Publications of Giampaolo Liuzzi

This page shows all publications that appeared in the IASI annual research reports. Authors currently affiliated with the Institute are always listed with the full name.

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IASI Research Report n. 09-22  (Previous    Next)  

Giampaolo Liuzzi, Risi A.

A decomposition algorithm for unconstrained optimization problems with partial derivative information

ABSTRACT
In this paper we consider the problem of minimizing a nonlinear function using partial derivative knowledge. Namely, the objective function is such that its derivatives with respect to a prespecified block of variables cannot be computed. To solve the problem we propose a block decomposition method that takes advantage of both derivative-free and derivative-based iterations to account for the features of the objective function. Under quite standard assumptions, we manage to prove global convergence of the method to stationary points of the problem.
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