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New algorithm for Project Scheduling Problem
Scheduling of a project with constrained resources is a NP Complete
problem.In this paper we obtain effective and efficient criteria in serial
and parallel methods and also compare these procedures in ...
An Optimal NPV Project Scheduling with Fixed Work Content and Payment on Milestones
We consider a project scheduling problem with permitted tardiness and discrete time/resource trade-offs under maximum net present value objective. In this problem, a project consists of a set of sequential phases such that each phase contains one...
Resource-Constrained Project Scheduling Problem with Flexible Work Profiles: A Genetic Algorithm Approach
This paper deals with the resource-constrained project scheduling problem with flexible work profiles. In this problem, a project contains activities interrelated by finish-start-type precedence constraints with a time lag of zero. In many real...
Population-based metaheuristics for R&D project scheduling problems under activity failure risk
In this paper, we study scheduling of R&D projects in which activities may to be failed due to the technological risks. We consider two introduced problems in the literature referred to as R&D Project Scheduling Problem (RDPSP) and Alternative...
One-by-one or altogether: The advantages of pursuing alternative innovation activities
as an alternative-technologies project and in this paper we consider the alternative-technologies project scheduling problem. We examine how to schedule alternative R&D activities in order to maximize the expected net present value, when each technology has a cost...
A path-relinking metaheuristic for the resource leveling problem
This paper deals with project scheduling problem with resource leveling objective function where precedence relations among activities are prescribed. We develop a dedicated path-relinking metaheuristic algorithm to tackle this problem...
Optimal selection of project portfolios using reinvestment strategy within a flexible time horizon
to optimize three issues: combination of projects, schedule of the selected projects and the time horizon. An integer program is presented and discussed to address the given issues....
Solving the resource-constrained project scheduling problem using filter-and-fan approach
The resource-constrained project scheduling problem is a notoriously difficult problem in combinatorial optimization for which extensive investigation has been devoted to the development of efficient algorithms to find optimal or near...