中文摘要：

微分方程（组）系统是常见的一类生物数学模型．我们利用模型对应的Picard算子的压缩性和Collage定理，提出一类模型参数的反演算法，并通过数值例子说明了方法的有效性．

英文摘要：

Differential equations are one of common equations in biology mathematics systems. In this paper, a parameter-recovering algorithm for differential equations is developed, which based on Picard contraction mapping and Collage theorem. The numerical results illustrate feasibility and effectiveness of the proposed method.