• Industrial Engineering and Management Systems
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• v.11 no.1
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• pp.123-132
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• 2012

Recently, global environmental problems have become serious due to human economic activities. Therefore, in order to build a sustainable society in which human economic activities coexist with nature, it is important to promote and enhance environmental education. As a preceding study, a board and computer game of "Ecopoly," which is the game for education on global environmental problems, were developed. This study further aims to develop algorithms which make decisions in Ecopoly, to automate decision-makings of opponents using the algorithms, and to develop the environmental educational game "Ecopoly V" which enables self-learning. In order to develop the algorithms, the board game of Ecopoly was played, and each player's decision-makings at the all points at which players make a decision were observed and analyzed. From the analyses, it became clear that the decision-makings were distinguished by 3 characteristics; Ecology type, Economy type, and Balance type. Based on the characteristics, the factors and standard values of each decision-making were made clear. Algorithms were developed based on the factors and standard values. Ecopoly V was developed by incorporating the algorithms into the computer game of Ecopoly. Experimental testing of the game was conducted and the validity of the game was verified.

• Journal of Multimedia Information System
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• v.6 no.3
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• pp.147-154
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• 2019

In a variety of fields, highly developed technology is being combined to create a lot of value. In order to keep up with this global trend, the Ministry of Education, which is in charge of national education, continuously develops and applies content for creative education to textbooks. The continuous development of content for creative education is not only related to national interests, but also to the continued development of mankind. Today, the succession and development of human knowledge is in charge of the education system. Research into an effective educational system is necessary for effective succession of rapidly developing science and technology and building up technical personnel with such skills. In particular, the computer science field is faster in development than other scientific fields and has accumulated many technologies, indicating that it takes a lot of time and good teaching to foster talent that can effectively utilize the technology. In this paper, elementary school subjects were analyzed to achieve the purpose of cultivating talent in the field of computer science. In addition, we have investigated techniques related to computer programming learning not covered in elementary school subjects. So we developed content that students need to practice. Next, we taught the content to randomly selected elementary school students and assessed their educational effectiveness. As a result of training using the content we developed, 55.37% increased academic performance.

• Proceedings of The KACE
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• 2018.08a
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• pp.171-174
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• 2018

정보교과는 컴퓨터과학적 지식과 기술의 탐구와 더불어 실생활의 문제 해결을 위해 새로운 지식과 기술을 창출하고 이를 통합적으로 적용하는 능력과 태도를 함양하는 교과이다. 2015 개정 교육과정에서 정보교과의 교과역량 중 하나가 협력적 문제해결력이다. 정보교육을 통하여 배울 수 있는 프로그래밍 분야에서 강조하는 역량 역시 협력이다. 본 연구는 정보교과의 관점에서 협력적 문제해결력 측정 방식을 깃허브, 스택오버플로우의 사례와 PISA, ATC21S의 평가사례를 비교하고자 한다. 협업을 통한 더 나은 결과물을 도출해내는 프로그래밍의 과정을 통하여 협력적 문제해결력을 살펴볼 수 있는 토대를 마련하는데 의의가 있다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.324-326
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• 2011

As development of education contents has become more active, it is not much that way to preserve copyright of S/W consuming contents. So this paper studied way to preserve copyright of S/W from MAC address of ethernet and hard disk volume serial number. This study realizes the simple but powerful security algorithm to preserve copyright. So this tightens to preserve copyright of S/W of education contents and will contributes to decrease damages because of using illegal S/W.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.4
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• pp.541-547
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• 2022

Realistic education using virtual reality compared to traditional learning can enhance students' understanding of knowledge through immersion and interaction. In previous studies, VR education is mainly focused on experiences, and it is difficult to find its applications for environmental education. Environmental issues are a global problem, and environmental education is essential for the future. In this research, we developed an immersive virtual reality-based environmental education simulation designed to help students recognize the importance of environmental education and participate in environmental-friendly actions. This simulation is based on the virtual ecosystem model, which maintains a casual relationship among environmental factors, spatio-temporal connection, and persistent state. Users intuitively recognize environmental problems and is motivated to solve the problem while experiencing the results of interaction related to environmental factors in virtual environment.

• Journal of Engineering Education Research
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• v.15 no.4
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• pp.58-65
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• 2012

The purpose of this study was to analyze the effects of accreditation on curriculum in Korean engineering education. To analyze the curriculum, bulletins of three colleges accredited programs and three colleges non-accredited programs from 2002 to 2010 were compared. The conclusions of this study are as follows. First, the accreditation for engineering education has a considerable influence on curriculum by strengthening the concentration areas, setting general education directions to fit engineering needs, and reinforcing major and MSC(math, science and computer) subjects. Secondly, the accreditation for engineering education causes significant changes in the educational objectives and contents. Lastly, it has an indirect influence on the curricula of non-accredited programs, such as increasing the number of MSC credits and accepting engineering design courses. Thus, the process of curriculum improvement is revealed in more global standardized engineering curricula.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.11
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• pp.2771-2778
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• 2014

In this paper, we propose an algorithm that select efficient relay nodes using information of network environment and nodes. The proposed algorithm can be used changeable weight factors as following network environment in node density. The routing protocols adopting store-carry-forward method are used for solving network problems occurred by unstable end-to-end connection in Delay Tolerant Networks(DTNs). Exiting DTN routing algorithms have problems that large latency and overhead because of deficiency of network informations. The proposed algorithm could be provide a solution this problems using changeable weight factor and prediction of network environment. Thus, selected relay nodes work efficiently in unstable and stressed network environment. Simulation results show that enhancement performance as overhead, delivery ratio, average latency compared to exiting DTN routing algorithm.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.2
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• pp.771-788
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• 2020

Detection of abandoned objects for smart video surveillance should be robust and accurate in various situations with low computational costs. This paper presents a new algorithm for abandoned object detection based on the dual background model. Through the template registration of a candidate stationary object and presence authentication methods presented in this paper, we can handle some complex cases such as occlusions, illumination changes, long-term abandonment, and owner's re-attendance as well as general detection of abandoned objects. The proposed algorithm also analyzes video frames at specific intervals rather than consecutive video frames to reduce the computational overhead. For performance evaluation, we experimented with the algorithm using the well-known PETS2006, ABODA datasets, and our video dataset in a live streaming environment, which shows that the proposed algorithm works well in various situations.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11b
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• pp.849-852
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• 2003

유비쿼터스의 한 분야인 센서 네트워크를 이용하여 병원에서 환자들의 신체상태를 점검하는 Health-Care 시스템을 제안, 구성하였다. 환자들의 상태를 판별하는 중요한 정보인 체온과 심박을 측정하기 위한 센서를 사용하였고 센서정보를 액세스 포인트를 이용하여 수집, 전송하여 병원의 관리자에게 환자들의 상태를 24시간 모니터링 한 수 있게 하여, 환자들의 이상발생시 보다 빠르고 효율적으로 대처할 수 있다.

• Journal of the Semiconductor & Display Technology
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• v.14 no.3
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• pp.37-43
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• 2015

In this paper, a new background subtraction algorithm for video based fence monitoring surveillance systems is proposed. We adopt the sampling based background subtraction technique and focus on the two main issues: handling highly dynamic environment and handling the flickering nature of pulse based IR (infrared) lamp. Natural scenes from fence monitoring system are usually composed of several dynamic entities such as swaying trees, moving water, waves and rain. To deal with such dynamic backgrounds, we utilize the confidence factor for each background value of the input image. For the flickering IR lamp, the original sampling based technique is extended to handle double background models. Experimental results revealed that our method works well in real fence monitoring surveillance systems.