• Journal of Korea Society of Industrial Information Systems
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• v.27 no.1
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• pp.37-48
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• 2022

In this study, a hybrid meta-heuristic approach is proposed for solving engineering design optimization problems. Various approaches in many literatures have been proposed to solve engineering optimization problems with various types of decision variables and complex constraints. Unfortunately, however, their efficiencies for locating optimal solution do not be highly improved. Therefore, we propose a hybrid meta-heuristic approach for improving their weaknesses. the proposed GA-VNS-HC approach is combining genetic algorithm (GA) for global search with variable neighborhood search (VNS) and hill climbing (HC) for local search. In case study, various types of engineering design optimization problems are used for proving the efficiency of the proposed GA-VNS-HC approach

• Proceedings of the Korean Association for Survey Research Conference
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• 2001.04a
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• pp.73-86
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• 2001

In this paper, we conducted an empirical study to investigate the design and weighting effects on descriptive and analytic statistics. We compared the regression models using the design-based approach and the generalized estimating equations(GEEs) approach with the model-based approach through the design and weighting effects analysis.

• Proceedings of the Korean Association for Survey Research Conference
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• 2001.06a
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• pp.45-56
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• 2001

In this paper, we conducted an empirical study to investigate the design and weighting effects on descriptive and analytic statistics. We compared the regression models using the design-based approach and the generalized estimating equations(GEEs) approach with the model-based approach through the design and weighting effects analysis.

• Journal of Korean Library and Information Science Society
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• v.43 no.3
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• pp.27-48
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• 2012

This study analyzed guidelines and instructions for access points representing works and expressions in RDA. The preferred title for the work is used as the basis for constructing an authorized access point to represent a work or expression. If applicable, the authorized access point is constructed by combining the preferred title for the work to the authorized access point for the identity with principal responsibility for the work. The variant titles for the work are used as the basis for constructing variant access points to represent a work or expression. If the authorized access point is constructed by combining the preferred title for the work to the authorized access point for the identity responsible for the work, the variant access points are constructed by combining the variant titles for the work to the authorized access point, and by using only the preferred title for the work. Besides, RDA provides instructions to construct the controlled access points for special works like musical works, laws, religious works and others, but the general principles for these works are same as the above instructions. The authorized access points for works and expressions in RDA are almost same as the main entry headings in AACR2.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.27 no.1
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• pp.313-336
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• 2016

The study reviews theoretical and empirical research literature in information needs, seeking and uses in order to search for the most pertinent metatheories for studying information practices of the disadvantaged. The study examines the salient features and main theories/models of each cognitive, affective and social approach in the user-centered paradigm through analyzing prior information practices studies. While analyzing the main features of each cognitive, affective and social approach, the study points out the limitation of research using the cognitive and affective approaches to fail to theorize the relationship between individuals and complex and dynamic socio-cultural contexts in information practices. As an alternative, the study suggests using the social approach as a pertinent metatheory for understanding information practices of the disadvantaged who are entangled with myriad social contexts and issues. In order to verify the pertinence, the study examines the advantages of the social approach through analyzing both the main models related to everyday information practices under social constructionism and the main findings from information practices of the disadvantaged.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2019.05a
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• pp.564-565
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• 2019

The Internet of Things technology is regarded as the next major technology that will be the driving force behind the fourth industrial revolution. The characteristics of entities for Internet of Things application are changing more actively and actively, requiring a more detailed approach, but existing access control technologies are designed around users, requiring access control techniques that maintain efficiency and security with less system load to apply complex and variable content. Therefore, research on role-based access controls that are appropriate for Internet of Things entities is essential. In this study, the relevant research for the study of access control of the Internet of Things entities and the RBAC and AC methods that can define the properties of the various entities within the Internet of Things.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.365-370
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• 2014

Importance of Web accessability for handicapped persons is ever increasing in the information society with increasing role of the Web. The Web accessibility of handicapped person related Web sites were compared with the school Web sites in order to figure out the realities of handicapped person related Web site's accessibilities. According to the experiment, the Web accessibility of handicapped person related Web sites got lower scores than general school Web sites. The research result shows that more improvement efforts for the Web accessibility of handicapped person related Web sites are required.

• Journal of the Korean Society for information Management
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• v.23 no.1 s.59
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• pp.181-200
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• 2006

The purpose of this study is to analyze the accessibility of web resources contained in the references section of journal articles.1 was identified a total of 1,377 web citations for a major journal in information science over a ten year period. The results show that the accessible ratio of domestic web resources was at 40% and the ratio of foreign web resources about 50%. The accessible ratio of domain type web resources was shown 58% while the same ratio for file type web resources was 45%. This low accessibility of we resources in references poses threat to the overall value of journal articles.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.11a
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• pp.269-270
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• 2009

이러닝 학습은 다양한 목적을 지닌 많은 대상들에게 눈부실만한 기여를 하고 있음에도 불구하고 이러닝의 특성을 가장 절실히 필요로 하는 장애인과 노인 등의 소외된 사람들에게 혜택을 주지 못하고 있다는 점은 안타까운 일이다. 이러한 현실에 대하여, 그동안 정보통신기술분야에서도 소외된 대상들을 고려한 접근성 관련 제도적 개선이 이루어져 왔다는 점을 상기한다면, 자성만이 아니라 그 이유를 조사할 필요가 있다. 따라서 본 연구의 목적은 이러닝 기업 CEO의 인식을 조사하여 웹 접근성과 관련한 제도적인 여건 속에서도 학습 환경에서는 여전히 접근성 개선이 이루어지지 않는 이유를 찾아보고 개선 방안을 제시하는 데 있다. 위의 목적을 위하여 현업에 종사하는 운영자와 개발자들을 대상으로 보편적 교수 설계을 위한 이러닝의 접근성 관련 인식을 조사하였다, 그 결과 이러닝 접근성에 대한 CEO의 인식은 매우 저조하며, 중요성에 대해서는 공감하나 비용적인 부담으로 인해 보편적 이러닝 콘텐츠 개발은 불가능하다고 생각하고 있었다. 이러닝 기업 CEO의 낮은 인식은 곧 개발자와 교수설계자들에게 접근성 기술 적용의 필요성을 강조하지 않는 결과를 초래하고 있다. 이에 대한 개선을 위해서는 우선 정부와 관련기관의 적극적인 홍보와 제도적 장치가 필수적이며, 현재 제공되는 이러닝의 접근성 개선을 위한 연구와 지원방안이 필요하며, 구체적으로는 보편적 학습설계와 접근성에 대한 교육과 확산을 위한 대안이 필요하다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.18 no.2
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• pp.125-140
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• 2007

Cultural contents should provide all the people web services to ensure accessibility without any obstacles as a core resource of nation including a code linking people and people beyond time and space. This study achieved that automated measure including 11 checkpoints and manual analysis including 11 criteria and 26 checkpoints of three areas in selected five web sites such as Culture Portal. Art Road, Korean Patterns, MFM, and e-Museum supported by Ministry of Culture & Tourism. As a result, web accessibility level of cultural contents analyzed it staying at the beginning level. This study Provided the directions in order to improve accessibility of cultural contents through showing real cases to practice for improving web accessibility.