• Industrial Engineering and Management Systems
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• 제14권3호
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• pp.318-324
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• 2015

This paper proposes a dynamic short-term load forecasting method that utilizes a new sequential learning algorithm based on Relevance Vector Machine (RVM). The method performs general optimization of weights and hyperparameters using the current relevance vectors and newly arriving data. By doing so, the proposed algorithm is trained with the most recent data. Consequently, it extends the RVM algorithm to real-time and nonstationary learning processes. The results of application of the proposed algorithm to prediction of electrical loads indicate that its accuracy is comparable to that of existing nonparametric learning algorithms. Further, the proposed model reduces computational complexity.

• 한국게임학회 논문지
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• 제11권5호
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• pp.79-88
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• 2011

본 연구는 스마트폰으로 인식이 가능한 QR코드를 이용한 퀘스트 기반학습을 적용하여 교육 현장에서 학습방법으로서 가능성을 확인하는데 있다. 퀘스트 기반학습의 적용은 초등학교 3학년 32명을 대상으로 1개월간 총 8차시에 걸쳐 적용되었다. 학습활동 후 학습동기의 네 가지 하위요인에 대한 다변량분석을 하였다. 연구결과, 퀘스트 기반학습은 동기하위요인 중 주의집중과 자신감 요인의 동기를 촉진하는 긍정적인 결과를 보였다. 게임형태의 퀘스트 기반학습은 다양한 미디어를 활용한 학습방법으로 교육현장에서 학습자 참여를 촉진하고, 활동중심의 경험학습을 위한 학습방법으로 활용될 수 있을 것이다.

• 대한수학교육학회지:수학교육학연구
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• 제12권2호
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• pp.163-180
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• 2002

The purpose of this paper is to reconsider the meaning of mathematical literacy based on the investigation of the nature of mathematical knowledge communicated in university level mathematics classes. The analysis of classroom discourse has revealed three different kinds of mathematical knowledge circulated in mathematics class, which include 'factual mathematics', 'mathematical fantasy', and 'mathematical savior faire.' The fact that a mathematics teacher delivers diverse categories of mathematics knowledge suggests that the mathematical literacy is not confined to the development of technical competence. More specifically, the kinds of mathematical knowledge identified above tell that mathematical literacy developed through learning mathematics reflects the cultural norms and values of doing mathematics. This means that mathematical literacy is not merely involve with technical competence but rather with cultural competence. In this regard, this paper highlights the meaning of mathematical literacy as a cultural identity, which has been underestimated in the theory and practice of mathematics education dominated by technocracy of the twentieth century In particular, the notion of mathematical savior faire implies that teaching and teaming mathematics ultimately deals with a system of cultural meaning. Hence, through learning mathematics, a learner gets transformed as a whole person according to the cultural norms and values. In this regard, it is concluded that mathematical literacy can be considered as a necessary condition to become a competent member of mathematics community sharing cultural norms of doing mathematics as well as a repertoire of mathematical skills.

• 한국수학교육학회지시리즈A:수학교육
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• 제40권1호
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• pp.93-102
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• 2001

The world we live in is called the age of information. Thus communication and computers are doing the central role in it. When one studies the mathematical problem, the use of tools such as computers, calculators and technology is available for all students, and then students are actively engaged in reasoning, communicating, problem solving, and making connections with mathematics, between mathematics and other disciplines. The use of technology extends to include computer algebra systems, spreadsheets, dynamic geometry software and the Internet and help active learning of students by analyzing data and realizing mathematical models visually. In this paper, we explain concepts of transformation, linear transformation, congruence transformation and homothety, and introduce interesting, meaningful and visual models for teaching of a plane transformation geomeoy which are obtained by using Mathematica. Moreover, this study will show how to visualize linear transformation for student's better understanding in teaching a plane transformation geometry in classroom. New development of these kinds of teaching-learning methods can simulate student's curiosity about mathematics and their interest. Therefore these models will give teachers the active teaching and also give students the successful loaming for obtaining the concept of linear transformation.

• 한국초등과학교육학회지:초등과학교육
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• 제29권1호
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• pp.47-55
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• 2010

This study was to examine science learning motivation of primary students participating in science museum educational programs. The subject was 36 primary students in the programs in a science museum during a month. The questionnaire for this study consisted of items developed by us and some items from Motivated Strategies for Learning Questionnaire developed by Pintrich et al.(2001). The results included primary students' motivation of joining the programs in a science museum, their perceptions about the programs, and the effects of the programs on their science learning motivation. It seemed that the students had the opportunities of doing science activities in the museum on the recommendation of their family or teachers, especially their parents. And they were motivated to participate the programs with interests of science and they were interested in the activities in the programs. The statistics showed that the program have an positive effects on the students' self efficacies and values on science tasks. Based on this results, discussion and implications were presented.

• 4차산업연구
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• 제1권1호
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• pp.31-40
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• 2021

Purpose - According to the importance of business simulation learning as a new type of business learning tool, this study reviews the dimensions of business education and a brief history of business education simulation. At the end Capsim strategic management simulation program is introduce with its feature. Research design, data, and methodology - This study has been analyzed in a way that reviews at previous literature on simulation learning and looks at examples and features of Capsim simulation, online business simulation tools which has been used in the global market. Result - Capsim simulations are designed to offer focused opportunities for deep practice. That's why they are often more effective than passive tools such as textbooks, videos, or lectures. By the way, 'deep practice' is very different from 'ordinary practice'. After commuters who drive to school or work can accumulate thousands of hours of driving, but that doesn't make them expert drivers. The key to deep practice is self-awareness. That is, paying attention to what you are doing well and not so well. This is so important to learn that scientists use a specific term for it: 'metacognition', or thinking about the way you think and learn. Conclusion - The use of business simulation learning, such as Capsim, which is a given case, can create similar local systems by potentially engaging a large number of users in the virtual market. It could also be used as an individual to complete business training for students and those who are active in the business field of business.

• 대한수학교육학회지:수학교육학연구
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• 제13권2호
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• pp.143-157
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• 2003

본 논문은 수학 교사 학습과 전문성 신장에 관한 보다 종합적이고 체계적인 이해를 증진하기 위한 노력의 일환으로, 우선 교사 학습을 이해하기 위한 다양한 이론적 틀을 검토하고 교사 학습과 관련하여 지식과 교수 관행간의 관계를 조사하며 탐구 공동체를 중심으로 한 효율적인 전문성 신장에 관한 아이디어를 분석한다 이와 같은 이론적 분석에 터해 교사 학습과 이에 관련한 수학교실문화의 변화 과정을 연구하는 프로젝트를 간단히 소개하고 탐구 공동체의 운영, 교사의 관점에서 교수 관행을 기술하는 것, 공동체에서의 교사 학습을 분석하는 것 등 프로젝트를 수행하면서 부각되는 문제점에 대해 논의한다.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제25권1호
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• pp.221-243
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• 2011

본 연구는 예비초등 수학교사의 수업목표 공유 활동을 고찰하고 이를 통해 수업목표공유에 대한 시사점을 제공하기 위해서 이뤄졌다. 이를 위해서 G시에 소재한 교육대학교 3학년 학생들 중 4주간의 교생실습에 참여한 82명의 예비교사를 대상으로 수학수업을 비디오로 녹화하고 이를 전사하여 그 자료를 분석하였다. 구체적으로 수업목표를 설정하는 방법과 이를 학생들과 확인하고 공유하는 방법을 살펴봄으로써 이후 수학수업을 위한 시사점을 제공하려고 하였다.

• International Journal of Computer Science & Network Security
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• 제21권9호
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• pp.125-131
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• 2021

Detecting fraudulent insurance claims is difficult due to small and unbalanced data. Some research has been carried out to better cope with various types of fraudulent claims. Nowadays, technology for detecting fraudulent insurance claims has been increasingly utilized in insurance and technology fields, thanks to the use of artificial intelligence (AI) methods in addition to traditional statistical detection and rule-based methods. This study obtained meaningful results for a fraudulent insurance claim detection model based on machine learning (ML) and deep learning (DL) technologies, using fraudulent insurance claim data from previous research. In our search for a method to enhance the detection of fraudulent insurance claims, we investigated the reinforcement learning (RL) method. We examined how we could apply the RL method to the detection of fraudulent insurance claims. There are limited previous cases of applying the RL method. Thus, we first had to define the RL essential elements based on previous research on detecting anomalies. We applied the deep Q-network (DQN) and double deep Q-network (DDQN) in the learning fraudulent insurance claim detection model. By doing so, we confirmed that our model demonstrated better performance than previous machine learning models.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제20권1호
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• pp.31-38
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• 2016

WHAT we teach, and HOW students experience it, are the primary factors that shape students' understanding and beliefs of what mathematics is all about. Further, students pick up their sense of mathematics from their experience with it. We have seen the results of the approach to "break the subject into pieces and make students master it bit by bit. As an alternative, we strive to create a teaching environment in which students are DOING mathematics and thereby engender selected aspects of "mathematical culture" in the classroom. The vehicle for doing this is the so-called Japanese Open-ended approach to teaching mathematics. We will discuss three aspects of the open-ended approach - process open, end product open, formulating problems open - and the associated approach to assessing learning.