• Title/Summary/Keyword: self-learning

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Robust Control of AM1 Robot Using PSD Sensor and Back Propagation Algorithm (PSD 센서 및 Back Propagation 알고리즘을 이용한 AM1 로봇의 견질 제어)

  • Jung, Dong-Yean;Han, Sung-Hyun
    • Journal of the Korean Society of Industry Convergence
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    • v.7 no.2
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    • pp.167-172
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    • 2004
  • Neural networks are used in the framework of sensor based tracking control of robot manipulators. They learn by practice movements the relationship between PSD(an analog Position Sensitive Detector) sensor readings for target positions and the joint commands to reach them. Using this configuration, the system can track or follow a moving or stationary object in real time. Furthermore, an efficient neural network architecture has been developed for real time learning. This network uses multiple sets of simple back propagation networks one of which is selected according to which division (Corresponding to a cluster of the self-organizing feature map) in data space the current input data belongs to. This lends itself to a very training and processing implementation required for real time control.

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An Analysis of the Mathematical Tasks in the Korean Seventh Grade Mathematics Textbooks and Workbook

  • Cho, Hyungmi;Kwon, Oh Nam
    • Research in Mathematical Education
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    • v.16 no.4
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    • pp.245-263
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    • 2012
  • The Korean mathematical curriculum has been changed three times during the resent five years. It led to changes in textbook system. In the 2007 revised mathematics curriculum, workbook was developed focusing on student's self-oriented learning, effective practice in differentiated classroom, and mathematics problem solving considering individual difference. This paper examines the characteristics of the tasks and the way the tasks are organized in the textbooks and the workbook in accordance with the 2007 revised mathematics curriculum; comparing with the function section before and after the amendment. Researchers examine whether the textbook and workbook were accomplished the purpose with "cognitive expectation", "level of cognitive demand", "and "response types". Researchers revised framework of [Son, J. W. & Senk, S. (2010). How reform curricula in the USA and Korea present multiplication and division of fraction. Educ. Stud. Math 74(2), 117-142] to make them suitable for the function section at the seventh grade.

Recognition of Clinical Practice and Suggestion of Practical Framework (임상실기의 재인식과 실기모델 제안)

  • Kim, Tae-Yoon;Kim, Sang-Su
    • Journal of Korean Physical Therapy Science
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    • v.17 no.3_4
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    • pp.11-21
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    • 2010
  • Purpose: To Provide 3 main principles that needs to be changed for clinical practice and suggest the frame of clinical practice in accordance with the change of generation. Methods: We reviewed literatures related with Clinical Practice. Results: The purpose of physical therapy is to maintain the client's motor and functional ability and enhance the quality of lifestyle. To carry out the principles of clinical practice effectively all the physical therapist must be able to comprehend as follows. First, physical therapy can be different generation by generation. Second, technical terminology must be used when communicate. Third, There are certain ways of process in physical therapy. Conclusion: Physical therapist that is heath care professional occupation in health related, is in need of constant endeavor. Also physical therapist must train oneself self-directed learning.

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Intelligent Approach for Android Malware Detection

  • Abdulla, Shubair;Altaher, Altyeb
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.9 no.8
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    • pp.2964-2983
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    • 2015
  • As the Android operating system has become a key target for malware authors, Android protection has become a thriving research area. Beside the proved importance of system permissions for malware analysis, there is a lot of overlapping in permissions between malware apps and goodware apps. The exploitation of them effectively in malware detection is still an open issue. In this paper, to investigate the feasibility of neuro-fuzzy techniques to Android protection based on system permissions, we introduce a self-adaptive neuro-fuzzy inference system to classify the Android apps into malware and goodware. According to the framework introduced, the most significant permissions that characterize optimally malware apps are identified using Information Gain Ratio method and encapsulated into patterns of features. The patterns of features data is used to train and test the system using stratified cross-validation methodologies. The experiments conducted conclude that the proposed classifier can be effective in Android protection. The results also underline that the neuro-fuzzy techniques are feasible to employ in the field.

A Study on the Mathematics Education via Intuition (직관을 통한 수학교육에 관한 고찰)

  • LEE, Daehyun
    • Journal for History of Mathematics
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    • v.28 no.5
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    • pp.263-278
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    • 2015
  • As intuition is more unreliable than logic or reason, its studies in mathematics and mathematics education have not been done that much. But it has played an important role in the invention and development of mathematics with logic. So, it is necessary to recognize and explore the value of intuition in mathematics education. In this paper, I investigate the function and role of intuition in terms of mathematical learning and problem solving. Especially, I discuss the positive and negative aspects of intuition with its characters. The intuitive acceptance is decided by self-evidence and confidence. In relation to the intuitive acceptance, it is discussed about the pedagogical problems and the role of intuitive thinking in terms of creative problem solving perspectives. Intuition is recognized as an innate ability that all people have. So, we have to concentrate on the mathematics education via intuition and the complementary between intuition and logic. For further research, I suggest the studies for the mathematics education via intuition for students' mathematical development.

Childhood Cancer Survivor's Services Needs for the Better Quality of Life (소아암 완치자의 삶의 질 향상을 위한 서비스 욕구)

  • Kim, Min-Ah;Yi, Jae-Hee
    • Child Health Nursing Research
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    • v.18 no.1
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    • pp.19-28
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    • 2012
  • Purpose: The study aimed to identity specific needs for services and programs to help childhood cancer survivors adjust and adapt to life after treatment. Methods: In-depth interviews were conducted with 31 childhood cancer survivors, diagnosed with cancer before the age of 18 and currently between 15 and 39 years of age. Each survivor had completed his/her cancer treatment. Results: The participating cancer survivors reported needs for services related to psychological counseling, schooling and learning, social skills, mentorship, integrated health management, self support activities, families of survivors, and public recognition and awareness. Conclusion: The results of the study indicate a need to better understand childhood cancer survivors, provides a basis for developing various services and programs to improve the quality of life among childhood cancer patients, survivors, and their families, and supports the importance of psychosocial adjustment.

A Study on the Load Frequency Control of 2-Area Power System Using Neural Network PID Controller (신경회로망 PID 제어기를 이용한 전력계통의 부하주파수제어에 관한 연구)

  • Chong, H.H.;Kim, S.H.;Joo, S.M.;Kim, K.H.;Yoo, J.Y.
    • Proceedings of the KIEE Conference
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    • 1997.07c
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    • pp.1021-1024
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    • 1997
  • This paper has presented a method for self-tuning tile PID controller using a BP method of multilayered NNs. The proposed controller employ input signal as a learning signal of PID control. The proposed controller is applied to load-frequency control of power system and it is investigated a dynamic characteristic. The simulation results shows that proposed NN STPID controller has the good dynamics responses against load disturbances.

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Analysis of Teaching Behavior Based on the Learner-Centered Teaching Competency (학습자 중심의 교수역량에 근거한 교수행동 분석)

  • Park, Sung-Mi;Sim, Mi-Ja
    • Journal of Fisheries and Marine Sciences Education
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    • v.23 no.3
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    • pp.374-387
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    • 2011
  • The purpose of this study was to analyze teaching behavior based on the learner-centered teaching competency. For the study, the related literatures were reviewed focusing on the experiences and suggestions in developing of learner-centered teaching competency. In addition, interviews with 6 professors were conducted and their teaching design were analyzed. The keys of analysis were perspective of teaching behavior, self-monitoring of teaching behavior, consulting of teaching behavior based on the learner-centered teaching competency. The findings of this study were as follows; most of professors recognized correlations of teaching and learning. But, there were some barriers co-work of learners in teaching behavior.

The effect of the Problem Posing Teaching Model on Problem Solving and Learning Attitude (문제설정 수업모형이 문제해결력과 수학 태도에 미치는 효과)

  • 이상원
    • The Mathematical Education
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    • v.43 no.3
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    • pp.233-255
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    • 2004
  • Problem solving in math education is of great importance. The interest on problem solving in math education is growing all over the world. Problem solving ability is important throughout the fourth-sixth national curriculum in Korea and this is also necessary in the seventh national curriculum. The writer has implemented a proper model for problem posing and this is also necessary in the seventh national curriculum that emphasizes self-leading for improvement in the classroom. This model has advantages to cultivate a good habit of students who tries to solve the problems with concrete strategies, to take part in the problem solving activity and to change their mathematical attitude.

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The research on the actual application of the national mathematics education advance plan to the new mathematics textbooks (수학교육 선진화 방안의 중학교 교과서 적용 실태 분석)

  • Kang, Ok Ki;Kim, Soo Cheol;Lee, Hwan Chul
    • The Mathematical Education
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    • v.52 no.2
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    • pp.129-147
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    • 2013
  • The Ministry of Education Science and Technology represented National Mathematics Education Advance Plan in 2012. The plan is focused on reinforcing mathematics education, improving understanding about mathematics, and enhancing self-guided learning. After the National Mathematics Education Advance Plan new middle school mathematics textbooks have been developed and they will be used from 2013. The purpose of this study is to analyse those mathematics textbooks to find how the National Mathematics Education Advance Plan is affected to the mathematics textbooks. This study found some important aspects affected from the Advance Plan to those textbooks and some implications for the future Korean mathematics education.