• Publications
  • Influence
Nonlinear Control of Quadrotor for Point Tracking: Actual Implementation and Experimental Tests
  • Y. Choi, H. Ahn
  • Engineering
  • IEEE/ASME Transactions on Mechatronics
  • 1 June 2015
In this paper, a nonlinear control scheme along with its simulation and experimental results for a quadrotor are presented. It is not easy to control the quadrotor because the dynamics of quadrotor,Expand
  • 165
  • 11
Fault detection and isolation for a small CMG-based satellite: A fuzzy Q-learning approach
Abstract The model-based fault detection and isolation (FDI) methods are used to detect faults in small satellites when actuator redundancy may not be feasible due to weight, cost, and spaceExpand
  • 19
  • 1
Evaluation of Farm Lands located in Urban Area and Industrial Complex using Insect Diversity Indices
To evaluate environment of farm lands using indicator insects and evaluation indices, the insect abundance of which is one of the major criteria for the evaluation of agricultural environment of farmExpand
  • 4
  • 1
A survey on multi-agent reinforcement learning: Coordination problems
  • Y. Choi, H. Ahn
  • Computer Science
  • Proceedings of IEEE/ASME International…
  • 15 July 2010
TLDR
We provide a survey on coordination problems in cooperative multiagent reinforcement learning, and propose new approach to solve coordination problems. Expand
  • 29
Formation control of quad-rotors in three dimension based on euclidean distance dynamics matrix
  • Y. Choi, H. Ahn
  • Mathematics
  • 11th International Conference on Control…
  • 19 December 2011
In this paper, we consider that a group of four quad-rotors in three dimension is controlled by the formation control law. Formation control problems in three dimension have been of considerableExpand
  • 6
Realization of distributed formation flying using a group of autonomous quadcopters and application to visual performance show
In this paper, we introduce outdoor multi-drone platform which is supposed to be used for several purposes. The main application of the platform in this paper is a visual performance show called “theExpand
  • 6
The Bio-Insect and Artificial Robots Interaction Based on Multi-Agent Reinforcement Learning
Multi-agent reinforcement learning is a challenging research topic used in various fields including robotics, artificial intelligence, distributed control, and so on. Recently, there have been lotsExpand
  • 2
Bio-insect and artificial robot interaction using cooperative reinforcement learning
TLDR
We present a cooperative reinforcement learning technique using a fuzzy logic-based expertise measurement system to entice bio-insects towards desired goal areas using artificial robots without any human aid. Expand
  • 2
The Structuring Process of Multi‐Centered Usability Evaluation Method
TLDR
In order to minimize a biased view of evaluators in usability test, a multiple evaluation method so called Multi-Centered Usability Evaluation Method(MCUEM) was suggested and structured in this study. Expand
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