Genetic programming for the approximation of GPS GDOP. - Chih-Hung Wu; Ya-Wei Ho (ICMLC, 2010)

A Study on GPS GDOP Approximation Using Support-Vector Machines. - Chih-Hung Wu; Wei-Han Su; Ya-Wei Ho (IEEE Trans. Instrum. Meas., 2011)

Discovering approximate expressions of GPS geometric dilution of precision using genetic programming. - Chih-Hung Wu; Ya-Wei Ho; Li-Wun Chen; You-Dong Huang (Adv. Eng. Softw., 2012)