• 제목/요약/키워드: Prioritization

검색결과 362건 처리시간 0.03초

PageRank 알고리즘을 활용한 사이버표적 중요성 순위 선정 방안 연구 (A research on cyber target importance ranking using PageRank algorithm)

  • 김국진;오승환;이동환;오행록;이정식;신동규
    • 인터넷정보학회논문지
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    • 제22권6호
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    • pp.115-127
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    • 2021
  • 전 세계적으로 과학기술의 발달에 따라 육·해·공·우주에 이어 사이버공간이라는 영역 또한 전장 영역으로 인식되고 있다. 이에 따라 육·해·공·우주에서 이루어지는 물리적 작전뿐만 아니라 사이버공간에서 이루어지는 사이버 작전 수행을 위한 정의, 체계, 절차, 계획 등 다양한 요소를 설계·수립해야 한다. 본 연구에서는 사이버 작전의 표적처리(Targeting) 중 표적개발 및 우선순위 부여 단계에서 중간표적개발을 통해 선정한 사이버 표적 목록에 대한 우선순위를 부여할 때 고려할 수 사이버 표적의 중요성을 고려 요소로 선정하여 이에 대한 점수를 산출, 사이버 표적 우선순위 선정 점수의 일부로 활용하는 방안을 제시한다. 이에 따라, 사이버 표적 우선순위 부여 과정에서 사이버 표적 중요성 범주를 설정하고, 사이버 표적 중요성 개념 및 기준항목을 도출한다. 도출된 기준항목별 점수산정 및 종합을 위해 PageRank 알고리즘을 기반으로 Event Prioritization Framework 등의 매개변수를 종합한 TIR(Target Importance Rank) 알고리즘을 제안한다. 그리고 스턱스넷 사례 기반 네트워크 토폴로지 및 시나리오 데이터를 구성하여 제안된 알고리즘으로 사이버 표적 중요성 점수를 도출하고 사이버 표적의 우선순위를 선정하여 제안된 알고리즘을 검증한다.

정규화된 PWSCC 민감도 지수를 이용한 Alloy 600 기기 검사 우선순위 선정 (Alloy 600 Components Inspection Prioritization Using the Normalized PWSCC Susceptibility Index)

  • 김태룡;김형준
    • 한국압력기기공학회 논문집
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    • 제12권1호
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    • pp.17-22
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    • 2016
  • Alloy 600 widely used in nuclear power plant is susceptible to primary water stress corrosion cracking (PWSCC). It is important to prioritize the inspection of Alloy 600 components using PWSCC susceptibility index. Plant-specific model for the susceptibility index was reviewed. The normalized PWSCC susceptibility index to a reference value is suggested and applied. The result was found to be reasonable.

K21 보병전투차량에 FMEA 적용을 통한 RPN 평가방법 재정립 (Reestablishment of RPN Evaluation Method in FMEA Procedure for K21)

  • 이창희;양경우;김상부
    • 품질경영학회지
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    • 제40권3호
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    • pp.306-315
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    • 2012
  • Purpose: To ensure good quality munitions, we require quantitative risk management and optimal risk management of system characteristics. Methods: Failure mode and effects analysis (FMEA) is a widely used technique to assess or to improve reliability of products at early stage of design and development. Traditionally, the prioritization of failures for corrective actions is performed by developing a risk priority number (RPN). Results: This paper reestablishes an effective methodology for prioritization of failure modes in FMEA procedure. Revised evaluation criteria of RPN are devised. Conclusion: To verify the proposed methodology, it is applied to RPN evaluation for K21 infantry combat vehicle.

경년열화된 지중 MV급 케이블의 Aging Index (A Health Index of Aged Undeground MV Cables in Domestic)

  • 김용현;김수환;이승원;임장섭
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2015년도 제46회 하계학술대회
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    • pp.1216-1216
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    • 2015
  • In this study, the author apply the VLF(Very Low Frequency) tan-delta data that has been measured at each office of the KEPCO 2012 to the Weibull distribution which is the statistical analysis as previous studies for the remaining life prediction through the improvement of the sensitivity and reliability of the degradation state assessment of underground distribution power cables. Also, in this paper, UCD(Used Cable Diagnosis) Matrix proposed by KEPCO was applied to the hierarchy of assessment prioritization. it suggests Aging Index for condition assessment and high reliability of proper economic replacement cycle using the weight according to the assessment prioritization.

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리스크 기반 테스트 케이스/테스트 세트 가치 추정 모델 (Risk-based Test Case/Test Set Value Estimation Model)

  • 권원일;김종구;권호열
    • 산업기술연구
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    • 제32권A호
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    • pp.125-128
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    • 2012
  • In this paper, we proposed a prioritization method of test cases using a value estimation model of test sets, that are key elements for highly effective software testings as well as involve a large cost factor in software developments and maintenances. Based on previous studies, our idea includes introducing some practical factors of the test case prioritization which critically influence the value of a test case: Relative values of test sets before and after the test running, Average value of these two relative values, Severity of the defect, Risks that are covered, Frequency of use, Change related values, Systematic elicitations, etc. Finally we discussed the usefulness and the expected effects of the proposed scheme.

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현실적 공정 FMEA 평가기준 개발 (Practical Criteria for Process FMEA)

  • 김태혁;장중순;이은열
    • 한국신뢰성학회지:신뢰성응용연구
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    • 제10권2호
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    • pp.123-135
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    • 2010
  • Failure mode and effects analysis (FMEA) is a widely used technique to assess or to improve reliability of products or processes at early stage of development. Traditionally, the prioritization of failures for corrective actions is performed by evaluating risk priority numbers (RPN). In practice, due to insufficient evaluation criteria specific to related products and processes, RPN is not always evaluated properly. This paper reestablishes an effective methodology for prioritization of failure modes in FMEA procedure. Revised evaluation criteria of RPN are devised and a refined FMEA sheet is introduced. To verify the proposed methodology, it is applied to inspection processes of PCB products.

A Primer for Disease Gene Prioritization Using Next-Generation Sequencing Data

  • Wang, Shuoguo;Xing, Jinchuan
    • Genomics & Informatics
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    • 제11권4호
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    • pp.191-199
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    • 2013
  • High-throughput next-generation sequencing (NGS) technology produces a tremendous amount of raw sequence data. The challenges for researchers are to process the raw data, to map the sequences to genome, to discover variants that are different from the reference genome, and to prioritize/rank the variants for the question of interest. The recent development of many computational algorithms and programs has vastly improved the ability to translate sequence data into valuable information for disease gene identification. However, the NGS data analysis is complex and could be overwhelming for researchers who are not familiar with the process. Here, we outline the analysis pipeline and describe some of the most commonly used principles and tools for analyzing NGS data for disease gene identification.

Review of Biological Network Data and Its Applications

  • Yu, Donghyeon;Kim, MinSoo;Xiao, Guanghua;Hwang, Tae Hyun
    • Genomics & Informatics
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    • 제11권4호
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    • pp.200-210
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    • 2013
  • Studying biological networks, such as protein-protein interactions, is key to understanding complex biological activities. Various types of large-scale biological datasets have been collected and analyzed with high-throughput technologies, including DNA microarray, next-generation sequencing, and the two-hybrid screening system, for this purpose. In this review, we focus on network-based approaches that help in understanding biological systems and identifying biological functions. Accordingly, this paper covers two major topics in network biology: reconstruction of gene regulatory networks and network-based applications, including protein function prediction, disease gene prioritization, and network-based genome-wide association study.