• Journal of The Korean Association of Information Education
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• v.16 no.4
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• pp.439-450
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• 2012

This paper explores effectiveness of integrating Problem-Based Learning with Web 2.0 technologies in Computer subject matter education for improving quality of lessons and adapting of social needs for pre-service teachers. Students have studied about computer subject matter for 4 times. The process of leaning have recorded by Web 2.0 tools that is one of the cloud services. Also the students have written reflection journals about experiences of PBL process and results. The PBL process and reflection journals have been analyzed by qualitative data analysis. Conclusions are drawn as to potential for the use of Web 2.0 tools for PBL in computer subject matter. The results of the analyses showed the following: 1) Increasing the understanding of the computer subject matter education, 2) enhancing students' competence in using ICT potentially, 3) cultivating teaching and learning strategies on Web 2.0 environment and 4) enhancing competence of future teaching activities through experiencing e-portfolio as a performance-assessment tool.

• Journal of The Korean Association of Information Education
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• v.13 no.4
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• pp.461-470
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• 2009

Even though the revised operational guide for ICT education emphasizes the basic concepts of computer science, many primary and secondary schools do not deal with the changed requirements properly. Also, it is doubtful if the education considers teaching period and the levels of students or not. In this paper, we survey on the state of ICT education, the relationship between ICT education and Computer Education, and the connectivity in Computer Education between primary and secondary schools. In order to do these, we analyze the result of our questionnaire and we propose an improved method for the connectivity in Computer Education. The results are (i) primary school teachers don't consider the connectivity of Computer Education and (ii) the teachers who have higher satisfaction levels of ICT education think ICT education and Computer Education between two schools are correlated and connected. As a result, new policies to re-educate teachers are required.

• Journal of KIISE:Information Networking
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• v.36 no.3
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• pp.198-203
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• 2009

With the growing demand for multimedia services and advances in display technology, new applications for 3$\sim$D scene communication have emerged. While multi-view video of these emerging applications may provide users with more realistic scene experience, drastic increase in the bandwidth is a major problem to solve. In this paper, we propose a fast prediction mode decision algorithm which can significantly reduce complexity and time consumption of the encoding process. This is based on the object segmentation, which can effectively identify the fast moving foreground object. As the foreground object with fast motion is more likely to be encoded in the view directional prediction mode, we can properly limit the motion compensated coding for a case in point. As a result, time savings of the proposed algorithm was up to average 45% without much loss in the quality of the image sequence.

• Journal of Korean Library and Information Science Society
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• v.40 no.3
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• pp.271-293
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• 2009

A Records manager and archivist should have the academic knowledge and working ability due to the working character. Archives and records centers are being changed with developing information technology so that they are requiring a records manager and archivist to have a professional working ability through a variety of practice. However, in recent, the curriculum of Korean archival graduate schools focuses on a theoretical field and neglects to apply a theory to a working field. Therefore, in this paper, the writer compares some elements to improve the working ability shown in the curriculum of Korean and American archival graduate programs, and suggests the method to cultivate a theoretical knowledge as well as working ability. The cultivating ways the writer suggests are as follows: To improve the working ability in a practical field of the curriculum of archival graduate school in Korea, the writer suggests -- 1. increasing the grades of major field and college courses, and changing the practice subject to an obligatory subject, and 2. developing an internship program for a full practice with company, government, and college, and 3. operating a continuous training program that an records manager engaging in records center and archives can acquire a new knowledge and technology and apply the professionalism to a working field.

• 한국정보교육학회:학술대회논문집
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• 2007.08a
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• pp.45-50
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• 2007

최근 과학기술의 발달에 따른 컴퓨터 산업의 대중화로 각 가정마다 컴퓨터 1대씩은 필수로 보유하고 있다. 이러한 추세에 따라 초등학교 교육과정에도 재량활동으로 ICT 교육을 체계 있게 실시할 수 있도록 하고 있다. 하지만 컴퓨터를 가지고 정보를 활용하는 순기능을 잃어버리고 역기능이 학습지도와 생활지도의 문제로 등장했으며 컴퓨터 게임으로 인해 수많은 부정적인 영향을 끼치는 것으로 나타났다. 본 연구에서는 전국 여러 곳에서 초등학교의 고학년 학생들의 자료를 수집한 다음 이것을 특별시 광역시지역, 중 소도시지역, 읍 면지역으로 구분한 후 학생들의 컴퓨터 게임 사용 실태를 알아보고, 컴퓨터 게임 중독 측정도구를 사용하여 컴퓨터 게임 중독의 유무를 파악하며, 컴퓨터 게임 중독에 영향을 미치는 여러 요인들을 찾아보았다. 중독이 되는 요인으로는 남학생일수록, 학교 성적이 낮을수록, 게임 사용 경력이 오랠수록, 게임 사용 빈도가 높을수록, 게임 사용 시간이 많을수록, 공격성과 충동성이 높을수록, 자기통제가 안 될수록, 부모로부터 존중을 받지 못할수록, 공부스트레스가 많을수록, 대인불안이 높을수록, 친구 따라서 게임할수록 중독이 잘되는 것으로 나타났다. 소속감과 재미와 성취감이 관련이 높은 것으로 나타났다. 중독의 실태 및 요인을 알아 본 바에 따르면, 컴퓨터 중독을 비방하는 가장 큰 방법은 가정에서 부모가 자녀를 존중해주고, 바른 인성을 길러 공격성과 충동성이 높지 않고, 게임을 많이 좋아하지 않는 친구를 사귀는 것이 중요하다고 하겠다. 그리하여 가정과 학교와 사회가 올바로 역할을 수행한다면 정보화의 역기능인 컴퓨터 중독을 예방하고 정보 활용의 본래의 기능을 되살릴 수 있으리라 본다.

• Journal of the Korea Computer Industry Society
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• v.4 no.4
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• pp.509-516
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• 2003

Smaller enterprises begin on practical use to form integrated informational system on the inside of company according to development of internet and information techniques. The past days, it was managed mainly information system for the inside of enterprise, but in the present time, e-business between enterprise and enterprise, enterprise and customer, country and enterprise, ERP system, etc are activated. To construct the integrated informationalized system, smaller enterprices use the informational process strategy methods to analyze and evaluate the level of enterprise, construct the information infra and informationalized system. In this paper, 1 introduce the informationalized process strategy method about implimentation of the integrated informationalized system for smaller enterprice, do the modelling for one smaller enterprice by proposed method.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.05a
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• pp.85-88
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• 2005

유비쿼터스 컴퓨팅 환경에서 분산되어 존재하는 서비스나 디바이스의 효과적인 사용을 위해서는 서비스의 종류나 서비스의 위치 등의 기본적인 정보가 사전에 제공되어야 한다. 이러한 기본 정보를 사용자의 요구에 맞게 정확히 탐색해서 찾아주는 일련의 과정을 서비스 디스커버리(Service Discovery)라 칭하며, 유비쿼터스 같은 분산 이동 환경에서 가장 먼저 구축되어야만 하는 시스템이다. 최근에는 발달된 에이전트 기술을 서비스 디스커버리와 접목시켜 분산되어 있는 서비스와 디바이스 그리고 사용자까지 효율적이고 유용성 있게 관리하는 추세이다. 각국의 기업이나 학교에서 수 많은 에이전트 플랫폼이 개발되어 왔지만, 각기 다른 개발 기준의 적용으로 인하여 에이전트 플랫폼 간의 상호운용(Interoperability)에 어려움이 존재한다. FIPA 에서는 이종 에이전트 플랫폼 간의 제공 서비스 상호운용을 위해서 디스커버리 미들웨어(Discovery Middleware) 모듈을 제안하였다. 본 논문에서는 FIPA-OS 와 JADE 그리고 SLP 플랫폼 들이 서로의 서비스를 공유할 수 있도록, FIPA 에서 제안한 디스커버리 미들웨어를 실질적으로 개발하여 상호간의 서비스 디스커버리가 이루어질 수 있도록 하였다.

• Journal of Internet Computing and Services
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• v.3 no.5
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• pp.51-62
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• 2002

The development of computer technology and the advancement of the technology of information and communications spread the technology of multimedia and increased the use of multimedia data with large capacity, Users can grasp the overall video data and they are able to play wanted video back. To grasp the overall video data it is necessary to offer the list of summarized video data information, In order to search video efficiently on index process of video data is essential and it is also indispensable skill, Therefore, this thesis suggested the effective method about the cut detection of frames which will become a basis of an index based on contents of video image data. This suggested method was detected as the unchanging pixel color intelligence value, classified into diagonal direction. Pixel value of color detected in each frame of video data is stored as A(i, j) matrix-i is the number of frames. j is an image height of frame. By using the stored pixel value as the method of sum of squared difference of color two frames I calculated a specified value difference between frames and detected cut quickly and exactly in case it is bigger than threshold value set in advance, To carry out on experiment on the cut detection of frames comprehensively, I experimented on many kinds of video. analyzing and comparing efficiency of the cut detection system.

• Journal of Intelligence and Information Systems
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• v.10 no.1
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• pp.47-63
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• 2004

Today, there are several markets in cyber space where companies trade electronically due to the development of Information Technology. On the other hand, the most important thing in trades is negotiation. So, in order to support current business practices as well as new ones on the Internet, electronic commerce systems need an ability to negotiate. In this paper, proposed is a method by which a seller can be supported by an agent which plays a role in negotiation process among small and medium companies especially injection mold manufacturer. If the manufacturing capacity cannot afford to produce all orders, the manufacturer may want to extend due dates and the buyers may want to discount prices. The negotiation agent discussed in this paper cooperates with the schedule agent to get due-date information, and performs a role in one (seller)-to-many (buyer) negotiation processes.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.4
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• pp.519-525
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• 2022

The face detection task of detecting a person's face in an image is used as a preprocess or core process in various image processing-based applications. The neural network models, which have recently been performing well with the development of deep learning, are dependent on 2D images, so if noise occurs in the image, such as poor camera quality or pool focus of the face, the face may not be detected properly. In this paper, we propose a face detection method that uses depth information together to reduce the dependence of 2D images. The proposed model was trained after generating and preprocessing depth information in advance using face detection dataset, and as a result, it was confirmed that the FRN model was 89.16%, which was about 1.2% better than the RetinaNet model, which showed 87.95%.