• Journal of the Korea Society of Computer and Information
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• v.11 no.2 s.40
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• pp.145-151
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• 2006

In conjunction with the rapid progress of IT(information technology) an increasing amount of data are being generated. The amount of new data is so big and the type of new data generated from clients or sensor devices needed to be in ubiquitous environment is so various that it is hard to manage and control them. Especially data to be occurred in ubiquitous environment are generated through PDA(personal digital assistant) smart phone, mobile device or sensor units etc. Therefore, to manage and control them generated from ubiquitous devices for decision making, we can use data warehouse as an integrated storage. A data warehouse integrates and aggregates data of several different DBMS into one DBMS. Also the updated data from source data have to be effectively propagated to the data warehouse. Therefore, in this paper, we proposed a mode) for an exact and efficient data management methodology in new IT paradigm environment, ubiquitous computing environment, to apply updated data on the warehouse to make decision. We also show brief result compared to conventional methodology.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.5
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• pp.1173-1179
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• 2015

In this paper is given to implements the Android-based integration platform to provide convenience for gender development and scalability , easy access for the user. Sensor-based smart home-related products have a different way of the data exchange so platform can be integrated easily and connect heterogeneous network products and external data transmission security processing for data communication and supported to enable the integration

• The Journal of Korean Association of Computer Education
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• v.6 no.2
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• pp.53-60
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• 2003

The M&S community needs an environmental data representation and interchange mechanism which not only satisfies the requirements of today's systems, but can be extended to meet future data sharing needs. This mechanism must allow for the standard representation of, and access to data. It must support databases containing integrated terrain, ocean, atmosphere, and space data. The SEDRIS provides environment data users and producers with a clearly defined interchange specification. In this paper I present the method to extract the data attributes contained in synthetic environment domain using SEDRIS technology and API.

• Proceedings of the KAIS Fall Conference
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• 2011.12b
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• pp.679-682
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• 2011

본 논문에서는 완전제어형 식물공장에서 작물이 생육하는데 필요한 재배환경들의 모니터링 및 제어가 가능한 센서 네트워크 기반의 식물공장 통합 제어 시스템을 설계 및 구축한다. 제안한 시스템은 완전제어형 식물공장에서 각 재배단의 환경 정보를 수집하기 위해 통합 환경정보 센서 및 전력 제어 센서를 설치하고, 통합 컨트롤러를 통해 LED 조명의 제어가 가능하도록 설계 하였다. 환경정보 센서는 온도, 습도, CO2의 데이터가 실시간으로 수집되며 전력제어 센서는 실시간 사용되는 전력량 데이터가 수집 가능하며 센서를 통해 전력의 차단 및 공급이 가능하도록 설계 하였다. 본 시스템은 크게 모니터링과 제어로 구분되며 테스트 베드의 구축을 통해 실시간 환경정보 센서 데이터 수집이 가능하고, LED 조명 및 전력을 제어가 가능함을 확인하였다.

• Digital Contents
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• no.6 s.61
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• pp.60-66
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• 1998

OLAP은 데이터 마이닝, 데이터 비주얼라이제이션, 데이터웨어 하우징 등의 최신 의사결정지원 기술과 마찬가지로 전반적인 비즈니스 인텔리전스 프레임웍의 핵심 컴포넌트중 하나이다. 하지만 시스템 환경이 복잡해지고, 사용자들의 요구가 다양해짐에 따라 하나의 제품군이 모든 사용자 업무를 지원한다는 것은 무리이다. 이를 위해 각 제품들은 상호 통합 및 연계를 그 해결책으로 제시하고 있다.

• Information and Communications Magazine
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• v.21 no.11
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• pp.92-103
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• 2004

광대역 통합망은 유무선 통합, 통신과 방송 응합, 음성 및 데이터의 통합을 위해 필요한 네트워크를 서비스 계층, 제어 계층, 전달망 계층, 접속 계층, 유비쿼터스 접속 및 가입자 단말 계층으로 구분한다. BcN은 사용자가 원하는 품질과 보안의 정도에 따라 차별화된 광대역 멀티미디어 서비스 제공 및 관리가 가능한 네트워크이다. 본고는 현재 진행 중인 BcN 시범 사업에 대하여 기술한다. 우선, 통합 서비스를 제공하기 위한 기본 인프라인 광대역 통합망(BcN, Broadband convergence Network)의 개념, 서비스 특징 및 발전방향 등을 간략히 나타낸다. 그리고 정부의 IT839 전략의 중점 추진과제로 진행 중인 1단계 BcN 시범 사업의 내용과 시범 사업자로 선정된 3개 컨소시엄의 서비스 내용 등을 제시한다. 현재 BcN 시범 사업자로 UbiNet 컨소시엄, Octave 컨소시엄 및 광개토 컨소시엄이 선정된 상태이다. 각 컨소시엄에서는 BcN 환경에 적합한 다양한 서비스 모델 발굴 및 기술개발을 위해 BcN 시범 서비스를 진행할 예정이며, 제공 예정인 BcN 시범 서비스에는 음성 데이터 통합 서비스, 유무선 통합 서비스, 통방 융합 서비스 및 기타 응용 서비스 등이 있다.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.06a
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• pp.338-341
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• 2001

인터넷 환경에서 이 기종 데이터베이스의 통합은 중요한 연구 과제 중의 하나로서, 그를 위한 자료저장소 Wrapper에 대한 관심이 높아지고 있다. 한편, XML은 이 기종 시스템들간에 효과적으로 데이터를 교환하는 도구로서 최근 맡은 DBMS들이 XML을 지원하고 있다. 그러나 그들은 각기 자신의 데이터 모델만을 지원하기 때문에 상호 호환성이 떨어진다. 본 논문은 인터넷 환경에서 분산된 이질의 데이터베이스들을 효과적으로 통합할 수 있도록 일관된 변환 모들을 사용하여 데이터 모델에 독립적으로 동작할 수 있는 XML 기반의 범용 Wrapper를 제안한다.

• Journal of Korean Library and Information Science Society
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• v.54 no.3
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• pp.105-128
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• 2023

In 2020, the Busan metropolitan library took the lead in establishing an integrated library system (ILS) that integrates bibliographic data from 49 public libraries and 103 small public libraries. However, each library still builds bibliographic data individually and repeatedly, and the bibliographic data built by each library is only physically stored in an integrated DB. Therefore the improvement in work efficiency or data quality has not been achieved. This study aimed to analyze the construction processes and quality of bibliographic data in Busan public libraries and to suggest a new implementation strategy for an integrated environment. To this end, (1) the construction process of bibliographic data was investigated, (2) the quality of the constructed bibliographic data was objectively analyzed, and (3) four implementation strategies were suggested based on critical problems. The implementation strategy aims not only to improve the quality of bibliographic data, but also to increase work efficiency and build an infrastructure for data sharing.

• Journal of the Korean Association of Geographic Information Studies
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• v.23 no.4
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• pp.173-183
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• 2020

In the midst of the aging of underground facilities in urban areas and anxiety about road excavation safety accidents, the Ministry of Land, Infrastructure and Transport began to build Underground Geospatial Infomation Map from 2015 as part of the 「ground subsidence prevention measures」 and efficient use of underground spaces. So, the scope is spreading every year. The current Underground Geospatial Infomation Map information is web-based and is operated in a desktop environment, so it is true that there are some limitations in its use in a field environment such as an excavation construction site. The Underground Geospatial Infomation Map, built and operated in a web-based environment, is a large-scale 3D data. Therefore, in order to service by transmitting data to the field without delay, it is necessary to lighten the Underground Geospatial Infomation Map data. In addition, the current Underground Geospatial Infomation Map is not unified in data formats such as 3DS and COLLADA, and the coordinate system method is also different in relative coordinates and absolute coordinates. In this study, by analyzing domestic and overseas prior research and technical use cases, a mobile Underground Geospatial Infomation Map data format and a lightweight method were presented, and a technology development was conducted to create a mobile underground space integration map in the presented format. In addition, the weight reduction rate was tested by applying 3D data compression technology so that data can be transmitted quickly in the field, and technology was developed that can be used by decompressing 3D data compressed in the field. finally, it aims to supplement the technology experimentally developed in this study and conduct additional research to produce it as software that can be used in the excavation site and use it.

• Journal of the Korea Society of Computer and Information
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• v.26 no.12
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• pp.69-75
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• 2021

Recently, deep learning, which is the most used in the field of artificial intelligence, has a structure that is gradually becoming larger and more complex. As the deep learning model grows, a large amount of data is required to learn it, but there are cases in which it is difficult to integrate and learn the data because the data is distributed among several owners and security issues. In that situation we conducted parallel learning for each users that own data and then studied how to integrate it. For this, distributed learning was performed for each owner assuming the security situation as V-environment and H-environment, and the results of distributed learning were integrated using Average, Max, and AbsMax. As a result of applying this to the mnist-fashion data, it was confirmed that there was no significant difference from the results obtained by integrating the data in the V-environment in terms of accuracy. In the H-environment, although there was a difference, meaningful results were obtained.