• Title/Summary/Keyword: Training process

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Training-Free Fuzzy Logic Based Human Activity Recognition

  • Kim, Eunju;Helal, Sumi
    • Journal of Information Processing Systems
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    • v.10 no.3
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    • pp.335-354
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    • 2014
  • The accuracy of training-based activity recognition depends on the training procedure and the extent to which the training dataset comprehensively represents the activity and its varieties. Additionally, training incurs substantial cost and effort in the process of collecting training data. To address these limitations, we have developed a training-free activity recognition approach based on a fuzzy logic algorithm that utilizes a generic activity model and an associated activity semantic knowledge. The approach is validated through experimentation with real activity datasets. Results show that the fuzzy logic based algorithms exhibit comparable or better accuracy than other training-based approaches.

User Interface Design and Rehabilitation Training Methods in Hand or Arm Rehabilitation Support System (손과 팔 재활 훈련 지원 시스템에서의 사용자 인터페이스 설계와 재활 훈련 방법)

  • Ha, Jin-Young;Lee, Jun-Ho;Choi, Sun-Hwa
    • Journal of Industrial Technology
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    • v.31 no.A
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    • pp.63-69
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    • 2011
  • A home-based rehabilitation system for patients with uncomfortable hands or arms was developed. By using this system, patients can save time and money of going to the hospital. The system's interface is easy to manipulate. In this paper, we discuss a rehabilitation system using video recognition; the focus is on designing a convenient user interface and rehabilitation training methods. The system consists of two screens: one for recording user's information and the other for training. A first-time user inputs his/her information. The system chooses the training method based on the information and records the training process automatically using video recognition. On the training screen, video clips of the training method and help messages are displayed for the user.

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A Development of Fire Training Simulator Based on Computational Fluid Dynamics Simulation (전산수치해석 기반 화재훈련 VR 시뮬레이터의 개발)

  • Cha, Moo-Hyun;Lee, Jai-Kyung;Park, Seong-Whan;Choi, Byung-Il
    • Korean Journal of Computational Design and Engineering
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    • v.14 no.4
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    • pp.271-280
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    • 2009
  • An experience based training system concerning various fire situations which may result many casualties has been required to make rapid decision and improve the responsiveness. Recently, the necessity of virtual reality (VR) based training system which can replace a dangerous full-scale fire training and be easily adopted to the training or evaluation process is increasing. This study constructed tile virtual environment according to pre-defined scenarios, utilized the FDS(Fire Dynamics Simulator), three dimensional computational fire analysis program, to derive numerically simulated data on the propagation of fire. Finally, by visualizing the realistic fire and smoke behavior through virtual reality technique and implementing real-time interaction, we developed a VR-based fire training simulator. Also, in order to ensure the sense for tile real of a virtual world and reaI-time performance at the same time, we proposed appropriate data processing and space search algorithms, demonstrate d the value of proposed method through experiments.

A new neural linearizing control scheme using radial basis function network (Radial basis function 회로망을 이용한 새로운 신경망 선형화 제어구조)

  • Kim, Seok-Jun;Lee, Min-Ho;Park, Seon-Won;Lee, Su-Yeong;Park, Cheol-Hun
    • Journal of Institute of Control, Robotics and Systems
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    • v.3 no.5
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    • pp.526-531
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    • 1997
  • To control nonlinear chemical processes, a new neural linearizing control scheme is proposed. This is a hybrid of a radial basis function(RBF) network and a linear controller, thus the control action applied to the process is the sum of both control actions. Firstly, to train the RBF newtork a linear reference model is determined by analyzing the past operating data of the process. Then, the training of the RBF newtork is iteratively performed to minimize the difference between outputs of the process and the linear reference model. As a result, the apparent dynamics of the process added by the RBF newtork becomes similar to that of the linear reference model. After training, the original nonlinear control problem changes to a linear one, and the closed-loop control performance is improved by using the optimum tuning parameters of the linear controller for the linear dynamics. The proposed control scheme performs control and training simultaneously, and shows a good control performance for nonlinear chemical processes.

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A Study on the Prediction of Optimized Injection Molding Condition using Artificial Neural Network (ANN) (인공신경망을 활용한 최적 사출성형조건 예측에 관한 연구)

  • Yang, D.C.;Lee, J.H.;Yoon, K.H.;Kim, J.S.
    • Transactions of Materials Processing
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    • v.29 no.4
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    • pp.218-228
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    • 2020
  • The prediction of final mass and optimized process conditions of injection molded products using Artificial Neural Network (ANN) were demonstrated. The ANN was modeled with 10 input parameters and one output parameter (mass). The input parameters, i.e.; melt temperature, mold temperature, injection speed, packing pressure, packing time, cooling time, back pressure, plastification speed, V/P switchover, and suck back were selected. To generate training data for the ANN model, 77 experiments based on the combination of orthogonal sampling and random sampling were performed. The collected training data were normalized to eliminate scale differences between factors to improve the prediction performance of the ANN model. Grid search and random search method were used to find the optimized hyper-parameter of the ANN model. After the training of ANN model, optimized process conditions that satisfied the target mass of 41.14 g were predicted. The predicted process conditions were verified through actual injection molding experiments. Through the verification, it was found that the average deviation in the optimized conditions was 0.15±0.07 g. This value confirms that our proposed procedure can successfully predict the optimized process conditions for the target mass of injection molded products.

An Analysis on the Cryogenic Distillation Process for $^{13}CH_4$ Separation from LNG by Short-Cut Method (Short-Cut 방법에 의한 LNG 성분에서 $^{13}CH_4$초저온 증류 공정 분석)

  • Lee Youngchul;Song Taekyoong;Cho ByungHak;Baek Youngsoon;Song KyuMin
    • Journal of the Korean Institute of Gas
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    • v.9 no.2 s.27
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    • pp.22-27
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    • 2005
  • In this study, we analyze computational simulation of cryogenic distillation process to separate $^{13}CH_4$ and $^{12}CH_4$ from LNG by using the cryogenic energy. Used computational simulation program is made Smoker's equation and FUG(Fenske-Underwood-Gilliland)'s method by short-cut method. Generally speaking, the technology of carbon isotope separation is studied by many methods, especially the separation by cryogenic distillation process is commercialized because of many merits.

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e-Business Manpower Classification That is Correct in New Environment and Study of Course Roadmap Development for Manpower Training (새로운 환경에 맞는 e-비즈니스 인력의 분류와 인력양성을 위한 진로 로드맵 개발에 관한 연구)

  • Jang, Ki-Jin;Hong, Jung-Wan
    • The Journal of Society for e-Business Studies
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    • v.14 no.3
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    • pp.107-129
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    • 2009
  • The person who realize e-business must understand Information Technology(IT) and business process. Current policy and system should be attained new change for domestic e-business manpower training. Divided for manpower training in new dimension justice about present e-business manpower and manpower classification. The capacity about course of study of e-business manpower and program development classified in a new comer, expert, administrator, manager's process. And the process divided ten details job according to business and functions that achieve in enterprise and major in university. Present capacity that needs in details line of duty by ASK(Attitude, Skill, Knowledge) model and focused for program development.

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Study of Pedagogical Practice and Teaching Experience in European Countries

  • Poplavskyi, Mykhailo
    • International Journal of Computer Science & Network Security
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    • v.22 no.3
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    • pp.252-258
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    • 2022
  • Globalization, development of the information society, intensification of migration processes, and internationalization of education in recent years have significantly affected the international labour market and increased competition between professionals in various fields. Academic, research and teaching staff are currently facing rapid changes and growing demand for quality educational services. Under such conditions, educational institutions around the world pay particular attention to improving the quality of the educational process in order for their graduates to be able to compete in the international labour market. The study of the experience of teachers' professional training in advanced countries opens new opportunities for improving the system of pedagogical training in Ukraine in order to adapt it to the requirements of the European educational space. The progressive achievements of countries demonstrating a high level of teachers' professional training in accordance with international standards, having rich historical educational traditions are of considerable scientific interest; consequently, this contributes to their leadership in science and education at the regional and global levels. The purpose of the present academic paper lies in analysing the latest trends in exploring teaching experience in the European countries and performance review of passing by students and teachers of the program on studying of pedagogical practice and experience of teaching in the countries of Europe. Methodology. Analytical and empirical (questionnaire) methods were used in the research process. Results. According to the obtained results of the research, the advantages, the most common areas of educational programs and the wishes of the participants regarding the practical implementation of the experience were identified.

A study on characteristics, training, and employment of the teacher of the gifted (영재교육 담당 교원의 자질 및 양성, 임용)

  • Kim, Hong-Won
    • Journal of Gifted/Talented Education
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    • v.12 no.2
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    • pp.93-125
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    • 2002
  • The purpose of this study is to identify the characteristics of the teachers of the gifted and to identify present status of the training and employment system of the teachers of the gifted in Korea. The characteristics of the teachers of the gifted were explained in three areas of philosophical understanding, experts' characteristics, and personal characteristics. This paper presented several suggestions to improve a system of employment and training of teachers of the gifted in Korea, and they were as follows: - To enhance the quality of training program. The training program should include various activities, for example, discussion, field trip, making a product, seminar, workshop, practice in various teaching models, etc., to foster creative and higher-order thinking abilities. - To prepare various kinds of training programs in consideration of various teachers' needs. - To provide a training successively. The 60 hours' training is not sufficient to be a good and effective teacher of the gifted. Successive training is needed. - To prepare various incentives which make many competent teachers to take part in gifted education. - To improve process to select and to employ the teacher of the gifted. Many teachers want an more open and strict scrutiny process to select and employ the teachers of the gifted.

The process of estimating user response to training stimuli of joint attention using a robot (로봇활용 공동 주의 훈련자극에 대한 사용자 반응상태를 추정하는 프로세스)

  • Kim, Da-Young;Yun, Sang-Seok
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.25 no.10
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    • pp.1427-1434
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    • 2021
  • In this paper, we propose a psychological state estimation process that computes children's attention and tension in response to training stimuli. Joint attention was adopted as the training stimulus required for behavioral intervention, and the Discrete trial training (DTT) technique was applied as the training protocol. Three types of training stimulation contents are composed to check the user's attention and tension level and provided mounted on a character-shaped tabletop robot. Then, the gaze response to the user's training stimulus is estimated with the vision-based head pose recognition and geometrical calculation model, and the nervous system response is analyzed using the PPG and GSR bio-signals using heart rate variability(HRV) and histogram techniques. Through experiments using robots, it was confirmed that the psychological response of users to training contents on joint attention could be quantified.