• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2011년도 추계학술발표대회
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• pp.365-368
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• 2011

본 논문은 계속적으로 움직이는 Pan & Tilt 카메라를 가지고 객체를 안정적으로 추적하기 위해 Level Set 알고리즘과 Pan & Tilt 카메라간의 상호 유동적인 시스템을 설계하는 방법에 대하여 기술하고 있다. 특정객체를 Pan & Tilt 카메라로 계속적으로 추적하고자 할 때는 안정적인 배경영상을 얻을 수 없기 때문에 MOG 와 같은 통계적인 추적알고리즘을 쓰는 것이 불가능해진다. 본 논문에서는 배경 영상이 계속적으로 변하기 때문에 고정된 배경 영상을 가질 수 없는 문제와 이로 인해 객체의 영역을 잘 추출할 수 없다는 한계를 극복하기 위해 Level Set 에 기반한 외곽선 추적 방법을 이용한다. 이 방법은 단지 차영상만을 가지고도 어느 정도 객체의 영역을 추출할 수 있는 방법이다. Level Set 방법은 높은 복잡도를 가지기 때문에 실시간 계산이 빠른 외곽선 추적 방법을 이용하였으며, 이를 통해 실시간 영상에 대한 외곽선 추적을 가능하게 하였다. 그리고 Level Set 기반 외곽선 추출 방법에 의해 객체의 중심점을 구하는 알고리즘과 Pan & Tilt 카메라에 의해 객체를 추적하는 알고리즘 간에 유동적인 연결을 하였다.

• Journal of Information Science Theory and Practice
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• 제11권2호
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• pp.37-66
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• 2023

Scientometrics and research evaluation describe and analyze research publications when conducting publication, citation, and topic analyses. However, what exactly is a (scientific, academic, scholarly or research) publication? This article demonstrates that there are many problems when it comes to looking in detail at quantitative publication analyses, citation analyses, altmetric analyses, and topic analyses. When is a document a publication and when is it not? We discuss authorship and contribution, formally and informally published documents, as well as documents in between (preprints, research data) and the characteristics of references, citations, and topics. What is a research publication? Is there a commonly accepted criterion for distinguishing between research and non-research? How complete and unbiased are data sources for research publications and sources for altmetrics? What is one research publication? What is the unit of a publication that causes us to count it as "1?" In this regard, we report problems related to multi-author publications and their counting, weighted document types, the unit and weighting of citations and references, the unit of topics, and counting problems-not only at the article and individual researcher level (micro-level), but also at the meso-level (e.g., institutions) and macro-level (e.g., countries). Our results suggest that scientometric counting units are not reliable and clear. Many scientometric and research evaluation studies must therefore be used with the utmost caution.

• 한국도서관정보학회지
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• 제42권4호
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• pp.281-309
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• 2011

이 연구는 전자기록물의 첨부물 형태로 수집 관리되는 디지털 연구성과물의 장기보존을 위한 메타데이터요소를 설계하여 제안하였다. 설계는 국내외 연구성과물을 관리하는 기관의 메타데이터 구조와 CERIF와 PREMIS 보존 메타데이터를 참고하였다. 연구결과, 우리나라 디지털 연구성과물의 장기보존을 위한 메타데이터 구조를 연구정보, 서지정보, 기록정보로 구분하였다. 연구정보는 과제, 인명, 기관으로 구분하였으며 8개 상위요소, 29개 하위요소로 구성하였다. 서지정보는 연구성과물인 연구보고서의 서지사항에 대한 요소로써 하위요소 없이 13개의 상위요소로 구성하였다. 기록정보는 연구성과물의 생산을 보고한 전자기록물의 맥락, 구조, 내용, 관리과정에 대한 요소로써, 18개 상위요소와 62개 하위요소로 제안되었다.

• 가정과삶의질연구
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• 제28권3호
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• pp.27-41
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• 2010

In this study, based on the current curriculum of consumer education in high school with the advent of Web 2.0 age, I analyzed both the curriculum used by new information tools related with Web 2.0 age and the one used by traditional tools to find out the degree of necessity of consumer education for the high school students in proportion to the level of their informational ability. First, compared with the education of food, clothes and shelter in the curriculum of manual training and domestic science, the necessity, importance, and availability were low and the students had a lower level of interest than they had with the three factors mentioned above. Second, after dividing the sector of consumer education in the curriculum into three fields such as reasonable purchase and use, solution and prevention of consumer problems and forming a new consumer trend, I looked into the necessity of the teaching method using conventional tools and the one using new informational tools following Web 2.0 age respectively. Traditional tools were favored for the education of consumption-related laws and policies, consumers' rights for the general cause of consumer problem solving and preventing. For the generation of the new comsumer trend, the new information tools were preferred in the appreciation of consuming culture and the issues of consuming environment. Third, it was revealed that students' level of informational ethics was the highest at 5.55 while their level of information creation and processing was the lowest at 3.96 from the research of six categories of their informational ability.

• 한국정보통신학회논문지
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• 제26권8호
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• pp.1205-1212
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• 2022

산업제어시스템 (ICS)을 공격 대상으로 하는 사이버 보안 위협들이 지속적으로 증가하는 추세이며 특히 발전, 가스, 정유 시설과 같은 국가 기반시설에서 발생할 수 있는 사이버 보안 사고는 인명 손실 및 대형 화재와 같이 재난 수준의 사고로 이어질 수 있다. 제어시스템을 목표로 하는 사이버 공격에 효과적으로 대응하기 위해서는 ICS 환경을 고려한 다 계층 방어 전략이 필요하며, 특히 제어 망과 IT 환경에서 발생하는 보안 로그들을 통합된 환경에서 운영하는 전략은 기반시설 침해사고 대응에 있어 효과적인 역할을 한다. 본 연구에서는 제어 망에서 발생하는 보안 로그들을 IT 환경에서 운영하는 SIEM (Security Information and Event Management)으로 전송 하는 방법으로 OPC 프로토콜을 활용하는 방안을 소개하고, 이를 통하여 IEC 62443에서 정의하는 제어시스템 전 계층 (Level 0 ~ Level 4)에서 발생하는 이벤트를 통합할 수 있는 보안 로그 서버 구축 방안을 제시한다.

• 한국임상약학회지
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• 제23권4호
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• pp.327-333
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• 2013

Background: Antihistamine and anti-allergy medications are widely used during pregnancy. Reading label information is one of the easiest ways to get safety information. But there are content gaps among countries. Objective: To compare the risk level and the recommendation level of antihistamine/anti-allergy drug's label information in pregnant women among Korea, the USA, the UK, and Japan. Method: Study drugs of antihistamine/anti-allergy medications were selected according to Korea drug classification codes. Based on the label information of selected product, risk level was classified into 5 categories as follows: 'Definite', 'Probable', 'Possible', and 'Unlikely', 'Unclassified' according to the level of evidence. Recommendation level was classified into 4 categories as follows: 'Contraindicated', 'Cautious', 'Compatible', and 'Unclassified'. Frequency and proportion were presented according to the each category. To estimate agreement of each category among 4 countries, percent agreement and kappa (k) coefficient were calculated. Results: Total 13 drug ingredients were selected for antihistamine/anti-allergy medications. In risk level, Korea (46%) and Japan (69%) were mostly classified in the category of 'Unclassified', but 'Unlikely' category was more frequent in the UK (62%) and the USA (46%). In recommendation level, the proportion of 'Contraindicated' was highest in Korea (46%) compared to other countries. In contrast, the category of 'Cautious' was 77%-85% in the USA, the UK, and Japan. The percent agreement for risk level was highest in the USA-UK (54%). The recommendation level of Korea-USA showed lowest agreement for percent agreement (46%) and kappa coefficient (k=0.02). Conclusion: We confirmed the differences among safety information provided by four different countries. 'Contraindicated' was more likely in Korea compared with other countries.

• 디지털산업정보학회논문지
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• 제5권3호
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• pp.87-98
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• 2009

This paper discuss secure information flow analysis and its visualization. Information leak is defined as existence of information flow from variables which have user's private informations to variables that anyone can access. Secure information flow analysis has been made to decide of whether the information leak is or not. There are many researches for secure information flow analysis concerning high level programming languages. But actually, programs that user executes don't have program source code represented in high level programming language. Thus there is need for analysis of program represented in low level language. More to analysis, visualization of analysis is very important. So, this paper discuss visualization of secure information flow analysis. In this paper, Mini x86 Assembly Language which is subset of x86 assembly language is defined and secure information flow analysis of program is proposed. In addition, this paper defines transfer function that is used for analysis and shows how to visualize control flow graph.

• 아동학회지
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• 제32권5호
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• pp.151-165
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• 2011

The purpose of this study was to examine the relationship between the information literacy of preschoolers and their developmental trends. The subjects in this study were 122 preschoolers. After taking tests in information literacy and early childhood development, the collected data was analyzed. The findings of the study were as follows : First, there were gaps among the preschoolers in the level of early childhood development according to the relative levels of their information literacy. When a post-hoc analysis was carried out to investigate intergroup differences in detail, there were statistically significant gaps between the preschoolers with excellent information literacy and those with intermediate-or poor information literacy, and between the preschoolers with intermediate information literacy and those with poor information literacy. Second, the differences in terms of the levels of information literacy and the impact these differences made to their body, cognition, language, sociability and emotions which comprise the five subfactors of the early childhood development inventory were checked after the mutual influence of the five subfactors was controlled. As a result, statistically significant gaps were apparent in all the subfactors of early childhood development according to relative levels of information literacy. The preschoolers who had a better level of information literacy exhibited a statistically significantly better level of development in every subfactor.

• 한국도서관정보학회지
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• 제41권3호
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• pp.391-419
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• 2010

이 연구는 이주노동자를 대상으로 정보리터러시(information literacy)의 수준이 높은 집단과 그렇지 않는 집단을 비교분석하여 정보리터러시 격차(information literacy gap)를 야기하는 요인을 규명하는데 목적을 둔다. 이러한 목적을 달성하고자, 이주노동자와 NGO 실무자에 대한 심층인터뷰를 통해 정보리터러시 격차를 야기하는 다양한 요인들의 작용을 발견하였다. 조사 결과, 이주노동자의 정보리터러시 격차는 연령, 결혼여부, 직업에 영향을 받을 뿐 아니라, 한국어교육 및 정보활용교육의 차이, 정보기술에 대한 적응력, 사회활동에 대한 적극성, 사회연결망 등의 개인적 차이와 함께 기술적 경제적 사회적 정책적 요인이 복합적으로 작용해서 발생하는 것으로 나타났다. 이렇게 다차원적이고 복합적인 문제를 해결하기 위해서는 다문화정보서비스를 위한 거버넌스를 구축할 필요가 있다.

• 한국멀티미디어학회논문지
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• 제21권12호
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• pp.1425-1430
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• 2018

In this paper, we propose a CNN based deep learning algorithm for semantic segmentation of images. In order to improve the accuracy of semantic segmentation, we combined pixel level object classification and image level object classification. The image level object classification is used to accurately detect the characteristics of an image, and the pixel level object classification is used to indicate which object area is included in each pixel. The proposed network structure consists of three parts in total. A part for extracting the features of the image, a part for outputting the final result in the resolution size of the original image, and a part for performing the image level object classification. Loss functions exist for image level and pixel level classification, respectively. Image-level object classification uses KL-Divergence and pixel level object classification uses cross-entropy. In addition, it combines the layer of the resolution of the network extracting the features and the network of the resolution to secure the position information of the lost feature and the information of the boundary of the object due to the pooling operation.