• Journal of the Korea Society of Computer and Information
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• v.11 no.6 s.44
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• pp.27-33
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• 2006

In this thesis, we presents the component design and retrieval prototype system which can retrieve the most appropriate component for reuse system. If it used only an abject to reuse unit, it can not understand mutual reaction and can not sustain relationship between objects. Therefore, we porposed clustering component for reuse unit. It makes to understand relationship and reaction between object, so User can retrieve the proper component for reuse system. And porposed retrieval prototype system can select the correct things. it provide 3 facet retrieval environment against ambiguous retrieval definition.

• 한국IT서비스학회:학술대회논문집
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• 2003.05a
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• pp.95-101
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• 2003

GIS의 국가적 틀을 이루는 공급주체에는 중앙정부 이외에도 지방자치정부가 있다. 현실적으로 지방자치정부는 행정 일선에 위치하고 있으며 각 지역의 특수성을 고려하여 지역 주민들의 수요를 충족시키고 행정서비스의 질을 향상시키기 위하여 GIS를 도입할 수 있는 대표적인 기관들이다. 학계의 전문가들은 공공 부문 업무의 80%가 지리적 연관성을 갖는 것으로 보고 있기 때문에 향후 GIS가 정부의 서비스 제공과 관리자들의 의사결정에 필수적인 요소로 자리잡을 것으로 예측된다. 본 연구의 목적은 국내 기초지방자치정부가 정부의 행정효율을 향상시키기 위하여 그리고 국민을 위한 서비스의 질을 높이기 위하여 GIS를 얼마나 도입하여 활용하고 있는지를 알아보고자 했다. 또한 이러한 조사분석을 통하여 얻은 결과들을 정리하여 국가적으로 GIS의 활용을 촉진할 수 있는 방안들을 담고자 하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.710-711
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• 2015

최근 사이버 공격이사회, 국가적 위협으로 대두되고 있다. 최근 신종 악성코드에 의한 A.P.T 공격이 사회적으로 큰 혼란을 야기하고 있다. 이에 따라 기업 내에서 방화벽, IPS, VPN 등의 네트워크 보안 시스템의 통합 관리를 목적으로 하는 통합관제시스템(ESM)의 필요성이 제기되었다. 그러나 기존의 ESM의 방식은 외부에서 내부로 유입되는 트래픽만을 모니터링하는 네트워크 기반 공격 탐지기법을 사용하기 때문에, 외부 사이버 공격만을 차단할 수 있다는 한계점을 가지고 있다. 따라서 본 연구는 주요 IT 기반시설의 네트워크, 시스템, 응용 서비스 등으로부터 발생하는 데이터 및 보안 이벤트 간의 연관성을 분석하여 보안 지능을 향상시키는 빅데이터를 활용한 보안로그시스템을 제안한다. 본 연구에서 제안한 빅데이터를 활용한 보안로그시스템을 통해 분산 기반의 저장/처리 기술 적용하고자 한다.본 기술을 적용한 지능형 정보 분석 플랫폼 구성을 통해, 가용성과 확장성을 확보하여 통합적 보안 관제가 가능하도록 한다. 뿐만 아니라 기업 내로의 악성코드 유입, 감염(전파) 그리고 실시간 모니터링이 가능하여 고객 서비스 만족도가 향상되는 파급효과가 기대된다.

• Journal of Korean Society of Transportation
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• v.30 no.4
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• pp.33-42
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• 2012

Recent development and penetrating expansion in ICT(Information and Communication Technology) has brought considerable improvements in transportation services. However, there is a controversial debate whether transportation and communications behave as substitutes or as complements to one another. On this subject, recent studies considered those two industries as services, but transportation and communications are broadly put for intermediary goods into other industries. Hence, it is essential to examine this issue from understanding their relationships to each other with respect to manufacturing and services. In this study, input-output tables of benchmark years from 1980 to 2005 have been analysed to explore the relationships between transportation and communications using Spearman's correlation analysis. The results show that both industries had complementary roles over the period, but, to some extent, changed into substitution roles in some categories.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.168-183
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• 2013

Contemporary era has witnessed a diversity of emotion and emotions being expressed through consumption. This paper examines the relationship between social paradigms and emotional design by means of literature study. In sections 2 and 3, I examine the prevalent social paradigms and the concept/development of emotional design. In section 4, I show the correspondence between social paradigms and specific types of emotional design. More specifically it is shown that "pluralism and decentrality" has led to fun design, individual design and participative design; "emotional revolution" has given rise to multi-sensory design, design with positive feelings, design with negative feelings and aesthetic design; "non-materialistic values" have their correspondence in design as performance and story-telling in design; and "organic worldview" finds its expression in ecological design with a wellness emphasis, and in interactive emotional design.

• The Journal of the Korea Contents Association
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• v.22 no.6
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• pp.238-246
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• 2022

The purpose of this study was to draw the conclusion that the appearance of 'Gyuncheonak' in the lyrics of Jangsaengboyeonjimu and that 'Gubyeonjakdaedo' are related to Gucheondo in Taoism and Buddhism. Jangsaengboyeonjimu is a Jeongjae, which has a variety of dance moves and composition changes compared to any other royal Jeongjae, and is recorded in detail that the formation changes nine times. the lyrics and Gubyeonjakdaedo were compared. The relationship was inferred by applying the Gubyeonjakdaedo of the record book to the Gucheondo Island of Taoism and Buddhism. It is believed that in 1829, Crown Prince Hyo Myung created the work by putting the meaning of Gyuncheondo in Taoism and Buddhism in the song and Gubyeonjakdaedo.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.15 no.3
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• pp.115-126
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• 2005

SHACAL-2 is a 256-bit block cipher with up to 512 bits of key length based on the hash function SHA-2. It was submitted to the the NESSIE project and was recommended as one of the NESSIE selections. In this paper, we present two types of related-key attacks called the related-key differential-(non)linear and the related-key rectangle attacks, and we discuss the security of SHACAL-2 against these two types of attacks. Using the related-key differential-nonlinear attack, we can break SHACAL-2 with 512-bit keys up to 35 out of its 64 rounds, and using the related-key rectangle attack, we can break SHACAL-2 with 512-bit keys up to 37 rounds.

• Journal of Practical Agriculture & Fisheries Research
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• v.22 no.1
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• pp.113-129
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• 2020

In this study we examined the topic analysis and correlation analysis by text mining to extract meaningful information or rules from the self introduction letter of freshman at Korea National College of Agriculture and Fisheries in 2020. The analysis items are described in items related to 'academic' and 'in-school activities' during high school. In the text mining results, the keywords of 'academic' items were 'study', 'thought', 'effort', 'problem', 'friend', and the key words of 'in-school activities' were 'activity', 'thought', 'friend', 'club', 'school' in order. As a result of the correlation analysis, the key words of 'thinking', 'studying', 'effort', and 'time' played a central role in the 'academic' item. And the key words of 'in-school activities' were 'thought', 'activity', 'school', 'time', and 'friend'. The results of frequency analysis and association analysis were visualized with word cloud and correlation graphs to make it easier to understand all the results. In the next study, TF-IDF(Term Frequency-Inverse Document Frequency) analysis using 'frequency of keywords' and 'reverse of document frequency' will be performed as a method of extracting key words from a large amount of documents.

• Journal of Korean Home Economics Education Association
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• v.19 no.2
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• pp.51-60
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• 2007

This study aimed to generate basic data for enhancing efficiency of education by analyzing and comparing the differences between students and teachers in their attitudes for female teachers'attire. A questionnaire was administered to about 622 students and 176 teachers (from elementary, middle and high schools) in Seoul and Suwon in South Korea. Data obtained from the responses were analyzed using the SPSS program. The results were as follows: First, both students and teachers exhibited higher than average scores in neatness and modesty of female teachers' attire and hair style, and especially teachers considered modesty of attire more important, while students considered neatness of hair style more important. Teachers thought the correlation between attire and efficiency of instruction was high, while students thought otherwise. Also, teachers usually considered teacher' attire more important than students did. Second, according to the results of analysis by school, students in elementary schools considered neatness of female teachers' attire and hair style to be more important than teachers did. On the other hand, teachers in high schools considered it more important than students did. With regard to modesty, the difference between students and teachers became significant in high schools compared to middle schools. In middle and high schools, teachers demanded modest outfits for female teachers more strongly than students did. Across elementary, middle and high schools, teachers exhibited a more positive attitude toward the correlation between what female teachers wear and their teaching efficiency.

• Journal of the Korean Society of Radiology
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• v.83 no.3
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• pp.486-507
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• 2022

Cerebral small vessel disease (CSVD) includes vascular lesions detected on brain MRI, such as white matter hyperintensities, lacunar infarctions, microbleeds, or enlarged perivascular spaces. There is accumulating evidence that vascular changes may play an important role in development of Alzheimer's disease (AD), and CSVD lesions detected on brain MRI were reported to be associated with β-amyloid and tau proteins accumulation. As the vascular contribution has therapeutic potential, it is important to understand the association of CSVD with AD and AD biomarkers. This review begins with a brief introduction of AD and AD biomarkers, explains the association between AD and vascular changes, and then details the pathogenesis and MR imaging findings of CSVD. Afterwards, we discuss the association of CSVD with AD and AD biomarkers.