大变异 meaning in English
antigenic shift
Examples
- In part that ' s because occasionally the flu will change radically in what is called a " shift " and take humans by such complete surprise that a pandemic erupts
部分原因是流感病毒有时候会完全变了一个样，称为大变异，让人类惊觉流感已爆发大流行。 - Through studying the simulation results and compared with the other algorithms , the big mutation hybrid algorithm improves convergence accuracy and convergence probability and reduce convergence generation , therefore it is worth further researching
通过仿真研究和与其他方法的比较，该大变异单纯形混合遗传算法在收敛精度、收敛代数、收敛率方面都有所提高，具有一定的研究价值。 - This hybrid algorithm applicates pattern search on each individual afer crossover operator and mutation operator of genetic algorithm , and improve the mutation operator to the big mutation operator in order to speeding convergence
本文提出的算法是在遗传算法的交叉和变异算子之后对每个个体进行单纯形局部寻优的单纯形混合遗传算法，并且对变异算子进行了改进，采用大变异算子，以达到加快收敛速度的目的。 - The parameter can be adjusted adaptively by incorporating population entropy into the algorithm to provide a quantitative measure of population diversity of individuals in the population and new individuals can be introduced into the population by a big - mutation operation when the individuals in the population tend to be consistent . the case study shows that the algorithm can alleviate the problem of premature convergence as well as improve the efficiency and scope of searching
本研究将信息嫡引入遗传算法以度量种群的多样性;当判断其发生过早收敛时，则通过“大变异”操作来引入新个体，从而有效缓解了成熟前收敛的发生，提高了算法搜索的范围与效率。