• Title/Summary/Keyword: Expert systems

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A Study on the Improvement of the Disaster Prevention and Control System for Underpasses by Analytic Hierarchy Process (계층분석법을 통한 지하차도 재해 예방 및 제어 시스템 개선 연구)

  • Kim, Phil Do;Kim, Kyoung Soo;Moon, Yoo Mi
    • Journal of the Society of Disaster Information
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    • v.16 no.4
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    • pp.734-746
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    • 2020
  • Purpose: Increase in the size and number of underpasses rises occurrence of disasters such as fire and flooding inundation in underpasses. In the occurrence of disasters, the underpasses are more vulnerable to expose of crucial disasters than the general roads due to they are built underground. Therefore, The purpose of this paper is to derive system improvement items to prevent and control disasters in underpasses. Method: A hierarchical model of disaster impact factors and alternatives was developed based on prior researches and expert advices on disaster analyses and impact factors in the underpasses. The developed model was employed for surveys of pairwise comparison, and rankings of improvement were determined by applying the AHP method. Result: With a consistency of the surveys, results of relative weights of evaluation criteria(traffic accidents, fire, flooding inundation) and alternatives(law, system/planning, maintenance/human factor/environment) shows that improvement of laws and system related to the fire disaster is a top priority to prevent and control disaster of the underpasses. Conclusion: From experts' point of view, strengthening laws and systems related to disater prevention facilities such as water spray facilities, external(ground) exit in relation to fire in underpasses showed that it is an alternative to prevent disasters and minimize damage to underpasses.

Patent Analysis on Fuel Cell By-Product Utilization Technology for Operating Expenditure Reduction of Hydrogen Residential Buildings (수소에너지 주거건물의 운영비용 감축을 위한 연료전지 발전 부산물 활용기술에 관한 특허분석)

  • Ji, SangHoon;Kim, WeonJae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.12
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    • pp.488-493
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    • 2020
  • The demand for hydrogen, which is considered an environmentally friendly energy source, is increasing, and at the same time, the fuel cell market is increasing continuously. This study aimed to establish a strategy for securing intellectual property rights on fuel cell by-product utilization technology for operating expenditure reduction of hydrogen-powered residential buildings. In this patent analysis, this study investigated Korean, American, Japanese, and European patents filed/published/registered by October 2019 and established a technical classification system and classification criteria through expert discussion. To reduce the operating expenditure of hydrogen-powered residential buildings, intellectual property rights will be improved using systems and methodologies involving cathode-side purified air, product water, and oxygen-depleted air captured with the dead-end mode operation of polymer electrolyte fuel cells.

Discussion and Analysis Study on the Introduction Plan of the Librarian Qualification System (사서자격인증제도의 도입방안에 관한 논의 및 분석연구)

  • Hong, Hyun-Jin;Noh, Younghee;Ro, Ji-Yoon
    • Journal of the Korean Society for Library and Information Science
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    • v.55 no.3
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    • pp.17-56
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    • 2021
  • The purpose of this study was to focus on the discussion on the introduction of the librarian qualification certification system, which is being discussed as a way to raise the qualification level of experts as a system for expert certification and to raise social awareness as experts. First, the introduction of the library and information science curriculum certification system was discussed. Second, the issues to be considered when introducing the certification system were discussed. In other words, we analyzed in depth what matters we should consider when discussing the certification system. Third, the components of domestic and overseas certification systems were investigated and analyzed, and measures applicable to the librarian qualification certification system were discussed. Fourth, it was proposed to introduce a certification system for the Department of Library and Information Science. Also, based on the results of the analysis, it was suggested what could be a problem when introducing the certification system to the Department of Library and Information Science in Korea and what contents should be reviewed. In this study, in order to propose the introduction of the librarian qualification certification system, the purpose of the librarian qualification certification system, the certification criteria, the certification institution, and the contrast between the university and the Department of Library and Information Science were also dealt with in detail.

Mid & Long-term Library Plan for Exchange and Cooperation between South and North Korean Libraries (남북한 도서관의 중장기 교류협력 방안 연구)

  • Jo, Hyeon-Seong;Jeon, Youngsun;Kim, Soyeon;Kim, Taekyung;Choi, Jae-Hwang
    • Journal of Korean Library and Information Science Society
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    • v.53 no.2
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    • pp.25-42
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    • 2022
  • The purpose of this study is to present directions and programs for exchange and cooperation between libraries of South and North Korea. Specifically, it is to present the direction of exchange and cooperation programs in the library area and to present library exchange and cooperation programs that can be promoted in the [tight period], [reconciliation and cooperation period], and [South and North confederation period] through research methods of literature review, Focus Group Interviews (FGI), and expert advice. In this study, exchange and cooperation programs were divided into three projects that should be prepared by South Korean libraries, by direct exchange and cooperation between South and North Korean libraries, and by conducting with third countries or international organizations. Along with the conducting program periods, 8 major programs and 33 unit tasks were also proposed. Conclusions and suggestions suggested the need for sector-by-sector, step-by-step exchange and cooperation, establishment of systems to promote effective exchange and cooperation, establishing the formation of consensus within libraries, finding field-oriented agendas, and developing education programs of North Korea libraries for librarians.

An Evaluation of the Importance of Major Indicators for Measuring the Level of Spatial Informatization in Local Governments (지방정부의 공간정보화 수준 측정을 위한 주요 지표의 중요도 평가)

  • Kim, Yeon-Seong;Seo, Won-Chan;Yoon, Hong-Joo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.17 no.5
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    • pp.985-994
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    • 2022
  • This study diagnoses the maturity level of local government's spatial information policy in the face of the digital transformation period. To this end, by using the stratification (AHP) analysis technique, for the spatial information expert group, the importance evaluation is performed along with the selection of measurement indicators of the level of spatial informatization. First, the current status and indicators in terms of spatial information policies of local governments are studied through theoretical considerations. In addition, by examining previous studies, differentiation from this study is presented. In this study, 3 indicators and 18 detailed items of spatial informatization level evaluation indicators could be selected. As a result of the evaluation, the overall importance ranking for the measurement index was 0.125 (12.5%) for the establishment and utilizations of GIS Systems provided by local governments, 0.109 (10.9%) for the quality management of basic spatial information, 0.107 (10.7%) for the establishment and utilization of its own spatial information. 0.073 (7.3%) for the collaboration and sharing within the institution, 0.071 (7.1%) for the operation of education and support system on spatial information, 0.065 (6.5%) for the securing a dedicated organization and professional human resources, and interest at the institutional level were derived in the order of 0.053 (5.3%). The results of this study are expected to be usefully utilized as basic data to evaluate the level of spatial information policies promoted by local governments. In addition, if the local government's spatial information policy is pursued centering on the major indicators derived from the study, it is expected that efficient policy operation will be possible.

Prioritizing Themes Using a Delphi Survey on Patient Safety Theme Reports (환자안전 주제별 보고서의 주제 우선순위 설정: 델파이 조사를 통한 분석)

  • Park, Jeong Yun;Shin, Eun-Jung;Kim, Rhieun;Kim, Sukyeong;Park, Choon-Seon;Park, Taezoon;Choi, Yun-Kyoung;Heo, Young-Hee
    • Quality Improvement in Health Care
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    • v.28 no.1
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    • pp.45-54
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    • 2022
  • Purpose: The study aims to identify the theme list and priority criteria of patient safety theme reports in South Korea. Methods: The survey was conducted twice, and the importance of each criterion and theme was measured on a nine-point scale using the Delphi technique by a panel of 19 patient safety experts. The criteria included severity, universality, preventability, and organizational-social impact. Descriptive statistics such as frequency, percentage, mean, standard deviation, median, and interval quartile range were used to analyze the data. Results: The parameters were assigned a weighted average of 35% for severity, 20% for universality, 30% for preventability, and 15% for organizational-social impact, respectively. The final top three rankings were surgery safety, blood transfusion safety, and medication safety. In addition to expert opinion, for the theme that is selected based on the priority ranking, one to five sub-topics can be derived from the theme based on the priority ranking, societal demands, or the yearly priority list of patient safety incidents. Conclusion: It is recommended that the official patient safety center distribute the report in the form of a summary that can be utilized nationwide at medical institutions, government institutions, and other places. Updates, as well as accumulated theme reports, will serve as the baseline data for the proposal of the system and for the policy designed to implement and improve institutions' safety practices as a standard of domestic patient safety practice guidelines.

Analysis of User Requirements for Development of Vessel Traffic Services Cloud System (선박교통관제 클라우드 시스템 개발에 따른 사용자 요구사항 분석)

  • Lee, Li-Na;Kim, Joo-Sung;Lee, Hong-Hoon;Lee, Jin-Suk;Namgung, Ho
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.28 no.2
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    • pp.314-323
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    • 2022
  • Vessel Traffic Services (VTS) operators perform traffic management tasks using VTS systems and sensor equipment designated as VTS facilities to promote the safety and efficiency of vessel traffic. The necessary VTS information for effective operations could be obtained through the additional access of various information channels other than the designated VTS facility. To unify these various information access windows, the development of the VTS cloud system is in progress. In this study, the operational information analysis for VTS was performed through VTS tasks-facility linkage analysis to identify the user required information according to the introduction of the VTS cloud system. The VTS task analysis was performed through research of the international and domestic literature, and expert interviews. The necessary information were identified and linked according to the VTS facilities. As a result of the analysis, 37 categories of necessary information were identified for internal and external information windows, and 8 information windows were selected other than the present VTS equipment. The identified user requirements would be applied to the structure design of the VTS cloud system. In the future, it is necessary to update user requirements through scenario-based user operation analysis and to conduct additional research on the system interface design.

Analysis of the Needs of Field Experts for the Provision of Rehabilitation Sports Activities Services for the Disabled (장애인 재활운동 및 체육활동 서비스 제공을 위한 현장 전문가 요구도 분석)

  • Kang, Dong-Heon;Park, Ji-Young;Eun, Seon-Deok
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.8
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    • pp.213-231
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    • 2021
  • Due to the absence of rehabilitation sports service systems linked to post-discharge medical measures and rehabilitation, disabled people cannot participate in physical activities suitable for individual disability types, characteristics, and physical functions. In December 2017, the Act on the Rights of Health for the Disabled) was implemented to provide an institutional basis for disable people to address their needs for rehabilitation sports. Based on related studies conducted in Korea, this study aims to collect the results of a demand survey conducted on experts who are rehabilitation sports service providers and analyze the demand for rehabilitation sports services from a policy perspective. This study extracts the needs of experts presented in the literature and presents the extracted content as an inductive content analysis. The criteria for selecting the literature were selected based on studies related to "adaptive physical activity and exercise," "sports for all for the disabled," and "rehabilitation sports" conducted in the Republic of Korea, including the results of a demand survey on experts. The study results were categorized into seven categories (perception of sports activities, programs, leaders, facilities, accessibility, cost/support/financial resources, and others) of field experts who are rehabilitation sports service providers. In a future study, it will be necessary for people with disability, who are consumers who will provide actual services, to identify problems at the disabled sports site and come up with measures to improve them.

Cyber attack group classification based on MITRE ATT&CK model (MITRE ATT&CK 모델을 이용한 사이버 공격 그룹 분류)

  • Choi, Chang-hee;Shin, Chan-ho;Shin, Sung-uk
    • Journal of Internet Computing and Services
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    • v.23 no.6
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    • pp.1-13
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    • 2022
  • As the information and communication environment develops, the environment of military facilities is also development remarkably. In proportion to this, cyber threats are also increasing, and in particular, APT attacks, which are difficult to prevent with existing signature-based cyber defense systems, are frequently targeting military and national infrastructure. It is important to identify attack groups for appropriate response, but it is very difficult to identify them due to the nature of cyber attacks conducted in secret using methods such as anti-forensics. In the past, after an attack was detected, a security expert had to perform high-level analysis for a long time based on the large amount of evidence collected to get a clue about the attack group. To solve this problem, in this paper, we proposed an automation technique that can classify an attack group within a short time after detection. In case of APT attacks, compared to general cyber attacks, the number of attacks is small, there is not much known data, and it is designed to bypass signature-based cyber defense techniques. As an attack model, we used MITRE ATT&CK® which modeled many parts of cyber attacks. We design an impact score considering the versatility of the attack techniques and proposed a group similarity score based on this. Experimental results show that the proposed method classified the attack group with a 72.62% probability based on Top-5 accuracy.

What factors drive AI project success? (무엇이 AI 프로젝트를 성공적으로 이끄는가?)

  • KyeSook Kim;Hyunchul Ahn
    • Journal of Intelligence and Information Systems
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    • v.29 no.1
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    • pp.327-351
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    • 2023
  • This paper aims to derive success factors that successfully lead an artificial intelligence (AI) project and prioritize importance. To this end, we first reviewed prior related studies to select success factors and finally derived 17 factors through expert interviews. Then, we developed a hierarchical model based on the TOE framework. With a hierarchical model, a survey was conducted on experts from AI-using companies and experts from supplier companies that support AI advice and technologies, platforms, and applications and analyzed using AHP methods. As a result of the analysis, organizational and technical factors are more important than environmental factors, but organizational factors are a little more critical. Among the organizational factors, strategic/clear business needs, AI implementation/utilization capabilities, and collaboration/communication between departments were the most important. Among the technical factors, sufficient amount and quality of data for AI learning were derived as the most important factors, followed by IT infrastructure/compatibility. Regarding environmental factors, customer preparation and support for the direct use of AI were essential. Looking at the importance of each 17 individual factors, data availability and quality (0.2245) were the most important, followed by strategy/clear business needs (0.1076) and customer readiness/support (0.0763). These results can guide successful implementation and development for companies considering or implementing AI adoption, service providers supporting AI adoption, and government policymakers seeking to foster the AI industry. In addition, they are expected to contribute to researchers who aim to study AI success models.