• 한국자기학회:학술대회 개요집
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• 한국자기학회 2008년도 Asian Magnetics Conference
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• pp.72.1-72.1
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• 2008

• 한국정보시스템학회:학술대회논문집
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• 한국정보시스템학회 2001년도 춘계학술대회 발표논문집
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• pp.281-298
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• 2001

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2007년도 춘계학술대회
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• pp.163-167
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• 2007

We propose an XML document storage system, called XDMS (XML Document Management System), by using an object-relational DBMS. XDMS generates object database schema from XML Schema and stores the XML documents in an object-relational database. SAX parser is used for understanding the structure of the XML documents, and XDMS transforms the documents into objects in the database. Experiment shows that object-relational databases provide more efficient storage and query model compared with relational databases.

• Asia pacific journal of information systems
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• 제27권2호
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• pp.126-138
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• 2017

The proliferation of items increased the difficulty of customers in finding the specific items they want to purchase. To solve this problem, companies adopted recommender systems, such as collaborative filtering systems, to provide personalization services. However, companies use only meaningful and essential data given the explosive growth of data. Some customers are concerned that their private information may be exposed because CF systems necessarily deal with personal information. Based on these concerns, we analyze the effects of the amount of information on recommendation performance. We assume that a customer could choose to provide overall information or partial information. Experimental results indicate that customers who provided overall information generally demonstrated high performance, but differences exist according to the characteristics of products. Our study can provide companies with insights concerning the efficient utilization of data.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1994년도 Proceedings of the Korea Automatic Control Conference, 9th (KACC) ; Taejeon, Korea; 17-20 Oct. 1994
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• pp.24-27
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• 1994

This paper develops a representation theory of linear systems by means of doubly coprime factorizations, and applies the theory to the simultaneous stabilization problem for a given set of linear systems.

• 경영정보학연구
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• 제8권1호
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• pp.223-239
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• 2006

디지털 경제 시대에 있어 정보시스템은 기업의 경쟁 우위 확보 차원을 넘어 생존의 차원에서 필요성을 인정 받고 있다. 기업은 신규 개발 또는 ERP 도입을 통해 정보시스템을 개발하고 이를 기반으로 사업을 추진하고 확장해야 하는 것이다. 그러나, 이러한 정보시스템의 성공적 운영에는 많은 현실적 문제가 있음을 인식해야 할 것이다. 특히, 중소기업의 경우 정보 시스템 운영 단계에서 많은 문제가 노출되어 운영에 차질이 생기거나 운영 자체를 포기하는 사례가 발생하고 있다. 본 논문은 중소기업의 성공적인 정보화 지속을 위해 효과적인 정보시스템 유지보수와 진화 관리를 위한 프레임웍을 제시하고자 한다. 사례 연구를 통해 설계된 프레임웍은 서비스 프레임웍, 감사 프레임웍, 위험관리 프레임웍 등으로 구성되어 있으며 중소기업의 정보화를 지속적으로 구현할 수 있는 정보시스템의 효과적인 운영 체제 구축에 활용될 수 있을 것으로 기대된다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1992년도 하계학술대회 논문집 A
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• pp.248-251
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• 1992

In this paper, the RedMAP, i.e. a redundant Mini-MAP system for high reliability is proposed. Redundancy is implemented for LLC, MAC, and Physical layer of ISL-Mini -MAP. The detection of error of the network, the broadcasting of the error event, and the network change sequence are three major functions for the dualized Mini-MAP system. The abnormal operation of the network is mainly detected indirectly with the function of the TBC( token bus controller). The time delay to be required for the change of the networks must be minimized. With the RedMAP, we can achieve successful transmission only with short additional recovery time.

• International Journal of Computer Science & Network Security
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• 제23권12호
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• pp.115-122
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• 2023

Makkah Al-Mukarramah is the capital of Islamic world. It receives special attention from the Saudi government's rulers to transform it into a smart city for the benefit of millions of pilgrims. One of the 2030 vision objectives is to transform specific cities to smart ones with advanced technological facilitation, Makkah is one of these cities. The history of Makkah is not well known for some Muslims. As a result, we built the concepts of our application "Ain Makkah" to enable visitors of Makkah to know the history of Makkah by using technology. In particular "Ain Makkah" uses Augmented Reality to view the history of Al-Kaaba. A 3D model will overlay Al-Kaaba to show it in the last years. Our project will use Augmented Reality to build a 3D model to overlay Al-Kaaba. Future work will expand the number of historical landmarks of Makkah.

• 대한안전경영과학회지
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• 제19권1호
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• pp.169-179
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• 2017

The size of the market for SCM information systems have globally and steadily increased. And there are businesses that obtained innovative business performance by introducing SCM information systems. However, many businesses have still undergone trial and error in the process to introduce and operate SCM. As external factors including suppliers, customers, etc. and internal factors of businesses have been analyzed to be failure factors of executing SCM information systems, the businesses that try to introduce SCM information systems need to understand possible failure factors and establish the solutions. Therefore, this study tries to verify the diffusion of SCM information systems and effects on bullwhip effects. The study is expected to suggest empirical data that people will refer to the establishment of next counterstrategies according to the lapse of the period that systems are introduced based on theoretical bases related to the diffusion of SCM information systems.

• 한국자기학회:학술대회 개요집
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• 한국자기학회 2007년도 The 1st International Symposium on Advanced Magnetic Materials
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• pp.178.2-178.2
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• 2007