• 제목/요약/키워드: Hierarchical Class

검색결과 197건 처리시간 0.026초

보안을 위한 공격 행위 감지 메타-모델링 (Meta-Modeling to Detect Attack Behavior for Security)

  • 온진호;최영복;이문근
    • 정보과학회 논문지
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    • 제41권12호
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    • pp.1035-1049
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    • 2014
  • 본 논문은 행위 온톨로지(Behavior Ontology)의 개념을 기반으로 한 보안-중심 시스템 안의 공격 패턴을 감지하기 위한 방법을 제안한다. 일반적으로 보안-중심 시스템들은 매우 규모가 크고 복잡하며, 가능한 모든 방법으로 공격자에 의해 공격된다. 그러므로, 공격 감지를 위한 몇 가지의 구조적 방법을 통해 다양한 공격들을 감지하는 것은 매우 복잡하다. 본 논문은 행위 온톨로지를 통하여 이러한 문제를 극복한다. 시스템 안의 공격의 패턴들은 시스템의 클래스 온톨로지에서 정의된 행동(Action)들을 순서에 따라 나열함으로써 정의된다. 공격 패턴이 행동들의 순서로 정의됨으로써 격자와 같이 포함관계를 기반으로 한 계층적인 순서로 추상화될 수 있다. 공격 패턴을 위한 행위 온톨로지가 정의되면, 대상 시스템 안의 공격들은 온톨로지의 구조 안에서 의미적이고 계층적으로 감지될 수 있다. 다른 공격 분석 모델들과 비교해보면, 본 논문에서의 행위 온톨로지를 통한 분석은 시간과 공간적으로 매우 효율적이고 효과적인 방법이다.

농촌경관정책의 실효성을 위한 평가요소 도출 (Evaluation Elements for Effectiveness of Rural Landscape Policy)

  • 박지훈;이용학;강은지;김용근
    • 농촌계획
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    • 제22권3호
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    • pp.81-96
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    • 2016
  • For rural landscape management to run in virtuous circle, the present study has paid attention to the roles and activities of local residents and administration, which are the main sectors of managing landscape. In this respect, this study is aimed to arrange the roles of local residents and administration for landscape management and propose the basic data necessary to develope evaluation index for effectiveness of rural landscape policy. Key findings and implications are as follows. First, literature reviews of 18 landscape management studies found 37 administrative roles and 7 roles of local residents. And those roles were classified into 3 factors by similar concept: 'local government support system', 'landscape management planning', and 'promoting the participation of residents'. Second, two Delphi surveys were conducted with landscape experts to verify the validity of those evaluation items by sector. Third, factor analysis was carried out to analyze the hierarchical structure of those evaluation items. 3 sub-factors were extracted from 'local government support system' sector; 2 sub-factors from the 'landscape management planning' sector; and 4 sub-factors from the 'promoting participation of residents' sector. Fourth, the hierarchy of those evaluation factors was divided into high and low classes and sub-indexes were structured to examine the relative importance of each class and assign a relative weight on each index. The most important sub-factors were turned out as follows: 'local residents' will to practice landscape activities (0.112)', 'local government budget for rural landscape management (0.088), and 'restriction on buildings by village regulation (0.068). It indicates the viewpoints of the landscape experts that local residents' voluntary participation in landscape activities and agreement of local residents on landscape management by village, e.g. village regulation, are preconditions for successful landscape management. In addition, it is significant for a local government to secure the budget of landscape management to support local residents support.

여배우의 몸과 권력, 그리고 저항: SBS의 고 장자연 자필편지사건 관련보도를 중심으로 (Body of Actress, Power and Resistance : focused on SBS News on Jang Ja-Yeon's Letters)

  • 홍숙영
    • 한국콘텐츠학회논문지
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    • 제11권12호
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    • pp.649-657
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    • 2011
  • 본 연구는 여배우의 몸에 대한 뉴스의 이데올로기적 함의를 알아보기 위하여 고 장자연 자필편지사건을 특종 보도한 SBS TV 8시 뉴스를 중심으로 텍스트와 이미지를 분석하였다. 뉴스의 이야기구조는 편지 사본에서 내용을 발췌하여 술접대 성상납, 접대를 강요당한 또 다른 여성 연예인, 리스트, 복수, 자살 등 선정 적인 방향으로 전개되고 있었다. 한편 '무명의 신인 여배우'로 명명된 그녀는 여성이자 신인, 무명으로 낮은 계급에 위치하고 있었으며, 권력을 지니지 못한 여성의 몸은 권력을 가진 자들에 의해 소비되고 물화되는 것으로 나타났다. 뉴스에서 여배우는 순백의 여신이자 귀여운 소녀, 섹시한 여성으로 재현되는 대중문화 속의 이미지를 보여주며, 이 때 '몸'은 상품가치의 근간이자 상품이 된다. 그러나 이러한 몸은 본질과 분리되고, 자신의 몸으로부터 소외당한 여성은 죽음으로 저항하지만 '몸의 부재'로 끝난다. 남성중심주의적, 소비 지향적, 계급주의적 이데올로기가 반영된 뉴스에서 한 여배우의 몸은 철저히 소비되고, 동시에 소외되는 것을 알 수 있다.

시맨틱 웹 문서에 대한 키워드 검색 및 랭킹 기법 (Keyword Search and Ranking Methods on Semantic Web Documents)

  • 김연희;오성균
    • 한국위성정보통신학회논문지
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    • 제7권3호
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    • pp.86-93
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    • 2012
  • 본 논문에서는 시맨틱 웹에서 온톨로지와 메타데이터를 기술하는 OWL 문서를 대상으로 하는 키워드 검색 기법과 랭킹 기법을 제안한다. 제안한 키워드 검색 기법은 OWL 문서에 대한 키워드 검색 결과의 단위를 정보 리소스로 정의하고 질의 키워드의 범위를 클래스와 프로퍼티의 이름은 물론 리터럴 데이터까지 확장하였다. 그리고 클래스나 프로퍼티의 계층 관계, 동등 관계 등 OWL 문서에 정의되어 있는 기본적인 추론 요소들을 고려하여 직접 기술되어 있지 않지만 새롭게 유도되는 정보도 키워드 검색에 반영하였다. 또한 키워드를 통해 간접적으로 의미적 관계를 맺고 있는 정보 리소스에 대한 검색이 가능하기 때문에 질의 키워드와 관련이 있는 많은 수의 정보 리소스들을 검색할 수 있다. 제안한 랭킹 기법은 OWL 문서의 특성을 고려하여 다양한 요소를 순위 결정에 참여시킴으로써 사용자의 검색 만족도를 높일 수 있다. 본 논문에서 제안한 키워드 검색 기법과 랭킹 기법은 방송 프로그램과 같은 디지털 콘텐츠의 검색 등 다양한 분야에서 활용될 수 있다.

동적 베이스망 기반의 걸음걸이 분석 (Dynamic Bayesian Network-Based Gait Analysis)

  • 김찬영;신봉기
    • 한국정보과학회논문지:소프트웨어및응용
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    • 제37권5호
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    • pp.354-362
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    • 2010
  • 본 연구는 동적 베이스 망을 이용하여, 사람의 보행 동작을 보행 방향과 보행 자세로 분리하여 계층적으로 분석하는 방법을 제안한다. DBN의 일종인 FHMM을 기본 바탕으로 하여, 걸음걸이 동작 특성을 고려하여 순환 고리형 상태 공간 구조로 '보행 동작 디코더'(Gait Motion Decoder, GMD)를 설계한다. 기존 연구에는 보행자의 식별에만 치중을 하고 보행 방향의 변화, 관찰 각도에 제한적이거나 보행 동작에 대한 분석이 없었다. 반면에 본 연구에서는 동작과 자세를 적극적으로 표현하여 임의 방향의 보행, 방향의 변화, 보행 자세까지 인식할 수 있도록 하였다. 실험 결과 동작과 자세의 관점에서 걸음걸이 방향을 분석한 결과 96.5%의 방향 인식률을 기록하였다. 본 연구는 보행 동작을 방향과 보행 자세로 계층적으로 분석하는 최초의 방법 및 시도이며 향후 상황별 휴먼 동작 분석에 크게 활용할 수 있을 것이다.

객체지향 방법론을 이용한 자동차부품기업의 영업관리시스템 설계 및 구현 (Design and Implementation of Marketing and Sales Information System for Automotive Part Company Using Object-Oriented Methodology)

  • 강성배;문태수
    • 한국정보시스템학회지:정보시스템연구
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    • 제13권1호
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    • pp.77-95
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    • 2004
  • According to the increase of organizational complexity and the change of rapid information technology environment, many firms have shifted their information technology(IT) strategy from developing information systems in-house to purchasing application software such as Enterprise Resource Planning(ERP) Systems. Marketing and Sales functions within a Korean automotive part company include developing new assembly products, determining pricing, taking customer's orders, and shipping assembly products to customers. Marketing and Sales Information System(MSIS) in ERP system plays an important role in next Production Planning process. MSIS also makes management reporting and decision making faster and more uniform throughout an organization. MSIS promotes thinking about corporate goals, as opposed to thinking only about the goals of a single department or functional area. This paper intends to design and implement a MSIS in ERP systems for Korean automotive part company using object-oriented methodology In order to accomplish the implementation of MSIS in ERP system, we employed UML as its standard modeling language. In this study, four diagramming techniques such as use case diagram, sequence diagram, class diagram, component diagram among eight modeling techniques are used for analyzing hierarchical business process. In traditional marketing and sales function, a company with an unintegrated information system can have marketing and sales data that is data redundant or inaccurate. MSIS integrated in ERP system can solve the sales forecast problem, which minimizes the total costs of production, inventory, and transportation under constraints of production capacity. Also, the use of UML methodology makes S/W programmers shorten the phase of analysis and design in the implementation of MSIS system, and increase the reuse of software and the interoperability with corporate internal Information system.

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어머니의 분리불안, 교사-영아관계가 만 1.2세반 아동의 어린이집 적응에 미치는 영향 (The Effects of Maternal Anxiety and the Teacher-Child Relationship on the Adjustment of 1- and 2-year-old Children in a Child-Care Center)

  • 양숙경;문혁준
    • 가정과삶의질연구
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    • 제28권2호
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    • pp.131-146
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    • 2010
  • This study examined the effects of maternal anxiety and the teacher-child relationship on the adjustment of 1- and 2-year-old children in a child-care center. The subjects were 344 working mothers who were raising 19- to 42-month-old children and 106 class teachers in Seoul, Gyeong-gi and lncheon. Data analysis was done using the SPSS WIN 15.0 version an d the collected data were subjected to a descriptive statistical analysis, t-test, one-way ANOVA, Scheff$\acute{e}$ s post-test and hierarchical multiple regression analysis. The results of this study are as follows : (a) children's adaptability to child-care centers varied with their sex, age, and the existence of siblings. Girls and children of higher age were more adaptable than boys and younger children. Children who have siblings were more adaptable compared to those who were the only child in the family. Also, children who were enrolled at a workplace provided child-care center were more adaptable than those who entered other kinds of child-care centers. (b) The teacher-child relationship influences the adjustment of children in a child-care center. It was found that the teacher-child relationship is the strongest indicator to predict how well the child will adjust to the child-care center.

영·유아기 타인양육이 학령전 어린이의 사회정서적 행동에 미치는 영향 (Effects of early nonparental care on preschoolers' socioemotional behaviors)

  • 박경자
    • 아동학회지
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    • 제13권2호
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    • pp.217-228
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    • 1992
  • The purpose of this study is to examine the effects of early full-time nonparental care during infancy/toddlerhood on children's socioemotional behaviors during the preschool period. Subjects for this study were 105 three- to five-year-olds from middle-class families in the U. S. A. Children were assigned to one of three groups according to their early care history. Children's social interactions with peers and caregivers during indoor free-play sessions in day care centers were observed for 20 minutes. The head teachers rated the children's social and emotional behaviors on two questionnaires. Mothers completed the Attachment Q-sort for attachment assessment for the preschoolers. In addition, mothers were asked to fill out a questionnaire on their parenting practices. Children who had received full-time nonparental care during infancy and/or toddlerhood were rated by their teachers as being more intellectually competent than children who did not receive full-time nonparental care during first three years of life. They were, however, rated by teachers and were observed by the researcher as being more aggressive than children with no full-time nonparental care. These children were observed to engage in less wandering/onlooking behaviors than children who had not had any full-time nonparental care. Children's attachment security scores and dependency scores did not differ as a function of early nonparental care histories. When the effects of early care patterns, sex of child, and current attachment security to mothers on aggressive behaviors of the preschoolers were examined by a hierarchical regression model, then any "pure" effects of nonparental care and of attachment security on child aggression were minimal after controlling for family background, child care center quality, and maternal childrearing practices. Strong buffering factors for the preschool children (family characteristics, parenting styles, and high quality nonparental care) mediated a possible risk factor of early nonparental care and promoted optimal outcomes for the children.

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A Hyper Suprime-Cam View of the Interacting Galaxies of the M81 Group - Structures and Stellar Populations

  • Arimoto, Nobuo;Okamoto, Sakurako
    • 천문학회보
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    • 제42권2호
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    • pp.39.2-39.2
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    • 2017
  • Over the last decade, deep studies of nearby galaxies have led to the discovery of vast stellar envelopes that are often rich in substructure. These components are naturally predicted in models of hierarchical galaxy assembly, and their observed properties place important constraints on the amount, nature, and history of satellite accretion. One of the most effective ways of mapping the peripheral regions of galaxies is through resolved star studies. Using wide-field cameras equipped to 8 m class telescopes, it has recently become possible to extend these studies to systems beyond the Local Group. Located at a distance of 3.6 Mpc, M81 is a prime target for wide-field mapping of its resolved stellar content. In this talk, we present the detailed results from our deep wide-field imaging survey of the M81 group with the Hyper Suprime-Cam (HSC), on the Subaru Telescope. We report on the analysis of the structures, stellar populations, and metallicities of old dwarf galaxies such as NGC3077, IKN, KDG061, as well as young stellar systems such as Arp's Loop and Holmberg IX. Several candidates for yet-undiscovered faint dwarf galaxies and young stellar clumps in the M81 group will also be introduced. The peculiar galaxy NGC3077 has been classified as the irregular galaxy. Okamoto et al. (2015, ApJ 809, L1) discovered an extended halo structure with S-shape elongated tails, obvious feature of tidal interaction. With a help of numerical simulation by Penarrubia et al. (2009, ApJ 698, 222), we will demonstrate that this tidal feature was formed during the latest close encounters between M81, M82, and NGC 3077, which induced star formation in tidally stripped gas far from the main bodies of galaxies. It is not clear whether the latest tidal interaction was the first close encounters of three galaxies. If NGC3077 is still surrounded by the dark matter halo, it implies that NGC3077 has undergone the first tidal stripping by larger companions. Kinematic studies of inter galactic globular clusters and planetary nebulae would tell us the past history of tidal interaction in this group of galaxies.

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근대(近代) 기생(妓生)의 민속무(民俗舞) 공연복식에 관한 연구 (A Study of Gisaeng Performance Costume for Folk Dance in Early Modern Korea)

  • 김지혜;조우현
    • 복식
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    • 제59권10호
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    • pp.137-150
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    • 2009
  • Performance costumes are an important element in the stages which set the tones and embody characters in the performances. This study focuses on Gisaeng's costumes in folk dance performances when Korea experienced modernization from Joseon Dynasty, and aims to examine the features of the costumes as well as how the costumes both influenced, and got influenced by, the rapidly changing society. Gisaeng had been legal entertainment performers of the government in the Joseon Dynasty and, despite careful training and talents, had inferior social status in Joseon's social hierarchy system. In the modern society, a new system of Gisaeng emerged and the first public theater opened. The advent of theaters changed performance stages and the ways performances are conducted. This study investigated Gisaeng's performance costumes by the type of folk dances, such as monk dance, palace dance, Salfuri dance, Jangu dance, and Ip dance. The study brings light to three conclusions. First, as folk dances which had been performed by civil dancers were spread to Gisaeng, Gisaeng's costumes absorbed the costumes of civil dancers. Also, royal costumes appeared in folk dance performances. This can be viewed as mixture of royal and folk dance costumes, resulted from interactions between Gisaeng and civil art performers associated with the modernizing society and the weakening of the old hierarchical class system. Second, as performing arts on stages were modernizing, performance costumes changed accordingly. Thirdly, Giseang's costumes in folk dances also adapted the introduction of the western culture, which largely influenced the fashion trends of people in the early modern society in Korea.