• Title/Summary/Keyword: 기술 분류

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A Study on Analysis of national R&D research trends for Artificial Intelligence using LDA topic modeling (LDA 토픽모델링을 활용한 인공지능 관련 국가R&D 연구동향 분석)

  • Yang, MyungSeok;Lee, SungHee;Park, KeunHee;Choi, KwangNam;Kim, TaeHyun
    • Journal of Internet Computing and Services
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    • v.22 no.5
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    • pp.47-55
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    • 2021
  • Analysis of research trends in specific subject areas is performed by examining related topics and subject changes by using topic modeling techniques through keyword extraction for most of the literature information (paper, patents, etc.). Unlike existing research methods, this paper extracts topics related to the research topic using the LDA topic modeling technique for the project information of national R&D projects provided by the National Science and Technology Knowledge Information Service (NTIS) in the field of artificial intelligence. By analyzing these topics, this study aims to analyze research topics and investment directions for national R&D projects. NTIS provides a vast amount of national R&D information, from information on tasks carried out through national R&D projects to research results (thesis, patents, etc.) generated through research. In this paper, the search results were confirmed by performing artificial intelligence keywords and related classification searches in NTIS integrated search, and basic data was constructed by downloading the latest three-year project information. Using the LDA topic modeling library provided by Python, related topics and keywords were extracted and analyzed for basic data (research goals, research content, expected effects, keywords, etc.) to derive insights on the direction of research investment.

Deployment Strategies of Cloud Computing System for Defense Infrastructure Enhanced with High Availability (고가용성 보장형 국방 클라우드 시스템 도입 전략)

  • Kang, Ki-Wan;Park, Jun-Gyu;Lee, Sang-Hoon;Park, Ki-Woong
    • The Journal of Korean Institute of Next Generation Computing
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    • v.15 no.3
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    • pp.7-15
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    • 2019
  • Cloud computing markets are rapidly growing as cost savings and business innovation are being carried out through ICT worldwide. In line with this paradigm, the nation is striving to introduce cloud computing in various areas, including the public sector and defense sector, through various research. In the defense sector, DIDC was established in 2015 by integrating military, naval, air and military computing centers, and it provides cloud services in the form of IaaS to some systems in the center. In DIDC and various future cloud defense systems, It is an important issue to ensure availability in cloud defense systems in the defense sector because system failures such as network delays and system resource failures are directly linked to the results of battlefields. However, ensuring the highest levels of availability for all systems in the defense cloud can be inefficient, and the efficiency that can be gained from deploying a cloud system can be reduced. In this paper, we classify and define the level of availability of defense cloud systems step by step, and propose the strategy of introducing Erasure coding and failure acceptance systems, and disaster recovery system technology according to each level of availability acquisition.

A Study on the Feasibility of Special Classes Evaluation in General Schools in Three aspects of Curriculum and Class-Evaluation Integration (교육과정-수업-평가 일체화의 세 가지 측면에 근거한 일반학교 특수학급 학업성취도 평가의 타당성 고찰)

  • Shin, Seoyoung;Park, Changun
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.9 no.7
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    • pp.175-185
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    • 2019
  • In order for learners with different characteristics to reach meaningful learning, the curriculum - class-assessment must be integrated. In this study, we classified the integration into three aspects: content compatibility, operator convergence, and institutional connectivity, and looked at the status of unifying special classes in general schools from each perspective. As a result of the study, in terms of content suitability, adjustment of the curriculum to those subject to special education-professorial revision-assessment adjustment was not performed well except for subjects where individualization professors were conducted. From an actor's perspective, the ambiguity of the roles of general and special teachers resulted in the inability of curriculum coordinators, educators, evaluators and others to agree or even minimal consultations. In terms of institutional linkage, the authority and role of curriculum coordination, professorial revision, and assessment coordination were unclear except for subjects where individualization professors were conducted. As an alternative to discuss and remedy these problems, it proposed increasing awareness of individualized education, compulsory consultation and institutional readjustment.

An Analysis on Curriculum for Occupational Purpose of the Business Korean Language Curriculum between South Korea and China (한·중 직업교육 중심 비즈니스 한국어 교육 연구)

  • Li, Zhangpei;Park, Changun
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.9 no.2
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    • pp.153-161
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    • 2019
  • The purpose of this study to examine the status of Korean language education, and to examine the future direction between with korean and China. The Korean language course organized by the European Union Chamber of Commerce and Industry, which selects and conducts consignment companies through annual competition every year since 2002, In order to these goals and needs, it is imperative to develop a curriculum that enhances job skills. As Korean language education, a point that is necessary to clarify terms more clearly, which 'vocational education purpose' is widely used in the term of 'business education'. With all languages education, Korean language education is not meant to teach Korean to foreigners, but it is a process by which learners can apply Korean language learned in classroom to various situations, while outside the classroom through teaching and learning. Otherwise, the curriculum in the four-year college Korean language department in China, which is lacking in acquiring the ability to achieve the Korean language education goals and social needs. Korean language education in China is one of foreign language education and it is different from foreign language education such as English education as Minor Languages education.

First Record of the Smoothtail Mobula, Mobula thurstoni (Myliobatiformes: Myliobatidae) in Southern Korea (한국 여수에서 채집된 매가오리과 (Myliobatidae) 어류 첫기록종, Mobula thurstoni)

  • Myoung, Se Hun;Song, Young Sun;Kang, Chung-Bae;Choi, Hong-In;Kim, Jong-Gwan;Yoon, Moongeun;Im, Jaebok;Han, Dong-Jin
    • Korean Journal of Ichthyology
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    • v.33 no.2
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    • pp.148-154
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    • 2021
  • Two specimens (1770~1850 mm disc width) of Mobula thurstoni, belonging to the family Myliobatidae, order Myliobatiformes, were first collected from the central coast of the Southern Sea of Korea in September 2018. This species is characterized by an anterior margin of disc with double curvature, a white-tipped dorsal fin, and the absence of a caudal spine. This species is morphologically similar to Mobula kuhlii, but has an anterior margin of pectoral fins with a double curvature and the dorsal coloration is bluish black rather than white. In addition, M. thurstoni was well distinguished from M. kuhlii as determined by mitochondrial DNA 16S rRNA sequences with genetic distances ranging from 0.030 to 0.069. The Korean name 'Mae-kkeun-kko-li-jwi-ga-o-li' is proposed for the species M. thurstoni.

A Study on the Spill-over Economic Effect Analysis of Cultural and Creative Industries in Henan Province, China (중국 허난(河南)성 문화창의산업의 경제적 파급효과 분석)

  • Zhang, Binyuan;Jia, Tingting;Bae, Ki-Hyung
    • The Journal of the Korea Contents Association
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    • v.21 no.7
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    • pp.363-373
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    • 2021
  • The purpose of this research is to analyze the Spill-over economic effect of the cultural and creative industries(CCI) in Henan Province, China. The research object is the CCI of Henan Province, which is mainly based on five sectors out of 42 industries in the industrial association table of the Statistical Bureau of Henan Province, China in 2017 (culture, sports; recreation and research sector; experimental development and integrated technical services sector; information transmission, computer services and software sector; education sector, etc), and is analyzed through secondary integration and redefinition of the CCI of Henan Province. Through the analysis of Henan Province Industry Association Table, this paper provides some enlightenment to the future direction of the cultural and creative industries. The main analysis results are as follows. The total production inducement of the CCI in Henan province is 48,848 billion yuan, and in particular, the production inducement coefficient of the industry in Henan province is 2.72809, 2.23909 (total of columns and rows), Index of the power of dispersion is 0.26325, and the index of the sensitivity of dispersion is 0.87535. Income induction coefficient is 0.55211, production tax induction coefficient is 0.09291. Because CCI of Henan Province has full development potential, the government needs to provide active support and policy support, in addition to the need for legal provisions and supervision of market management. In order to improve the innovative development of the CCI, it is necessary to develop a new model of "CCI+X".

On Developments of Teaching-Learning Contents and Constructivist Teaching Methods Using Mobile Applications Based on Augmented Reality in Mathematics Education (증강현실 기반 모바일 앱을 활용한 수학 교수·학습 콘텐츠 개발과 구성주의적 수업방안)

  • Kim, Byung Hak;Song, Jinsu;Park, Ye Eun;Jang, Yo Han;Jeong, Young Hun;Ahn, Jin Hee;Kim, Jun Hyuk;Go, Eunryeong;Jang, In Kyung
    • Communications of Mathematical Education
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    • v.33 no.3
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    • pp.207-229
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    • 2019
  • In the era of the Fourth Industrial Revolution, various attempts have been made to incorporate ICT technology into mathematics teaching and learning, and the necessity and efficiency of classroom instruction using flipped learning, virtual reality and augmented reality have attracted attention. This leads to an increase in demand for instructional contents and their use in education. Therefore, there is a growing need for the development of instructional contents that can be applied in the field and the study of teaching methods. In this point of view, this research classifies the types of teaching-learning, presents the flipped learning instruction and mathematics contents by teaching-learning types using constructivist mathematics education principles and augmented reality-based mobile applications. These methods and lesson plans can provide a useful framework for teaching-learning in mathematics education.

The Correlation between Motor Capacity, Capability, and Performance in Children with Cerebral Palsy (뇌성마비 아동의 능력, 수행능력, 수행 간 상관관계)

  • Kim, JangGon;Kim, TaeYoon
    • 재활복지
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    • v.20 no.3
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    • pp.125-139
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    • 2016
  • The aim of this study was to distinguish 3 concepts(capacity, capability, and performance) for the motor activities of children with cerebral palsy(CP) and examinate relation between capacity(can do in a standardized environment), capability(can do in daily environment), and performance(does do in daily environment). Cross-sectional analysis with a assessment record of children with CP (n=40; 19males, 21 females; mean age 6y 6mo, SD 3y 8mo) was performed. Levels of severity according to the Gross Motor Function Classification System(GMFCS) included level1(13%), level2(10%), level3(43%), level 4(33%), and level 5(3%). Motor activities capacity was assessed by the Gross Motor Function Measure (GMFM-66). Capability and performance were assessed using 2 scales(functional skill, caregiver assistance) of the Pediatric Evaluation of Disability Inventory(PEDI). Correlations between capacity and capability was 0.811(p < .05), and between capability and performance were high(r=0.711, p < .05). And the correlation between capacity and performance is the lowest(r=0.711, p < .05). Motor performance levels are only partly reflected by the motor capacity and motor capability levels in children with CP. Because performance is influenced by Contextual factors (particularly, social factors such as family function). This study suggests that it is necessary to distinguish and evaluate the capacity, capability, and performance in children with cerebral palsy.

Correction of Lunar Irradiation Effect and Change Detection Using Suomi-NPP Data (VIIRS DNB 영상의 달빛 영향 보정 및 변화 탐지)

  • Lee, Boram;Lee, Yoon-Kyung;Kim, Donghan;Kim, Sang-Wan
    • Korean Journal of Remote Sensing
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    • v.35 no.2
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    • pp.265-278
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    • 2019
  • Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band (DNB) data help to enable rapid emergency responses through detection of the artificial and natural disasters occurring at night. The DNB data without correction of lunar irradiance effect distributed by Korea Ocean Science Center (KOSC) has advantage for rapid change detection because of direct receiving. In this study, radiance differences according to the phase of the moon was analyzed for urban and mountain areas in Korean Peninsula using the DNB data directly receiving to KOSC. Lunar irradiance correction algorithm was proposed for the change detection. Relative correction was performed by regression analysis between the selected pixels considering the land cover classification in the reference DNB image during the new moon and the input DNB image. As a result of daily difference image analysis, the brightness value change in urban area and mountain area was ${\pm}30$ radiance and below ${\pm}1$ radiance respectively. The object based change detection was performed after the extraction of the main object of interest based on the average image of time series data in order to reduce the matching and geometric error between DNB images. The changes in brightness occurring in mountainous areas were effectively detected after the calibration of lunar irradiance effect, and it showed that the developed technology could be used for real time change detection.

Quality Improvement Method on Grammatical Errors of Information System Audit Report (정보시스템 감리보고서의 문법적 오류에 대한 품질 향상 방안)

  • Lee, Don Hee;Lee, Gwan Hyung;Moon, Jin Yong;Kim, Jeong Joon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.19 no.2
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    • pp.211-219
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    • 2019
  • Accomplishing information system, techniques, methodology have been studied continuously and give much help to auditors who are using them. Additionally audit report which is the conclusion of accomplishing ISA(information system audit), has law of a basis and phase with ITA/EA Law(Electronic Government Law). This paper is for better quality of ISA report. But it has more errors about sentence and Grammatical structures. In this paper, to achieve quality improvement objectives, it is necessary to recognize the importance of an audit report by investigating on objectives, functionality, structures and usability of a report firstly, and a legal basis, the presence of report next. Several types of audit reports were chosen and the reports errors were divided into several categories and analyzed. After grasping reasons of those errors, the methods for fixing those errors and check-lists model was provided. And based on that foundation, the effectiveness validation about real audit reports was performed. The necessity for efforts to improve the quality of audit reports was emphasized and further research subject(AI Automatic tool) of this paper conclusion. We also expect this paper to be useful for the organization to improve on ISA in the future.