence of cloud computing increases, various cloud service types have emerged, such as IaaS, PaaS, and SaaS. The growth and diversification of these cloud services has also resulted in the development of technology for cloud service brokers (CSBs), which serve as intermediate cloud services that can assist cloud tenants (users) in deploying services that fit their requirements. In order to broker cloud services, CSBs require the specification of structural models in order to facilitate the analysis and search for cloud services. In this study, we propose a variability-based service analysis model (SAM) that can be used to describe various cloud services. This model is based on the concept of variability in the software product line and represents the commonality and variability of cloud services by binding variants to each variation point that exists in the specification, quality, and pricing of the services. We also propose a virtual cloud bank architecture as a CSB that serves as an intermediate to provides tenants with appropriate cloud services based on the SAM.

• The Journal of the Korea Contents Association
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• v.21 no.11
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• pp.64-76
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• 2021

Culture technology (CT) becomes important in the recent environment where digital technology drives content-based innovations. However, technological trends of CT have not been systematically discussed. Especially, the trends of CT should be analyzed from the national perspective, because CT has grown with the help of government-driven innovation. Therefore, this paper aims to analyze CT trends focusing on national research projects. We collected data on CT from the national science and technology information service (NTIS) database, analyzed the keyword co-occurrence network, and identified the patterns of technological innovation using a clustering analysis. As a result, we found that CT has contributed to the digital content and cultural media, and has been actively developed with the help of machine learning technique. Especially, due to the rise of Covid-19, the non-face-to-face online content is rapidly increasing. This study provides important clues for understanding, analyzing CT trends.

• Electronics and Telecommunications Trends
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• v.9 no.1
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• pp.87-96
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• 1994

경제성과 효율성을 지닌 종합정보 통신망인 ISDN은 음성 또는 비음성의 정보를 모두 디지털 형식으로 통일시켜 각종 서비스가 하나의 회선과 이용자 번호로 제공되는 디지털 전송. 교환방식의 네트워크로 우리나라에서는 1994년 1월 서비스가 상용화 되었다. 전기통신의 국제 표준화 작업은 ITU 회원국의 주관청과 표준화 업무에 희망을 피력하고 회원국의 승인을 받은 공인된 민간 운영회사 및 과학 산업기구의 연구원으로 구성된 ITU-TS에 의해 주관된다. ITU-TS는 사용자-망 인터페이스 본 네트워크 및 단말기와 사용자 측의 필요 조건을 정리하여 1984년과 1988년에 I시리즈 권고를 통해 ISDN의 개관과 서비스, 망 구성 및 운용, 사용자-망 인터페이스, 망간의 인터페이스 등 ISDN에 관한 개념이나 원칙을 국제 표준으로 발표하였다. ITU-TS의 ISDN 일반 원칙에 따르면 네트워크 자체는 각국의 상황에 따라 자유롭게 구성할 수 있다. 본 연구에서는 통신 선진국인 미국의 표준화 과정을 조사.연구함으로써 국내 통신망의 보호와 국내 실정에 맞는 통신망 구축을 위해 보다 나은 ISDN 기술 기준의 제정 방향을 제시하는데 그 목적이 있다. 우리 나라에서도 기술기준에 대한 연구 시기를 앞당기고 현장 시험에서 얻어지는 자료나 연구결과의 교환이 원활히 이루어져야 하며, 상용화 후에도 예측못했던 문제점 및 사후 관리에 대한 연구가 지속적으로 행해져야 겠다. 그리고 기술기준을 제정하는 위원회에는 통신 사업자는 물론 정부 및 이용자까지도 함께 참여하여 모든 사람의 이익을 고려한 기준이 제정될 수 있어야겠다.