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- W2364185415 abstract "Through practice analysis,we put forward to the whole optimization problem of two-stage project portfolio selection under double scenarios.A model of bi-level 0-1 integer programming model is established,in which upperlevel model is in deterministic scenario,with optimization objective being the maximization of the value of projects,which have been selected within two stages,lower layer model was uncertain sense,with optimization objective being the maximization of expected value of projects that have been selected at the second stage,and the ratio of variance and expected value adopted as risk constraint.Deterministic conversion is executed to lower layer model by using possibility theory.Based on Genetic algorithm(GA),through development of Path Relinking(PR),the algorithm of GA+PR is designed,simulation test shows the effectiveness of the method.Several optimization results are obtained with different risk indexes.Through test analysis,some robust core projects are presented.This paper finally provides guidance for the decision makeing of enterprises in project portfolio selection." @default.
- W2364185415 created "2016-06-24" @default.
- W2364185415 creator A5050056275 @default.
- W2364185415 date "2010-01-01" @default.
- W2364185415 modified "2023-09-24" @default.
- W2364185415 title "The Whole Optimization Modelof Two-stage Project Portfolio Selection under Double Scenarios" @default.
- W2364185415 hasPublicationYear "2010" @default.
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