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Based on the neural network (NN) approximator, an online reinforcement learning algorithm is proposed for a class of affine multiple input and multiple output (MIMO) nonlinear discrete-time systems with unknown functions and disturbances. In the design procedure, two networks are provided where one is an action network to generate an optimal control signal and the other is a critic network to approximate...
In this paper we will present a vector polar histogram method for obstacle avoidance planning of autonomous underwater vehicle (Abbr. AUV), which is based on underwater sonar measurement. By applying this new method, we can solve the local minimum and frequent vibration problem in potential field method, and overcome the shortcoming in enhanced vector field method where different effect of obstacles...
Designers apply bump texture mapping to ceramic products by 3D graphics design software, which is difficult to be operated and time-consuming. Hence, it cannot easily satisfy the users. In order to improve the situation, embossed bump texture mapping based on OpenGL is realized in the paper. Users can design the two-dimensional texture of ceramic products, and obtain bumped and three-dimensional texture...
We consider a model of an irreducible network in which each node is subjected to a random demand, where the demands are jointly normally distributed. Each node has a given supply that it uses to try to meet its demand; if it cannot, the node distributes its unserved demand equally to its neighbors, which in turn do the same. The equilibrium is determined by solving a linear program (LP) to minimize...
With many security events taking place in recent years, scientists have realized vulnerability management is an important field and it brings critical effects to many information systems and services. One topic in this field is to identify similarity relationship between vulnerabilities. It can help us to alarm potential attacks. In this paper, we propose a text mining approach to compute a similarity...
In order to authenticate the integrity of audio aggregation, a fragile watermarking algorithm based on vector quantization has proposed which combining with Huffman coding. Put the output index into Huffman coding after obtaining the index's probability distribution by quantifying index address table. Then use the classical method of cryptography to complete zero-watermark embedding. The experimental...
For the situations that the preference information to attributes and estimating information to alternatives are expressed by intuitionistic fuzzy values, a new solution of the multiple attribute decision-making is given. Firstly, the solution of positive-ideal alternatives and negative-ideal alternatives are studied based on the traditional TOPSIS method. We give a method to choose the possible positive-ideal...
The paper gives the definition of consistency of interval number complementary judgement matrix, structuring object function, it gets the interval weight. Furthermore, it gets a simple method for checking the consistency of interval number complementary judgement matrix without having to solve linear program. Finally, a numerical example is given to illustrate the use of this method.
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