Department of Mathematical Sciences, Florida Institute of Technology, 150 W University Blvd, Melbourne, FL 32901, USA.
Department of Mathematical Sciences, Florida Institute of Technology, 150 W University Blvd, Melbourne, FL 32901, USA.
Math Biosci. 2018 Nov;305:133-145. doi: 10.1016/j.mbs.2018.09.004. Epub 2018 Sep 12.
We consider the inverse problem for the identification of the finite dimensional set of parameters for systems of nonlinear ordinary differential equations (ODEs) arising in systems biology. A numerical method which combines Bellman's quasilinearization with sensitivity analysis and Tikhonov's regularization is implemented. We apply the method to various biological models such as the classical Lotka-Volterra system, bistable switch model in genetic regulatory networks, gene regulation and repressilator models from synthetic biology. The numerical results and application to real data demonstrate the quadratic convergence.
我们考虑了系统生物学中出现的非线性常微分方程(ODE)系统的参数有限维集的辨识反问题。实现了一种将 Bellman 的拟线性化与灵敏度分析和 Tikhonov 正则化相结合的数值方法。我们将该方法应用于各种生物模型,例如经典的 Lotka-Volterra 系统、遗传调控网络中的双稳态开关模型、基因调控和合成生物学中的阻遏子模型。数值结果和对真实数据的应用表明了二次收敛性。