• 전기전자학회논문지
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• 제17권3호
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• pp.301-308
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• 2013

본 논문에서는 다중센서 기반의 하이브리드 조명제어 시스템을 제안한다. 제안된 하이브리드 조명제어 시스템은 가로등의 관리 및 제어를 위한 데이터 표시부와 데이터 변환 및 처리부, 게이트웨이의 통신부로 구성하여 설계한다. 데이터는 실시간으로 저장이 가능하도록 DB를 설계하고, 실시간으로 무선 원격제어 및 스케줄을 설정하여 모니터링 할 수 있도록 구현한다. 제안된 하이브리드 조명제어 시스템의 효율성 검증결과, 스마트 기기 및 포터블 PC 등과 연동하여 실시간 모니터링 및 원격 조명제어가 가능하였고, 결과적으로 에너지 절감 및 전기료 감소, 통신비용 감소 효과를 얻을 수 있었다.

• 전자공학회논문지CI
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• 제40권2호
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• pp.17-25
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• 2003

본 논문에서는 상태 변수 표현 방법에 따른 알고리즘 분할을 통해 2차원 웨이브렛 변환 연산을 실시간으로 처리할 수 있는 프로세서 구조를 제안하였다. 제안된 프로세서 구조는 영상입력에 대하여 행, 열 방향을 동시에 고려하여 데이터 플로우 방식으로 처리함으로써 중간적인 결과의 메모리 저장 및 읽기에 소요되는 전달 지연 시간을 감소할 수 있어 실시간 처리에 적합한 VLSI 구조이다. 필터의 길이를 K라할 때 프로세서는 내부에 4개의 곱셈기, 4개의 덧셈기 및 NK-N 크기의 메모리를 가지는 등의 하드웨어 복잡도가 낮아 웹 카메라 서버와 같은 내장형의 응용에 매우 적합한 구조이고, 쉽게 어레이 구조로 확장할 수 있어 고성능을 요구하는 다양한 영상 처리 응용에도 사용 가능하다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2005년도 추계 종합학술대회 논문집
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• pp.590-595
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• 2005

RFID(Radio Frequency Identification)는 효율적이고 정확하게, 제품을 인식하는 새로운 수단으로 대두되고 있다. RFID 기술사용은 산업분야의 초과 재고조사, 위조품, 노동 비용을 감소시키고 공급망을 향상시킬 수 있을 것이다. RFID 기술은 제품을 인식하기 위해 RF를 사용한다. 각 제품에는 EPC(Electronic Product Code)라는 작은 태그가 부착되어 있으며, 특정 상품 정보를 포함하고 있다. 각각의 EPC는 유일하며 개개의 제품을 인식할 수 있다. EPC 태그가 특정 위치로 이동하게 되면 리더는 태그를 읽게 되며, 태그 데이터는 데이터 저장 시스템인 EPC 정보서비스에 저장된다. 모든 서비스가 웹 서비스를 통하여 EPC 정보서비스로 접근될 수 있으며, 사용자가 서비스를 요구할 때 마다 사용자에게 원하는 데이터를 제공해 준다. 본 연구에서는 EPC 정보서비스를 이용하여 재고관리 시스템을 구현해 보았다.

• 한국콘텐츠학회논문지
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• 제2권4호
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• pp.17-22
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• 2002

본 논문에서는 ASP와 SQL을 연동한 사이버한방진료와 자료처리를 위한 시스템 통합과 환자와 한의사간의 on-line 상담, 진료데이터의 저장 및 검색으로 인한 반영구적인 진료데이터의 활용(환자 및 한의사의 본 진료데이터를 이용한 보다 정확한 진료 및 처방등이 가능)이 가능하다. 본 논문에서는 사이버한방병원 자료처리 프로세스에서 전문가 상담, 유료회원 접근절차, 처방프로토콜, 전자진료차트을 구현함으로써, 웹상에서의 시공간을 초월한 on-line 및 off-line 겸용모드의 진료형태로 전환하는 한방원격진료 시스템을 설계 및 구현하였다.

• 한국정보과학회논문지:데이타베이스
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• 제35권5호
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• pp.411-420
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• 2008

웹 환경에서 정보 표현과 교환을 위한 표준 방식으로 널리 사용되고 있는 XML 문서의 양은 급속히 증가하고 있으며, 대용량의 XML 문서도 많이 생산된다. 이러한 XML 문서들을 RDBMS에 효율적으로 저장하고 검색하는 연구가 활발히 진행되어 왔는데 이들 연구들 중에서 Shared Inlining 저장 방법이 높은 검색 효율을 보인다. Shared Inlining 방법은 DTD의 정보를 분석하여 XML 문서를 노드의 성분별로 분할하여 관계형 데이타베이스로 저장하는 기법이다. 본 논문은 기존의 Shared Inlining 방법에서 여러 하위 노드를 가지는 엘리먼트에서 발생되는 중첩 문제를 해결하기 위한 기법을 제안한다. 이 방법에서는 DTD 정의에 맞게 XML 문서를 Shared Inlining 구조로 저장하고 검색의 정확성을 높인다.

• Journal of Information Processing Systems
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• 제10권3호
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• pp.365-383
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• 2014

Service-oriented computing offers efficient solutions for executing complex applications in an acceptable amount of time. These solutions provide important computing and storage resources, but they are too difficult for individual users to handle. In fact, Service-oriented architectures are usually sophisticated in terms of design, specifications, and deployment. On the other hand, workflow management systems provide frameworks that help users to manage cooperative and interdependent processes in a convivial manner. In this paper, we propose a workflow-based approach to fully take advantage of new service-oriented architectures that take the users' skills and the internal complexity of their applications into account. To get to this point, we defined a novel framework named JASMIN, which is responsible for managing service-oriented workflows on distributed systems. JASMIN has two main components: unified modeling language (UML) to specify workflow models and business process execution language (BPEL) to generate and compose Web services. In order to cover both workflow and service concepts, we describe in this paper a refinement of UML activity diagrams and present a set of rules for mapping UML activity diagrams into BPEL specifications.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권7호
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• pp.2815-2839
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• 2020

In a cloud computing paradigm, allocation of various virtualized ICT resources is a complex problem due to the presence of heterogeneous application (MapReduce, content delivery and networks web applications) workloads having contentious allocation requirements in terms of ICT resource capacities (resource utilization, execution time, response time, etc.). This task of resource allocation becomes more challenging due to finite available resources and increasing consumer demands. Therefore, many unique models and techniques have been proposed to allocate resources efficiently. However, there is no published research available in this domain that clearly address this research problem and provides research taxonomy for classification of resource allocation techniques including strategic, target resources, optimization, scheduling and power. Hence, the main aim of this paper is to identify open challenges faced by the cloud service provider related to allocation of resource such as servers, storage and networks in cloud computing. More than 70 articles, between year 2007 and 2020, related to resource allocation in cloud computing have been shortlisted through a structured mechanism and are reviewed under clearly defined objectives. Lastly, the evolution of research in resource allocation techniques has also been discussed along with salient future directions in this area.

• 한국생물정보학회:학술대회논문집
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• 한국생물정보시스템생물학회 2006년도 Principles and Practice of Microarray for Biomedical Researchers
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• pp.30-36
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• 2006

Tissue microarray (TMA) is an array-based technology allowing the examination of hundreds of tissue samples on a single slide. To handle, exchange, and disseminate TMA data, we need standard representations of the methods used, of the data generated, and of the clinical and histopathological information related to TMA data analysis. This study aims to create a comprehensive data model with flexibility that supports diverse experimental designs and with expressivity and extensibility that enables an adequate and comprehensive description of new clinical and histopathological data elements. We designed a Tissue Microarray Object Model (TMA-OM). Both the Array Information and the Experimental Procedure models are created by referring to Microarray Gene Expression Object Model, Minimum Information Specification For In Situ Hybridization and Immunohistochemistry Experiments (MISFISHIE), and the TMA Data Exchange Specifications (TMA DES). The Clinical and Histopathological Information model is created by using CAP Cancer Protocols and National Cancer Institute Common Data Elements (NCI CDEs). MGED Ontology, UMLS and the terms extracted from CAP Cancer Protocols and NCI CDEs are used to create a controlled vocabulary for unambiguous annotation. We implemented a web-based application for TMA-OM, supporting data export in XML format conforming to the TMA DES or the DTD derived from TMA-OM. TMA-OM provides a comprehensive data model for storage, analysis and exchange of TMA data and facilitates model-level integration of other biological models.

• 경영과정보연구
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• 제18권
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• pp.133-161
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• 2006

E-business has received much attention from entrepreneurs, executives, investors, and industry observers recently. The Internet is flourishing and the World Wide Web is growing at an exponential rate. In recent years, information has become the critical commodity needed for success in the changing global economic order. Accordingly, business organizations have come to the conclusion that they require an extensive data repository in order to acquire a competitive advantage in a dynamically change market. This rich assortment of data must further be delivered and deliverable enterprise-wide in a secure and cost-efficient manner. Information technology(IT) has created the E-business as a vitally important mechanism for the storage, dissemination, and even the analysis data. The E-business has become increasingly important to a growing number of organizations in Korea in relatively short order. The present study is an attempt to develop a more through understanding of the potential and actual impact of the B-business on organizational functions and activities. Expecially, it also consists of an effort to assess the impact of the E-business on profitability. The research also addresses the issue of how the E-business affects profitability and shapes or modifies business activities. The results of literature review and study revealed that middle managers believe that the extent of the I-business use is significantly related to improvements in overall organizational functions and activities. While communication, decision-making, productivity, work collaboration, and business activities are all enhanced by E-business use, profitability appears to be most dramatically improved by Intranet use.

• 경영과정보연구
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• 제14권
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• pp.1-24
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• 2004

The Internet is flourishing and the World Wide Web is growing at an exponential rate. A fundamental concept of Intranet, the so-called second wave, was introduced only a few years ago. Intranets have been embraced by corporate users of information services and made substantial inroads in strategic vision documents and procurement practices. Business organizations have come to the conclusion that they require an extensive data repository in order to acquire a competitive advantage in a dynamically change market. This rich assortment of data must further be delivered and deliverable enterprise-wide in a secure and cost-efficient manner. Information technology(IT) has created the Intranet as a vitally important mechanism for the storage, dissemination, and even the analysis data. The present study is an attempt to develop a more through understanding of the potential and actual impact of the Intranet on organizational functions and activities. Expecially, it also consists of an effort to assess the impact of the Intranet on work collaboration. The research also addresses the issue of how the Intranet affects work collaboration and shapes or modifies business activities. The results of literature review and study revealed that middle managers believe that the extent of the Intranet use is significantly related to improvements in overall organizational functions and activities. While communication, decision-making, productivity, work collaboration, and business activities are all enhanced by Intranet use, Work Collaboration appears to be most dramatically improved by Intranet use.