• Title/Summary/Keyword: Action Selector

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Autonomous Mobile Robot System based on a Fuzzy Artificial Immune System (퍼지 인공 면역망 시스템을 이용한 자율이동로봇 시스템)

  • Lee, Dong-Je;Choi, Young-Kui
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2007.10a
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    • pp.257-260
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    • 2007
  • In this paper addresses the low-level behavior of fuzzy control and the high-level behavior selector for Autonomous Mobile Robots (AMRs) based on a Fuzzy Artificial Immune Network. The sensing information that comes from ultrasonic sensors is the antigen it, and stimulates antibodies. There are many possible combinations of actions between action-patterns and external situations. The question is how to handle the situations to decide the proper action. We propose a fuzzy artificial immune network to solve the above problem. and the computer simulation for an AMR action selector shows the usefulness of the proposed action selector.

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Autonomous Mobile Robot System based on a Fuzzy Artificial Immune System (퍼지 인공 면역망 시스템을 이용한 자율이동로봇 시스템)

  • Lee, Dong-Je;Choi, Young-Kiu
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.11 no.11
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    • pp.2083-2089
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    • 2007
  • In this paper addresses the low-level behavior of fuzzy control and the high-level behavior selector for Autonomous Mobile Robots(AMRs) based on a Fuzzy Artificial Immune Network. The sensing information that comes from ultrasonic sensors is the antigen it, and stimulates antibodies. There are many possible combinations of actions between action-patterns and external situations. The question is how to handle the situations to decide the proper action. We propose a fuzzy artificial immune network to solve the above problem. and the computer simulation for an AMR action selector shows the usefulness of the proposed action selector.

Design of Autonomous Mobile Robot System Based on Artificial Immune Network and Internet (인공 면역망과 인터넷에 의한 자율이동로봇 시스템 설계)

  • Lee, Dong-Je;Lee, Min-Jung;Choi, Young-Kiu
    • The Transactions of the Korean Institute of Electrical Engineers D
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    • v.50 no.11
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    • pp.522-531
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    • 2001
  • Recently conventional artificial intelligence(AI) approaches have been employed to build action selectors for the autonomous mobile robot(AMR). However, in these approaches, the decision making process to choose an action from multiple competence modules is still an open question. Many researches have been focused on the reactive planning systems such as the biological immune system. In this paper, we attempt to construct an action selector for an AMR based on the artificial immune network and internet. The information from vision sensors is used for antibody. We propose a learning method for artificial immune network using evolutionary algorithm to produce antibody automatically. The internet environment for an AMR action selector shows the usefulness of the proposed learning artificial immune network application.

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Autonomous Mobile Robot System Design based on a Learning Aritificial Immune Network Structure (인공 면역망 구조 학습에 근거한 자율 이동 로봇 시스템 설계)

  • Lee, Dong-Je;Lee, Min-Joong;Choi, Young-Kiu;Kim, Sung-Shin
    • Proceedings of the KIEE Conference
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    • 1999.07g
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    • pp.3036-3038
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    • 1999
  • The conventional structure for an action selector of an Autonomous Mobile Robot (AMR) has been criticized for a repeated action. To overcome this problem recently many researches have been focused on the reactive planning systems such as the biological immune system. In this paper, we propose a learning aritificial immune network, the learning method is to use Genetic Algorithm (GA). The computer simulation show that the usefulness of the learning immune network.

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Action Selection by Voting with Loaming Capability for a Behavior-based Control Approach (행동기반 제어방식을 위한 득점과 학습을 통한 행동선택기법)

  • Jeong, S.M.;Oh, S.R.;Yoon, D.Y.;You, B.J.;Chung, C.C.
    • Proceedings of the KIEE Conference
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    • 2002.11c
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    • pp.163-168
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    • 2002
  • The voting algorithm for action selection performs self-improvement by Reinforcement learning algorithm in the dynamic environment. The proposed voting algorithm improves the navigation of the robot by adapting the eligibility of the behaviors and determining the Command Set Generator (CGS). The Navigator that using a proposed voting algorithm corresponds to the CGS for giving the weight values and taking the reward values. It is necessary to decide which Command Set control the mobile robot at given time and to select among the candidate actions. The Command Set was learnt online by means as Q-learning. Action Selector compares Q-values of Navigator with Heterogeneous behaviors. Finally, real-world experimentation was carried out. Results show the good performance for the selection on command set as well as the convergence of Q-value.

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Design of an Action Selector for Soccer Robot Systems Using Multilayer Neural Networks (다층신경회로망을 이용한 축구 로봇시스템의 행동선택기 설계)

  • Son, Chang-Woo;Kim, Do-Hyun;Ahn, Hyun-Sik
    • Proceedings of the KIEE Conference
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    • 1999.11c
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    • pp.658-660
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    • 1999
  • 본 논문에서는 축구로봇 시스템에서 상위 레벨 제어기에 해당하는 행동선택기를 다층신경회로망을 이용하여 설계한다. 축구로봇 시스템에서 로봇의 속도가 빠른 상태에서 제어가 가능하도록 로봇의 행동레벨을 설정하고 주어진 동적 상황에 대해 여러 가지 상황변수를 정의하여, 각 상황에 가장 효율적이며 최적의 행동을 선택하도록 한다. 각 로봇이 목표점으로 이동할 때 어떠한 행동을 선택하여 어떻게 움직이느냐에 따라 로봇은 같은 위치에서 목표점을 이동하더라도 이동경로가 달라진다. 따라서, 로봇축구 경기 상황을 나타내는 상황 변수들을 입력으로 하는 다층신경회로망을 사용하여 출력으로 행동을 판단하여 실행하는 알고리즘을 제안하고 그를 위한 하드웨어와 시뮬레이터 도구를 제작한다. 역전파 알고리즘을 통해 신경망을 학습하고 학습된 데이터를 실험에 적용한다.

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