This paper establishes a direct method for solving variational problems via a set of Radial basis functions (RBFs) with Gauss-Chebyshev collocation centers. The method consist of reducing a variational problem into a mathematical programming problem. The authors use some optimization techniques to solve the reduced problem. Accuracy and stability of the multiquadric, Gaussian and inverse multiq...

The level of risk an investor can endure, known as risk-preference, is a subjective choice that tightly related to psychology and behavioral science in decision making. This paper presents novel approach measuring preference from existing portfolios using inverse optimization on mean–variance portfolio allocation framework. Our allows the learner continuously estimate real-time preferences conc...