• 제목/요약/키워드: field learning

검색결과 2,970건 처리시간 0.035초

Online Multi-Task Learning and Wearable Biosensor-based Detection of Multiple Seniors' Stress in Daily Interaction with the Urban Environment

  • Lee, Gaang;Jebelli, Houtan;Lee, SangHyun
    • 국제학술발표논문집
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    • The 8th International Conference on Construction Engineering and Project Management
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    • pp.387-396
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    • 2020
  • Wearable biosensors have the potential to non-invasively and continuously monitor seniors' stress in their daily interaction with the urban environment, thereby enabling to address the stress and ultimately advance their outdoor mobility. However, current wearable biosensor-based stress detection methods have several drawbacks in field application due to their dependence on batch-learning algorithms. First, these methods train a single classifier, which might not account for multiple subjects' different physiological reactivity to stress. Second, they require a great deal of computational power to store and reuse all previous data for updating the signle classifier. To address this issue, we tested the feasibility of online multi-task learning (OMTL) algorithms to identify multiple seniors' stress from electrodermal activity (EDA) collected by a wristband-type biosensor in a daily trip setting. As a result, OMTL algorithms showed the higher test accuracy (75.7%, 76.2%, and 71.2%) than a batch-learning algorithm (64.8%). This finding demonstrates that the OMTL algorithms can strengthen the field applicability of the wearable biosensor-based stress detection, thereby contributing to better understanding the seniors' stress in the urban environment and ultimately advancing their mobility.

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고등학생의 진로체험 유형과 부모지지가 진로성숙도에 미치는 영향 (Effect of Career Experiential Learning and Parental Support on Career Maturity of High School Students)

  • 정주원
    • 한국가정과교육학회지
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    • 제28권4호
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    • pp.139-158
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    • 2016
  • 본 연구는 고등학생 진로성숙도를 함양하기 위하여 진로체험 유형과 부모지지가 진로성숙도 하위영역인 태도적 차원(진로계획성, 직업태도, 진로독립성)과 능력적 차원(자기이해, 진로탐색)에 미치는 영향을 살펴보았다. 이를 위해 최근 1년 이내에 진로체험 프로그램에 참여한 경험이 있는 고등학교 1~3학년을 대상으로 온라인을 통해 자료를 수집하였으며, 최종 290명을 분석에 사용하였다. 주요 연구결과는 다음과 같다. 첫째, 진로성숙도의 태도적 차원인 진로계획성은 대화형, 견학 방문형 경험을 한 경우, 직업태도과 진로독립성 수준은 대화형, 견학 방문형, 현장체험형 경험을 한 경우 높게 나타났다. 능력적 차원인 자기이해와 진로탐색은 이론형, 대화형, 견학 방문형 경험이 있는 경우 높게 나타났다. 둘째, 진로관련 부모지지인 정서적, 정보적, 물질적 지지와 진로성숙도의 모든 하위영역은 유의미한 정적 상관관계를 보였다. 셋째, 진로체험 유형이 진로성숙도에 미치는 영향력을 살펴본 결과, 대화형과 견학 방문형은 태도적 차원(진로계획성, 직업태도, 진로독립성)과 능력적 차원(자기이해, 진로탐색) 모두 진로성숙에 유의한 영향을 끼치는 것으로 나타났으며, 이론형은 능력적 차원에 영향을 끼치는 요인으로 나타났다. 다음으로 부모지지를 투입하여 체험유형과 부모지지가 진로성숙에 미치는 상대적 영향력을 살펴본 결과, 정서적 지지가 진로탐색을 제외한 모든 진로성숙의 하위영역에 영향을 끼치는 것으로 나타났다. 정보적 지지는 진로계획성, 진로독립성, 진로탐색에 물질적 지지는 직업태도, 자기이해, 진로탐색에 영향을 끼치는 것으로 나타났다. 본 연구는 고등학생 진로성숙도의 하위 역량을 함양하기 위한 진로체험 프로그램의 핵심 구성과 실행에 의미 있는 정보적 역할을 하며, 부모지지와 연계한 실천적 측면을 강조하는 진로교육 운영지침에 유용한 자료로 제공될 것이다.

Investigation of Learner Recognition to Introduction of Mobile Learning: A Study Targeting Officers at the Ministry of Health and Welfare in Korea

  • Jin, Sunmi;Hyun, Seunghye
    • International Journal of Contents
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    • 제10권3호
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    • pp.26-34
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    • 2014
  • Mobile learning is a practical learning method for busy adult learners because the mobility of digital devices can overcome the drawbacks of e-learning. However, research is strongly lacking in the theoretical exploration of mobile learning effects and functions and its empirical research. Moreover, the research of learning characteristics and learners' requirements must be considered before applying and disseminating mobile learning into the educational field. To address this shortcoming, this study conducted an online survey with 1,542 officers of the Ministry of Health and Welfare Affairs (MHWA) regarding learner recognition to mobile learning. The analysis of learners' attitudes toward mobile learning, based on age and position, indicated that subordinate workers appeared to place more value on mobile learning. Many participants preferred mobile learning because of its mobility and the effectiveness of anywhere and anytime. However, some participants continue to misunderstand mobile learning and its necessity. Therefore, consideration of learning effectiveness, the form of the content, and learner-centered learning must be reviewed in advance. This study could lead to practical implications of mobile learning.

가상현장교육을 통한 능동적 체험 학습의 도입과 활용 (Virtual Field Education(VFE) for Active E-Business Learning)

  • 김범수
    • 한국전자거래학회:학술대회논문집
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    • 한국전자거래학회 2003년도 종합학술대회 논문집
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    • pp.167-171
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    • 2003
  • 목차 ◎연구의 배경 ㆍ전통적인 교육과 온라인 교육 ◎효과적 온라인 교육:능동적 체험 학습 ◎가상현장교육(Virtual Field Education) ㆍ가상현장교육 환경 및 구성 ㆍ지식의 전달 및 학습 과정 ◎가상현장실험(Virtual Field Experiments) ◎정보통신 교육과 연구의 융합(중략)

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카트-폴 균형 문제를 위한 실시간 강화 학습 (On-line Reinforcement Learning for Cart-pole Balancing Problem)

  • 김병천;이창훈
    • 한국인터넷방송통신학회논문지
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    • 제10권4호
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    • pp.157-162
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    • 2010
  • Cart-pole 균형 문제는 유전자 알고리즘, 인공신경망, 강화학습 등을 이용한 제어 전략 분야의 표준 문제이다. 본 논문에서는 cart-pole 균형문제를 해결하기 위해 실시간 강화 학습을 이용한 접근 방법을 제안하였다. 본 논문의 목적은 cart-pole 균형 문제에서 OREL 학습 시스템의 학습 방법을 분석하는데 있다. 실험을 통해, 본 논문에서 제안한 OREL 학습 방법은 Q-학습보다 최적 값 함수에 더 빠르게 접근함을 알 수 있었다.

u-Learning을 위한 LCMS 시스템 연구 (A Study on the LCMS Model for u-Learning)

  • 우영환;정진욱;김석수
    • 융합보안논문지
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    • 제5권2호
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    • pp.37-42
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    • 2005
  • 정보통신기술의 발전과 지식정보 사회의 등장은 교육 및 훈련분야에도 거대한 변화를 가져왔다. 특히, 유비쿼터스 시대가 다가옴에 따라 e-Learning 또한 u-Learning으로 진화하려 하고 있다. 이는 지금까지와는 또 다른 형태로 교수-학습자 환경이 변화함을 말한다. 본 논문에서는 교육환경의 발전에 따른 다양한 학습 콘텐츠의 관리 방법을 제안, 구현하고 운영플랫폼 분석을 통하여 콘텐츠의 활용을 극대화 할 수 있는 LCMS를 제안하였다.

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수학 교과에서 메타정의를 활성화하는 교수·학습 모델 개발 (A Study on the Development of a Mathematics Teaching and Learning Model for Meta-Affects Activation)

  • 손복은
    • East Asian mathematical journal
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    • 제38권4호
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    • pp.497-516
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    • 2022
  • In this study, we tried to devise a method to activate meta-affect in the aspect of supporting mathematics teaching and learning according to the need to find specific strategies and teaching and learning methods to activate learners' meta-affect in mathematics subjects, which are highly influenced by psychological factors. To this end, the definitional and conceptual elements of meta-affect which are the basis of this study, were identified from previous studies. Reflecting these factors, a teaching and learning model that activates meta-affect was devised, and a meta-affect activation strategy applied in the model was constructed. The mathematics teaching and learning model that activates meta-affect developed in this study was refined by verifying its suitability and convenience in the field through expert advice and application of actual mathematics classes. The developed model is meaningful in that it proposed a variety of practical teaching and learning methods that activate the meta-affect of learners in a mathematical learning situation.

Sentiment Analysis to Evaluate Different Deep Learning Approaches

  • Sheikh Muhammad Saqib ;Tariq Naeem
    • International Journal of Computer Science & Network Security
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    • 제23권11호
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    • pp.83-92
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    • 2023
  • The majority of product users rely on the reviews that are posted on the appropriate website. Both users and the product's manufacturer could benefit from these reviews. Daily, thousands of reviews are submitted; how is it possible to read them all? Sentiment analysis has become a critical field of research as posting reviews become more and more common. Machine learning techniques that are supervised, unsupervised, and semi-supervised have worked very hard to harvest this data. The complicated and technological area of feature engineering falls within machine learning. Using deep learning, this tedious process may be completed automatically. Numerous studies have been conducted on deep learning models like LSTM, CNN, RNN, and GRU. Each model has employed a certain type of data, such as CNN for pictures and LSTM for language translation, etc. According to experimental results utilizing a publicly accessible dataset with reviews for all of the models, both positive and negative, and CNN, the best model for the dataset was identified in comparison to the other models, with an accuracy rate of 81%.

치위생과 학습자의 문제해결능력, 자기주도적 학습능력, 의사소통능력의 향상을 위한 문제중심학습 패키지 개발 (Development of PBL packages for the improvement of the problem-solving ability, self-directed learning capability and communicative competence of dental hygiene students)

  • 정영란;이우숙;조덕주
    • 한국치위생학회지
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    • 제10권1호
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    • pp.33-49
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    • 2010
  • Obiectives : The purpose of this study was to develop PBL packages geared toward improving the problem-solving abilities, self-directed learning capabilities and communicative competency of dental hygienists, which were all required for dental hygienists to have in the dental field. Methods : After three PBL packages for a semester of oral health education were developed, the PBL packages were evaluated by an expert to determine what improvements should be made. Results : The findings of the study were as follows. The three PBL packages were based on real clinical situations and designed to have a different degree of difficulty and provide problems in the form of scenario for learners to solve in a self-directed manner. When the packages were assessed by an expert, the packages were expected to make a contribution to the improvement of the three different abilities on which this study focused, and the packages were found to be appropriate in general in terms of learning content and field applicability, though they needed some modifications. Thus, this study attempted to develop PBL packages and let an expert assess the packages in order to give some suggestions about the development of PBL packages. The packages developed in this study are expected to help boost the problem-solving abilities, self-directed learning capabilities and communicative competency of dental hygienists, which should all be possessed by dental hygienists in the dental field. Moreover, the packages were found to be conducive to the introduction of PBL in the field of dental hygiene. Conclusions : To ensure the successful application of the packages, dental hygiene students should be provided with the packages in situations similar to real clinical situations, and they should have an opportunity to practice dental hygiene duties.

수학 학습에 대한 긍정적 태도 신장을 위한 매쓰투어(Math-Tour) 개발 및 효과 (Development and Effect of Math-Tour to improve Mathematics Study Attitude)

  • 허선;오홍식
    • 한국수학교육학회지시리즈E:수학교육논문집
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    • 제34권4호
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    • pp.465-484
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    • 2020
  • 본 연구에서는 수학 현장체험학습 프로그램이 학생들의 수학 학습에 대한 태도에 미치는 영향을 밝히고자 하였다. 이를 위해 2019년 제주목 관아에서 학생들이 직접 걸어 다니면서 체험할 수 있는 제주목 관아 매쓰투어(Math-Tour) 프로그램을 개발하였다. 프로그램에는 제주목 관아에서 볼 수 있는 여러 자연물과 인공물을 이용한 수학 문제를 제시하였다. 이후 제주시 A 중학교 학생들을 대상으로 체험하도록 하여 그 효과를 알아보았다. 매쓰투어에 참여한 학생들을 대상으로 사전·사후 수학 학습 태도 검사와 인터뷰를 실시하고, 소감문을 작성하도록 하여 이를 분석했다. 분석 결과, 수학 현장체험학습 프로그램인 제주목 관아 매쓰투어가 학생들의 수학 학습 태도 신장에 통계적으로 유의미한 영향을 미친다는 결론을 얻을 수 있었다. 이는 수학 현장학습 프로그램이 학생들의 수학 학습 태도를 개선하는데 유의미한 방법으로 활용될 수 있다는 것을 시사해 준다.