• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.1-3
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• 2005

최근 소프트웨어 재사용과 소프트웨어의 응용범위가 넓어짐에 따라 잘 정의된 아키텍처를 기반으로 개발된 컴포넌트 소프트웨어 개발(CBD . Component-Based Development)방식의 채택이 빠르게 확산되고 있다. 이러한 컴포넌트 소프트웨어 개발 방식이 빠르게 확산되면서 아키텍처를 정확하게 기술, 분석, 정제할 수 있는 능력 또한 점차 중요시 되고 있다. 아키텍처를 정확하게 기술, 분석 정제하기 위해서는 아키텍처 기술 언어(ADL)의 사용이 필요하다. 또한 ADL로 기술된 모델 정보들을 서로 다른 ADL지원도구들이 공유할 수 있도록 ADL 모델 관리기의 개발이 필요하다. 본 논문에서는 ADL 모델 관리기의 구성요소를 기술하여. ADL 모델 정보를 XML형태로 변환하는 변환기의 변환 과정을 설명하고, XML 형태로 변환된 ADL 모델 정보들을 저장하는 저장소 구조를 각각 기술하고, 검색기의 검색 과정 및 검색 결과를 보여준다.

• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.1
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• pp.45-52
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• 2020

This paper proposes a solution for storage and retrieval problems for Resource Description Framework (RDF) data utilizing a key-value Solid State Device (SSD), considering storage, retrieval performance, and security. We propose a two-step compression algorithm to separate logical relationship and true values from RDF data-sets using the key-value SSD. This improves not only compression and storage efficiency but also storage security. We also propose a hybrid retrieval structure based on R∗-tree to enhance retrieval efficiency and implement a sort-merge join algorithm, and discuss factors affecting R∗-tree retrieval efficiency. Finally, we show the proposed approach is superior to current compression, storage, and retrieval approaches, obtaining target results faster while requiring less space, and competitive in terms of versatility, flexibility and security.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.644-651
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• 2004

본 논문은 웹상에 존재하는 이미지를 멀티 스레드에 의한 분산 아키텍처를 이용하여 수집 및 검색 시스템으로, 웹문서에 나타나는 텍스트중 이미지의 이름이나 확장자 그리고 링크에 붙어 있는 텍스트를 추출하여 이미지 자료를 JDBC를 이용하여 데이터베이스화하였다. 이 데이터베이스에 저장된 이미지 자료는 웹 브라우저에서 질의자의 스케치에 의한 검색과 그리고 예제 영상 질의로 검색하는 방법을 제시하여 질의 효율성을 개선하였다. 또한, 멀티 스레드를 이용한 분산 아키텍처를 이용하여, 데이터베이스화 하는 시간에 효율을 개선하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.30-33
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• 2007

본 논문에서는 모바일폰을 통한 시맨틱 검색 및 개인 기호정보를 사용한 검색 결과의 필터링이 가능한 시스템을 제안 하고자 한다. 시스템에서는 모바일 컨텐츠와 웹 컨텐츠의 검색 연동, 사용자 기호정보의 유 무선 장치의 공유 및 유 무선 장치간 검색 결과의 공유를 지원한다. 모바일폰의 컴퓨팅 능력을 고려해 모바일폰에는 사용자 인터페이스만을 유지 하도록 한다. 모바일폰을 통한 시맨틱 검색을 지원하기 위해 시스템은 실험적으로 뉴스 도메인에 국한된 카테고리에 대한 분류 체계 온톨로지를 구축하며, 각 카테고리간 관계를 설정 한다. 또한, 개인 기호정보를 통한 검색 결과의 필터링을 위해 사용자 기호정보를 XML 형태의 벡터 모델로 유지하며, 이는 서버의 데이터베이스에 각 사용자 계정으로 저장하고 공유한다. 모바일폰의 여러 단점을 극복하고 장점을 극대화 하기 위해 검색 결과를 서버에 저장하고 이를 유 무선 장치간 상호 공유 할 수 있도록 한다. 본 논문에서는 시스템의 아키텍처와 구성 및 주요 기능에 대해서 기술하고자 한다.

• The KIPS Transactions:PartD
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• v.12D no.6 s.102
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• pp.857-862
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• 2005

MND(Ministry of National Defense) has developed MND AF(Ministry of National Defense Architecture Framework) and CADM(Core Architecture Data Model to guarantee interoperability among defense information systems. But, it is very difficult to manage architecture product documented through MND AF and CADM. So, there Is necessity for development of modeling tool and repository system which can develop architecture products and manage architecture product informations in common repository In this paper, we developed architecture product management system which supports development and management of meta model and architecture product of MND AF and CADM. Through architecture product management system architect of each agency can construct architecture product in a more effective and efficient way with modeling method and a user can search and refer useful architecture product informations using query function. Also, architecture product management system provides the basis for system integration and interoperability with integration, analysis and comparison of architecture product.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.5B
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• pp.816-823
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• 2010

Recently research efforts for ubiquitous technology that includes RFID(Radio Frequency Deification and sensor networks are conducted very actively The architectural framework of the USN sensor network discovery service. The survey of the USN technology is conducted on four technological visions that contain USN system technology USN networking technology and USN middleware along with the service platform, With respect to each technological division domestic and worldwide leading research projects are primarily explored with their technical features and research projects are primarily explored with their technical features and research outputs. Boasted on the result of the survey we establish a USN software model that includes data sensing, sensor data storage sensor data storage sensor data naming and sensor feed name service. This main objective of this model is to provide a reference model for the facilitation of USN application developments.

• Journal of Information Management
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• v.36 no.1
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• pp.103-124
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• 2005

This paper investigates knowledge management architecture which is related to the efficient storage, search, and retrieval of knowledge. It is important considerations that should be taken account in any knowledge management system. This study reviews literature and practices of the theory of current status of knowledge management architecture (KMA). Based on the review of the current practice, the characteristics and emphasis of the KMA applications are identified. It tries to suggest how the KMA should facilitate for effective and desirable directions of the KMA.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.8 no.1
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• pp.82-95
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• 2007

The paper focuses on how to classify as well as to define the Architecture Patterns which are popularly used in the design of software architecture. In order to achieve this purpose, we propose not only the revised methodology for Pattern-Oriented Software Architecture Design, but also new method of classification and definition for the Architecture Patterns. Especially, because the patterns are so diverse depending on the level of abstraction and types of applications, it was considered to have some different views of classification of the patterns in order to support convenient access to classified and stored patterns. The abstraction of the pattern is another important result of the research, which is devised for concrete expression of the patterns and for presentation of the interrelation among group of the patterns. The research also includes the extension of the quality model popularly adopted in the software domain, which enables the description of the patterns with the well defined quality attributes in terms of software architecture's point of view.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.7
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• pp.669-679
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• 2008

With the increasing demands of information sharing and searches via the web, the web search engine has drawn much attention. Although many researches have been done to solve technical challenges to build the web search engine, the issue regarding its query processing system is rarely dealt with. Since the software architecture and operational schemes of the query processing system are hard to elaborate, we here present related techniques implemented on a commercial system. The implemented system is a very large-scale system that can process 5-million user queries per day by using index files built on about 65-million web pages. We implement a multi-level cache scheme to save already returned query results for performance considerations, and the multi-level cache is managed in 4-level cache storage areas. Using the multi-level cache, we can improve the system throughput by a factor of 4, thereby reducing around 70% of the server cost.

• Journal of Digital Contents Society
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• v.17 no.6
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• pp.479-487
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• 2016

In a Web 2.0 context, users are exposed to numerous smart devices and services that allow real-time interaction between users (or consumers) and developers (or producers). For the provisioning of new user-created services based on user's context, the data management of service creation experiences becomes a non-trivial task. This article introduces a data model for service creation and then proposes a service creation management architecture which enables new service creation using the data model, the management of the service creation data, and the semantic service discovery across internal/external service repositories. The article also explains the use of the proposed architecture with two different scenarios: home and mobile environments. The proposed architecture for service creation data management offers consistent and seamless handling of the service creation data throughout its usage lifecycle.