Stefan Katzensteiner

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This paper presents a new model for project portfolio selection, paying specific attention to competence development. The model seeks to maximize a weighted average of economic gains from projects and strategic gains from the increment of desirable competencies. As a sub-problem, scheduling and staff assignment for a candidate set of selected projects must(More)
0377-2217/$ see front matter 2010 Elsevier B.V. A doi:10.1016/j.ejor.2010.01.041 * Corresponding author. Tel.: +43 1 4277 38632; fa E-mail address: walter.gutjahr@univie.ac.at (W.J. G This paper develops a multi-objective optimization model for project portfolio selection taking employee competencies and their evolution into account. The objectives can(More)
Motivated by an application in project portfolio analysis under uncertainty, we develop an algorithm S-VNS for solving stochastic combinatorial optimization (SCO) problems based on the Variable Neighborhood Search (VNS) metaheuristic, and show its theoretical soundness by a mathematical convergence result. S-VNS is the first generalpurpose algorithm for SCO(More)
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