Xuncai Zhang

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The vast parallelism, exceptional energy efficiency and extraordinary information density inherent in DNA molecules are being explored for computing, data storage and cryptography. DNA cryptography is a new field of cryptography arising with the research of DNA computing in recent years. In this paper, an encryption scheme is designed by using the(More)
Shuffled frog leaping (SFL) is a population based, cooperative search metaphor inspired by natural memetics. Its ability of adapting to dynamic environment makes SFL become one of the most important memetic algorithms. In order to improve the algorithmpsilas stability and the ability to search the global optimum, a novel dasiacognition componentpsila is(More)
DNA computing is a new method of simulating biomolecular structure of DNA and computing by means of molecular biology technological computation. It introduces a fire-new data structure and calculating method, providing a new way for solving the NP-complete problem. It is a new computational method by harnessing the enormous parallel computing ability and(More)
Auto-Disturbance Rejection Controller (ADRC) has been proved to be a capable replacement of PID with unmistakable advantage in performance and practicality. But it is difficult to obtain a set of optimal parameters, for ADRC controller has too many parameters and has no deterministic rules to compute the parameters. In this paper, Objective function is(More)
Invasive weed optimization, which is inspired from the invasive habits of growth of weeds in nature, is a population-based intelligence algorithm. In this paper, we present invasive weed optimization with crossover operation combining the idea of the invasive weed with concepts from evolutionary algorithms. By applying the crossover operation in invasive(More)
Invasive weed optimization (IWO), which is inspired from the invasive habits of growth of weeds in nature, is a population-based intelligence algorithm. In this paper, the IWO is embedded into cultural framework as a population space of a cultural algorithm (CA), called cultural IWO. CA is mechanisms that incorporate generic knowledge sources obtained(More)
We have developed an an efficient approach called the improved non-dominated sorting genetic algorithm II (INSGA-II) for designing the library of DNA codewords based on the physicochemical constraints. Sequences that satisfy these constraints can be utilized in computations, various engineering applications such as microarrays, and nano-fabrications. The(More)
The following topics are dealt with: content-aware video coding; video communication; video processing; audio processing; multimedia processing; peer-peer media communication; multimedia networking; human perception; multimedia database; human-machine interface; networks and coding; multimedia systems; biomedical application; multimedia assurance; image(More)