A two-stage learning algorithm based on Hebbian learning rule and evolutionary computation technique is presented in this paper for training Fuzzy Cognitive Maps. Fuzzy Cognitive Maps is a soft computing technique for...
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ISBN:
(纸本)0780382781
A two-stage learning algorithm based on Hebbian learning rule and evolutionary computation technique is presented in this paper for training Fuzzy Cognitive Maps. Fuzzy Cognitive Maps is a soft computing technique for modeling complex systems, which combines the synergistic theories of neural networks and fuzzy logic. The methodology of developing Fuzzy Cognitive Maps (FCMs) relies on human expert experience and knowledge, but still exhibits weaknesses in utilization of learning methods. We investigate in this work a coupling of Differential Evolution algorithm and Unsupervised Hebbian learning algorithm, using both the global search capabilities of Evolutionary techniques and the effectiveness of the Nonlinear Hebbian learning rule. The proposed algorithm applied successfully in a real-world process control problem. Experimental results suggest that the two-stage learning strategy Is capable to train FCMs effectively leading the system to desired steady states and determining the apprpriate weight matrix.
We solve the Motion Planning Problem for nonholonomic systems without drift under a discrete levels constraint, i.e. when it is driven by input that can assume only discrete levels. In particular, we propose an algori...
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The highly non-linear and coupled dynamics of Autonomous Underwater Vehicles (AUVs), added with modeling errors, parametric uncertainties and payload variations pose a major challenge towards autonomous control of AUV...
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Aimed at structure of Humanoid Robot and requirements for control performance, this paper designs and realizes joint controller based on CAN bus, and structures an effective credible control system by connecting all j...
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In this paper, we focus on an open problem in *** area of 3D object recognition-vision model building for 3D objects. We integrating CAD system and robot vision system and led to a third type of vision model building ...
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Mobile robots equipped with manipulator arms are often required to operate on rough and uneven terrains. During the design stage, the designer needs to verify the robots performance on various test terrains. Physical ...
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ISBN:
(纸本)1424400384
Mobile robots equipped with manipulator arms are often required to operate on rough and uneven terrains. During the design stage, the designer needs to verify the robots performance on various test terrains. Physical prototyping although is more desirable, may prove to be expensive and time consuming. Virtual prototyping can be used especially in the conceptual design stage in order to significantly reduce the amount of physical testing that is required. This paper discusses the application of virtual prototyping using ADAMS software for tracked mobile robots. The virtual prototype was created for an existing robot and was validated with tests done on the physical robot. Different types of virtual terrains were created and dynamic simulations of the robot were performed on these terrains. The simulation results helped in many ways including visualization of the robot motion on different terrains and in determining the limiting dimensions of obstacles, stairs, ditches, etc., that the robot can safely negotiate. The described process can be applied to new robot designs, while still in their conceptual design stage.
The motion of wheeled mobile robots is inherently based on their wheels' rolling capabilities. The assumption is that each wheel can rotate indefinitely, backwards or forward. This is the starting point for all mo...
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作者:
Hwang, H.Choi, D.Y.Robotics and Automation Lab.
Dept. of Agricultural Eng. College of Agriculture Sungkyunkwan Univ. Seoul Korea Republic of Robotics Lab.
Automation Eng. Dept Korea Insititute of Machinery and Metals Sangnam-dong-66 Kyungwan Changwon Korea Republic of
Cerebellar Model Arithmetic Controller (CMAC), a kind of neuro-net based adaptive control funotion generator, was suecessfully applied to the problems of inverse kinematic lotion of two d.o.f. manipulator and direct I...
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With the continuous penetration of information technology into scientific research work, information resources with diverse structures have gathered into the scientific research team. Facing the needs of scientific re...
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