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The Effect of Data Science Education on Elementary School Students' Computational Thinking: Focusing on Micro:bit's Sensor Function (데이터 과학 교육이 초등학생의 컴퓨팅 사고력에 미치는 효과: 마이크로비트의 센서 기능을 중심으로)

  • Kim, Bongchul;Kim, Jaejun;Moon, Woojong;Seo, Youngho;Kim, Jungah;OH, Jeongcheol;Kim, Yongmin;Kim, Jonghoon
    • Journal of The Korean Association of Information Education
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    • v.25 no.2
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    • pp.337-346
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    • 2021
  • Despite the increasing rate of use of data science in various fields of society, research on data science education programs is relatively inadequate. In this study, a data science education program for elementary school students was developed and its effectiveness was verified. We created a program that collects data using microbit, one of the physical computing tools, and developed an education program that performs the data science stage of analyzing the collected data to derive results. A study was conducted on 10 students enrolled in the Information Gifted Program at 00 University, and pre- and post-tests of computing thinking skills were conducted to verify the effectiveness. As a result, it was found that the data science education program developed through this study has a significant effect on improving the computational thinking of elementary school students.

An Analysis of Productivity and Efficiency in Indian Non-Life Insurance Companies: DEA-Based Approach (DEA를 이용한 인도 손해보험회사의 효율성 및 생산성 분석)

  • Seo, Daigyo;Kwon, Yongjae
    • Journal of the Korea Convergence Society
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    • v.13 no.3
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    • pp.217-225
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    • 2022
  • We analyzed efficiency and productivity of the Indian non-life insurance market affected by the COVID-19 pandemic from 2020. Using data envelopment analysis(DEA), we examined non-life insurance companies selling health insurance products in India from FY2013 to FY2019. We found the followings. First, average efficiency of the entire non-life insurance industry worsened in the beginning yet improved later. Second, analyzing the efficiency measures by group, we found that private insurance companies had the highest efficiency, followed by state-run insurance companies and pure health insurance companies. Third, average annual productivity growth rate of companies operating distance selling channels including telemarketing is higher than that of traditional face-to-face channels. During and after the COVID-19 pandemic, therefore, Indian non-life insurance companies should focus their resources and efforts on the development of distance selling channels when establishing business strategies. Besides, it would be interesting to extend our analysis to the post-coronavirus period and we leave this for future research.

A Study on the Model for Revitalizing Creative Village Through Culture : Focusing on Miryang Theater Village (문화를 통한 창조농촌 활성화 모델 연구 : 밀양연극촌 사례를 중심으로)

  • Chung, Suhee;Lee, Byungmin
    • 지역과문화
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    • v.7 no.1
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    • pp.27-57
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    • 2020
  • This study focuses on the culture-based revitalization strategy in creative rural areas. To this end, we first summarized the concept of creative village, which has been discussed in Japan and the West. Also, based on the relationship between them, we proposed a revitalization model of creative villages through the culture and arts. In this process, the concept and relationships were examined in detail through the example of Miryang Theater Village in Miryang. In addition, this study analyzed the problems of Miryang Theater Village and applied it to the concept of creative village and suggested an alternative. Through this process, we reconsidered the meaning and possibility of cultural arts in the creative village. And, it was confirmed that the cultural arts could be realized through the balance and organic linkage between the elements of creative villages in order to localize them in combination with the regional specificity of rural areas.

Development and application of supervised learning-centered machine learning education program using micro:bit (마이크로비트를 활용한 지도학습 중심의 머신러닝 교육 프로그램의 개발과 적용)

  • Lee, Hyunguk;Yoo, Inhwan
    • Journal of The Korean Association of Information Education
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    • v.25 no.6
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    • pp.995-1003
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    • 2021
  • As the need for artificial intelligence (AI) education, which will become the core of the upcoming intelligent information society rises, the national level is also focusing attention by including artificial intelligence-related content in the curriculum. In this study, the PASPA education program was presented to enhance students' creative problem-solving ability in the process of solving problems in daily life through supervised machine learning. And Micro:bit, a physical computing tool, was used to enhance the learning effect. The teaching and learning process applied to the PASPA education program consists of five steps: Problem Recoginition, Argument, Setting data standard, Programming, Application and evaluation. As a result of applying this educational program to students, it was confirmed that the creative problem-solving ability improved, and it was confirmed that there was a significant difference in knowledge and thinking in specific areas and critical and logical thinking in detailed areas.

Social perception of the Arduino lecture as seen in big data (빅데이터 분석을 통한 아두이노 강의에 대한 사회적 인식)

  • Lee, Eunsang
    • Journal of The Korean Association of Information Education
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    • v.25 no.6
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    • pp.935-945
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    • 2021
  • The purpose of this study is to analyze the social perception of Arduino lecture using big data analysis method. For this purpose, data from January 2012 to May 2021 were collected using the Textom website as a keyword searched for 'arduino + lecture' in blogs, cafes, and news channels of NAVER website. The collected data was refined using the Textom website, and text mining analysis and semantic network analysis were performed by opening the Textom website, Ucinet 6, and Netdraw programs. As a result of text mining analysis such as frequency analysis, TF-IDF analysis, and degree centrality it was confirmed that 'education' and 'coding' were the top keywords. As a result of CONCOR analysis for semantic network analysis, four clusters can be identified: 'Arduino-related education', 'Physical computing-related lecture', 'Arduino special lecture', and 'GUI programming'. Through this study, it was possible to confirm various meaningful social perceptions of the general public in relation to Arduino lecture on the Internet. The results of this study will be used as data that provides meaningful implications for instructors preparing for Arduino lectures, researchers studying the subject, and policy makers who establish software education or coding education and related policies.

The Effect of Human Capital on Life Satisfaction of the Elderly (노인의 인적자본이 생활만족도에 미치는 영향)

  • Lim, Ahn Na
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.5
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    • pp.193-199
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    • 2022
  • This study tried to understand the effect of human capital of the elderly on life satisfaction. Data from the 8th KReIS additional survey were used for the study subjects, and the number of subjects was 1987. Descriptive statistics, t-test, ANOVA, and regression analysis were performed using SPSS 20.0. As a result, gender, age, education level, economic activity status, generational composition, spouse presence, and exercise type showed significant differences in life satisfaction. Life satisfaction and health status showed the highest positive (+) correlation, and monthly average income and education level showed the highest negative (-) correlation. As for human capital that affects life satisfaction, life satisfaction was higher in women than men, employed rather than unemployed, married generations, health, average monthly income, and regular exercise.

A study on awareness of ideal body image, internalization of appearance, and anti-fat attitudes among middle-aged women (중년 여성의 이상적인 신체이미지 인식, 외모에 대한 내재화 및 항비만 태도에 대한 연구)

  • Lee, Hyun-Hwa;Lee, Minsun
    • The Research Journal of the Costume Culture
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    • v.30 no.4
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    • pp.563-578
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    • 2022
  • Society's emphasis on a thin body ideal may intensify an individual's negative perceptions of fatness. The purpose of the present study was to examine the relationship between sociocultural attitudes toward appearance (awareness and internalization of the female ideal) and anti-fat attitudes among middle-aged Korean women. In addition, the aim was to examine whether the body internalization of female ideals was a mediator in the proposed model. Participants included a sample of 264 middle-aged Korean women who completed a series of measures online. The following information was collected through online questionnaires: awareness and internalization of the female ideal, attitudes toward fat, body weight perception, and demographics. Data were analyzed using correlation analysis, descriptive analysis, factor analysis, and structural equation modeling. The measurement model and the structural model testing provided an acceptable fit to the data, and all proposed pathways in the research model were statistically significant. Awareness of the female ideal was significantly and positively associated with internalization, and it significantly and positively predicted both constructs of anti-fat attitudes. Additionally, awareness of the female ideal was significantly and positively indirectly associated with attitudes toward fat people-dislike and willpower mediated by internalization. Overall, these findings suggest that society's emphasis on female appearance and a thin body can ultimately result in significant stigmatization of overweight/obese individuals. This study emphasizes the importance of establishing a healthy appearance standard to reduce anti-fat prejudice.

Factors in economic activity participation of the elderly receiving the National Pension (국민연금 수급 노인의 경제활동 참여 요인)

  • Lim, Ahn Na
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.5
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    • pp.185-191
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    • 2022
  • This study tried to identify the factors that affect the participation of national pension beneficiaries in economic activities. Data from the 8th KReIs main survey were used for the study subjects, and the number of subjects was 919. Descriptive statistics, t-test, ANOVA, and regression analysis were performed using SPSS 20.0. As a result, gender, age, marital status, residential area, physical health status, and mental health status showed differences in economic activity participation. Participation in economic activities was correlated with gender, age, marital status, physical health status, and psychological health status. As factors influencing the participation in economic activities of national pension recipients, it was found that gender, age, education level, residential area, and physical health had an effect on economic activity participation.

A Study on Prediction of Heavy Rain Disaster Protection Characteristics Using ANN Technique (ANN기법을 이용한 호우재해 피해특성 예측 연구)

  • Soung Seok Song;Moo Jong Park
    • Proceedings of the Korea Water Resources Association Conference
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    • 2023.05a
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    • pp.338-338
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    • 2023
  • 최근 특정 지역에 짧은 시간동안 많은 강우가 내리는 국지성 집중호우가 빈번히 발생하고 있으나, 이에 대한 예측과 대비에도 불구하고 피해는 지속적으로 증가하고 있다. 지속적인 강우량 증가 추이로 시간최대 및 일최대 강우량 관측기록이 해마다 갱신되고, 도시, 하천 및 주요 홍수방어 시설의 설계용량을 초과하는 피해가 발생하고 있다. 다수의 인구가 거주하고 대규모 기반시설이 집중된 도시지역에서 발생하는 집중호우는 심각한 인명 및 재산피해로 이어질 수 있다. 따라서, 부처별 재난의 저감대책은 정량적인 피해규모의 피해금액 예측보다는 설계 빈도에 대한 규모의 크기로 대책을 마련하고 있다. 국내에서는 풍수해 피해를 저감시키기 위해 개발에 따르는 재해영향요인을 개발 사업 시행 이전에 예측·분석하고 적절한 저감대책안을 수립·시행하고 있으나 설계빈도에 대한 규모일 뿐 정량적인 저감대책으로 예방되는 피해금액은 알 수 없다. 본 연구에서는 재해연보를 기반으로 호우재해(호우, 태풍)에 대한 시군구-재해기간의 피해데이터를 1999년부터 2019년까지 총 20년의 빅데이터와 전국 68개 강우관측소를 대상으로 총 20년(1999년 ~ 2019년)의 강우자료를 구축하였다. 머신러닝의 학습별 알고리즘을 조사하여 호우재해 피해데이터의 적용성이 높고 다양한 분야에 적용이 가능한 Neural networks의 분석기술인 ANN기법을 선정하였다 피해데이터의 재해발생기간별 총강우량, 일최대강우량, 총피해금액에 대하여 1999년 ~ 2018년을 학습하고 2019년에 대하여 강우특성과 피해특성의 분석하였다. 분석결과 Neural Networks의 지도학습은 총 6,902개 중 2019년을 제외한 6,414개를 학습하였으며 분석 타깃은 호우재해의 피해규모를 분석할 수 있는 총강우량, 일최대강우량, 총피해금액에 대하여 은닉노드 5개씩 2계층에 대하여 분석하였다.

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Critical Approach and Progressive Perspective on Sports Event Hosting (스포츠이벤트 개최의 비판적 접근과 미래적 응시)

  • Kim, Young-Kab
    • 한국체육학회지인문사회과학편
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    • v.51 no.5
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    • pp.51-61
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    • 2012
  • The purpose of this study is to survey fundamental limitations and problems of sports event hosting from the critical point of view and to set future-oriented perspective. The reason and legitimacy for hosting sports event have come from pragmatism based on ideological logic behind politics. Thus, the flow of advanced studies was mostly limited to the category of efficiency. However, there is fundamental limitation in sports even hosting in terms of its financial expectation and efficiency. Critical approach will contribute to minimizing side effects caused from blind acceptance through awakening dispassionate and realistic judgment. In addition, rational selection of sports even hosting can be achieved through interconnection of sports culturism's directivity as an advanced sense of sports culture, integrated perspective that penetrates problems of growth and distribution and local governance as apolitical philosophy, and of course, through concentration of energy.