稀疏模式 meaning in English

arsitypattern
sparsity pattern

( 4 ) on the efficient method for the dynamical core of the new generation multi - scale forecasting model i ) we present a new multi - level sparse approximate inverse preconditnioner for the complicated 3 - d helmholtz equations in the new generation weather forecasting model . as a result , the new sparse approximate inverse preconditioned gcr and gmres algorithms are given and successfully applied in the dynamical core . numerical tests show that the new algorithms perform very efficiently , and can greatly improve the efficiency of numerical model
对此，本文提出了一种基于逐层门限技术的近似逆矩阵稀疏模式预选方法，并构造了相应的稀疏近似逆预条件子，结合gcr算法和g州[ r卫s算法，首次将逐层门限稀疏近似逆预条件子应用于新一代多尺度预报模式动力内核的实际计算，数值实验表明这里给出的方法可以大大提高数值模式的计算效率。