Advanced Process Optimization

Activity of the research laboratory

Research topics of the laboratory cover integer and mixed integer linear programming models for design, analysis, optimization and decision support of complex processes and systems. The application of the results ranges from the inter-cellular processes, through the industrial production systems, to the supply-chain networks. The P-graph methodology provides the theoretical background for the conceptual design of the processes, while the S-graph methodology for the scheduling and the resource allocation. Both methodologies were established by Ferenc Friedler, the Head of the laboratory, and his international research collaborators. The methodologies are proven to be correct mathematically and cover the whole process from the problem formulation, through modeling and model analysis, to the practical interpretation of the best results. The developed software applications based on these methodologies not only guaranty the optimality of the generated solutions of the practical problems, but they are competitive in computational time with the best optimization software on the market, as well.

Research results

The results of the Process Systems Research Laboratory belong to the topic of analysis and optimization of industrial and business processes. The P-graph methodology for process synthesis and optimization, and the S-graph framework for scheduling and resource allocation, are the major results of the laboratory. The algorithms resulted from the development of these two methodologies have been implemented and tested on industrial problems. The results often proposed better solutions and more efficient algorithms in comparison to the most state of the art results published in the scientific literature. They also proposed solution methods for problems not manageable with other methodologies. The research laboratory has published the corrections of former inaccurate results as well as the procedures proven to generate correct solution.
In recent R&D projects applications have been implemented for preliminary risk analysis of business processes using the S-graph methodology, and for the optimization of logistics processes using the P-graph framework. For example the following systems have been implemented: the resource management of a travelling agency, vehicle routing problem for daily newspaper delivery, and the scheduling of the suppliers of a power plant.

Introduction of the head

friedler-ferenc-1Ferenc Friedler mathematician (University of Szeged, 1977), CSc (chemical engineering, Hungarian Academy of Sciences, 1990), “dr. Univ.” (University of Szeged, 1991), DSc (chemical engineering, Hungarian Academy of Sciences, 1995), Dr. habil (engineering in information technology, University of Veszprem, 1999). He possesses several awards and prizes: Knight's Cross Order of Merit of the Republic of Hungary (The President of the Republic of Hungary), 2003; László Kalmár Prize (John von Neumann Computer Science Society), Budapest, Hungary, 2003; Prima Prize, Veszprém County, Hungary, 2006; Polinszky Prize, Veszprém, Hungary, 2006; Neumann Prize (John von Neumann Computer Science Society), Budapest, Hungary, 2007; Leó Szilárd Professorship, Budapest, Hungary, 2008; Dennis Gabor Prize, Budapest, Hungary, 2008; Silver Plaquette, Regional Centre of the Hungarian Academy of Sciences, Veszprém, Hungary, 2009; Széchenyi Prize, Budapest, Hungary, 2010; Bolyai Memorial Award, Budapest, Hungary, 2010; Egerváry Jenő Memorial Award, Hungarian Operations Research Society, Budapest, Hungary, 2010. Ferenc Friedler was born in Veszprém, and after his graduation he came back to Veszprém to the Chemical Engineering Institute of the Hungarian Academy of Sciences, which was located in the building presently hosting the Faculty of Information Technology. Professor Friedler was the founding dean of the Faculty of Information Technology and founding head of its predecessor individual institute. He is the rector of the University of Pannonia.
As an influential part of his career he has spent one and a half year in the USA, invited by professor L. T. Fan. During this period, they have published the P-graph methodology, which is the key for solving several engineering optimization problems. Based on the international recognition of the methodology professor Fiedler and his colleagues receive numerous invitations to participate in international research projects, where elaboration of tools with unique effectiveness is needed for analyzing complex processes. The S-graph framework is resulted from such an invitation in 1999.

Further information on webpage:

the project is supported
hungarys renewal
szechenyi plan
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