• School Mathematics
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• v.5 no.1
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• pp.43-58
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• 2003

This study intends to compare the structure of contents and the way of developing concepts in mathematics textbooks of south and those of north Korea. After thorough investigations of the textbooks from south and north Korea, the following three characteristics were identified. First, the mathematics textbooks of south Korea tends to spread out contents across several grades, while those of north Korea have a tendency of centralization in terms of locating contents Second, in the textbooks of South Korea, mathematics concepts are permeated through real world situations, and students gradually acquire those concepts mostly through activities. This is different from the approach of the north Korean textbooks in which various problems play a key role in explaining concepts. Third, the main strategy of introducing contents in the textbooks of south and that of north Korea corresponds to 'guidance' and 'explanation' respectively. Exploratory questions leading to the concepts are more emphasized in the textbooks of south Korea, on the other hand, meaningful explanations play an important role in the textbooks of north Korea.

• The Journal of the Korea Contents Association
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• v.16 no.6
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• pp.123-134
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• 2016

As the internet of things has come into the spotlight, wearable devices have been emerging as a new and growing market and the next hot thing in the world. However, wearable device growth in the market has not met expectations. For continued growth and diffusion of wearable devices, it is important to investigate user resistance factors to them. This study gives attention to people who have resistance to wearable devices' tendency towards innovative uses. Specifically, this study is intended to find out which factors influence consumers' resistance and intention to use wrist-worn wearable devices, which are in high demand among wearable device. Results of the study show that the relative advantage, innovation expectation, complexity, financial risk and physical risk are the predictors of innovation resistance on wrist-worn wearable devices. And consumers' resistance affects the intention of positive acceptance. These findings confirm the importance of consumer resistance to the wrist-worn wearable device.

• Journal of Korean Library and Information Science Society
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• v.40 no.1
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• pp.451-469
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• 2009

This paper analyzed four large scale studies on the impact of school libraries on students' learning. It identifies how students benefit from their school libraries and how the libraries contribute to the educational goals of the schools. The four studies were the 'National Power' project study, the Scotland study, the Ohio study, and the Delaware study. These studies developed frameworks for evaluating the impact of school libraries on learning, which give insights on how educational objectives and experiences are related with each other and what indicators are available to measure their impact on learning. Basing on Bloom's Taxonomy of educational objectives and Kuhlthau's model of information search process, the educational objectives of the frameworks included cognitive, affective, and psychomotor/physical domain, plus interpersonal domain. The four studies used such research methods as case studies, observations, interviews, focus group discussions, log data analyses in order to identify various learning experiences and impacts.

• Proceedings of the Korea Contents Association Conference
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• 2003.05a
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• pp.74-87
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• 2003

A model of STS (Science-Technology-Society) creativity education program for the gifted and talented children has been developed, based on GENEPLORE thinking process and Knowledge development theory. The GENEPLORE creative thinking process, developed by Finke et al. (1990, 1992), has two phases such as generative phase and exploratory phase. And The knowledge development theories of Piaget (1977) and Gallagher(1981) assume that knowledge-bases are developed on the basis of empirical as well as reflective abstraction, which could imply that knowledge-bases are crucial in creative thinking process. The creativity education model for the gifted and talented of the present study attempted to integrate 'the individual, creative thinking process, and social/scientific technology' by employing topics of the science-technology-society such as computer, network, biotech, robot, e-business, e-education, e-health, nanotech and entertainment and the structure and contents of the program are proposed

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.6
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• pp.1175-1184
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• 2015

A depth map is an image which contains 3D distance information. Generally, it is difficult to acquire a high resolution (HD), noise-removed, good quality depth map directly from the camera. Therefore, many researches have been focused on acquisition of the high resolution and the good quality depth map by up-sampling and pre/post image processing of the low resolution depth map. However, many researches are lack of effective up-sampling for the edge region which has huge impact on image perceptual-quality. In this paper, we propose an up-sampling method, based on joint bilateral filter, which improves up-sampling of the edge region and visual quality of synthetic images by adopting different weights for the edge parts that is sensitive to human perception characteristics. The proposed method has gains in terms of PSNR and subjective video quality compared to previous researches.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37A no.11
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• pp.918-926
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• 2012

In 3D video transmission, a depth map being used for depth image based rendering (DIBR) is generally compressed by reducing resolution for coding efficiency. Errors in resolution reduction are recovered by an appropriate up-sampling method after decoding. However, most previous works only focus on up-sampling techniques to reduce errors. In this paper, we propose a novel down-sampling technique of depth map that applies different down-sampling rates on moving objects and background in order to enhance human perceptual quality. Experimental results demonstrate that the proposed scheme provides both higher visual quality and peak signal-to-noise ratio (PSNR). Also, our method is compatible with other up-sampling techniques.

• Journal of Korean Society of Archives and Records Management
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• v.15 no.3
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• pp.87-114
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• 2015

The Presidential Archives collects and manages both the presidential records and historical archives related to the president which it subsequent provides to the people. Regardless of these special duties that meet the people's right to know, its awareness and study on the Presidential Archives has not been thoroughly satisfied. It is time to focus on providing service to share and utilize records and archives, as well as for preservation and management purposes. Therefore, this study proposes exhibition methods through storytelling, which is well-known, as it pursues the importance of developing various services for a more efficient usage and promotion of the Presidential Archives. This helps raise awareness about the Presidential Archives, attract group visits of children, and provides a good example for collecting archives and planing exhibitions.

• Korean journal of communication and information
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• v.37
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• pp.100-138
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• 2007

The purpose of this paper is to consider how the Korean major broadcasts employs their broadcasting human resources and makes use of them in connection with broadcasting education as media education in universities. The problems deals with broadcasting education in universities, particularly with regard to the point of broadcasts view, with the training & reeducation systems and with the academic-industrial cooperation. By using depth interview with experts(directors of personnel management of the broadcasts), this paper explores meaning of media education for the training of broadcasting human resources. In the opinions of the responsible officers for personnel management, it distinctly exists different points of view between the related academic circle and the broadcasting on-site. The related academic circle criticizes the chronic invariability of broadcasts, and the broadcasts the impractical broadcasting education of the academic circle.

• Journal of The Korean Association of Information Education
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• v.2 no.2
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• pp.278-285
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• 1998

Computer users frequently request large scale multimedia data such as images. voice, video rather than conventional formal data. Data in virtual fossil museum are represented as points, shape, location in multidimensional space and interrelation with other spatial object. Informations in virtual fossil museum should be maintained to manipulate spatial object and non-spatial object. In this report we propose virtual fossil museum which is consisted of two parts. In the first step, basic system is implemented in internet for non-specialist such as primary students. This system is implemented based on visual multimedia information system so that non-specialist about computer can access easily. In the second step, expert system is designed which allows computer users can store, magnify, reduce, and retrieve the spatial data. This expert system uses animation, spatial query and VRML.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.5
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• pp.137-151
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• 2014

This paper proposes a method of detecting object of interest(OOI) in general natural images. OOI is subjectively estimated by human in images. The vision of human, in general, might focus on OOI. As the first step for automatic detection of OOI, candidate regions of OOI are detected by using a saliency map based on the human visual perception. A saliency map locates an approximate OOI, but there is a problem that they are not accurately segmented. In order to address this problem, in the second step, an exact object region is automatically detected by combining graph-based image segmentation and skeletonization. In this paper, we calculate the precision, recall and accuracy to compare the performance of the proposed method to existing methods. In experimental results, the proposed method has achieved better performance than existing methods by reducing the problems such as under detection and over detection.