• Title/Summary/Keyword: Knowledge based systems

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A GraphML-based Visualization Framework for Workflow-Performers' Closeness Centrality Measurements

  • Kim, Min-Joon;Ahn, Hyun;Park, Minjae
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.9 no.8
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    • pp.3216-3230
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    • 2015
  • A hot-issued research topic in the workflow intelligence arena is the emerging topic of "workflow-supported organizational social networks." These specialized social networks have been proposed to primarily represent the process-driven work-sharing and work-collaborating relationships among the workflow-performers fulfilling a series of workflow-related operations in a workflow-supported organization. We can discover those organizational social networks, and visualize its analysis results as organizational knowledge. In this paper, we are particularly interested in how to visualize the degrees of closeness centralities among workflow-performers by proposing a graphical representation schema based on the Graph Markup Language, which is named to ccWSSN-GraphML. Additionally, we expatiate on the functional expansion of the closeness centralization formulas so as for the visualization framework to handle a group of workflow procedures (or a workflow package) with organizational workflow-performers.

Agent-Based Decision Support System for Intelligent Machine Tools (공작기계지능화를 위한 에이전트 기반 의사결정지원시스템)

  • Lee, Seung-Woo;Song, Jun-Yeob;Lee, Hwa-Ki;Kim, Sun-Ho
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.29 no.1
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    • pp.87-93
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    • 2006
  • In order to implement Artificial Intelligence, various technologies have been widely used. Artificial Intelligence are applied for many industrial products and machine tools are the center of manufacturing devices in intelligent manufacturing devices. The purpose of this paper is to present the design of Decision Support Agent that is applicable to machine tools. This system is that decision whether to act in accordance with machine status is support system. It communicates with other active agents such as sensory and dialogue agent. The proposed design of decision support agent facilitates the effective operation and control of machine tools and provides a systematic way to integrate the expert's knowledge that will implement Intelligent Machine Tools.

Multi-regional Anti-jamming Communication Scheme Based on Transfer Learning and Q Learning

  • Han, Chen;Niu, Yingtao
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.7
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    • pp.3333-3350
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    • 2019
  • The smart jammer launches jamming attacks which degrade the transmission reliability. In this paper, smart jamming attacks based on the communication probability over different channels is considered, and an anti-jamming Q learning algorithm (AQLA) is developed to obtain anti-jamming knowledge for the local region. To accelerate the learning process across multiple regions, a multi-regional intelligent anti-jamming learning algorithm (MIALA) which utilizes transferred knowledge from neighboring regions is proposed. The MIALA algorithm is evaluated through simulations, and the results show that the it is capable of learning the jamming rules and effectively speed up the learning rate of the whole communication region when the jamming rules are similar in the neighboring regions.

The Effect of Information Quality and System Quality on Knowledge Service Competence: Focusing on Knowledge Service Types (지식서비스의 정보품질과 시스템품질이 지식서비스 역량에 미치는 영향: 지식서비스 유형을 중심으로)

  • Geun-Wan Park;Hyun-Ji Park;Sung-Hoon Mo;Cheol-Hyun Lim;Hee-Seok Choi;Seok-Hyoung Lee;Hye-Jin Lee;Seung-June Hwang;Chang-Hee Han
    • Information Systems Review
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    • v.21 no.4
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    • pp.1-29
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    • 2019
  • The knowledge resources take a role in promoting the sustainable growth of organization. Therefore, it is important for the members of organization to acquire knowledge consistently so that the company can continue to grow. Knowledge service is the field that provides information and infrastructure which enable the members of organization to acquire new knowledge. As we recognized the importance of knowledge services, we analyzed the level of knowledge service management and development through the impact of knowledge quality on user capabilities. First, the matrix of knowledge patterns was presented based on the type of information and the level of customer interaction. According to patterns, the knowledge service was classified into three types of information providing, information analysis, and infrastructure, and then the results of structural model analysis were presented for each type. It found that the impact of knowledge service quality on user competence was different according to the type of service. The results suggested new indicators for measuring the performance of knowledge services, and provided information for reconstructing services based on the user considering the integrated operation of knowledge service and organizational designing knowledge service.

A Study on the Design of the Knowledge Management System for Medical Information Services in a Public Library (공공도서관 의학정보서비스를 위한 지식관리시스템 설계에 관한 연구)

  • 이란주
    • Journal of the Korean Society for information Management
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    • v.18 no.3
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    • pp.63-86
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    • 2001
  • Consumer health information is receiving more attention than ever before. This growing attention can be linked to the Internet and to people seeking more information on health topics. The purpose of this study is to suggest a design of the Knowledge management system for medical information services in a public library. As theoretical backgrounds, it discusses the issues regarding to the medical information services in a public library, knowledge management and knowledge management system. After that, 12 medical information sites are analyzed then the planning and the main menu of a medical information site for a public library are described. Finally, the model of the knowledge management system for a public library with 5 sub-systems are suggested: 1) knowledge creation system, 2) technology support system, 3) training system, 4) community service system, 5) knowledge sharing and network system. This system based on knowledge management will help provide the users high quality of medical information.

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Exploring Welfare Discourse in Korea Based on M. Foucault's Power And Knowledge Relations (M. Foucault의 권력지식관계론에 기초한 한국의 복지담론 해석)

  • Seo, Jeonghoon
    • Korean Journal of Social Welfare
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    • v.67 no.4
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    • pp.79-101
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    • 2015
  • What is the role of welfare discourse? Michel Foucault suggests the power and knowledge relation that power in a particular society and period controls the society and members by creating knowledge affecting the formation of cognitive and normative systems. Having the formation of exclusions(constraint of cognition), and materiality and reality(normative system) as an analytical framework, this article attempts the exploration of welfare discourse analyses with public statements relating to welfare subjects of the four former Korean presidents. As a result, It is found that dominant epistemic system is formed by balancing welfare and growth and regarding jobs as the best welfare(the linkage of welfare-growth-employment), emphasizing individual economic responsibility and self-reliance, pursuing welfare selectivism, and excluding comprehensive welfare provisions. At the same time, it is observed that power is not always formulating systematic knowledge and that there is a gap between cognition and norm. While the Foucauldian discourse analysis provides a causal inference about low social welfare expenditure, excessive focus on the role of power as knowledge generator and infuser causes a question of how to accommodate contemporary changes into knowledge system.

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A Multimedia Bulletin Board System Providing Semantic-based Searching (의미 기반 정보 검색을 제공하는 멀티미디어 게시판 시스템)

  • Jung Eui-Hyun
    • Journal of the Korea Society of Computer and Information
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    • v.10 no.6 s.38
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    • pp.75-84
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    • 2005
  • Bulletin board systems have evolved to support diverse multimedia data as well as text. However, current board systems have an weakness : it takes much time and efforts for users to figure out contents of articles. Most board systems provide a searching function with lexical level data access for solving that problem, however it fails to serve users' intented searching results. Moreover, it is nearly impossible to search proper articles if they contain multimedia data. This paper proposed a bulletin board system adopting the Semantic Web to solve this issue. The proposed system provides users with new ontology which is used for describing articles' domain knowledge and multimedia features. Users can describe their own board ontology using the proposed ontology. To support semantic-based searching for diverse domain knowledge without modification of the system, the system dynamically generated input/query interface and RDF data access module according to the board ontology written by administrators. The proposed board system shows that semantic-based searching is feasible and effective for users to find their intended articles.

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Design of Knowledge Model of Nursing Diagnosis based on Ontology (온톨로지에 기반한 간호진단 지식모델의 설계)

  • Lee, In-Keun;Kim, Hwa-Sun;Lee, Sung-Hee
    • Journal of the Korean Institute of Intelligent Systems
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    • v.22 no.4
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    • pp.468-475
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    • 2012
  • Nurses have performed their nursing practice according to the standard guidelines such as NANDA, NIC, and NOC, and recorded the information on nursing process into EMR system. In particular, NANDA, nursing diagnosis taxonomy, has difficulty expressing nursing diagnosis in detail because it represents abstract concepts of nursing diagnosis. So, the hospitals in KOREA have developed and used the list of nursing diagnosis on their own without referring the international standard terminologies, and it caused the delay of computerization of nursing records. Therefore, we proposed a ontology development methodology on nursing diagnosis based on NANDA and SNOMED-CT. The developed ontology, systematically developed with the frequently used nursing diagnosis terminologies in each hospital, based on the proposed methodology enables knowledge expansion and interoperable exchange of nursing records between EMR systems. We developed an ontology using the 112 nursing diagnosis terms defined by extracting and refining information on nursing diagnosis recorded in Kyungpook National University Hospital. We also confirmed the content validity and the usefulness of the developed ontology through expert assessment and experiment.

Study on the Application of a Decentralized Identity System within University Based on Zero-Knowledge Proof for Self-Sovereign Identity Assurance (자기주권 신원 보장을 위한 영지식증명 기반의 대학 내 DID 시스템 적용방안 연구)

  • Im Sung Sik;Kim Seo Yeon;Kim Dong Woo;Han Su Jin;Lee Ki Chan;Oh Soo Hyun
    • Convergence Security Journal
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    • v.24 no.2
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    • pp.141-150
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    • 2024
  • With the increasing frequency of incidents related to personal information leaks, there is a growing concern about personal information protection. Moreover, with the emergence of blockchain technology, there is a heightened interest in self-sovereign identity models applied through blockchain, with ongoing research on Decentralized Identifiers (DID) to achieve this. However, despite universities storing and utilizing significant information such as personal data, their computer systems are operated and managed based on centralized systems, leading to annual occurrences of personal data breaches. Therefore, this paper proposes and implements a DID-based computing system applicable within universities. Additionally, it establishes and executes prominent services within the university context. The proposed system ensures users' self-sovereign identities through verifiable credentials, enabling the establishment of a secure integrated information system within the university, departing from traditional centralized systems.

Trends and Future Directions of Quality Control and Reliability Engineering (품질 및 신뢰성 분야의 동향과 발전 방향)

  • Yum, Bong-Jin;Seo, Sun-Keun;Yun, Won Young;Byun, Jai-Hyun
    • Journal of Korean Institute of Industrial Engineers
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    • v.40 no.6
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    • pp.526-554
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    • 2014
  • Industrial engineering has played a central role in creating knowledge on quality control and reliability engineering (Q&R) and delivering such knowledge to various industries. This special issue paper is prepared in celebration of the $40^{th}$ anniversary of the Korean Institute of Industrial Engineers (KIIE), and includes discussions on how Q&R areas have evolved over almost 100 years and on the current domestic and international trends of Q&R activities in industry as well as in academia. To identify academic research trends, all Q&R related papers published in the Journal of the Korean Institute of Industrial Engineers (JKIIE) and IE Interfaces are examined and classified according to their research topics. Recent Q&R related papers published in IIE Transactions are also examined and classified in a similar manner, and the papers published in KIIE journals are compared with those in IIE Transactions with respect to the research areas emphasized, yearly trend of each research area, type of systems studied, research approaches and methodologies adopted, etc. In addition, quality control activities in domestic industries are evaluated based on a recent survey conducted by Korea Productivity Center, and for domestic reliability engineering activities, government-led projects and their accomplishments over the past decade are introduced. Based on the above, recommendations are made for the future directions of academic research and Q&R activities in industry.