| Open Document File Size: 697,79 KBShare Result on Facebook
City London / New York / / Company Wilson / / Country United States / Scotland / / Event Environmental Issue / / IndustryTerm resistive electrical network / computer algorithms / quadratic transportation problem / feasible solution / simpler solution / workable primal solution / constrained quadratic programming algorithm / e-β / non-negative integral solution / model linear transportation costs / travel time / nonlinear transportation problem / present several computational algorithms / transportation context / conventional linear transportation problem / linear transportation problem / / Organization Bureau of the Census / US Bureau of the Census / Helmholz / / Person Guido Dorigo / Waldo Tobler / Clark / Ernst Ravenstein / Ballard / / Position attractivity gradient model for net movement rates / model / candidate for correlation and regression studies / geographer / / ProvinceOrState California / New York / / Technology artificial intelligence / computer algorithms / constrained quadratic programming algorithm / / |
PUSH PULL MIGRATION LAWS x Guido Dorigo* and Waldo Tobler † Abstract: The mathematics of a push-pull model are shown to incorporate many of Ravenstein’s laws of migration, to be equivalent to a quadratic transportati