I trying to implement SVM implementation. During this problem I need to solve nonlinear optimization problem. Could anyone advice me a lib for that for .NET platform thanks a lot.
If someone could advice something which he used for SVM it will be brilliant.
I assume that acronym SVM in your question means Support Vector Machine. In this case you need solver for linear or quadratic programming (depends on the formulation). I can name several libraries for .NET platform that contains linear or quadratic programming solvers:
All of them are commercial software (but most of provide special academic license for non-commercial use for small amount of money). Also, most of the professional libraries for numerical optimization like MOSEK, CPLEX, Gurobi etc. contain wrappers for .NET platform.