• Title/Summary/Keyword: Adaptive Contents

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Adaptive Output Feedback Controllers for Feedback Passive Nonlinear Systems

  • Son, Young I.;Shim, Hyungbo;Shim, Nam H.;Seo, Jin H.
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.59.3-59
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    • 2002
  • $\textbullet$ Contents 1: Preliminaries on passivity and feedback passivity $\textbullet$ Contents 2: Assumptions in the paper $\textbullet$ Contents 3: Adaptive output feedback controllers $\textbullet$ Contents 4: Adaptive disturbance attenuation $\textbullet$ Contents 5: Adaptive passification $\textbullet$ Contents 6: An illustrative numerical example

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An Indirect Decoupled Adaptive Fuzzy Sliding-Mode Control through width adaptation

  • Kim, Dowoo;Yang, Haiwon;Han, Hongsuck
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.62.4-62
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    • 2002
  • $\textbullet$ Contents 1. Introduction $\textbullet$ Contents 2. System Description $\textbullet$ Contents 3. Decoupled Sliding Mde Control $\textbullet$ Contents 4. Decoupled Adaptive Fuzzy Sliding Mode Control through width adaptation $\textbullet$ Contents 5. Simulation Result $\textbullet$ Contents 6. Conclusion

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A Robust Direct Adaptive Controller Design for Nonlinear Systems using High-Order Neural Networks

  • Lee, Hyo-Seop;Cheong, Jin-Hyuk;Rhee, Hyoung-Chan;Yang, Hai-Won
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.64.2-64
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    • 2002
  • Contents 1. Introduction $\textbullet$ Contents 2. System description $\textbullet$ Contents 3. Desired feedback control and function approximation $\textbullet$ Contents 4. Robust adaptive controller design $\textbullet$ Contents 5. Simulation study $\textbullet$ Contents 6. Conclusion

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Adaptive Output Feedback Speed Control of Induction Motorswith Uncertain Rotor Resistance and Load Torque

  • Hwang, Young-Ho;Yang, Hai-Won;Kim, Hong-Pil;Kim, Hyung-Joong
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.64.4-64
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    • 2002
  • $\textbullet$ Contents 1 Introduction $\textbullet$ Contents 2 Problem Statement $\textbullet$ Contents 3 Adaptive Output Feedback Control Design $\textbullet$ Contents 4 Stability analysis $\textbullet$ Contents 5 Simulation Result $\textbullet$ Contents 6 Conclusions

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A New 3D Depth Reconstruction Method Adaptive to Various Environments (환경 적응적 3D 깊이 재구성 방법)

  • Kim, Jung-Un;Kang, Hang-Bong
    • Journal of Korea Multimedia Society
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    • v.19 no.2
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    • pp.271-279
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    • 2016
  • The recent development of the HD (High Definition) and UHD (Ultra High Definition) technology allowed the growth of 3D contents market. Yet the majority of the 3D contents in the market are strictly for 6.5 cm inter-ocular distance, causing various visual discomforts for the viewers who have different inter-ocular distance. Moreover, because the 3D contents are created for a fixed viewing distance, the change of the viewing distances when watching 3D contents can also cause visual conflicts. To solve this problem, we devised techniques that consider the environmental information of the viewer watching 3D contents. By analyzing the relationship between viewing distance, inter-ocular distance, and perceived depth, we created an adaptive content viewing system that reflects the viewer's environment to minimize any conflicts in watching 3D contents. From our experiments, we found that the performance of our adaptive content viewing system was reasonable.

An Exploration of Players' Aggression: Role of Game and Life Self-Efficacy and Adaptive Game Use Tendency

  • Lee, Hye Rim;Jeong, Eui Jun
    • International Journal of Contents
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    • v.11 no.4
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    • pp.7-14
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    • 2015
  • This study examined whether game usage would alleviate players' aggressive tendencies. Other game-related variables, psychological care factors (adaptive game use tendency, game self-efficacy, and life self-efficacy), and psychological problem factors (loneliness and depression) were controlled for determination of the effect. We drew on the catharsis theory from therapeutic psychology literature to explain how game usage contributes to the alleviation of aggressive tendencies. Over two weeks data were collected from 918 participants online. The results indicated that gaming activity had a significant effect on aggression. Higher levels of game and life self-efficacy, as well as adaptive game use tendencies, decreased the degree of aggression. Likewise, higher levels of loneliness and depression reduced the degree of aggression. Results and implications are discussed.

Study on smart contents development directions for children with autistic disorder to enhance adaptive behavior (자폐성장애 아동의 적응행동 향상을 위한 스마트 콘텐츠 개발 방향에 대한 연구)

  • Han, Dong-Wook;Kang, Min-Chae
    • Journal of Digital Convergence
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    • v.11 no.10
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    • pp.123-131
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    • 2013
  • This study aims to investigate development directions for smart contents to support enhancing adaptive behavior skills of children with autistic disorder in elementary school. AHP survey of experts including special education teachers and directors in educational institution for disability children was performed to analyze importance weight for smart contents development necessity and effectiveness in adaptive behavior skills. And the smart contents development suitability through pre-discussion for idea generation for various development method and AHP survey with smart application development experts was evaluated. The results show that the effective and suitable adaptive behavior skills for smart contents development were understanding of languaging, time management and keeping, movement skills, wearing clothes, and personal hygiene in order of importance. Based on this study, education authorities should make an effort not to develop fragmentary educational smart contents but to support development of smart contents and service systems with better effectiveness and usability to meet demand for special education teachers and parents considering characteristics of children with autism.

Effective Contents Delivery System Using Service Adaptive Network Architecture(SaNA) (Service adaptive Network Architecture(SaNA)을 활용한 콘텐츠 전송 시스템)

  • Kong, Seok-Hwan;Lee, Jai-Yong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.39B no.6
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    • pp.406-413
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    • 2014
  • In recent years, various contents traffics are increasing according to the various internet connectable devices which have become contents provider. Because these contents traffics show different pattern from previous one, many researches for efficient contents delivery system are in progress. CCN(Contents Centric Network), one of the representative research subject, has inter operation problem with a current network because it has clean-state architecture. In this point of view, this paper suggests the SaNA(Service adaptive Network Architecture) for efficient contents delivery when it inter operates with current network architecture. SaNA is a convergence system which can be gradually applied to current network using CCN and SDN(Software Defined Network) which are core future internet technologies. Appling this system on the contents delivery service, it can increase the network bandwidth utilization by two times and decrease the contents delivery time by 1.7 times.

Performance Analysis of Adaptive OFDM Systems using Adaptive Equalizer (적응 등화기를 이용한 적응 OFDM 시스템 성능분석)

  • Kang, Heau-Jo
    • Journal of Digital Contents Society
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    • v.12 no.3
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    • pp.355-360
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    • 2011
  • In this paper, the performance of OFDM (Orthogonal Frequency Division Multiplexing) was assessed by using computer simulations performed using Matlab. We analyzed channel estimation algorithm for adaptive modulation techniques and effect of system using designed simulator in Multimedia wireless communication multipath fading channel environment. Also, we analyzed performance of adaptive OFDM systems that apply adaptive equalizer using guided result through BER. In result, in case of adaptive modulation OFDM systems that modulation mode changes according to channel state, we knew that adaptive modulation OFDM systems have gains of about 7dB performance than general system (BER=$10^{-1}$). Thus we know that adaptive OFDM propose systems is required for efficient transmission in the high speed Multimedia wireless communication channel environment.

Design and Implementation of an Adaptive learning Management System for Personalized Learning (학습자 특성을 고려한 적응적 학습 관리 시스템의 설계 및 구현)

  • 김명회;이현태;오용선
    • The Journal of the Korea Contents Association
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    • v.4 no.1
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    • pp.8-17
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    • 2004
  • In this paper, we design an intelligent loaming management logics which provide personalized teaming considering adaptive learning content dement and content sequencing. We enhance the existing functional model including adaptive learning management functions. Also, we present a system architecture to implement the adaptive learning management system. We realize the adaptive teaming management system based on the SCORM run-time engine.

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