Walter J. Gutjahr

According to our database1, Walter J. Gutjahr authored at least 61 papers between 1991 and 2018.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.



In proceedings 
PhD thesis 




Equity and deprivation costs in humanitarian logistics.
European Journal of Operational Research, 2018

Efficient pairwise preference elicitation allowing for indifference.
Computers & OR, 2017

Modelling beneficiaries' choice in disaster relief logistics.
Annals OR, 2017

Bi-objective stochastic programming models for determining depot locations in disaster relief operations.
ITOR, 2016

Multicriteria optimization in humanitarian aid.
European Journal of Operational Research, 2016

Stochastic multi-objective optimization: a survey on non-scalarizing methods.
Annals OR, 2016

Bi-Objective Multi-Mode Project Scheduling Under Risk Aversion.
European Journal of Operational Research, 2015

Using Indifference Information in Robust Ordinal Regression.
Proceedings of the Evolutionary Multi-Criterion Optimization, 2015

A math-heuristic for the warehouse location-routing problem in disaster relief.
Computers & OR, 2014

Runtime Analysis of an Evolutionary Algorithm for Stochastic Multi-Objective Combinatorial Optimization.
Evolutionary Computation, 2012

The bi-objective stochastic covering tour problem.
Computers & OR, 2012

Exact hybrid algorithms for solving a bi-objective vehicle routing problem.
CEJOR, 2012

A Three-Objective Optimization Approach to Cost Effectiveness Analysis Under Uncertainty.
Proceedings of the Operations Research Proceedings 2012, 2012

Recent trends in metaheuristics for stochastic combinatorial optimization.
Central Europ. J. Computer Science, 2011

A Bi-objective Metaheuristic for Disaster Relief Operation Planning.
Proceedings of the Advances in Multi-Objective Nature Inspired Computing, 2010

Convergence Analysis of Metaheuristics.
Proceedings of the Matheuristics - Hybridizing Metaheuristics and Mathematical Programming, 2010

Dynamic Policy Modeling for Chronic Diseases: Metaheuristic-Based Identification of Pareto-Optimal Screening Strategies.
Operations Research, 2010

Multi-objective decision analysis for competence-oriented project portfolio selection.
European Journal of Operational Research, 2010

A survey on metaheuristics for stochastic combinatorial optimization.
Natural Computing, 2009

A multicriteria Decision Support System for Competence-Driven Project Portfolio Selection.
International Journal of Information Technology and Decision Making, 2009

A provably convergent heuristic for stochastic bicriteria integer programming.
J. Heuristics, 2009

Search-based software engineering.
Computers & OR, 2008

First steps to the runtime complexity analysis of ant colony optimization.
Computers & OR, 2008

Competence-driven project portfolio selection, scheduling and staff assignment.
CEJOR, 2008

Mathematical runtime analysis of ACO algorithms: survey on an emerging issue.
Swarm Intelligence, 2007

Multicriteria tour planning for mobile healthcare facilities in a developing country.
European Journal of Operational Research, 2007

An ACO algorithm for a dynamic regional nurse-scheduling problem in Austria.
Computers & OR, 2007

Combined Discrete-event Simulation and Ant Colony Optimisation Approach for Selecting Optimal Screening Policies for Diabetic Retinopathy.
Comput. Manag. Science, 2007

A VNS Algorithm for Noisy Problems and Its Application to Project Portfolio Analysis.
Proceedings of the Stochastic Algorithms: Foundations and Applications, 2007

Enriched workflow modelling and Stochastic Branch-and-Bound.
European Journal of Operational Research, 2006

Pareto ant colony optimization with ILP preprocessing in multiobjective project portfolio selection.
European Journal of Operational Research, 2006

Interaction dynamics of two reinforcement learners.
CEJOR, 2006

Two Metaheuristics for Multiobjective Stochastic Combinatorial Optimization.
Proceedings of the Stochastic Algorithms: Foundations and Applications, 2005

Pareto Ant Colony Optimization: A Metaheuristic Approach to Multiobjective Portfolio Selection.
Annals OR, 2004

S-ACO: An Ant-Based Approach to Combinatorial Optimization Under Uncertainty.
Proceedings of the Ant Colony Optimization and Swarm Intelligence, 2004

A Converging ACO Algorithm for Stochastic Combinatorial Optimization.
Proceedings of the Stochastic Algorithms: Foundations and Applications, 2003

Extracting Test Sequences from a Markov Software Usage Model by ACO.
Proceedings of the Genetic and Evolutionary Computation, 2003

ACO algorithms with guaranteed convergence to the optimal solution.
Inf. Process. Lett., 2002

Using a Reliability Growth Model to Control Software Inspection.
Empirical Software Engineering, 2002

A branch-and-bound approach to the optimization of redundant software under failure correlation.
Computers & OR, 2002

A reliability model for nonhomogeneous redundant software versions with correlated failures.
Comput. Syst. Sci. Eng., 2001

Influence Of Team Size And Defect Detection Technique On Inspection Effectiveness.
Proceedings of the 7th IEEE International Software Metrics Symposium (METRICS 2001), 2001

Software dependability evaluation based on Markov usage models.
Perform. Eval., 2000

Representation and optimization of software usage models with non-Markovian state transitions.
Information & Software Technology, 2000

A Stochastic Branch-and-Bound Approach to Activity Crashing in Project Management.
INFORMS Journal on Computing, 2000

A Graph-based Ant System and its convergence.
Future Generation Comp. Syst., 2000

Crashing of stochastic processes by sampling and optimisation.
Business Proc. Manag. Journal, 2000

Partition Testing vs. Random Testing: The Influence of Uncertainty.
IEEE Trans. Software Eng., 1999

Optimal stochastic single-machine-tardiness scheduling by stochastic branch-and-bound.
European Journal of Operational Research, 1999

Reliability optimization of redundant software with correlated failures.
Proceedings of the Ninth International Symposium on Software Reliability Engineering, 1998

Task Assignment in Cayley Interconnection Topologies.
Parallel Computing, 1997

Simulated Annealing for noisy cost functions.
J. Global Optimization, 1996

Optimal Test Distributions for Software Failure Cost Estimation.
IEEE Trans. Software Eng., 1995

Connection Reliabilities in Stochastic Acyclic Networks.
Random Struct. Algorithms, 1994

A global optimization problem in series-parallel networks with maximum reliability.
J. Global Optimization, 1994

Expectation Transfer between Branching Processes and Random Trees.
Random Struct. Algorithms, 1993

Automatische Testdatengenerierung zur Unterstützung des Softwaretests.
Inform., Forsch. Entwickl., 1993

The Variance of Level Numbers in Certain Families of Trees.
Random Struct. Algorithms, 1992

The limiting common distribution of two leaf heights in a random brinary tree.
ITA, 1992

The asymptotic distribution of leaf heights in binary trees.
Graphs and Combinatorics, 1992

Uniform random generation of expressions respecting algebraic identities.
Computing, 1991