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IoT 환경에서 상황정보에 따른 시맨틱 기반 서비스 제공을 위한 온톨로지에 관한 연구
우동희(Dong Hee Woo),유민규(Min Kyu Yoo),김윤호(Yoon Ho Kim) 한국전자거래학회 2016 한국전자거래학회지 Vol.21 No.3
IoT 기술과 시맨틱 기술의 결합을 통한 상황인지 기반의 서비스를 제공하는 많은 연구가 활발하게 진행 중이다. 하지만 시맨틱 기술인 온톨로지를 이용한 서비스를 제공하는 선행 연구는 특정 서비스 시나리오를 도메인으로 선정하여 온톨로지를 구축했기 때문에 서비스 요구사항 등의 변경을 수용하기에는 한계를 가지고 있다. 이를 극복하기 위해 크로스 버티컬 온톨로지 개념이 등장하였지만 상황정보를 표현하기 위해 서비스 환경을 구성하는 요소 이외의 추가적인 요소를 필요로 하며, 환경구성요소의 상태정보를 표현하지 못하는 한계가 있다. 이와 같은 한계를 극복하기 위해 본 논문은 상황정보를 표현하기 위한 요소를 추가하지 않으면서, 환경구성요소의 상태표현이 가능한 SISO(Semantic-based IoT Service Ontology)를 제안한다. 이와 같은 SISO의 특징을 검증하기 위해 서비스 시나리오를 선정하고, 시나리오에 따라 적용한 결과를 제시하였다. 또한 서비스 시나리오 적용 결과를 기반으로 선행연구와의 정성적 비교결과를 제시하였다. The many researches on context-aware service based on the combination of semantic technology and IoT environment are being actively done. However, the previous study exploiting ontology has limitations not to accommodate the service requirement changes due to ontology prebuilt by specific service scenario. Although the concept of cross vertical ontology has emerged in order to overcome the limitation, it has other limitations that need additional components composing service environment for expressing context information and can’t represent state information of environment elements. To cope with these limitations, we propose SISO (Semantic-based IoT Service Ontology) that can represent the states of environmental element without the need for additional context-information element. To verify SISO’s characteristics, we select the service scenario and present applied results. The qualitative analysis comparing with the previous study is also presented by the applied results of service scenario.
일반건강측정도구(PWI)를 이용한 사무직근로자들의 스트레스와 관련요인
유민규,조영채,장성실 충남대학교 의과대학 지역사회의학연구소 1999 충남의대잡지 Vol.26 No.1
This study was performed to analyze the association of the stress measured through a modified GHQ(General Health Questionnaire) and the related factors including general and occupational characteristics in 998 bank clerks. The results were as follows; 1. Among the subjects, men were 446(56.2%) and women were 348(43.8%). Women composed the majority of younger, lower education, lower income and lower position groups than men. 2. Women workers showed very much higher scores in PWI and four items -Social performance and self-confidence(SS1), Depression(SS2), Sleeping disturbance and anxiety(SS 3), General well-being and vitality(SS4)- of the stress survey. 3. Among women, workers of high risk of stress were 89(25.6%), which was very significantly higher prevalence than that of man workers, 59(13.2%). 4. Increasing the frequencies of weekly drinking alcohol beverage and daily smoking, more daily working time, decreasing the frequency of weekly excercise and sleeping hours related to increasing more than two scores of stress items. 5. In women, lower BMI and education level, more family inhabitants, decreasing sleeping hours related to increasing more than two scores of stress items(PWI, SS1-SS4). Considering above all things, woman workers showed higher scores in all stress items than those of man workers. And the factors related to each stress items were different between men and women, which should be considered in planning any mental health promotion project for these groups.