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대학수학 학습 능력의 잠재력 개발-II (Developing Students' Latent Math-Learning Ability in College Mathematics Classes-II)

  • 김병무
    • 한국수학교육학회지시리즈E:수학교육논문집
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    • 제23권3호
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    • pp.483-506
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    • 2009
  • 학생들이 수학수업에 참여도를 높이고 효율성을 극대화하기 위해 그들의 마음을 움직여, 인생을 살아가며 내재된 수학 잠재능력을 깨워 쓸모 있고 훌륭한 사람으로 이끌어주고 수학을 다시 생각할 기회를 주려고 한다. 수학에 관심을 갖고 수학을 하도록 안내하는데 있어, 개인마다 내재되어 있는 수학적 잠재력을 깨울 수 있게 하는 방법에 대해 알아보려고 한다. 각 항목에 대한 구체적인 프로그램을 만들고, 그것을 시행하는 데는 상당한 어려움이 따르지만, 그 결과가 만족스러울지 학생들에게 알아보았다. 중복되는 주제가 서로 도움을 주고 시너지 효과를 주므로, 하나씩 읽어가며 좋은 결과를 기대하면 각 주제가 서로 상승 작용을 일으키고 도움을 준다. 물론 수학에 관심이 덜하고 수학학습 능력이 부족한 학생들을 깨우치기 위한 시도이지만, 16개 큰 주제에 딸린 작은 주제 중 어느 하나를 글쓰기를 통해, 그 글에 대해 서로 발표하고 비판하며 수학 잠재력을 한 사람이라도 더 깨우치게 되었다.

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토픽모델링을 활용한 한국과 미국의 산업수학 이슈 비교 (Comparison of Industrial Mathematics Issues between Korea and the US Using Topic Modeling)

  • 김성연
    • 한국콘텐츠학회논문지
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    • 제22권7호
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    • pp.30-45
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    • 2022
  • 본 연구에서는 텍스트마이닝을 활용해 한국과 미국의 온라인 뉴스와 포럼에서 산업수학과 관련한 이슈를 파악하고, 그 결과를 비교 분석하였다. 이를 위해 한국의 주요 포털 사이트인 네이버의 뉴스 기사, 클리앙의 게시글과 댓글, 그리고 미국의 New York Times와 CNN의 뉴스 기사, Reddit의 게시글과 댓글에서 산업수학과 관련한 텍스트 데이터를 수집하여 구조적 토픽모델링 분석을 수행하였다. 주요 분석결과는 다음과 같다. 첫째, 한국의 뉴스는 산업수학의 필요성과 정부의 지원 측면에 대해, 미국에서는 산업수학이 활용되는 다양한 분야에 대해 다루는 것으로 나타났다. 둘째, 한국에서는 온라인 뉴스와 포럼에서 각기 다른 주제로 동일한 개수의 이슈가 나타났지만, 미국에서는 온라인 포럼보다 뉴스 기사에서 더 많은 이슈를 다루고 있는 것으로 나타났다. 이를 토대로 한국에서 산업수학이 정착하는 데 있어 연구자들에게는 학술적, 그리고 정부에는 실무적 시사점을 제시하였다.

Research Trends Analysis on ESG Using Unsupervised Learning

  • Woo-Ryeong YANG;Hoe-Chang YANG
    • 융합경영연구
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    • 제11권3호
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    • pp.47-66
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    • 2023
  • Purpose: The purpose of this study is to identify research trends related to ESG by domestic and overseas researchers so far, and to present research directions and clues for the possibility of applying ESG to Korean companies in the future and ESG practice through comparison of derived topics. Research design, data and methodology: In this study, as of October 20, 2022, after searching for the keyword 'ESG' in 'scienceON', 341 domestic papers with English abstracts and 1,173 overseas papers were extracted. For analysis, word frequency analysis, word co-occurrence frequency analysis, BERTopic, LDA, and OLS regression analysis were performed to confirm trends for each topic using Python 3.7. Results: As a result of word frequency analysis, It was found that words such as management, company, performance, and value were commonly used in both domestic and overseas papers. In domestic papers, words such as activity and responsibility, and in overseas papers, words such as sustainability, impact, and development were included in the top 20 words. As a result of analyzing the co-occurrence frequency of words, it was confirmed that domestic papers were related mainly to words such as company, management, and activity, and overseas papers were related to words such as investment, sustainability, and performance. As a result of topic modeling, 3 topics such as named ESG from the corporate perspective were derived for domestic papers, and a total of 7 topics such as named sustainable investment for overseas papers were derived. As a result of the annual trend analysis, each topic did not show a relatively increasing or decreasing tendency, confirming that all topics were neutral. Conclusions: The results of this study confirmed that although it is desirable that domestic papers have recently started research on consumers, the subject diversity is lower than that of overseas papers. Therefore, it is suggested that future research needs to approach various topics such as forecasting future risks related to ESG and corporate evaluation methods.

A Study on the Strategic Globalization Performance of 'Journal of Distribution Science'

  • YANG, Hoe-Chang;CHU, Wujin;HWANG, Hee-Joong;YOUN, Myoung-Kil
    • 유통과학연구
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    • 제20권3호
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    • pp.59-69
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    • 2022
  • Purpose: The purpose of this study is to provide information for other journals as well as the continuous development of distribution science research by confirming the globalization performance of the Journal of Distribution Science (JDS), the main journal of KODISA. Research Design, Data, and Methodology: A total of 863 papers published in JDS from 2011 to 2021 searched by scienceON were divided into 4 periods and analyzed under the headings of submission system, standardity, collaboration, and degree of achievement of publication goals. SPSS 24.0 and R 4.1.1 package were used to perform the publication frequency analysis, crosstab-analysis, keyword frequency analysis, and LDA topic modeling were performed. In addition, trend analysis with weight applied to each word was performed. Results: It was found that the ratio of English-written papers, which is the indicator of a journal's starndardity, is continuously increasing, and the ratio of overseas authors, which is the indicator of collaboration, is also continuously increasing. It was confirmed through keyword trend analysis by period and LDA topic modeling results - which were weighted to confirm the degree of achievement of the journal's publication goal - that the articles published by the journal has been in agreement with monthly research topic proposed by JDS. Conclusion: By examining the five criteria for globalization, it can be concluded that JDS's efforts for globalization are achieving significant results and providing effective directions for other academic journals. However, in order for JDS to become a top academic journal, it was suggested that efforts should be made to establish a system for collaborative research by domestic and foreign authors, as well as to provide a clear definition for the monthly research topics and classification of sub-topics.

토픽모델링을 활용한 정보활용교육 연구주제 분석 및 교육내용 제안 (A Study of Information Literacy Curriculum Using Topic Modeling)

  • 윤지혜;정유경
    • 정보관리학회지
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    • 제39권4호
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    • pp.1-21
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    • 2022
  • 본 연구는 정보활용교육 분야의 연구주제들을 파악하여 정보활용교육에 제안할 수 있는 요소들이 있는지를 살펴보는데 연구의 목적이 있다. 우선, 정보활용교육과 관련된 문헌정보학 분야의 논문 97편을 대상으로 토픽모델링을 적용하여 '미디어 리터러시', '정보활용교육의 교수학습방법', '정보원 이용 및 판단' 등의 주요 주제를 파악하였다. 분석 결과를 바탕으로, 교육내용 측면에서는 Big 6 정보모형, 교육방법과 관련해서는 미국 사서교사협회의 정보활용 능력기준과 미국 대학 및 연구도서관협회의 정보활용교육 개발지침을 고려하여 정보활용교육 교육내용을 제안하였다. 본 연구는 정보활용교육 전반의 연구주제와 연관된 교육 요소들을 파악하였으며, 이를 바탕으로 '정보원 이용 및 판단', '정보윤리'와 관련된 교육내용을 보다 강조하였다는 점에서 의의가 있다.

A Korean Elementary School EFL Teacher's Implementation of Teacher-Based Assessment

  • Kang, Dae-Min
    • 영어어문교육
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    • 제17권2호
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    • pp.19-37
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    • 2011
  • This study examines a Korean elementary school EFL teacher's practice of teacher-based assessment (TBA), a subject which has been little researched despite the authorities' strong call for its implementation. The classroom interactions for TBA were observed and audio-recorded in eight fifth-grade classes between March and June 2010. Additionally, the teacher and students were interviewed in a semi-structured way. The results showed that the teacher used three types of TBA: assessment of individual students on different topics, assessment of the entire class on the same topic, and assessment of individual students on the same topic. Due mainly to time constraints during class time and classroom management issues, the teacher preferred implementing the first two types of TBA. During the practice of the types, the teacher provided prompts or posed questions in ways that elicited responses which were short in length and easy. Although the third type of TBA was perceived by both the teacher and students as helping students enhance their EFL proficiency and was the most favored by the students, it was viewed by the teacher as having the potential of causing classroom management difficulties. Based on the findings, a number of implications are suggested.

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어린이집 장애영유아 통합보육에 관한 연구 동향 (Research Trends in Inclusive Child-care for Young Children with Disabilities)

  • 조귀희;문예은;이주연
    • 한국보육지원학회지
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    • 제16권1호
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    • pp.21-49
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    • 2020
  • Objective: The purpose of this study was to understand the research trends of inclusive child-care for young children with disabilities and suggest some implications for future research on inclusive child-care. Methods: There were a total 330 previous research papers about child-care inclusion, which means the practice of educating and caring for children aged 0 to 5 years old with disabilities alongside their typically developing peers at child-care centers. The studies were analyzed in terms of main research topic, subject, and research methods. Results: The major results of this study were as follow. First, a quantitative increase of the research since 2003 and a sharp increase of total research in this area since 2006 were found. Second, as a result of the main topic analysis, recognition and attitude research was the most frequently conducted, followed by the research about child-care programs, teacher and family support, and the effect of inclusive child-care. Third, more than half of the researches were done by teachers. Lastly, quantitative research methods were mainly used. Conclusion/Implications: Based on these findings, this study suggested to extend the research on inclusive child-care effect, intervention programs, non-disabled children, infants, and qualitative research.

Latent Dirichlet Allocation (LDA) 모델 기반의 인공지능(A.I.) 기술 관련 연구 활동 및 동향 분석 (Systemic Analysis of Research Activities and Trends Related to Artificial Intelligence(A.I.) Technology Based on Latent Dirichlet Allocation (LDA) Model)

  • 정명석;이주연
    • 한국산업정보학회논문지
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    • 제23권3호
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    • pp.87-95
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    • 2018
  • 최근 인공지능(Artificial Intelligence; A.I.)의 기술 발전과 함께 이에 대한 관심이 증가하고 있으며 관련 시장도 비약적으로 확대되고 있다. 아직은 초기단계이지만 2000년 이후 현재까지 계속 확장되고 있는 인공지능 기술 분야의 연구방향과 투자 분야에 대한 불확실성을 줄이는 것이 중요한 시점이다. 이러한 기술 변화와 시대적 요구에 따라서 본 연구는 빅데이터(Big Data) 분석방법 중 텍스트 마이닝(Text Mining)과 토픽모델링(Topic Modeling)을 활용하여 기술동향을 살펴보고, 핵심기술과 성장 가능성이 있는 연구의 향후 방향성을 제시하였다. 본 연구의 결과로부터 인공지능의 기술동향에 대한 이해를 바탕으로 향후 연구 방향에 대한 새로운 시사점을 도출할 수 있으리라 기대한다.

Electrical and Optical Characterizations of Metal/Semiconductor Contacts for Photovoltaic Applications

  • 김동욱
    • 한국재료학회:학술대회논문집
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    • 한국재료학회 2010년도 춘계학술발표대회
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    • pp.11.2-11.2
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    • 2010
  • Photovoltaic devices are promising candidates as affordable and large-area renewable energy sources, which can replace the fossil-fuel-based resources. Especially, thin film solar cells have attracted increasing research attention, since they have a great advantage of low production cost. From the physical point of view, the photovoltaic devices can provide us interesting questions, how to enhance the light absorption and the carrier collection efficiency. A lot of approaches would be possible to address these issues. We have focused on two major topics relevant to photovoltaic device physics; (1) light management using surface plasmons and (2) junction characterizations aiming at proper interface engineering. Regarding the first topic, we have investigated the influences of Ag under-layer morphology on optical properties of ZnO thin films. The experimental results suggested that coupling between the surface plasmon polaritons at the ZnO/Ag interface and excitons in ZnO should play important roles in reflectivity of the ZnO/Ag thin films, which are widely used back reflector structures in thin film solar cells. For the second topic, we have carried out scanning probe microscopy studies of Schottky junctions consisting of photovoltaic materials. Such a research is very helpful to understand the correlation between the defects (e.g., grain boundaries) and local electrical properties. We will introduce some of the recent experimental results and discuss the physical significance.

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국내 간호학생 대상 윤리관련 연구 동향 (Trends of the researches related to ethical topic in Korean nursing students)

  • 진은주;강현주
    • 한국간호교육학회지
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    • 제26권4호
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    • pp.402-411
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    • 2020
  • Purpose: The purpose of this study is to explore the trends of research related to ethical topics in Korean nursing students. Methods: A total of 131 articles that were published from 2000 to 2020 were analyzed and summarized according to publishing type, research design, subject, data analysis method, main research topic, research variables and instrument. Results: Most studies were journal articles (93.9%) and their most frequent research design was survey (75.7%). The research subjects covered all grades (35.1%) or they were divided between clinical nursing practicum (29.8%) or not (21.4%). The main research topics were biomedical ethics, ethical values, moral judgment and ethics education. Recently, ethical decision making and practical ability in nursing practice were reported. The instruments for measuring variables were limited and the same tools were used several times. Conclusion: Based on the findings of this study, it is suggested that the selection of various research topics and the application of research methods related to ethics for nursing students will continue in response to rapidly changing social phenomena in the future. In particular, it is necessary that research related to ethical and practical ability as well as ethical attitudes and perceptions of nursing students be actively carried out.