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This paper present a prediction model for three different objection (the airflow rate, the carbonaceous biochemical oxygen demand (CBOD) of the effluent, and the total suspend solids (TSS) of the effluent. The model is built by the MLP neural network. The accurancy of the prediction result of MLP neural network is compared with the accurancy of the result of trational stational autoregressive model(AR)...
Gene expression programming (GEP) is a new evolutionary algorithm, which has the very good applications in the field of function finding. In view of the insufficiency of traditional GEP, this paper puts forward an improved gene expression programming algorithm based on hybrid strategy (HSI-GEP). This paper has two improvements: (1) using mirror and reset mechanism to replace the inferior individuals...
Inspired by the evolution process of human, a double system co-evolutionary gene expression programming (DSCE-GEP) is proposed in this paper. The DSCE-GEP consists of natural evolution system and artificial intervention system, where the natural evolution system solves problem according to the mode of standard gene expression programming (ST-GEP) and the artificial intervention system guides the process...
An improved mixed cryptosystem is presented by combining both random phase encoding technique based chaos and public key cryptography. The scheme provides not only good robustness of random phase encoding technique, but also a new solution of key distribution for symmetric cryptography algorithms. In additions, computer simulation is illustrated in detail. The tolerance to data loss of the encoded...
In this paper, a new type of sound-absorbing film material was made, using polyaniline (PAN) doped graphite (G) as the basis, polymer as the film forming agent. Factors which affected the sound absorption properties were discussed, the results showed that sound absorbing properties were the best, when Surface resistance was 103Ω, film thickness was 300µm. On this condition, average absorption coefficient...
The Urban Public Transportation Information Service System, for the bus arrival time showed on the intelligent electronic station board, is designed to provide accurate and timely information which can help travelers choose transit lines and the shortest paths, can improve the travel efficiency and attract more potential travelers. However, the current bus arrival time prediction model under application...
Weakening operator has been extensively applied in various fields of data processing before grey modeling in concussion harass system, this paper studies the reasons why the weakening operator can improve the modeling precision effectively. The results indicate that the class ratio of sequence transformed by the weakening operator is smaller than the observed original time series, the degree of smooth...
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