@TH_Koeln: Showcase Medieninformatik

Am nächsten Dienstag findet wieder der alljährliche Medieninformatik Showcase an der TH Köln, Campus Gummersbach, statt.
Hier der Zeitplan (weitere Infos bei Prof. Christian Noss):

13:00 – 14:00 Uhr Vorträge im Raum 3.216 (Medieninformatik Studio)
14:00 – 17:00 Uhr Ausstellung im Foyer
16:00 – 18:00 Uhr Filme im Raum 3.216 (Medieninformatik Studio)

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Free Preprint: Model-based Methods for Continuous and Discrete Global Optimization

The paper “Model-based Methods for Continuous and Discrete Global Optimization” (T. Bartz-Beielstein, M. Zaefferer) is available for download via Cologne Open Science: https://cos.bibl.th-koeln.de/frontdoor/index/index/docId/435.
Surrogate models gained importance for discrete optimization problems. This paper presents a survey of model-based methods, focusing on continuous optimization. It introduces a taxonomy, which is useful as a guideline for selecting adequate model-based optimization tools, and provides details for the case of discrete optimization problems. Six strategies for dealing with discrete data structures are introduced.
A new approach for combining surrogate information via stacking is proposed. The implementation of this approach will be available in the open source R package SPOT2. The article concludes with a discussion of recent developments and challenges in both application domains. Continue reading

New Paper: A Surrogate Model Assisted EA for Computationally Expensive Design Optimization Problems with Discrete Variables

The paper “A surrogate model assisted evolutionary algorithm for computationally expensive design optimization problems with discrete variables” focuses on discrete numerical variables, which are sometimes unavoidable in product design and manufacturing. It was written by Bo Liu (Department of Computing, Glyndwr University, UK), Nan Sun (Department of Engineering, Glyndwr University, UK),  Qingfu Zhang (Department of Computer Science, City University of Hong Kong, Kowloon, Hong Kong SAR), Vic Grout (Department of Computing, Glyndwr University, UK), and Georges Gielen (ESAT-MICAS, Katholieke Universiteit Leuven, Belgium). The paper can be  accessed here: http://ieeexplore.ieee.org/abstract/document/7743986/

Related papers, e.g., M. Zaefferer, J. Stork, and T. Bartz-Beielstein, “Distance Measures for Permutations in Combinatorial Efficient Global Optimization” can be found on the SPOTSeven publication page http://www.spotseven.de/publications/.

26. Workshop Computational Intelligence started

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Frank Hoffmann welcomes the participants of the 26. Workshop Computational Intelligence in Dortmund.
The first talk is by Anne Now (Vrije Universiteit Brussel) about “Multi-Criteria reinforcement learning”.
There are two contributions from the SPOTSeven team and Prof. Bartz-Beielstein will be chairing a session in the afternoon.