• The KIPS Transactions:PartA
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• v.16A no.1
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• pp.9-16
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• 2009

Because Grid system consists of heterogenous computing resources, which are distributed on a wide scale, it is impossible to efficiently execute applications with scheduling algorithms of a conventional parallel system that, in contrast, aim at homogeneous and controllable resources. To suggest an algorithm that can fully reflect the characteristics of a grid system, our research is focused on examining the type of information used in current scheduling algorithms and consequently, deriving factors that could develop algorithms further. The results from the analysis of these algorithms not only show that static information of resources such as capacity or the number of processors can facilitate the scheduling algorithms but also verified a decrease in efficiency in case of utilizing real time load information of resources due to the intrinsic characteristics of a grid system relatively long computing time, and the need for the means to evade unfeasible resources or ones with slow processing time. In this paper, we propose a new algorithm, which is revised to reflect static information in the logic of WQR(Workqueue Replication) algorithms and show that it provides better performance than the one used in the existing method through simulation.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.28 no.4D
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• pp.553-560
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• 2008

As it was developed to korea standard of the CAD Drawing in Construction CALS/EC for the productivity Improvement in Construction Industry and efficiency rising of construction management. it is high time to design the standard system in water resources. The purpose of this study is to establish the strategies for standard system of drawing information in water Resources parts for construction CALS/EC. This study is to analyse the existing construction drawing standards including CMS, CMMS, drawing guideline of a water Resources public institution, ISO, US National CAD Standard, Japanese Standard. As a result of the analysis, this study proposes the prime structure of the water Resources drawing information standard to support construction CALS/EC. For the establishment of standard system in real practice, this study establishes the numbering system to joint the current standard system for a water Resources order institution and to keep construction CALS/EC. In conclusion, the standard system of drawing information is proposed as a fundamental frame to water Resources parts of construction CALS/EC.

• Journal of KIISE:Information Networking
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• v.32 no.4
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• pp.471-482
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• 2005

The high-speed network permits Grid computing to handle large problem of management areas and share various computational resources. As there are many resources and changes of them in Grid computing, the resources should be detected effectively and matched correctly with tasks to provide high performance. In this paper, we propose a mechanism that maximizes the performance of Grid computing systems. According to a priority, grade and site of heterogeneous resources, we assign tasks to those resources. Initially, a volunteer's priority and ranking are determined by static information like as CPU speed, RAM size, storage size and network bandwidth. And then, the rank of resources is decided by considering dynamic information such as correctness, response time, and error rate. We find that overall Grid system performance is improved and high correctness using resource reallocation mechanism is achieved.

• Journal of the Korean Association of Geographic Information Studies
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• v.6 no.2
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• pp.33-45
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• 2003

This paper defines the prototype of the geographic-object field that links the geographic-object and the geographic-field using an object-oriented geographic information system, and then implements the flood simulation in the saemangeum water resources management system that manipulates the water quantity of saemangeum lake and the height of gate using the watershed-object field. This paper combines the natural phenomena with the artificial phenomena that occurs on the water resources of the saemangeum, and designs the object oriented class hierarchy that is composed of the total watershed-object field, and then presents the algorithm for flood control. To visualize the class hierarchy of the whole geographic-object field and the partial geographic-object field, I use the UML(Unified Modeling Language). Attributes and methods of each class can acquire the functional reusability and compatibility using the COM of the ZEUS and the Visual Basic 6.0 of Win32 APIs. By means of implementing the flood simulation in the Saemangeum water resources management system, finally, this paper contributes on the efficient management of water resources.

• Journal of the Korean Society for information Management
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• v.39 no.2
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• pp.325-346
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• 2022

Social changes characterized by new normal also demand changes in libraries and libraries are making preemptive efforts. This study compared and analyzed the difference in librarian perceptions between the start of COVID-19 in 2020 and after experiencing the pandemic in 2022 in terms of the relative importance of library policies considered by pairwise comparative analysis. In the 1st survey, the importance of factors related to 'Library Management' and 'Library Services' was high and in the 2nd survey, the importance of factors related to 'Human Resources' and 'Information Resources' increased. This study insists that the public libraries invest in human resources and information resources and establish a user-customized policy in order to quickly adapt to the new paradigm and to provide sustainable library services.

• Proceedings of the KSRS Conference
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• 2002.10a
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• pp.323-329
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• 2002

The thermal effluent discharged from nuclear power plants can affect the offshore ecosystem change. The ability of measuring sea surface temperature in high resolution with Airborne MSS thermal spectral band(8.5 $\mu$m ~ 12.5 $\mu$m) and Landsat ETM+(10.4$\mu$m ~ 12.5 $\mu$m) gives us an information of spread range of thermal effluent. This information can be used as one of major factors fur analyzing the impact of the fish farm damage around the nuclear power plants. Every season from November 1999, this research has been conducted to investigate the extent of diffusion of thermal effluent discharged from KoRi, UlJin and WolSung Nuclear Power Plant located at the coastline of the East Sea of Korea.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06c
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• pp.336-340
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• 2007

We envisage that grid computing environments allow us to implement distributed data mining services, that is, those applications which analyze large sets of geographically distributed databases and information using the computational power and resources of a grid environment. This paper describes an experimental framework towards such a distributed data mining approach, including design considerations and a prototype implementation. Based on the "Knowledge Grid" architecture suggested by Cannataro et al., we identify four major components - user node, broker node, data node, and computation node - and define their individual roles. For implementing the prototype, we have investigated methods for utilizing distributed resources within a grid computing environment, e.g., communication and coordination among the various resources available.

• Journal of the Korean Society for information Management
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• v.22 no.2 s.56
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• pp.5-21
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• 2005

As the use of electronic information sources becomes increasingly common, the need for understanding their use becomes critical. This paper describes what usage statistics of electronic materials entail, how they can be used for a variety of library decision making, and the process in which the data can be best acquired, processed, analyzed and presented. It also offers a general introduction to on-going standardization efforts related to usage statistics of electronic resources and services. Some of the research opportunities that these newly developed data sources present to library and information science field are identified.

• Journal of the Korean Society for Library and Information Science
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• v.39 no.1
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• pp.17-44
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• 2005

There is a strong correlation between library resources and research productivity, as measured by publications and researcher honors. Therefore, first-class information resources of the academic and research libraries are essential to a productive research infrastructure in Korea. The principal aim of this paper is to develop a structure and framework of KORLIN (Korean Research Library Network) for providing seamless access to the analogue and digital information resources of university and research libraries from workstations of researchers.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.418-420
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• 2005

본 연구에서는 각종 전문가 선정의 전문성, 공정성, 투명성 및 신뢰성 제공과 최적으로 전문가 그룹에 적합한 전문가를 구성하기 위한 전문가 선정 방법론을 제안한다. 이를 위해, 전문가를 3차원적으로 탐색 및 정량적인 값으로 평가할 수 있는 전문가 후보군 선정 알고리즘을 제시하였으며, 선정된 전문가 후보군들을 조합 최적화 문제에 많이 응용되고 있는 유전자 알고리즘을 이용하여 전문가 선정 방법을 보였다.