This study presents an evolutionary neural fuzzy network, designed using the functional-link-based neural fuzzy network (FLNFN) and a new evolutionary learning algorithm. This new evolutionary learning algorithm is ba...
详细信息
This study presents an evolutionary neural fuzzy network, designed using the functional-link-based neural fuzzy network (FLNFN) and a new evolutionary learning algorithm. This new evolutionary learning algorithm is based on a hybrid of cooperative particle swarm optimization and cultural algorithm. It is thus called cultural cooperative particle swarm optimization (CCPSO). The proposed CCPSO method, which uses cooperative behavior among multiple swarms, can increase the global search capacity using the belief space. Cooperative behavior involves a collection of multiple swarms that interact by exchanging information to solve a problem. The belief space is the information repository in which the individuals can store their experiences such that other individuals can learn from them indirectly. The proposed FLNFN model uses functional link neural networks as the consequent part of the fuzzy rules. Finally, the proposed functional-link-based neural fuzzy network with cultural cooperative particle swarm optimization (FLNFN-CCPSO) is adopted in several predictive applications. Experimental results have demonstrated that the proposed CCPSO method performs well in predicting the time series problems.
This paper introduces two different microcontroller based three phase induction motor starters, the first using electromechanical star-delta with reactor starting and the second utilizes electronic AC voltage controll...
详细信息
Considering the stochastic delay problems existing in networked control systems, a new control mode is proposed for networked control systems whose delay is longer than a sampling period. Under the control mode, the m...
详细信息
Considering the stochastic delay problems existing in networked control systems, a new control mode is proposed for networked control systems whose delay is longer than a sampling period. Under the control mode, the mathematical model of such a system is established. A stochastic stabilization condition for the system is given. The maximum delay can be derived from the stabilization condition.
In this paper, a perceptual audio hashing method in compressed domain is proposed for content identification, in which MDCT coefficients as the intermediate decoding result are selected for perceptual feature extracti...
详细信息
This paper presents an improved particle swarm optimizer with accelerating factor (IPSO) for solving the problems of easily falling into local optimum solution and slow convergence speed of the traditional particle sw...
详细信息
This paper presents an improved particle swarm optimizer with accelerating factor (IPSO) for solving the problems of easily falling into local optimum solution and slow convergence speed of the traditional particle swarm optimization (PSO). During the iterating process, the particle can dynamically adjusts flying velocity according to flying direction at the different iteration, and effectively escapes from local optimum solution according to the gathering degree and the steady degree, and finally attains global optimum solution. Experimental results of benchmark functions show the new method has faster convergence speed and higher globally convergence ability than the traditional PSO.
Dynamic singularities make it difficult to plan the Cartesian path of free-floating robot. In order to avoid its effect, the direct kinematic equations are used for path planning in the paper. Here, the joint position...
详细信息
Dynamic singularities make it difficult to plan the Cartesian path of free-floating robot. In order to avoid its effect, the direct kinematic equations are used for path planning in the paper. Here, the joint position, rate and acceleration are bounded. Firstly, the joint trajectories are parameterized by polynomial or sinusoidal functions. And the two parametric functions are compared in details. It is the first contribution of the paper that polynomial functions can be used when the joint angles are limited (In the similar work of other researchers, only sinusoidla functions could be used). Secondly, the joint functions are normalized and the system of equations about the parameters is established by integrating the differential kinematics equations. Normalization is another contribution of the paper. After normalization, the boundary of the parameters is determined beforehand, and the general criterion to assign the initial guess of the unknown parameters is supplied. The criterion is independent on the planning conditions such as the total time tf. Finally, the parametes are solved by the iterative Newtonian method. Modification of tf may not result in the recalculation of the parameters. Simulation results verify the path planning method.
The current Grover quantum searching algorithm cannot identify the difference in importance of the search targets when it is applied to an unsorted quantum database, and the probability for each search target is equal...
详细信息
The current Grover quantum searching algorithm cannot identify the difference in importance of the search targets when it is applied to an unsorted quantum database, and the probability for each search target is equal. To solve this problem, a Grover searching algorithm based on weighted targets is proposed. First, each target is endowed a weight coefficient according to its importance. Applying these different weight coefficients, the targets are represented as quantum superposition states. Second, the novel Grover searching algorithm based on the quantum superposition of the weighted targets is constructed. Using this algorithm, the probability of getting each target can be approximated to the corresponding weight coefficient, which shows the flexibility of this ***, the validity of the algorithm is proved by a simple searching example.
Industrial process control IP networks support communications between process control applications and devices. Communication faults in any stage of these control networks can cause delays or even shutdown of the enti...
详细信息
ISBN:
(纸本)9783540758525
Industrial process control IP networks support communications between process control applications and devices. Communication faults in any stage of these control networks can cause delays or even shutdown of the entire manufacturing process. The current process of detecting and diagnosing communication faults is mostly manual and limited to post-reaction of user complaints which are followed by noticeable process malfunctioning. This paper identifies control network specific failures and their symptoms for early detection
The wiping-out and congruency property is researched in the experiments of piezoelectric ceramic actuator. A new formula called sorting and taxis is given for modeling which can improve the ability of Preisach model t...
详细信息
The wiping-out and congruency property is researched in the experiments of piezoelectric ceramic actuator. A new formula called sorting and taxis is given for modeling which can improve the ability of Preisach model to describe hysteresis nonlinearity under the non-monotony extrema input signals and eliminate the constraint in the input sequence when using the traditional mathematical formula. The results of experiments show that it can predict the output of the piezoelectric ceramic actuator effectively and make the model more precise.
This paper proposes an approach of dynamic fuzzy modeling applied to friction compensation to enhance the performance of a servodrive system in tracking a trajectory. The fuzzy observer is derived from the dynamic nat...
详细信息
暂无评论