Monthly Archives: April 2015

Prof. Bartz-Beielstein Keynote Speaker at BIOMA 2016


BIOMA 2016, the 7th International Conference on Bioinspired Optimization Methods and their Applications will be held in Bled, Slovenia, 18-20 May 2016. The purpose of the conference is to provide a forum for presentation and discussion of the latest theoretical and applied results in bioinspired optimization methodology and its applications. Areas of interest include genetic algorithms, evolution strategies, evolutionary programming, genetic programming, ant colony optimization, swarm optimization and related bioinspired methods, and their applications in science, engineering, and business. Accepted papers will be published in the conference proceedings, and extended versions of selected papers will be invited for submission to Applied Soft Computing (Elsevier). The conference is organized by the Jožef Stefan Institute and supported by SLAIS. Prof. Bartz-Beielstein accepted to be the conference keynote speaker.
BIOMA 2016 is organized by Jurij Šilc (Chair), Bogdan Filipič, Vesna Koricki Špetič, Peter Korošec, and Vida Vukašinović.

Patryk Filipiak Talking About “Proactive Evolutionary Algorithms” in SPOTSeven’s Doctoral Seminar

P. FilipiakPatryk Filipiak, a junior lecturer at the Institute of Computer Science, University of Wroclaw (Poland), visited SPOTSeven lab in March. He is finalizing his PhD thesis concerning the behavior of “Proactive Evolutionary Algorithms in the Dynamic Constrained Optimization Problems” (DCOPs).
He proposed anticipation strategies that can speed up a convergence of candidate solutions in a class of DCOPs and applied these strategies to inverse kinematics problems. Patrick gave an interesting talk in SPOTSeven’s doctoral seminar. The beginning of his talk is shown in the following short video: http://www.gm.fh-koeln.de/~bartz/Videos.d/filipiak.m4v

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EGO, SPO, SPO+, and more

Steven Ramage from University of British Columbia (UBC) describes the SPO development and the results from the cooperation between UBC and the SPOTSevenLab (Cologne University of Applied Sciences) as follows:

Experimental Methods

Results from the cooperation between UBC and SPOTSeven are published in the book “Experimental Methods for the Analysis of Optimization Algorithms”.

“Bartz-Beielstein et al. [2005] adapted EGO to the optimization of algorithms, with their Sequential Parameter Optimization (SPO) method. SPO uses the same acquisition functions as EGO, but a slightly different model, which includes a second order polynomial fit as well as the standard Gaussian process model. Unlike EGO, their approach is able to deal with random response values through a continual resampling of the best observed points using a doubling strategy, which allows the estimate to converge to the true value over time. Finally, as opposed to fitting the model with each sample point individually, as done by SKO, SPO merges the samples for each point into a better estimate of the objective at that point, and then fits the model on these merged estimates.
Hutter et al. [2009a] directly compared SPO and SKO and their suitability for algorithm configuration. They found that SPO in general outperformed SKO on the algorithms they studied. They also introduced SPO+, which introduced some modifications to the original algorithm….” Continue reading

Einladung nach Brüssel

Screen Shot 2015-04-15 at 23.51.30Prof. Bartz-Beielstein wurde vom DAAD als Referent für das in Brüssel stattfindende europäische Expertenseminar “Dual Learning – Combining Practice-Orientated and Theoretical Learning in Higher Education” eingeladen. Im Rahmen dieses Seminars werden ca. 25-30 europäische Experten (insbesondere Vertreter aus den Ministerien der EU Mitgliedstaaten und der Ständigen Vertretungen in Brüssel) zusammenkommen, um sich zu den unterschiedlichen Formen der aus Praxis und Theorie kombinierten Studienprogrammen auszutauschen. Von deutscher Seite sollen sowohl die klassischen dualen Studiengänge, als auch Studiengänge, die in anderer strukturierter Form Praxis und Theorie miteinander verbinden, vorgestellt werden.
Von besonderem Interesse ist dabei die enge Verzahnung von Theorie und Praxis in den Studiengängen, zu der auch das SPOTSeven Lab durch seine vielfältigen Industriekontakte beiträgt. Ein Ziel des Seminar besteht darin, interessierten Partnerländern aufzuzeigen, welche unterschiedlichen Wege in der Einführung praxisorientierter Hochschulbildung gegangen werden können.