• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2007년도 춘계학술발표대회
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• pp.847-848
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• 2007

In this work, we analyze the role of reputation in ubiquitous healthcare system as well as the relationship of security, trust and reputation in this environment in details. In addition, an example is given to show how to use reputation system in ubiquitous healthcare and how to use reputation system on decision making.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제5권1호
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• pp.13-24
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• 2001

Using computer technology in teaching school mathematics creates new instructional environments. The emphases on the use of computer technology in the classrooms and in particular the use of computer-based exploration as a context of mathematics instruction have been reflected in the recommendation of the NCTM (Curriculum and Evaluation Standards for School Mathematics, 1989). Although the power of using computer technology in the exploration of mathematical problems has been recognized and stressed by many educators, we do not have many research studies on mathematics in computer-based explorations. Especially research has failed to clarify how computer technology can contribute to the construction of procedural and conceptual knowledge of mathematics. Up to now most researches on procedural and conceptual knowledge in computer environments have only focused on classifying programming languages which program language has more random access and rich interrelationship characteristic in relation to conceptual knowledge in humans, and which computer language has more characteristic flavor of procedural knowledge. How computer-based explorations affect the knowledge construction of mathematics, therefore, emerges as an issue of research on teacher education program for theoretical framework. This situation leads to do research on the effectiveness of using computer explorations in pre-service teacher education in terms of procedural and conceptual knowledge construction.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2000년도 7월 학술대회지
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• pp.241-254
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• 2000

The past decade has witnessed the abundant use of computer in testing language skills such as listening and reading. Compared with these language skills, we have experienced little use of computer in testing a speaking skill including pronunciation. This is largely due to limitations of the current computer technology. One of such limitations for testing pronunciation is to store and automatically evaluate what the learner utters. Due to this limitation, the computer simply stores what the learner utters and raters evaluate it afterward on a certain rating continuum. With the advent of voice recognition technology, however, the computer has been able to test pronunciation in a systematic way. This technology enables the computer to identify, visually show, and evaluate the learner's intonation pattern by means of autocorrection. The evaluation is expressed in terms of the degree in which the learner's intonation pattern overlaps with that of the native speaker of the target language. In particular, the degree is numerically displayed on the screen, and this numeral is considered as the score of the learner's utterance under our testing framework.

• International Journal of Computer Science & Network Security
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• 제21권11호
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• pp.181-188
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• 2021

The use of the internet has become a basic need for many across the globe. The situation is very much the same for the youth in many countries like Saudi Arabia who have grown up surrounded and accessing the internet. This demographic, however, is at an increased risk of falling as victims to cybercrime because of a low level of technical awareness. This review looks at the level of technical awareness of internet use in 3 different countries which include the USA, South Africa, and New Zealand. The review will compare the situation in these nations with those in KSA. Based on the review and comparisons, recommendations are made for culturally and socially acceptable e-Safety awareness of Saudi youths.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.1023-1024
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• 2006

The present study purposed to design a system that enables the selection and the operation of OPC systems actively while allowing the use of legacy systems as they are. In addition, this study will design a standardized structure of information collected when using OPC protocol and, for this, use not only OPC-DA but also OPC-XMLDA to integrate data.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1985년도 하계학술회의논문집
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• pp.257-261
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• 1985

This paper deals with the personal computer based design for the sequential machines. Most part of sequential machine design have been implemented by using general purpose microprocessors in order to obtain the specific unctions required for their system. But, they have some difficulties in design stages. Knowledge of systems design method and high technology are basically applied to all the design stages.. Therefore ready made microcomputer system for personal use, personal computer, can be transformed to sequential machines by using the corresponding softwares and built-in personal computer input/output ports. Following the state transition diagram or table, we can obtain the ROM type of sequential machines directly and need not to design input/output interface except actuators and samplers because of capability of personal computer. Our main purpose of this design method are quick, flexible, reliable, modifiable circuit design of the sequential machines. In this paper, we use APPLE-II plus personal computer as target machine.

• 한국컴퓨터산업학회논문지
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• 제4권12호
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• pp.1021-1032
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• 2003

현재까지 컴퓨터 게임에 관한 연구들은 컴퓨터 게임이 청소년에게 미치는 심리ㆍ정신ㆍ사회적 분야에 중점을 두어 컴퓨터 게임이 청소년 학습에 미치는 영향에 관해서는 실증적인 분석결과들을 거의 제시하지 않았다. 이에 본 논문은 컴퓨터 게임이 청소년 학습에 미치는 영향을 구체적으로 살펴보기 위하여 14세에서 19세까지 청소년 560명을 대상으로 컴퓨터 게임의 이용실태와 컴퓨터 게임으로 인해 학업에 받았던 성적하락, 수업방해 등과 관련한 경험의 유무를 알아보고 컴퓨터 게임이 학습에 어떠한 영향을 미치는지에 관하여 연구하였다. 이 외에도 본 논문에서는 청소년들이 컴퓨터 게임 이용실태와 게임이 학습에 미치는 영향에 대한 분석방법과 바람직한 컴퓨터 게임 이용방안을 제시하였다.

• International Journal of Computer Science & Network Security
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• 제21권9호
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• pp.99-102
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• 2021

The article considers one of the areas of development of artificial intelligence where there is the development of computer intelligent systems capable of performing functions traditionally considered intelligent - language comprehension, inference, use of accumulated knowledge, learning, pattern recognition, as well as learn and explain their decisions. It is found that informational intellectual systems are promising in their development. The article is devoted to intelligent information systems and technologies in educational activities, ie issues of organization, design, development and application of systems designed for information processing, which are based on the use of artificial intelligence methods.

• 한국컴퓨터정보학회논문지
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• 제16권5호
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• pp.147-152
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• 2011

본 연구는 스마트폰의 품질에 따른 스마트폰의 유용성과 이용 용이성 및 사용의도에 관한 연구를 통하여 스마트폰의 수용 결정과정에 미치는 영향들을 확인 및 검증했다. 이를 위해 기술수용모델(TAM)을 확장하여 이론모델을 제시하고, 설문조사를 실시하여 회귀분석을 실시하였다. 조사 분석결과 스마트폰의 품질은 유용성과 이용용이성에 유의한 영향을 미치며, 이들은 사용의도에 유의한 영향을 미치는 것으로 나타났다. 또, 스마트폰 사용자가 일반 휴대폰 사용자보다 품질 만족도가 높고, 계속사용의도가 높은 것으로 나타났다.

• Journal of Information Science Theory and Practice
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• 제11권1호
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• pp.1-13
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• 2023

This study determines how social media users (SMUs) verify the information they come across on the Internet. It determines SMUs' perception of online fact-checking services in terms of their ease of use, usefulness, and trust. By conducting a focus group discussion and key informant interviews, themes were derived in determining fact-checking practices while a survey was further conducted to determine such perceived ease of use, usefulness, and trust in fact-checking services. The thematic analysis revealed major information verification practices, such as cross-checking and verifying with other sources, inspecting comments and reactions, and confirming from personal and social networks. The results showed that SMUs considered fact-checking services easy to use. However, a concern was raised about their usefulness stemming from the delayed action in addressing the information issues that need to be verified. As to perceived trust, it was found that SMUs have reservations about fact-checking services. Finally, it is believed that fact-checking services are expected to be credible and need to be promoted to mitigate any form of fake news, particularly on social media platforms.