• Journal of The Korean Association For Science Education
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• v.36 no.2
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• pp.347-360
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• 2016

This study focused on the use of student assessment activities to investigate the impact on reflective thinking in Argument-based Inquiry. The participants of the study were 166 10th grade students (six classes). Over one semester, students participated in five ABI programs that we developed. The experimental group (84 students) was taught Argument-Based Inquiry with students' self and peer assessment activities. The comparative group (82 students) was taught without the activities. We analyzed students' reflective writing to investigate how the student assessment activities influenced the students' reflective thinking. We also used the interviews and surveys to examine the validity of student assessment activities. According to analysis of the reflective writing, the experimental group had a significantly higher mean score than the comparative group in the 3rd and 5th writing. The ratio of students who showed a metacognitive level of reflection with regard to analysis of inquiry process, understanding of learning, and change of thinking increased in both groups, but the experimental group's ratio was higher than the comparative group's. The result of analysis of the reflective practice showed that the ratio of the experimental group's students who reached the metacognitive level of reflection in their writing increased, while the comparative group's decreased. Therefore, we conclude that student assessment activities can create a learning environment that facilitates student participation, increases the students' engagement in the learning process, and can be used as a tool to scaffold learning.

• Proceedings of the Acoustical Society of Korea Conference
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• 1995.06a
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• pp.175-178
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• 1995

기존이 연속 출력 분포형 HMM은 시계열의 과도적 변화에 대하여 표현 능력이 부족하다는 단점이 있다. 이것을 보완하기 위해 본 논문에서는 음성의 동적 변화를 반영하기 위한 특징 파라메타로서 여러 개의 프레임을 결합하여 세그멘트를 구성하여 각각에 대해 한 개의 벡터를 만들었다. 이것을 그대로 이용하면 세그멘트의 프레임수에 대응하는 파라메타의 차원수가 증가하기 때문에 학습 데이터가 불충분한 경우 모델의 파라메타를 잘 추정할 수 없으므로 K-L 전개로서 파라메타의 차원을 압축하여 파라메타수를 감소시켰다. 인식실험은 한국어 단음절에 대하여 멜켑스트럼ㅇ르 K-L 전개로 압축한 벡터를 이용한 결과와 멜켑스트럼, 멜켑스트럼 선형회귀계수를 파라메타로 이용한 경우를 비교하였다. 실험결과 K-L 전개로 압축한 벡터만을 이용한 경우는 멜켑스트럼 + 선형회귀계수를 파라메타로 이용한 경우보다 인식율이 낮앗으나 멜켑스트럼 + K-L 전개로 압축한 경우와 거의 동등한 결과를 얻을 수 있었다.

• Knowledge Management Research
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• v.24 no.1
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• pp.1-29
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• 2023

The COVID-19 pandemic has accelerated digital transformation across all industries and daily life. Edutech is spreading in the education field, also bringing changes in university education. Non-face-to-face online-only classes at universities have spread after the COVID-19 pandemic physical distancing started. Online-only or real-time online classes showed diverse educational imitations. 'Metaverse' started to attract attention as a learning space and community activity support platform that may solve the limitations of online education and communication. It is time to prepare an introduction strategy for the actual application of education using metaverse. This study, first, by examining previous studies and cases of metaverse application, and second, establishing a metaverse introduction framework based on the technology lifecycle model and the innovation diffusion theory. Finally, we provide an introduction strategy in steps, a specialized introduction plan according to the main users is established and presented as a scenario. We expect that this study will provide the theoretical background of the new technology introduction and the spread of metaverse research. Also, we present an efficient introduction strategy, the basis for a service model, and a practical basis for the university's value-added strategy.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 1995.10b
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• pp.243-248
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• 1995

본 논문에서는 신경회로망의 학습능력을 이용하여 AC 모터의 속도제어에 이용된 기 존의 PI제어기의 문제점을 보완하고자 한다. 기존의 아날로그 PI제어기에서는 각 비례, 적분 파라메타를 개발자가 조정하여 고정하면 부하가 변동될 경우 적응성이 떨어지는 문제점을 안고 있었다. 본 논문에서 제시된 디지털 신경망제어기는 학습을 통해 새로운 환경에 적응 가능하다는 점에 가정하여 설계하고 성능을 비교 평가하였다. 본 논문에서 사용된 신경회로 망의 구조는 신경망중에서 가장 범용적으로 사용되는 다층 퍼셉트론 모델구조를 선택하였 다. 신경망 제어기장치로는 인텔 8097 마이크로 콘트롤러를 이용하였다.

• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.459-469
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• 2016

The purpose of this study was to identify relationships between metacogintion, problem solving process, and debriefing experience in S-PBL. Study participants were 102 nursing students who took the integrated S-PBL class in their last semester. Data were collected using a self-reported questionnaire and analyzed into descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and multiple regression. The highest subscale of debriefing experience was 'appropriate facilitator guidance' 3.78 (out of 5). Problem solving process and metacognition were positively correlated (r=0.704, p<.001). Metacognition was positively correlated with debriefing experience(r=0.197, p<.05), especially area of 'learning and making connections'(r=0.235, p<.05) whereas, there was no significant correlation between problem solving process and debriefing experience. Multiple regression (enter method) showed that gender and metacognition explained 51.2% of problem solving process. This study offers a rationale on simulation debriefing and further studies are needed to support effects of experiences of debriefing and factors on problem solving process and debriefing in nursing simulation.

• The Mathematical Education
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• v.58 no.4
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• pp.519-530
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• 2019

According to previous studies, meta-affect based on the interaction between cognitive and affective elements in mathematics learning activities maintains a close mechanical relationship with the learner's mathematical ability in a similar way to meta-cognition. In this study, in order to grasp these characteristics phenomenologically, small group problem-solving cases of 5th grade elementary mathematically gifted children were analyzed from a meta-affective perspective. As a result, the two types of problem-solving cases of mathematically gifted children were relatively frequent in the types of meta-affect in which cognitive element related to the cognitive characteristics of mathematically gifted children appeared first. Meta-affects were actively acted as the meta-function of evaluation and attitude types. In the case of successful problem-solving, it was largely biased by the meta-function of evaluation type. In the case of unsuccessful problem-solving, it was largely biased by the meta-function of the monitoring type. It could be seen that the cognitive and affective characteristics of mathematically gifted children appear in problem solving activities through meta-affective activities. In particular, it was found that the affective competence of the problem solver acted on problem-solving activities by meta-affect in the form of emotion or attitude. The meta-affecive characteristics of mathematically gifted children and their working principles will provide implications in terms of emotions and attitudes related to mathematics learning.

• Journal of Korea Entertainment Industry Association
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• v.13 no.6
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• pp.143-153
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• 2019

In order to save lives by recognizing the deteriorating changes of the patients, patient's assessment and reporting should be foundation, but this task is mainly delegated to nursing students or inexperienced nurses. A whisper game is a game in which the first person whisper selects a word, phrase or sentence and delivers it to the team member and finally confirms how many original message have changed during the transmit process. The purpose of this study was to develop a whisper game program to transmit the information of the children included in the DVD using in the pediatric advanced life support process. After four times of games, the experiences of 31 nursing students in the fourth grade were explored by analyzing the reflective journal. The results of the study showed three themes: learning motivation, metacognitive ability, and situated contextual learning. Repeated practice through a whisper game is expected to be widely used because it has been identified as a fresh and interesting learning method that enables nursing students to metacognize the process of assessing patients and conveying information in the contextual situation.

• Journal of The Korean Association For Science Education
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• v.30 no.6
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• pp.681-692
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• 2010

The purpose of this study is to analyze the teaching-learning effect of using self-regulated learning strategy on experimental classes for the 'kinetics' unit of 10th grade science textbook. Six classes were chosen and classified into two groups: the first group, the control group, was taught with the regular laboratory activity and the other group, the experimental group, was taught with the teaching-learning method using self-regulated learning program. After the laboratory activity for the unit using self-regulated learning program, the mean values of the scientific inquiry, scientific attitudes, and performance assessment of the experimental group were larger than those of the control group. There were significant differences between the two groups in the post-test. With the results of the post-test for the experimental group, the self-regulated learning program has significant relationships on scientific inquiry, scientific attitudes, and scientific achievements.

• Journal of Intelligence and Information Systems
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• v.29 no.1
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• pp.27-40
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• 2023

With the increase in the spread of smart devices and the impact of COVID-19, the consumption of media contents through smart devices has significantly increased. Along with this trend, the amount of media contents viewed through OTT platforms is increasing, that makes contents recommendations on these platforms more important. Previous contents-based recommendation researches have mostly utilized metadata that describes the characteristics of the contents, with a shortage of researches that utilize the contents' own descriptive metadata. In this paper, various text data including titles and synopses that describe the contents were used to recommend similar contents. KLUE-RoBERTa-large, a Korean language model with excellent performance, was used to train the model on the text data. A dataset of over 20,000 contents metadata including titles, synopses, composite genres, directors, actors, and hash tags information was used as training data. To enter the various text features into the language model, the features were concatenated using special tokens that indicate each feature. The test set was designed to promote the relative and objective nature of the model's similarity classification ability by using the three contents comparison method and applying multiple inspections to label the test set. Genres classification and hash tag classification prediction tasks were used to fine-tune the embeddings for the contents meta text data. As a result, the hash tag classification model showed an accuracy of over 90% based on the similarity test set, which was more than 9% better than the baseline language model. Through hash tag classification training, it was found that the language model's ability to classify similar contents was improved, which demonstrated the value of using a language model for the contents-based filtering.

• The Journal of the Korea Contents Association
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• v.18 no.11
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• pp.393-405
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• 2018

Problem-Based Learning (PBL) is a student-centered pedagogy that integrates nursing knowledge, skills, and attitudes into clinical nursing practice. This pilot aims to apply a PBL module on preschoolers' growth and development in the nursing curriculum. This quantitative study was performed to develop a PBL module following Dick and Carye's program development process (planning, development, application, and evaluation phases), and to evaluate its effects using structured questionnaires among sophomore nursing students. These students formed teams of four or five people each and spent 40 minutes participating in the PBL module. Data were analyzed using descriptive statistics, t-tests, and content analysis. Metacognition level increased significantly. There was no significant difference in team efficacy between pre-test and post-test. Post-test learning satisfaction was high. Students reported obtaining knowledge and problem-solving ability with respect to preschoolers' growth and development and were satisfied with teamwork. This finding offers fundamental knowledge concerning the application of a PBL module in nursing curricula.