• Journal of the Korea Institute of Information Security & Cryptology
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• v.13 no.2
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• pp.99-106
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• 2003

Intrusions pose a serious security risk in a network environment. For detecting the intrusion effectively, many researches have developed data mining framework for constructing intrusion detection modules. Traditional anomaly detection techniques focus on detecting anomalies in new data after training on normal data. To detect anomalous behavior, Precise normal Pattern is necessary. This training data is typically expensive to produce. For this, the understanding of the characteristics of data on network is inevitable. In this paper, we propose to use clustering and association rules as the basis for guiding anomaly detection. For applying entropy to filter noisy data, we present a technique for detecting anomalies without training on normal data. We present dynamic transaction for generating more effectively detection patterns.

• Ceramist
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• v.19 no.4
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• pp.74-79
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• 2016

창원대학교 스마트융합 메카트로닉스 인력양성 사업단의 교육 목표는 1) 창조적 교육과정을 통한 지역거점 특성화, 2) 세계적인 수준의 경쟁력을 갖춘 기술 인력 양성, 3) 분석력, 창의력, 적응력 및 설계능력을 갖춘 능동적 기술인력 양성, 4) 시대의 환경변화를 선도하는 진취적 기술인력 양성, 5) 인재공급 및 취업률향상으로 정하였다. 이를 달성하기 위한 교육전략은 1) Major전문성(메카트로닉스심화, 공통실험교육 강화), 2) Global국제적감각(팀기반능력, 근접학문이해능력), 3) Creative지속성장 (Capstone Design, 현장적응교육)으로 정하였다. 따라서 메카트로닉스공통융합심화트랙 교육과정으로 기계, 전기전자제어, 신소재분야의 공통트랙으로 이론 30학점, 실험 6학점(16과목, 36학점)을 신설하여 운영하였다. 수강지도를 통한 교차이수권장 학생들의 자율선택기반을 조성하고, 현장적응교육, 캡스톤 디자인 2과목 7학점을 수강하도록 하였다. 학생의 본인주도 학습권을 인정하여 2학년 진학 시 학생본인직접 100% 자기 전공 선택 기회 제공하는 구조조정을 실하고, 타 전공 관련정보 상호교류, 학문간 통합교육, 조직의 유연성확보가 가능하도록 하였다. 교과목(정규/비정규)개편을 통해 개선된 현장 실무 형 내실화 교육의 실시하여 취업률을 향상시켰다. 따라서 창원대학교 신소재공학부는 기계, 전기전자에 관련된 기본소양을 의무적으로 학습하기 때문에 메카트로닉스 분야에서 필요한 신소재공학도를 육성하는 기반을 마련하였다.

• Journal of the Korean Society for information Management
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• v.37 no.1
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• pp.51-78
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• 2020

Recently, the emphasis on self-directed learning and lifelong education is increasing the importance of school libraries in the curriculum. Accordingly, various studies have been conducted mainly from a structural, institutional and operational point of view. However, more research is necessary on the micro topics such as school library users' autonomous intrinsic motivations in the sense that school libraries play key roles in autonomy-based self-directed education. This study aims at finding out what types of school library use motivations are more important and the degree to which the use motivations affect the school library service quality based on the self-determination theory. In addition, this study examines how the use motivations and the perceived service quality vary depending on the school grade of the library users. Based on a focus-group-interview pilot study, a questionnaire survey was administered on the effects of school library motivations on perceived library service quality to 588 students from 5 high schools and 2 middle schools in Seoul. When the service quality and its components, service affect, information control, and library as place were set as dependent variables, in all these four cases, intrinsic motivations were more significant than extrinsic motivations. In addition, when middle school students and high school students were selected as separate analysis target groups, the results of both analyses show that the higher the intrinsic motivations were, the higher the perceived service quality was. The contribution of this study is that it applies the self-determination theory to school library service, measures the influence of motivation type based on the theoretical basis, and focuses on micro aspects to improve school library services.

• The Journal of Korean Association of Computer Education
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• v.8 no.1
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• pp.13-23
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• 2005

In this study, messages from on-line discussions of 28 preservice teachers were analyzed based on social constructivist learning theory. After preliminary discussion session for a week, small group discussions were conducted every single week with different topics during 4 weeks. One transcript with most frequent messages in each topic was selected, and a total of 72 messages were analyzed. Discussion topics were the issues related to the nature of science. The Interaction Analysis Model for Examing Social Construction of Knowledge in Computer Conferencing was used for the analysis. Analysis of the messages indicated that 'sharing information' was the most frequent, and that 'discovering/exploring dissonance' and 'negotiation of meaning/co-construction of knowledge' were the nex. However, messages of 'testing and modification of proposed synthesis' and 'testing and application of newly constructed meaning' were found to be rare. This result indicated that students' interaction through on-line discussion did not reach to the social construction of knowledge.

• The Magazine of the IEIE
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• v.18 no.10
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• pp.29-38
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• 1991

제6세대 컴퓨터로 불리는 신경컴퓨터는 학습과 병렬처리에 의해 인간의 두뇌 기능을 모방한다. 인간의 두뇌는 시각 인식, 음성인식, 촉각 감지등 패턴 인식뿐 아니라 인간의 복잡한 신체구조를 시각, 촉각 같은 감각기관의 도움을 얻어 움직이는 중요한 역할도 한다. 바로 이 모터제어(motor control)역시 신경회로가 담당하기 때문에 이를 기계적 신체에 해당하는 로봇 또는 광범위하게 기계, 비행기, 산업공정에 응용하는 것은 매우 자연스럽게 보인다. 이처럼 신경회로가 제어에 응용되는 것을 신경제어(neurocontrol)라 하고 이를 이용한 기계를 지능기계(intelligent machinery)라 한다. 지능기계는 기본적으로 인간처럼 경험축적, 학습, 불확실한 환경에서의 적응, 자기진단 등의 장점을 가지고 있다. 신경회로의 지극히 광범위한 응용분야중 신경제어는 가장 먼저 실현될 가능성이 높다. 실제로 로봇나 공정제어(process control)처럼 복잡한 비선형 시스템의 제어는 다량의 센서 정보에 기초한 실시한 제어를 필수로 하며 이는 신경회로를 사용함으로써 가장 효율적, 경제적으로 구현할 수 있다. 실제로 신경제어는 전세계적으로 이미 시스템 제어에 응용되어 좋은 결과를 내고 있다. 신경회로의 로봇나 자동화 응용은 학술적인 측면에서는 복잡한 비선형 시스템의 지능제어(intelligent control)문제에 대한 신선한 해결책을 마련해줄 뿐 아니라 산업자동화라는 막대한 시장을 뒤로 하고 있어 이론에서 실제에 걸쳐 가장 광범위한 파급효과를 가지는 최첨단 기술로 보여진다. 고부가가치 상품을 통한 국제경쟁력 제고의 차원에서도 정부, 기업 등의 과감한 연구 개발투자가 선행되어야 한다. 특히 이 분야의 연구는 선진국도 최근에 시작한 점으로 보아 정부, 기업이 이에 대한 연구개발 투자를 현명하게 할 경우에 세계적 기술 경쟁력도 확보할 수 있을 것이다. 본 해설에서는 로봇 및 시스템 제어에 관한 기초 이론과 신경회로 적용기술을 소개하고 기존방법과 비교했을 때의 우월성, 전세계적인 응용연구, 국내외 연구개발 현황, 상업화 가능성, 산업계 응용례, 기술상의 문제점, 향후 전망 등을 다루기로 한다.

• Journal of Convergence for Information Technology
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• v.11 no.8
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• pp.151-159
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• 2021

The purpose of this study was to examine the mediating effects of Positive Psychological Capital on the relationship between Small Business Enterpreneur's Learning Goal Orientation and Work Engagement. In order to achieve the purpose of research, the survey results of 300 small business Enterpreneurs who participated in the K-BIZ's Small Business Enterpreneurs Support Program were used for analysis. The collected data were analyzed using frequency analysis, reliability analysis, confirmatory factor analysis, descriptive statistical analysis, correlation analysis and structural equation model. The results of this study were as follows: First, learning goal orientation of small business enterpreneurs had positive effect on positive psychological capital. Second, positive psychological capital of small business enterpreneurs had positive effect on work engagement. Third, positive psychological capital of small business enterpreneurs had full mediating effect on the relationship between learning goal orientation and work engagement. Based upon these results, several suggestions were suggested to promote small business enterpreneurs' learning goal orientation, work engagement, and positive psychological capital.

• Journal of The Korean Association of Information Education
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• v.11 no.3
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• pp.349-358
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• 2007

This study is to develop a web-based career guidance system to be a help making a decision on one's occupation, which is important for a person's life. As career development education for higher grades of elementary school aims at providing basic knowledge necessary for career choice and forming a basic attitude toward occupation and values, it is desirable to carry out the guidance of a variety of occupations on the basis of personal interest and aptitude of individual students. Previously, however, most studies have remained at the level where simply test results are notified. Therefore, the study administered a career development test fit for higher grades of elementary school who are at the stage of potential career choice and developed a web-based career guidance system in which suitable occupation types are advised of based on the results. Beyond notifying test results, the developed career guidance system presents 3 excellent intelligences, rather than converting test results into scores. Thus, it is expected that the system will help students understand their areas of excellent intelligence, efficiently study related occupation types and duties, and learn to have awareness and make a better decision in relation to their career.

• The Journal of Korean Association of Computer Education
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• v.5 no.1
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• pp.35-43
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• 2002

By entering the information society, the trend of increasing use of the cyber education to deliver high-Quality educational programs is likely to continue. For instance, supported by the government agencies, central officials training institute is expending vast amounts of money for the installation of cyber education programs. However, much of the research that has been done concerns the discrepancy between the potential and the actual use of technology in the field of education and training. The intent of this study was to identify the decision of the adoption of cyber education among national officials who had just peceived the existence the cyber education programs which would be used for their professional training and development, and to investigate the relationships between the Rogers' five attributes of innovation (relative advantage, compatibility, easy of use, observability, trialiability) and their decision of adoption. The results of the study generally concurred with Rogers diffusion of innovation theory revealing that perceived compatibility, easy of use, and observability of cyber education are significant predictors of decision to participate in cyber education.

• Design Convergence Study
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• v.14 no.2
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• pp.1-16
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• 2015

As childhood obesity and nutrition imbalance emerge as social issues in South Korea today, the development of education materials on diets and nutrition has become important and has been attempted in diverse ways. The present study was conducted on early elementary school students with the objective of establishing directions for the design of personalized nutrition education materials that can promote a proper, balanced diet for children through application in daily life of knowledge acquired from self-learning linked to nutrition education that is taking place in their schools. For this purpose, a review of previous theoretical literature on nutrition education for early elementary students was performed. Survey questions were formulated based on the advice of field experts in medicine, education, and design and the survey was conducted among 110 children from 1st and 2nd grade in two elementary schools, one in Seoul and the other in Changwon. The results obtained from the user evaluation suggested that the early elementary school students showed positive reaction to nutrition education, had preference for the type of learning using multimedia-based contents and quiz activities, were willing to learn about calorie-adjusted meals, preferred the Gothic typeface and orange and green colors. Furthermore, they showed positive opinion on the use of numerical surveying method and pictorial style similar to actual appearance in connection with nutrition-related information representation. and preferences regarding learning styles and design elements

• Journal of Nutrition and Health
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• v.40 no.sup
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• pp.50-65
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• 2007

감미료는 감각을 만족시키는 기능을 가지며, 에너지를 공급하는 영양적 감미료와 에너지를 공급하지 않는 비 영양적 감미료로 분류 될 수 있다. 영양적 감미료들은(설탕, 과당 등) 미국 식약청에서는 일반적으로 안전하다고 인식(generally recognized as safe, GRAS) 되고 있다. 그러나 감미료 섭취는 적절한 영양섭취와 건강과 관련하여 아직 많은 우려를 가지고 있다. 첨가당으로부터의 에너지 섭취가 총 에너지 섭취의 25% 이상이면 식사의 질(quality)이 낮아진다. 지난 수 십 년 간, 당 섭취가 행동적인 면에 부정적으로 작용한다는 많은 이론들이 대두되었다. 그러나 포도당은 뇌의 주요 에너지원이다. 포도당의 기억력 향상기능은 모든 연령에서 보고되었으며, 특히 젊은 층보다는 노인에서 더 효과적이었다. 특히 적당량으로 섭취하였을 때 포도당의 섭취는 단어기억, 이야기 기억, 24시간 전에 학습한 정보에 대한 기억, 경계(vigilance)의 향상, 반응시간의 단축, 정신적 계산 능력의 향상, 시뮬레이터 조절에서의 실수감소, 스투르프효과(Stroop effect)의 감소, 지능검사의 향상, 실제사건에 대한 기억력 검사와 웩슬러 척도(Wechsler Scale)에서의 향상과 같은 여러 인지능력 검사에서 좋은 영향을 미친다고 한다. 포도당 용액과 간식의 섭취는 기억력을 개선한다. 아침식사를 거르는 것은 아동들에서 낮은 학습능력을 보인다. 인지능력 변화와 관련 있는 식이는 뇌에 포도당을 공급하는 것과 관련 있다. 과당도 동물실험에서 기억력을 향상시키는 기능이 있다는 것을 보여주고 있다. 본 논문은 당 섭취가 인지능력에 미치는 영향에 대한 과학적인 연구들을 종합하여 정리한 것이다.