• Title/Summary/Keyword: self-learning

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Reinforcement Learning with Clustering for Function Approximation and Rule Extraction (함수근사와 규칙추출을 위한 클러스터링을 이용한 강화학습)

  • 이영아;홍석미;정태충
    • Journal of KIISE:Software and Applications
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    • v.30 no.11
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    • pp.1054-1061
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    • 2003
  • Q-Learning, a representative algorithm of reinforcement learning, experiences repeatedly until estimation values about all state-action pairs of state space converge and achieve optimal policies. When the state space is high dimensional or continuous, complex reinforcement learning tasks involve very large state space and suffer from storing all individual state values in a single table. We introduce Q-Map that is new function approximation method to get classified policies. As an agent learns on-line, Q-Map groups states of similar situations and adapts to new experiences repeatedly. State-action pairs necessary for fine control are treated in the form of rule. As a result of experiment in maze environment and mountain car problem, we can achieve classified knowledge and extract easily rules from Q-Map

Influence of Premenstrual Syndrome and Stress Response on Learning Flow in Nursing Students (간호대학생의 월경전증후군과 스트레스반응이 학습몰입도에 미치는 영향)

  • Shim, Chung-sin
    • The Journal of the Convergence on Culture Technology
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    • v.5 no.2
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    • pp.83-91
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    • 2019
  • The purpose of this study was to investigate the relationship among the variables and the influence of premenstrual syndrome and stress response on the learning flow of nursing students. Method : The participants were 162 nursing students in K city, who were surveyed between June 1 and June 10, 2018, using self-report questionnaire. Result: There were positive correlation between premenstrual syndrome of participants and stress response(r=.389, p<.001). There were negative correlation between premenstrual syndrome and learning flow(r=-1.93, p<.014), between stress response and learning flow(r=-.216 p<.001). The variables for learning flow where stress response(${\beta}=-.314$, p<.001) and Psychological change of menstruation(${\beta}=-.358$, p<.001), with a coefficient of determination($R^2$) of 30.3%. The result of this study will be useful in preparing basic date for improvement of the learning flow of the nursing students and it will be necessary to develop educational programs and strategies related with the premenstrual syndrome and stress response disposition.

The influence of experienced violence and the clinical learning environment on vocational identity in nursing students (간호대학생의 임상실습 중 폭력경험과 임상학습환경이 직업정체성에 미치는 영향)

  • Lee, Mira;Park, Hee Ok;Lee, Insook
    • The Journal of Korean Academic Society of Nursing Education
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    • v.27 no.3
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    • pp.321-332
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    • 2021
  • Purpose: The purpose of this study is to determine the influence of the learning environment on nursing students' clinical practice education and the violence experienced during clinical practice on vocational identity. Methods: The design of the study was a descriptive survey, and data were collected from November 15 to November 27, 2019. The data of the study were obtained from 515 nursing students attending three universities using self-administered questionnaires. Data were analyzed using the SPSS 25.0 program. Results: For the experience of violence, verbal violence (98.3%) was the type most commonly experienced, and patients (97.7%) were the most frequent perpetrators. The clinical learning environment was perceived differently according to gender, personality, interpersonal relationship, satisfaction with nursing, clinical practice satisfaction, violence prevention education, the need for violence prevention education, sexual violence experiences, and violent perpetrators. The most influential factor on vocational identity was satisfaction with the nursing major (β=0.24, p<.001), followed by extroverted personality (β=0.18, p<.001), clinical learning environment (β=0.15, p=.001), satisfaction with clinical practice (β=0.15, p=.002), and the experience of violence by patients (β=-0.10, p=.016), which together explained 24.1% of the variance in the model. Conclusion: It is necessary to make efforts to ensure that students do not experience violence during clinical practice, to maintain a close cooperative relationship between university and clinical institutions to improve the learning environment for clinical practice, and to make the clinical field an educational learning environment.

Development of a Sign Language Learning Assistance System using Mediapipe for Sign Language Education of Deaf-Mutility (청각장애인의 수어 교육을 위한 MediaPipe 활용 수어 학습 보조 시스템 개발)

  • Kim, Jin-Young;Sim, Hyun
    • The Journal of the Korea institute of electronic communication sciences
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    • v.16 no.6
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    • pp.1355-1362
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    • 2021
  • Recently, not only congenital hearing impairment, but also the number of people with hearing impairment due to acquired factors is increasing. The environment in which sign language can be learned is poor. Therefore, this study intends to present a sign language (sign language number/sign language text) evaluation system as a sign language learning assistance tool for sign language learners. Therefore, in this paper, sign language is captured as an image using OpenCV and Convolutional Neural Network (CNN). In addition, we study a system that recognizes sign language behavior using MediaPipe, converts the meaning of sign language into text-type data, and provides it to users. Through this, self-directed learning is possible so that learners who learn sign language can judge whether they are correct dez. Therefore, we develop a sign language learning assistance system that helps us learn sign language. The purpose is to propose a sign language learning assistance system as a way to support sign language learning, the main language of communication for the hearing impaired.

Implementation of Chatbot Models for Coding Education (코딩 교육을 위한 챗봇 모델 구현)

  • Chae-eun, Ahn;Hyun-in, Jeon;Hee-Il, Hahn
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.23 no.1
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    • pp.29-35
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    • 2023
  • In this paper, we propose a SW-EDU bot, a chatbot learning model for coding education by using a chatbot system. The same scenario-based models are created on the basis of Dialogflow and Kakao i Open Builder, which are representative chatbot builders. And then a SW-EDU bot is designed and implemented by selecting the builder more appropriate to our purpose. The implemented chatbot system aims to learn effective learning methods while encouraging self-direction of users by providing learning type selection, concept learning, and problem solving by difficulty level. In order to compare the usability of chatbot builders, five indicators are selected, and based on these, a builder with a comparative advantage is selected, and SW-EDU bot is implemented based on these. Through usability evaluation, we analyze the feasibility of SW-EDU bot as a learning support tool and confirm the possibility of using it as a new coding education learning tool.

Current status of interprofessional education learning activities in wards provided by tertiary hospitals and secondary general hospitals and barriers

  • Kang, Joonsung;Sin, Hye Yeon
    • Korean Journal of Clinical Pharmacy
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    • v.32 no.2
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    • pp.106-115
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    • 2022
  • Background: The World Health Organization (WHO) has focused on the need for interprofessional education (IPE) to improve interprofessional collaboration competency and patient health outcomes. Accordingly, most European and North American medical colleges have established IPE for students. However, IPE learning activity in medical wards for the clinical experience of pharmacy students has not been fully reviewed in Korea. Therefore, this study aims to examine the current status of IPE learning activities in wards at tertiary and secondary hospitals in order to identify ways to improve the program. Methods: The official document of cooperation consists of six self-administered questions regarding IPE learning activities in wards. The preceptor's response in each hospital was evaluated. Results: Of the 22 hospitals, 9 tertiary hospitals and 12 secondary general hospitals responded. For the introductory pharmacy practice experience (IPPE), participating in intensive care (IC) was provided at one secondary general hospital (8.3%) and no tertiary hospital. Ward rounds with medical staff members were provided at two tertiary hospitals (22.2%) and one (8.3%) secondary general hospital. A major barrier to executing IPE was lack of rewards and incentives for the faculty and preceptors who participated in the program. Conclusion: In both tertiary hospitals and secondary general hospitals, pharmacy students have limited exposure to IPE learning activities in wards at hospital, and IPPE at most hospitals was carried out in pharmacy settings only. This study suggests that it is necessary for the hospitals to improve and support IPE learning activities in wards in order to improve learners' competency.

A Case Study of Teaching 'Machine Learning' for Convergence Major Students in a Non-Face-to-Face Environment (비대면 환경에서의 '기계학습' 지도 사례 연구 : 융합전공 학생들을 중심으로)

  • Lee, Sungock;Lee, Jieun;Song, Hyunok;Kim, Hangil;Jung, Hoekyung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2022.05a
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    • pp.336-339
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    • 2022
  • In this study, we examine the cases of instructors who conducted subject management by understanding the learning patterns of convergence major students taking programming courses Therefore, we intend to find implications for the operation of SW curriculum for convergence majors in the future. In the programming class of the convergence major, students of various grades and majors take the course, and a survey was conducted to understand their learning patterns in a non-face-to-face environment. The instructor studied whether it would be possible to induce learners' participation in class even when face-to-face communication was not possible, and tried to operate the class by understanding the learning propensity of the learners. As there are many students who have maintained successful experiences in self-directed learning amid COVID-19, weekly assignments were set so that they could solve their own problems independently, and almost all students submitted assignments. This study is meaningful in that it studied students' learning patterns, task performance, and programming achievement by operating 'Machine Learning' subject to students of the convergence major in a non-face-to-face situation due to COVID-19.

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A Metaphor Analysis on the Learning-Centered Class of Pre-Service Secondary Physical Education Teachers (중등 예비체육교사의 배움중심수업에 대한 메타포 분석)

  • Seung-Yong Kim
    • Journal of Industrial Convergence
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    • v.21 no.8
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    • pp.87-96
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    • 2023
  • The purpose of this study was to investigate the meanings that pre-service secondary physical education teachers attach to learning-centered teaching through metaphor analysis and to examine their perceptions of the application of learning-centered teaching in physical education. In order to achieve the purpose of the study, a survey was conducted to express the perception of learning-centered teaching in metaphors. The data analysis was processed through the process of coding, metaphor classification, determining the unit of analysis, and categorisation of the sample according to the metaphor analysis method. As a result, four major categories of educational needs, educational goals and contents, teaching and learning methods and evaluation, teacher education and roles, and eight content types were derived: lessons for self-actualisation, lessons for preparing for future society, lessons that foster creativity, open and diverse lessons, lessons that stimulate curiosity and interest, lessons that are suitable for individual development and characteristics, lessons that are burdensome to implement, and lessons that require teacher creativity and originality. The results of this study provide implications for the necessity and direction of learning-centered class.

AI-Based Intelligent CCTV Detection Performance Improvement (AI 기반 지능형 CCTV 이상행위 탐지 성능 개선 방안)

  • Dongju Ryu;Kim Seung Hee
    • Convergence Security Journal
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    • v.23 no.5
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    • pp.117-123
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    • 2023
  • Recently, as the demand for Generative Artificial Intelligence (AI) and artificial intelligence has increased, the seriousness of misuse and abuse has emerged. However, intelligent CCTV, which maximizes detection of abnormal behavior, is of great help to prevent crime in the military and police. AI performs learning as taught by humans and then proceeds with self-learning. Since AI makes judgments according to the learned results, it is necessary to clearly understand the characteristics of learning. However, it is often difficult to visually judge strange and abnormal behaviors that are ambiguous even for humans to judge. It is very difficult to learn this with the eyes of artificial intelligence, and the result of learning is very many False Positive, False Negative, and True Negative. In response, this paper presented standards and methods for clarifying the learning of AI's strange and abnormal behaviors, and presented learning measures to maximize the judgment ability of intelligent CCTV's False Positive, False Negative, and True Negative. Through this paper, it is expected that the artificial intelligence engine performance of intelligent CCTV currently in use can be maximized, and the ratio of False Positive and False Negative can be minimized..

Effects of a Standardized Patient Simulation Program for Nursing Students on Nursing Competence, Communication Skill, Self-efficacy and Critical Thinking Ability for Blood Transfusion (표준화환자 시뮬레이션 실습교육이 간호학생의 수혈 간호수행능력, 의사소통능력, 자기효능감과 비판적 사고능력에 미치는 효과)

  • Joo, Ga Eul;Sohng, Kyeong-Yae;Kim, Hee-Ju
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.22 no.1
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    • pp.49-58
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    • 2015
  • Purpose: This study was conducted to identify the effects of a standardized patients (SP) simulation program for nursing students on nursing competence, communication skill, self-efficacy and critical thinking ability for blood transfusion. Methods: A nonequivalent control group non-synchronized design study was used and included as participants 96 junior nursing students at C University. The SP group (n=48) participated in the teaching class using a SP, while the control group (n=48) received conventional practice education. The outcome measurements were nursing competence, communication skill, self-efficacy, and critical thinking ability for transfusion. Results: Nursing competence, communication skill, self-efficacy, and critical thinking ability improved for students in both groups after training ($2.01{\leq}t{\leq}13.03$, p<.05). Self-efficacy showed greater improvement in students in the SP group compared to the control group (t=3.36, p<.001). Conclusion: SP simulation practice may be more effective in enhancing self-efficacy than that of conventional practice education. Whether self-efficacy will contribute to enhancing learning motivation for nursing students needs further examination.