• 제목/요약/키워드: Semistructured Data

검색결과 35건 처리시간 0.021초

방향 그래프 기반 XML 데이터 모델과 대수 구현 (Implementation of Algebra and Data Model based on a Directed Graph for XML)

  • 박성희;최은선;류근호
    • 정보처리학회논문지D
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    • 제8D권6호
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    • pp.799-812
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    • 2001
  • 데이터 교환을 위한 표준 형식으로 XML 활용 증가에 따라 데이터베이스 분야에서 XML 처리의 중요성이 증가하고있다. 현재까지 XML 데이터모델과 정규표현 질의 같은 복잡한 질의처리를 위한 XML대수에 관한 연구가 수행되고 있지만 미디에이터 시스템처럼 XML질의 처리 시 기능이 제한적이다. 따라서 이 논문에서는 반 구조데이터 모델을 확장한 방향 그래프 기반 XML 모델을 설계하고 XML 질의를 위한 XML 대수 연산을 정의하며 그 구현기법을 제시한다. XML 대수 연산 구현을 위해 물리적 저장소인 RDBMS를 접근하기 위한 접근 메소드와 패스 인덱스를 이용하여 알고리즘을 구현한다. 아울러 제안 알고리즘의 효율성을 보이기 위하여 반 구조 특성을 가지는 EST유전체 서열에 대한 XML 문서를 대상으로 성능을 평가한다.

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Analysis Testing of Sociocultural Factors Influence on Human Reliability within Sociotechnical Systems: The Algerian Oil Companies

  • Laidoune, Abdelbaki;Rahal Gharbi, Med El Hadi
    • Safety and Health at Work
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    • 제7권3호
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    • pp.194-200
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    • 2016
  • Background: The influence of sociocultural factors on human reliability within an open sociotechnical systems is highlighted. The design of such systems is enhanced by experience feedback. Methods: The study was focused on a survey related to the observation of working cases, and by processing of incident/accident statistics and semistructured interviews in the qualitative part. In order to consolidate the study approach, we considered a schedule for the purpose of standard statistical measurements. We tried to be unbiased by supporting an exhaustive list of all worker categories including age, sex, educational level, prescribed task, accountability level, etc. The survey was reinforced by a schedule distributed to 300 workers belonging to two oil companies. This schedule comprises 30 items related to six main factors that influence human reliability. Results: Qualitative observations and schedule data processing had shown that the sociocultural factors can negatively and positively influence operator behaviors. Conclusion: The explored sociocultural factors influence the human reliability both in qualitative and quantitative manners. The proposed model shows how reliability can be enhanced by some measures such as experience feedback based on, for example, safety improvements, training, and information. With that is added the continuous systems improvements to improve sociocultural reality and to reduce negative behaviors.

기혼여성의 결혼 불만족과 혼외관계에 대한 탐색적 고찰 (An Exploratory Study on Marital Dissatisfaction and Extramarital Relations among married Women)

  • 공미혜
    • 대한가정학회지
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    • 제40권1호
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    • pp.195-208
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    • 2002
  • This study examines how marital dissatisfaction is connected with extramarital relations among married women. To explore this subject,1 am using in-depth interview techniques. The data from 16 married women who involved (and are involving) extramarital relations are collected in semistructured interviews. In this article, I describe four specific types of extramarital relations with particular relevance to marital dissatisfaction: (1) temporary extramarital relations caused by marital dissatisfaction, (2) positive extramarital relations as maintaining dissatisfied marriage, (3) unavoidable extramarital relations as breaking dissatisfied marriage, and (4) extramarital relations as a part of life with satisfied marriage. With these results, I believe that equity theory could be applicable in explaining the relationships between marital satisfaction and extramarital relations. There are limitations when the qualitative research is analyzed. One problem is measurement. It is difficult to measure equality (or equity), life dissatisfaction, and other concepts. furthermore, this study is not abbe to explain causal relationships among equality, life dissatisfaction, actual extramarital relations. The future study should perhaps be in quantitative research focused on the causal model in which all exchange variables are conceptualized and properly measured for the intimate relationship.

PDM/ODB: XML 데이타의 ODMG 표준 객체지향 데이타베이스로의 사상 (PDM/ODB: Mapping XML to ODMG-Compliant Object-Oriented Database)

  • 고봉수;박상원;민경섭;김형주
    • 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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    • 제7권5호
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    • pp.383-391
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    • 2001
  • 전자 문서로의 XML의 가치는 날로 증대하고 있다. XML 문서는 반구조적인 특징을 가지고 있으며, 객체지향 데이타베이스는 이를 모델링하기에 적합하다. 기존 데이타베이스 시스템에 저장하기 위하여 XML 문서의 DTD 정보를 이용하여 스키마를 생성하는 방법은 많이 연구되어 왔다. 본 논문에서는 XML 문서의 의미적인 정보를 보존하는 방법으로 XML 문서를 객체지향 데이타베이스에 저장하였다. 이를 통하여 OQL, C++ 바인딩과 같은 객체지향 데이타베이스의 기능을 활용하여 XML 문서에 대한 검색 등이 가능하게 되었으며, 기존 객체지향 데이타베이스 응용 프로그램을 그대로 사용할 수 있게 하였다.

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Promoting the Quarry Workers' Hazard Identification Through Formal and Informal Safety Training

  • Bae, Hwangbo;Simmons, Denise R.;Polmear, Madeline
    • Safety and Health at Work
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    • 제12권3호
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    • pp.317-323
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    • 2021
  • Background: The surface mining industry has one of the highest fatality rates among private industries in the United States. Despite recent decreases in the fatality rates of comparable industries, the fatality rate in the surface mining industry has increased. Meanwhile, a lack of safety research in surface mining has hindered efforts to improve safety strategies in the surface mining workplace. Method: This study examined quarry workers' hazard identification skills by conducting a case study of a surface mining facility in the Mid-Atlantic region of the United States. Semistructured interviews were conducted with eight quarry workers who were employed at the mine facility. In addition to the interviews, data were collected through field notes, notes from an expert meeting with safety managers, and site photographs to explore quarry workers' safety behaviors in the workplace. Results: The results showed that quarry workers identified hazards and improved their safety performance by translating safety knowledge learned from training into practice, acquiring hands-on work experience, learning from coworkers, and sharing responsibilities among team members. Conclusion: This study contributes to understanding quarry workers' safe performance beyond what they have learned in safety training to include their interaction with other workers and hand-on experience in the workplace. This study informs practitioners in the surface mining industry to build a safe work environment as they design effective safety programs for employees.

포커스그룹인터뷰(FGI)를 통한 응급구조사의 보수교육에 대한 인식 (Perceptions of Continuing Education for Emergency Medical Technicians through Focus Group Interviews)

  • 강민성
    • 한국응급구조학회지
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    • 제28권2호
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    • pp.77-98
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    • 2024
  • Purpose: This study aimed to derive detailed insights into emergency medical technicians' (EMTs) perceptions regarding continuing education. Methods: We conducted a descriptive survey. The interview participants were 20 EMTs, divided into four groups: six Fire Department EMTs, five Hospital EMTs, five Clinical EMTs (excluding the ER and Fire Department), and four Non-Clinical EMTs. Data were collected through focus group interviews (FGIs) and semistructured questionnaires. The interview periods were March 25, 2022, and March 27, 2022. Results: Continuing education was primarily field-oriented, leading to lower satisfaction among non-field EMTs. To enhance satisfaction, training should be tailored to the specific roles and experiences of the EMTs. Additionally, quality management of lectures, instructor selection, and video quality require reconsideration. Key factors that enhance satisfaction include a wider variety of courses, up-to-date information, and relevant course content, regardless of job role or experience. Conclusion: Incorporating feedback into EMTs' perceptions of continuing education can lead to the development of more effective curricula and improved quality management. This approach is expected to enhance both educational satisfaction and job performance.

중장년 남성 급성심근경색증 환자의 심혈관위험인자 인식 및 치료추구 장애요인 (Perceptions of Barriers to Cardiovascular Risk Factors and Decision to Seek Treatment among Middle-aged Men with Acute Myocardial Infarction)

  • 황선영;권영란;김애리
    • 성인간호학회지
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    • 제22권5호
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    • pp.537-551
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    • 2010
  • Purpose: This study was designed to identify meaningful themes related to the recognition of lifestyle risk factors and barriers in seeking treatment following an acute event of first-time acute myocardial infarction. Methods: A methodological mixed method of thematic content analysis and a quantitative analysis was used. The sample consisted of 120 male patients < 65 years of age who agreed to be in the study were interviewed using a semistructured during 2008-2009. Data were analyzed according to the procedure of thematic content analysis and the meaningful themes were coded into SPSS data for quantitative analysis. Results: Pre-hospital delay greater than three hours reported by 58.3% (n=70) of the sample and similarly 63.3% had no recognition about their symptoms as cardiac in origin. The mean number of risk factors was $3.9{\pm}1.8$ out of 11 when lifestyle and psychosocial factors were included. From the interview data among the 70 patients delayed greater than three hours, thirty-five themes categorized into 12 main themes influenced the delayed decision which was identified according to personal-cognitive, socio-cultural, and contextual factors. Conclusion: Health care providers should consider these themes in designing individual interventions to make lifestyle changes and to facilitate more prompt decisions to seek care.

스키마가 없는 XML 문서에서의 재사용 가능한 XML Schema 추출 기법 (Technique for extracting reusable XML Schema from schema-less XML Documents)

  • 조정길;구연설
    • 정보처리학회논문지D
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    • 제10D권4호
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    • pp.603-612
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    • 2003
  • 웹의 발전으로 인터넷상에 XML 문서의 양이 증가하면서 클라이언트에서 수신된 XML 데이터를 검증하고 데이터베이스에 효율적으로 저장하고 질의하는데 필요한 많은 연구들이 진행되고 있다. 이러한 작업들을 처리하기 위해서는 XML 문서의 DTD나 XML Schema가 필요하다. 그러나 스키마가 없는 XML 문서는 DTD나 XML Schema가 없기 때문에 이러한 작업들을 처리할 수가 없다. 이에 이 논문에서는 well-formed XML 문서이거나 XML Schema가 없는 XML 문서에서 XML 데이터를 검증하고 데이터베이스에 효율적으로 저장하고 질의할 수 있도록 XML Schema론 추출한다. 이 논문에서 제안하는 XML Schema 추출 방법은 반구조적 데이터의 스키마 추출 기법인 데이터가이드와 시뮬레이션을 적용하여 스키마가 없는 XML 문서에서 스키마 그래프를 추출한다. 그리고 스키마 그래프와 재사용성을 고려한 패턴 테이블을 이용하여 XML Schema를 추출하는 기법을 제안한다.

학령전기 아동의 건강/질병 개념에 관한 연구 (A Study on Health / Illness Concepts of Preschoolers)

  • 이은주
    • 대한간호학회지
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    • 제22권2호
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    • pp.143-156
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    • 1992
  • This descriptive study explored the health and illness concepts of preschoolers to provide understanding on which to build research. The subjects were convenience sample three to six year of age attending one art institute in Cheju city. Data were collected through semistructured interviews by author, Children were asked to draw two figures, one healthy and one ill persons. The drawings were not analysed to grasp the meaning as in a projective technique, but only to relate to their response. Data were coded and categorized by content analysis. The results of this study are summarized as follows : 1) Three year olds responded with some unrelated answers but well to questions related to their experiences of illness ; older participants answered questions related health and illness concepts more easily. Generally the levels of subjects' responses did not differ according to age and sex. 2) Preschoolers' answers about the cause, treatment and prevention of illness, and the meaning and promotion of health were coded and then classificated to 9 categories, (food, obedience to authoritys physical function, presence or absence of illness or symptoms, hygiene. treatment, traumatic injury, rest and germs). Food and obeidence to authority categories were most frequent responses the food category was associated with obeidence to authority because it seemed that the children follow the orders of their parents or other authority figures to eat or not to eat something This result was compatible with that of previous studies that preschoolers perceived illness as possible punishment for misbehavior. Participants except for one four year old boy did not suggest that germs cause illness. The children perceived themselves and their families as healthy even though they had symptoms of illness. 3) Preschoolers' health and illness concepts were. influenced by their experiences and related to their development that rules derived from authority and if not complied with, will bring punishment. These oonceptualizations may be the disparity that they perceived themselves and their families as healthy even though they were ill. A previous study by Perrin and Gerrity suggested that the level of children's illness concepts correlated with that of their physical causality and was lower than it. But the levels of health and illness concepts in this sample higher than those of the physical causality.

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사이버상의 놀이 공간으로서 청소년의 덕후 문화 (Deokhu's culture in adolescent as a play space on Cyber)

  • 허정경
    • 디지털융복합연구
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    • 제16권3호
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    • pp.87-94
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    • 2018
  • 본 연구는 사이버상의 놀이 공간으로서 청소년이 경험한 덕후 문화에 대한 본질적 의미를 탐색하기 위하여 수행되었다. 이를 위해 서울 잠실에 거주하고, 덕후에 해당되는 13~17세 청소년 18명을 대상으로, 반구조적인 질문형식을 사용한 심층면담을 통해 수집한 현상학적 질적 연구방법을 적용하여 분석하였다. 그 결과, 청소년의 덕후 문화는 스트레스나 사회정서적 욕구로 인해 시작되고, 특히, SNS활동을 중심으로 팬덤, 굿즈 상품 구매 행위의 사이버상에서 놀이 공간으로 활용되고 있었다. 이것은, 덕후로서의 자기 인식과 자아정체성 형성에도 긍정적인 영향을 미치는 것으로 나타났다. 무엇보다, 입시 중암감으로 인한 놀이시간의 부족과 사회적으로 제공되는 놀이공간의 부족은 청소년들에게 사이버 공간을 또 다른 놀이공간으로 만들도록 하고 있다.