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EOR
2007
85views more  EOR 2007»
13 years 7 months ago
Reject inference, augmentation, and sample selection
Many researchers see the need for reject inference in credit scoring models to come from a sample selection problem whereby a missing variable results in omitted variable bias. Al...
John Banasik, Jonathan Crook
EOR
2007
62views more  EOR 2007»
13 years 7 months ago
Economic order quantity under conditionally permissible delay in payments
Within the economic order quantity (EOQ) framework, the main purpose of this paper is to investigate the retailerÕs optimal replenishment policy under permissible delay in paymen...
Yung-Fu Huang
EOR
2007
101views more  EOR 2007»
13 years 7 months ago
Using aggregation to optimize long-term production planning at an underground mine
Motivated by an underground mining operation at Kiruna, Sweden, we formulate a mixed integer program to schedule iron ore production over multiple time periods. Our optimization m...
Alexandra M. Newman, Mark Kuchta
EOR
2007
69views more  EOR 2007»
13 years 7 months ago
Optimizing the periodic pick-up of raw materials for a manufacturer of auto parts
— We describe a solution procedure for a special case of the periodic vehicle routing problem (PVRP). Operation managers at an auto parts in the north of Spain described the opti...
Jesús F. Alegre, Manuel Laguna, Joaqu&iacut...
EOR
2007
93views more  EOR 2007»
13 years 7 months ago
Contour line construction for a new rectangular facility in an existing layout with rectangular departments
In a recent paper, Savas, Batta and Nagi [14] consider the optimal placement of a finite-sized facility in the presence of arbitrarily-shaped barriers under rectilinear travel. T...
Hari Kelachankuttu, Rajan Batta, Rakesh Nagi