• Journal of Korean Library and Information Science Society
• /
• v.33 no.3
• /
• pp.393-413
• /
• 2002

This study is to suggest a classification system to classify the agricultural information resources on the internet. In the first part, I analyzes KDC's class 520(agriculture science). The second part compares the agricultural classes of Yahoo! Korea with those of Empas search engine. The third part compares the classes of AFFIS with Agri_Directory. Based on the comparative analysis, it proposes a classificatory system for the agricultural information resources on the internet.

• Proceedings of the Korea Society for Industrial Systems Conference
• /
• 2003.05a
• /
• pp.3-7
• /
• 2003

For high performance Grid environments, an efficient GIS(Grid Information Service is required In the Metacomputing Directory Service(MDS) of the Glogus middleware, the Lightweight Directory Access Protocol(LDAP), which is a distributed directory service protocol, is used. The LDAP GIS differs from general purpose LDAP directories in that most of the LDAP operations are write in Grid environments. To get an efficient design of the GIS, it is thus required to analyze the performance of the LDAP system in the context of Grid environments. This paper presents the result of a performance analysis of LDAP systems. The main objective of the evaluation is to see the performance scalability of the LDAP system in the Grid environment where the write operations prevails. Based on these results, we suggest directions of an efficient LDAP-based GIS for a high performance Grid.

• Annual Conference on Human and Language Technology
• /
• 1992.10a
• /
• pp.51-61
• /
• 1992

전자전화번호부 서비스는 HiTEL단말기 및 기존의 PC를 소유한 가입자의 전화번호 관련문의에 대해 신속, 정확한 정보를 제공하는 비디오텍스 응용시스팀으로서 통신처리시스팀, 서비스검색시스팀, 화일관리시스팀으로 나뉠 수 있다. 전화번호화일은 가입자에 따라 인명부, 업종상호부로 나뉘어 CISAM 방식의 화일로 구현하였으며, 상호인 경우 1:N 필드관계를 지원하여 하나의 전화번호에 대해 다수 업종의 지원이 가능하다. 전화가입자의 일일 변동자료의 처리및 화일의 갱신에 대해 소개하고자 한다.

• Annual Conference on Human and Language Technology
• /
• 1992.10a
• /
• pp.63-72
• /
• 1992

전자전화번호부 서비스(EDS)는 기존 전화번호정보 안내의 목적인 114전화번호안내 서비스, 전화번호부 발간, 가입자 직접검색서비스등의 각기 고유의 정보제공 방법에서 각 개체가 가진 전화번호관련 정보를 부가가치를 지닌 정보로 재구축하여 공익서비스의 측면에서 사용자가 HITEL단말기를 이용하여 White page정보 및 yellow page 정보를 문자및 화상형태로 제공받을 수 있는 비데오텍스 응용서비스로써, 본고에서는 EDS 검색시스팀 개발에 관련된 연구결과를 정리하였다.

• Journal of Communications and Networks
• /
• v.3 no.4
• /
• pp.317-323
• /
• 2001

Traditional configuration management involves complex labor-intensive processes performed by experts. The configuration tasks such as installing or reconfiguring a system, provisioning network services and allocating resources typically involve a large number of activities involving multiple network elements. The network elements may be associated with proprietary configuration management instrumentation and may also be spread across heterogeneous network domains thereby increasing the complexity of configuration management. This paper introduces an architecture for the self-configuration of networks (SELFCON). The proposed architecture involves a directory server, which is uses to maintain configuration information. The configuration information stared in the directory server is modeled using the standard DEN specification thereby allowing effective exchange of network, system and configuration management data among heterogeneous management domains. SELFCON associates configuration intelligence with the components of the network, rather than limit it to a centralized management station. The network elements are notified about related changes in configuration policies, based upon which, they perform self-configuration. SELFCON is able to provide automation of configuration management and also an effective unifying framework for enterprise management.

• Journal of Information Technology and Architecture
• /
• v.11 no.4
• /
• pp.427-439
• /
• 2014

Introduction of new information systems due to continuous progress of ICT has made the enterprise IT environment into a mixed pot of various IT resources. Rapidly changing business situation has emphasized the integration of organizational IT resources as one of key competitive advantages. Those distributed IT resources are now demanding to solve the problems not only on their own effective management but also on security and control issues against unauthorized infiltration and information leakages. Under the situation that the number of IT resources is constantly increasing, it is needed to study a management model and its implementation that integrally solves above all problems. In this paper, it is revealed that a directory service can be used to integrally manage distributed IT resources and a directory service based system model for distributed IT resource management is suggested. By implementing an HR solution over active directory service, it is demonstrated that our integrated management model for distributed resources is applicable to real business cases. It is expected that for small and medium sized enterprises with limited IT investments, directory service based IT resource management system can be a cost-effective solution for increasing security threats and lack of governance.

• Journal of the Korean Society for information Management
• /
• v.25 no.3
• /
• pp.357-375
• /
• 2008

With the rapid distribution and active usage of the Internet, information search and retrieval through Internet has become a primary form of information access. This ubiquity of information access through Internet means the increased significance of search performance offered by Internet portals, since the optimization of search performance by portal has strong implication for the effective access of information through Internet in general. In this context, this paper investigates the classification scheme used in the directory service of internet portals, which provides selected and organized access to Internet information. First, the author analyzes the deployment of directory classification of standard subdivision topics used in traditional library classification system, with emphasis on the table composed of the form and approach, which are applicable to diverse subject areas. Then, based on this analysis, he proposed a method of applying certain subdivisions of the standard subdivision to directory service of Internet portals.

• TTA Journal
• /
• s.95
• /
• pp.64-69
• /
• 2004

• International Journal of Contents
• /
• v.6 no.1
• /
• pp.59-64
• /
• 2010

Recently, biological researches are required to deal with a large scale of data. While scientists used classical experimental approaches for researches in the past, it is possible to get more sophisticated observations easily with the convergence of information technologies and biology. The study on diseases is one of the most important issues of the life science. Conventional services and databases provide users with information such as classification of diseases, symptoms, and medical treatments through the Web. However, it is hard to connect or develop them for other new services because they have independent and different criteria. It may be a factor that interferes the development of biology. In this paper, we propose integrated data structures for the disease databases. We also design and implement a novel directory system for diseases as an infrastructure for developing the new diseases services.

• The Transactions of the Korea Information Processing Society
• /
• v.7 no.1
• /
• pp.50-56
• /
• 2000

In this paper, for improving the speed of query processing on distributed directory system, we proposed a caching mechanism which is store the queries and their on the remote site objects in the cache of local site. For this, first, cached information which is stored in distributed directory systems is classified as application data and system data. And cache system architecture is designed according to classified information. Second least-TTL replacement mechanism which uses the weighted value of geographical information and access frequency for replacements are developed for each cache. Finally, performance evaluations are performed by comparing the proposed caching mechanism and other mechanisms (LRU, LFU replacement). Our least-TTL mechanism shows a performance improvement of 25% over the LRU and that of 30% over LFU.