• 한국과학교육학회지
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• 제35권5호
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• pp.885-893
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• 2015

본 연구에서는 국제 교육성취도 평가협회가 시행한 ICILS 2013의 교사 설문 자료를 활용하여 우리나라 중학교 과학 교사의 ICT 활용 실태를 다른 나라와 비교하였다. ICILS 2013은 중학교 2학년을 대상으로 하고 있으며, 18개 참여국 중 컴퓨터 정보 소양 점수가 높은 호주, 체코, 노르웨이, 폴란드와 우리나라 과학 교사들의 ICT 활용 실태를 비교하였다. 본 연구에서는 ICILS 2013의 교사 설문지 중에서 과학 교사의 ICT 활용 실태를 분석할 수 있는 9문항을 선택하였는데, 문항들은 교사의 컴퓨터 이용 실태, 수업에서 ICT 활용 현황, 학교의 ICT 활용 지원 환경의 범주로 나누어 분석되었다. 우리나라 중학교 과학 교사의 컴퓨터 사용 실태를 보면, 컴퓨터를 비교적 많이 사용하며 컴퓨터에 대한 자아효능감도 다른 나라에 비해 높은 편이었다. 그러나 일반적인 컴퓨터 활용은 잘한다고 응답한 비율이 높지만 교수학습과 관련된 컴퓨터 활용에서는 낮은 자신감을 나타내었다. 수업에서 활용에서도 비교적 다양한 응용프로그램을 사용하지만 프레젠테이션이나 그래픽 소프트웨어에 대한 활용의 비중이 높은 편이고 학습활동이나 교수활동에서도 교사주도의 정보 제공이나 과제 제시에 대한 활동의 비중은 높지만 협업이나 상호작용이 많은 활동에서는 낮은 응답을 나타내었다. 또한 우리나라 과학 교사들은 ICT 활용하는 것에 대해서 긍정적인 관점보다는 부정적인 관점을 많이 가지고 있었다. 학교에서 컴퓨터 관련 자원을 지원하는 정도는 지원이 부족하다고 응답하는 경우가 많았으며 조사 항목 대부분에서 호주나 체코에 비해 지원 정도가 낮다고 응답하였다. 또한 충분한 ICT 기기나 컴퓨터가 구식 모델이고 디지털 학습 자료가 부족하다고 응답하였다. 여기서 드러나 문제점을 개선하기 위해서는 ICT 교육 인프라에 대한 지속적인 지원과 더불어 학생활동 중심의 ICT 교수학습 방법에 대한 개발과 보급이 필요할 것으로 보인다.

• 센서학회지
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• 제23권3호
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• pp.149-157
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• 2014

This paper considers the ability of counting and positioning multi-targets by using a mobile UWB radar device. After a background subtraction process, distinguishing between clutters and human body signals, the position of targets will be computed using weighted Gaussian mixture methods. While computer vision offers many advantages, it has limited performance in poor visibility conditions (e.g., at night, haze, fog or smoke). UWB radar can provide a complementary technology for detecting and tracking humans, particularly in poor visibility or through-wall conditions. As we know, for 2D measurement, one method is the use of at least two receiver antennas. Another method is the use of one mobile radar receiver. This paper tried to investigate the position detection of the stationary human body using the movement of one UWB radar module.

• Journal of Information Technology Applications and Management
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• 제21권3호
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• pp.79-96
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• 2014

In Kenya during the last one decade, public and private sectors have invested a lot of resources in computer based Information and Communication Technologies (ICT) to improve the quality of education in schools. The main objective has been to integrate ICT in the delivery of curriculum in order to improve the quality of teaching-learning and to produce ICT literate workforce. The computer based technologies are used in management, pedagogy, and communication. This paper presents results from a study that was conducted in Nairobi County in Kenya to determine the key factors in the integration of computer based ICT in teaching-learning in pre-primary and lower primary schools. Results had revealed that the use of computer based ICT in teaching-learning by both pre-primary and lower primary schools was influenced by accessibility of resources, capacity to use the technology, availability of time, and provision of technical support.

• Journal of Information Processing Systems
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• 제17권1호
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• pp.1-13
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• 2021

In this research, we study the problem of font image skeletonization using an end-to-end deep adversarial network, in contrast with the state-of-the-art methods that use mathematical algorithms. Several studies have been concerned with skeletonization, but a few have utilized deep learning. Further, no study has considered generative models based on deep neural networks for font character skeletonization, which are more delicate than natural objects. In this work, we take a step closer to producing realistic synthesized skeletons of font characters. We consider using an end-to-end deep adversarial network, SkelGAN, for font-image skeletonization, in contrast with the state-of-the-art methods that use mathematical algorithms. The proposed skeleton generator is proved superior to all well-known mathematical skeletonization methods in terms of character structure, including delicate strokes, serifs, and even special styles. Experimental results also demonstrate the dominance of our method against the state-of-the-art supervised image-to-image translation method in font character skeletonization task.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2005년도 가을 학술발표논문집 Vol.32 No.2 (1)
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• pp.973-975
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• 2005

With the continuous growth of e-commerce there is a huge amount of products information available online. Shop managers expect to apply information techniques to increase profit and perfect service. Hence many e-commerce systems use association rule mining to further refine their management. However previous association rule algorithms have two limitations. Firstly, they only use the number to weight item's essentiality and ignore essentiality of item profit. Secondly, they did not consider the relationship between number and profit of item when they do mining. We address a novel algorithm, profit-based association rule algorithm that uses profit-based technique to generate 1-itemsets and the multiple minimum supports mining technique to generate N-items large itemsets.

• 디지털산업정보학회논문지
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• 제10권2호
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• pp.173-186
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• 2014

There are a variety of alternative products in the computer markets. A tablet PC, which is a small type of computer, is expanding its market share as an independent type of computer products. The purpose of this study is to find out what the factors are that led to the success of the tablet PC. A research study was carried out on the intention to use of tablet PCs by consumers. The factors that affect the intention to use of tablet PCs users were structured on the basis of attitude theory. According to the one-dimensional theory of attitude, cognitive factors affect the affective factors, which in turn affect conative factors. In the study, the relations between each dimension were set up. The hypothesis was tested by structural equation modeling. The test results are as follows. First, the values and satisfaction that the owners of tablet PCs feel from the products and the positive comments on the products from their nearby acquaintances affect in a positive way how much they like their products. Second, the products surrounding the tablet PCs did not affect the intention to use of the products. Third, the product favorability that the owners of tablet PCs feel affects the intention to use in a meaningful way. The results of the research also show that hi-tech products such as tablet PCs affect their attitude after they buy and use the products. This attitude affects intention to use of the products. The managers of companies that produce hi-tech products should consider the cognitive and affective aspects of the product owners when manufacturing and marketing products.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2002년도 춘계학술발표논문집 (하)
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• pp.1289-1292
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• 2002

The number of connected computers in the Internet, which has reached a state in which its address space is becoming insufficient is exponentially increased. Also nowadays modern Laptops and Mobile terminal are being used more and more. As hewn, the number of available IPv4 address is limited and many organizations have limited budget to use the global address. So the way to overcome such problems is using private addresses in their networks. In addition, the use of private address makes the system more secure. Moreover, we have considered about supporting of the scalability of data forwarding processes of nodes in their network especially Mobile IP data communication. Thus, we propose the integration of MPLS and Mobile IP network. Also we propose the security services of a constrained LSP for the MPLS payloads.

• 한국컴퓨터그래픽스학회논문지
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• 제29권3호
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• pp.45-57
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• 2023

Unity is a powerful game engine that can be used to create 2D or 3D content. The current study focuses on the use of Unity for 3D computer animations, covering the strengths, basic concepts and tools for creating and integrating 3D animations in Unity, including the use of keyframe animation, animation controllers, and blend trees. Also covering advanced topics such as skeletal animation, procedural animation and their applications in games, simulations, and other interactive media. Case studies that showcase the potential of Unity for 3D animation will be analyzed and discussed taking in the quality of visuals and the receptance by the public in general.

• ETRI Journal
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• 제25권2호
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• pp.121-132
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• 2003

To enhance the productivity of software development and accelerate time to market, software developers have recently paid more attention to a component-based development (CBD) approach due to the benefits of component reuse. Among CBD processes, the identification of reusable components is a key but difficult process. Currently, component identification depends mainly on the intuition and experience of domain experts. In addition, there are few systematic methods or tools for component identification that enable domain experts to identify reusable components. This paper presents a systematic method and its tool called a component identifier that identifies software components by using object-oriented domain information, namely, use case models, domain object models, and sequence diagrams. To illustrate our method, we use the component identifier to identify candidates of reusable components from the object-oriented domain models of a banking system. The component identifier enables domain experts to easily identify reusable components by assisting and automating identification processes in an earlier development phase.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2009년도 춘계 종합학술대회 논문집
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• pp.693-698
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• 2009

컴퓨터 시스템을 중단 없이 정상적으로 동작 시키는 것은 중요한 문제 중의 하나이다. 이와 같이 컴퓨터 시스템이 중단 없이 동작하도록 하기 위하여 여러 가지 고장 감내 기법들이 개발 및 상용화되어 사용되고 있다. 대부분의 고장 감내 기법은 많은 경비가 소요된다. 본 논문은 리눅스 운영체제에서 동적 모듈(DLM)을 이용하여 USB 디바이스를 연결할 경우 USB 디바이스 사용에 대해 발생할 수 있는 커널 PANIC 현상을 줄이는 커널 하드닝 기법에 대해서 연구 한다.