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DeepSDO: Solar event detection using deep-learning-based object detection methods

  • Baek, Ji-Hye;Kim, Sujin;Choi, Seonghwan;Park, Jongyeob;Kim, Jihun;Jo, Wonkeum;Kim, Dongil
    • The Bulletin of The Korean Astronomical Society
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    • v.46 no.2
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    • pp.46.2-46.2
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    • 2021
  • We present solar event auto detection using deep-learning-based object detection algorithms and DeepSDO event dataset. DeepSDO event dataset is a new detection dataset with bounding boxed as ground-truth for three solar event (coronal holes, sunspots and prominences) features using Solar Dynamics Observatory data. To access the reliability of DeepSDO event dataset, we compared to HEK data. We train two representative object detection models, the Single Shot MultiBox Detector (SSD) and the Faster Region-based Convolutional Neural Network (R-CNN) with DeepSDO event dataset. We compared the performance of the two models for three solar events and this study demonstrates that deep learning-based object detection can successfully detect multiple types of solar events. In addition, we provide DeepSDO event dataset for further achievements event detection in solar physics.

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A Study of the Changes in University Library Space and their Assessment Strategies (대학도서관 공간구성 변화 및 평가방안 연구)

  • Chang, Yunkeum
    • Journal of the Korean Society for information Management
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    • v.31 no.4
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    • pp.229-248
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    • 2014
  • University libraries have been attempting to reorganize their space through new building construction and remodeling to cope with the rapid changes in information and communication technologies and university environment. These changes seem to reflect the need for the shift of the university library functions toward the facilitator role of enabling continuous learning and research through space reorganization beyond the traditional supporter role of preserving and supplying library materials and providing learning space and services to university members. Despite all these changes of university library space functions, however, their assessment has been still limited to the library users' satisfaction and usage changes before and after library building renovation or new construction, calling for the need to develop proper measurement tools for evaluating the library functions as learning commons that reflect university vision and goals. Therefore, this study intends to analyze the trend of space reorganization practices in university libraries and the studies of evaluating its effect, in order to develop tools to evaluate the effectiveness of space reorganization and to provide basic data for future space reorganization and assessment strategies.

Preliminary Design for Preparing a Natural Learning and Experimental Area in Bukchun and Boundary(II) -Determination of Flood Level/Tree Planting, Analysis of Bukchun Scene- (북천지역 자연학습 체험단지 조성을 위한 기본 계획(II) -홍수위 및 식수결정, 북천 경관분석-)

  • 정종현;최석규;조세환
    • Journal of Environmental Health Sciences
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    • v.28 no.5
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    • pp.13-21
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    • 2002
  • This study analyzed the characteristic of basic river structure, a flood level, the tree planting recommendation and syn thetic design, in order to establish a basic plan for preparing a natural practical area of environmental ecosystem at Bukchun and its surroundings. It was also investigated based on the opinion of citizens, geographical condition and the equipment/utilization examination of Bukchun which were included ecological circumstances, and thus provided a composite item for managing the natural river. This study also considered the development of the river in terms of culture, environment and ecology concept. The results were summarized as followed. Bukchun showed that the speed of a funning fluid is very fast on a period of flood. but very slow in a period of water shortage about 0.02 m/s. To prevent the speed change of a running fluid by a steep slope in a riverbed, there established Dongchun sluice gates under a bridge, including three sluice gates under a bridge, but there occurred extremely a riverbed erosion and corrosion section. The result of comparison between real flood degree and prediction flood data, there should perform a countermeasure the riverbed structure regulation of this area. Also, it was needed an exhaustive flood management in summer. According to the Bukchun and Hyungsangang riverbed investigation, there were needed preparation for natural/practical area and ecology Park development in the future. This study was investigated tree Planting/flower/blossom around the Bukchun and its surroundings. It was recommended willow, Italian poplar, bamboos and cherry blossoms in the Hyungsangang and Bukchun. There exist together historical space, environment space iud have enough possibility both natural learning space and civil rest space. And, it is possible to compose ecology natural learning and experimental area.

Implementation of Context aware Learning System by Designing Ubiquitous Learning Space and OWL Context Model (유비쿼터스 학습공간과 OWL 상황 모델 설계를 통한 상황 인식 학습 시스템 구현)

  • Hong, Myoung-Woo;Lee, Young-Whan
    • Journal of the Korea Society of Computer and Information
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    • v.16 no.6
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    • pp.99-109
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    • 2011
  • Ubiquitous computing technology makes an impact on the appearance of u-learning and presents an advanced direction of futuristic school education. In ubiquitous learning environments, various embedded computational devices will be pervasive and interoperable across the network for supporting the learning, so users may utilize these devices anytime anywhere. An important next step for ubiquitous learning is the introduction of context-aware learning service that employing knowledge and reasoning to understand the local context and share this information in support of intelligent learning services. However, the existing studies on design and application of ontology context model to support context-aware service in actual school environments are incomplete state. This paper, therefore, suggests a scheme of constructing ubiquitous learning space for existing school network by introducing USN to support context-aware ubiquitous learning services. This paper, also, designs an ontology based context model for ubiquitous school environments which describes context information through OWL. To determine the suitability of proposed ubiquitous learning space and ontology context model, we implement some of context-aware learning services in the ubiquitous learning environments.

The Effect of Maker Education Program in School Maker Space on Creative Problem Solving Ability and Self-Directed Learning Ability of Elementary Students (학교내 무한상상실을 활용한 메이커교육 프로그램 적용이 초등학생의 창의적 문제해결력과 자기주도적 학습력에 미치는 효과)

  • Son, Kyoung-ok;Lee, Hyeong-cheol
    • Journal of Korean Elementary Science Education
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    • v.40 no.1
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    • pp.55-65
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    • 2021
  • The purpose of this study was to investigate the effects of application of maker education program in school maker space on the creative problem solving ability and self-directed learning ability of elementary students. For research, we secured 18 periods of creative experience activities with 5 categories appropriate for elementary students, and integrated these activities into an elementary maker education program in school maker space. Pre and post tests were done before and after application of this maker education program to assess the changing in participants' creative problem solving ability and self-directed learning ability. The results of this study can be summarized as follows: First, the maker education program meaningfully improved the creative problem-solving abilities of elementary school students. Second, the maker education program meaningfully improved the self-directed learning abilities of elementary school students. From interview with the students, we could know that this program made the students have self-confidence and gave them favorable impression.

Architectural Design Approach of New Medical Education Building Fit for Pedagogy Changes (미래 의학교육을 위한 의과대학 신축의 건축디자인 방향성)

  • Kim, Namju
    • Korean Medical Education Review
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    • v.17 no.3
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    • pp.97-104
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    • 2015
  • This literature review explores relevant research and evaluation on pedagogy and physical learning spaces. This study also is intended to encourage discussion among stakeholders on the best medical school developments, in light of emerging learning trends relevant to their institutions. The study has revealed that new environments for learning are being designed or reshaped in response to changing pedagogical approaches, to incorporate new information technology, and to accommodate the changing abilities of new generations of learners. Formal teaching spaces for large groups with a 'sage on a stage' are becoming less common than smaller lecture rooms, although classrooms form a large component of universities and will continue to dominate in the future. However, the traditional layout of these spaces is being transformed to incorporate multiple learning modes. Classrooms should be profound places of revelation and discovery. A well-designed space has the ability to elevate discourse, encourage creativity, and promote collaboration. Within the classroom walls, a learning space should be as flexible as possible, not only because different teachers and classes require different configurations, but because in order to fully engage in learning, students need to transition between lectures, group study, presentations, discussions, and individual work time.

Exploring Learning Effects of Elementary Students in a Geological Field Trip Activity concerning 'Minerals and Rocks' - Focus on Novelty Space - ('광물과 암석' 관련 야외지질학습에서 초등학생들의 학습 효과에 대한 탐색 - 생소한 경험 공간을 중심으로 -)

  • Choi, Yoon-Sung;Kim, Jong-Uk
    • Journal of the Korean earth science society
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    • v.43 no.3
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    • pp.430-445
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    • 2022
  • The purpose of this study was to explore the learning effects in elementary school students who participated in a geological field trip conducted under the theme 'minerals and rocks', focusing on novelty space. A total of 10 sixth-grade students participated in this program held at a public elementary school in Seoul as part of after-school club activities. Students observed mineral and rock samples in a classroom and outdoor learning environment. The authors collected activity papers (texts, drawing), researchers' participation notes, video and audio recordings containing the study participants' activities, and post-interview data To analyze the learning effects in the cognitive domain of students, the observation analysis framework for rock classification of Remmen and Frøyland (2020) and the rock description analysis framework of Oh (2020) were used. Additionally, to explore the learning effects of psychological and geographic areas, students' drawings, texts, discourses, and interview data were inductively analyzed. The results showed that the students demonstrated 'everyday' and 'transitional' observations in the classroom learning environment, while in the outdoor learning environment (school playground, community-based activities), they demonstrated 'transitional' and 'scientific' observations. Moreover, as the scientific observation stage progressed, more types of descriptive words for rocks were used. In terms of psychological and geographic aspects, students showed their selection of places to explore familiar outdoor learning environments, positive perceptions of outdoor learning, and aesthetic appreciation. Finally, this study not only discussed novelty space as a tool for analyzing students' learning effects but also suggested the need for an academic approach considering new learning environments, such as learning through virtual field trips.

A Study on the Community Space for Socialization of Secondary School Students - Focused on Alternative Educational Perspective Using Examples of Schools from Other Countries - (중등학교 학생의 사회성 확대를 위한 커뮤니티 공간에 관한 연구 - 대안교육 관점의 해외학교 사례 분석을 중심으로 -)

  • Lee, Jae-Rim
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.12 no.2
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    • pp.43-52
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    • 2013
  • This study aims to theoretically examine the educational and living elements that are needed for social education in the school system and suggest an approach to apply this result to the environmental aspects of the space in schools. To do this, characteristics of space in exemplary middle school oversee were analyzed. Also, the characteristics and status of the school space environment that foster socialization were examined. In order to increase students' social skills, the following community space should be considered. 1) teaching and learning spaces facilitating a variety of teaching methods, such as lecture, discussion, seminar classes, 2) open-spaces for communication among students, such as home base, hall, library, museum, and restaurant, 3) open-spaces for STEM education, 4) transparent windows located in the boundary wall between classrooms and hallways, 5) a large performance stage for presentation of student activities and experiences, 6) smart-learning spaces for fluent ICT system in classes and in public spaces, 7) restaurants and libraries located in the middle space of the school, and 8) ecological environments for student learning.

A Historical Study on the Classroom Space in Elementary School (초등학교 교실공간에 관한 사적 고찰)

  • Rieu, Ho-Seoup
    • Journal of the Korean Institute of Educational Facilities
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    • v.23 no.1
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    • pp.3-12
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    • 2016
  • This thesis examines the shape, organization, background, and significance of the classroom space in highly appraised elementary schools since the inauguration of public education in modern times in the fields of education or architecture. This thesis acknowledges that classroom shapes comprise an auditorium-like space for a large-scale study group, a square-shaped classroom designed for simultaneous teaching for single class, and bent and L-shaped classrooms for various learning activities. Whereas the square-shaped classroom for simultaneous teaching which has lasted until now evolved around 1870, the post-1930s era witnessed the emergence of a composition in which classroom and outside space are associated, of an atypical classroom, and of Functional Unit where common space and classrooms are assembled. It is deemed that the emergence of the atypical classroom comes from the reinterpretation of learning and space pursuant to progressive pedagogical philosophy and child development theories and functional architecture theories. Thus, this thesis verifies that school construction and learning space can be newly created and the synthesis between education, child development studies, and architecture is a prerequisite to such a creation.

Detecting outliers in segmented genomes of flu virus using an alignment-free approach

  • Daoud, Mosaab
    • Genomics & Informatics
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    • v.18 no.1
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    • pp.2.1-2.11
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    • 2020
  • In this paper, we propose a new approach to detecting outliers in a set of segmented genomes of the flu virus, a data set with a heterogeneous set of sequences. The approach has the following computational phases: feature extraction, which is a mapping into feature space, alignment-free distance measure to measure the distance between any two segmented genomes, and a mapping into distance space to analyze a quantum of distance values. The approach is implemented using supervised and unsupervised learning modes. The experiments show robustness in detecting outliers of the segmented genome of the flu virus.