Projects per year
Researchers and analysts are increasingly using mixed logit models for estimating responses to forecast demand and to determine the factors that affect individual choices. However the numerical cost associated to their evaluation can be prohibitive, the inherent probability choices being represented by multidimensional integrals. This cost remains high even if Monte Carlo or quasi-Monte Carlo techniques are used to estimate those integrals. This paper describes a new algorithm that uses Monte Carlo approximations in the context of modern trust-region techniques, but also exploits accuracy and bias estimators to considerably increase its computational efficiency. Numerical experiments underline the importance of the choice of an appropriate optimisation technique and indicate that the proposed algorithm allows substantial gains in time while delivering more information to the practitioner.
|Number of pages||25|
|Journal||Computational Management Science|
|Publication status||Published - 1 Jan 2006|
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ADALGOPT: ADALGOPT - Advanced algorithms in nonlinear optimization
1/01/87 → …
Project: Research Axis
An activity based framework for estimating travel demand in Belgium
TOINT, P. & CIRILLO, C.
1/01/06 → 31/08/06