• Journal of Appropriate Technology
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• v.7 no.2
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• pp.172-187
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• 2021

In remote villages without access to modern IT technology, simple devices such as smartcards can be used to carry out business transactions. These devices typically store multiple business applications from multiple vendors. Although devices must prevent malicious or accidental security breaches among the applications, a secure communication channel between two applications from different vendors is often required. In this paper, first, we propose a method of establishing secure communication channels between applications in embedded operating systems that run on multi-applet smart cards. Second, we enforce the high assurance using an intransitive noninterference security policy. Thirdly, we formalize the method through the Z language and create the formal specification of the proposed secure system. Finally, we verify its correctness using Rushby's unwinding theorem.

• Proceedings of the IEEK Conference
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• 2003.07a
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• pp.105-108
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• 2003

Because of increasing the notebook computer and PDA, users' requirement with respect to mobility is growing more and more. However, current IP protocol is not changed IP address and can not deliver IP packets on new location of host in case moving another network. To solve this problem, the IETF has proposed mobile IP. The network management for maintaining stable and efficient environment is more difficult according to being various by complicated network environment and requirements of provided service and user. The recent rises concern about policy-based network technology. Therefore, this paper proposed a framework of policy-based network and developed policy scenarios using the presented policy language of mobile IP.

• Journal of the Korean Institute of Landscape Architecture
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• v.20 no.1
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• pp.18-28
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• 1992

A purpose of this study is to identify the concept formation and classify the diverse concepts which related to Kyoung(景) of Chio Nam-Sun at Korea under Japanese colonial rule (a turning point in the korean history). The cultural policy of th Japanese Government-General was aimed at the destruction of Korean nationalism and racial consciousness and the rapid Japanizatio of the Koreans. In the name of assimilation, Korean language instruction was first simply discouraged while the movement for the use of Japanese was stepped up, the use of the Japanese language was forced upon the Koreans, and textbook revision was carried out in order to develop Shinto nationalism and loyalty to the emperor and the state. The results were as follows; The type of landscape concept was 10 types and had the following frequencies in order; Pung-Kuoung(風景)(42), Kyoung-Chi(景致)(21), Koang-Kyoung(光景)(8), Kyoung-Sung(景勝)(7), Kyoung-Gae(景槪)(5), Kyoung-Goan(景觀)(2), Sung-Kyoung(勝景)(2), Kyoung(景)(2), Sil-Kyoung(實景)(1), Pung-Kyoung-Goan(風景觀)(1). Types of landscape concepts in critical periods were classified into 10 according to the many characteristics; personal situations, cultural policy and education policy of Japanese.

• Korean Educational Research Journal
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• v.43 no.1
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• pp.89-123
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• 2022

This research aimed to explore the nature of teachers' experiences of multicultural education in primary schools with ethnic diversity in the Republic of Korea and draw policy implications. For this study, the researchers interviewed 15 primary school teachers using semi-structured questionnaires in mine different schools. The participating teachers were in charge of the multicultural education in schools with ethnic diversity in two rural counties in the Republic of Korea. The analysis of the empirical data suggests that teachers stationed in ethnic diversity have not been trained for the diverse population nor multicultural education in general. In addition, they were struggling with the lack of teaching resources including textbooks for multicultural education, support for students and their parents in need of learning Korean as a foreign language, accurate data of those students etc. These teacher policy implications are suggested while discussing the findings; such as the importance of practical in-service training opportunities, quality teaching resources, Korean as Second Language(KSL) experts, and accurate data of students with ethnic diversity.

• Journal of Digital Convergence
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• v.10 no.9
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• pp.449-456
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• 2012

The college students who have relatively weak academic background feel more difficult in learning programming language grammars and programming skills in introductory course. At the end of semester, most of students had the negative attitude to programming and only a few students could write the programs for the given problems because they spent most of time to learn grammars instead of learning problem solving skills and logics. In this study, we propose to use Scratch in introductory programming course to help students to understand grammars and problem solving skills. It's necessary to educate first-time programmers how to solve the problems before they learn grammars of the programming language in their first programming language course. This paper shows that Scratch allows students not only to learn problem solving skills in programming but also to motivate students themselves in the class.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2003.10a
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• pp.67-82
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• 2003

. High potentiality of Digital broadcasting Industry . Low performance of digitalization policy ㆍSollen-Sein Gap makes a bad mood to the digital broadcasting industry . Fill up the gap with aggressive digital policy No stimuli, no move .But need understanding of throughput input isn't all. Digital is common language therefore all information market will be converged as soon as you can imagine

• Journal of Digital Convergence
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• v.17 no.10
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• pp.321-327
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• 2019

The purpose of this study is to develop a smart device-based Language Rehabilitation Program (LRP) to improve communication ability for the patients with language disability. The content of the LRP includes a variety of semantic categories and grammatical elements and consists of 17 semantic categories, 29 tasks and 3780 items to improve comprehension/production ability at word level, semantic category level, sentence level and discourse level. We developed LRP as a Windows-base management program and an Android-base language rehabilitation application. LRP was developed into an application for smart devices, providing real-time delivery of training contents, measurement and database of training task results, and patient progress and monitoring. A follow-up study will be conducted on the verification of the language rehabilitation effect using LRP by patients with language disability.

• Cross-Cultural Studies
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• v.51
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• pp.213-233
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• 2018

Representing the future of language is a very difficult but important issue, because it signifies a world of language different from the present; at the same time it secures the identity of the present language between the future changed language and the present one. This paper examines the linguistic world of dystopia, focusing on the "Fuji-no-shima" and "Gentoshi" of Yoko Tawada. First of all, "Fuji-no-shima" shows that, for Yoko Tawada, who was crossing the border between German and Japanese as a bilingual writer, the accidental Fukushima nuclear power generation in 2011 was accepted as the destruction of verbal order between signifiant and $signifi{\acute{e}}$, due to physical changes caused by radiation leaks. "Gentoshi" tells that human ties can be maintained through language activities that can capture multiple meanings, even in a world where traditional language order is destroyed through a policy of seclusion. From the above discussion, the novel Distopia, can actually be called Utopia as long as humans rely on the power of various languages to sustain it.

• International Journal of Computer Science & Network Security
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• v.21 no.9
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• pp.155-162
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• 2021

The expansion of the world wide web has led to a huge amount of user generated content over different forums and social media platforms, these rich data resources offer the opportunity to reflect, and track changing public sentiments and help to develop proactive reactions strategies for decision and policy makers. Analysis of public emotions and opinions towards events and sentimental trends can help to address unforeseen areas of public concerns. The need of developing systems to analyze these sentiments and the topics behind them has emerged tremendously. While most existing works reported in the literature have been carried out in English, this paper, in contrast, aims to review recent research works in Arabic language in the field of thematic sentiment analysis and which techniques they have utilized to accomplish this task. The findings show that the prevailing techniques in Arabic topic-based sentiment analysis are based on traditional approaches and machine learning methods. In addition, it has been found that considerably limited recent studies have utilized deep learning approaches to build high performance models.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.05a
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• pp.43-44
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• 2023

대화형 독해 튜터링 시스템을 위한 학생주도 대화 데이터셋 생성 및 확장에 ChatGPT 의 활용 가능성을 평가하였다. 단순히 수동으로만 구축한 기존의 데이터셋과 ChatGPT 에 의해 반자동으로 확장된 데이터셋을 비교한 결과, 구축량, 소요 시간, 비용 및 반복 작업 측면에서 ChatGPT 가 가진 유용성을 알 수 있었다. 그러나, 유형별 배분의 편중과, 부적절한 데이터 생성 등의 한계도 나타났다. Chat GPT 의 빠른 발전이 예상됨에 따라 대화형 튜터링 분야에 ChatGPT 에 의한 반자동 데이터 확장 방법이 널리 활용될 것으로 기대된다.