@inproceedings{10676, author = {{Ho, Nam and Kaufmann, Paul and Platzner, Marco}}, booktitle = {{2017 International Conference on Field Programmable Technology (ICFPT)}}, keywords = {{Linux, cache storage, microprocessor chips, multiprocessing systems, LEON3-Linux based multicore processor, MiBench suite, block sizes, cache adaptation, evolvable caches, memory-to-cache-index mapping function, processor caches, reconfigurable cache mapping optimization, reconfigurable hardware technology, replacement strategies, standard Linux OS, time a complete hardware implementation, Hardware, Indexes, Linux, Measurement, Multicore processing, Optimization, Training}}, pages = {{215--218}}, title = {{{Evolvable caches: Optimization of reconfigurable cache mappings for a LEON3/Linux-based multi-core processor}}}, doi = {{10.1109/FPT.2017.8280144}}, year = {{2017}}, } @inproceedings{10761, author = {{Kaufmann, Paul and Ho, Nam and Platzner, Marco}}, booktitle = {{Adaptive Hardware and Systems (AHS)}}, publisher = {{IEEE}}, title = {{{Evaluation Methodology for Complex Non-deterministic Functions: A Case Study in Metaheuristic Optimization of Caches}}}, doi = {{10.1109/AHS.2017.8046380}}, year = {{2017}}, } @techreport{11735, abstract = {{This report describes the computation of gradients by algorithmic differentiation for statistically optimum beamforming operations. Especially the derivation of complex-valued functions is a key component of this approach. Therefore the real-valued algorithmic differentiation is extended via the complex-valued chain rule. In addition to the basic mathematic operations the derivative of the eigenvalue problem with complex-valued eigenvectors is one of the key results of this report. The potential of this approach is shown with experimental results on the CHiME-3 challenge database. There, the beamforming task is used as a front-end for an ASR system. With the developed derivatives a joint optimization of a speech enhancement and speech recognition system w.r.t. the recognition optimization criterion is possible.}}, author = {{Boeddeker, Christoph and Hanebrink, Patrick and Drude, Lukas and Heymann, Jahn and Haeb-Umbach, Reinhold}}, title = {{{On the Computation of Complex-valued Gradients with Application to Statistically Optimum Beamforming}}}, year = {{2017}}, } @inproceedings{11736, abstract = {{In this paper we show how a neural network for spectral mask estimation for an acoustic beamformer can be optimized by algorithmic differentiation. Using the beamformer output SNR as the objective function to maximize, the gradient is propagated through the beamformer all the way to the neural network which provides the clean speech and noise masks from which the beamformer coefficients are estimated by eigenvalue decomposition. A key theoretical result is the derivative of an eigenvalue problem involving complex-valued eigenvectors. Experimental results on the CHiME-3 challenge database demonstrate the effectiveness of the approach. The tools developed in this paper are a key component for an end-to-end optimization of speech enhancement and speech recognition.}}, author = {{Boeddeker, Christoph and Hanebrink, Patrick and Drude, Lukas and Heymann, Jahn and Haeb-Umbach, Reinhold}}, booktitle = {{Proc. IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP)}}, title = {{{Optimizing Neural-Network Supported Acoustic Beamforming by Algorithmic Differentiation}}}, year = {{2017}}, } @inproceedings{1180, abstract = {{These days, there is a strong rise in the needs for machine learning applications, requiring an automation of machine learning engineering which is referred to as AutoML. In AutoML the selection, composition and parametrization of machine learning algorithms is automated and tailored to a specific problem, resulting in a machine learning pipeline. Current approaches reduce the AutoML problem to optimization of hyperparameters. Based on recursive task networks, in this paper we present one approach from the field of automated planning and one evolutionary optimization approach. Instead of simply parametrizing a given pipeline, this allows for structure optimization of machine learning pipelines, as well. We evaluate the two approaches in an extensive evaluation, finding both approaches to have their strengths in different areas. Moreover, the two approaches outperform the state-of-the-art tool Auto-WEKA in many settings.}}, author = {{Wever, Marcel Dominik and Mohr, Felix and Hüllermeier, Eyke}}, booktitle = {{27th Workshop Computational Intelligence}}, location = {{Dortmund}}, title = {{{Automatic Machine Learning: Hierachical Planning Versus Evolutionary Optimization}}}, year = {{2017}}, } @phdthesis{16070, author = {{Weiß Borkowski, Nathalie }}, isbn = {{978-3-8440-5013-4}}, publisher = {{Shaker Verlag Band 2017/22}}, title = {{{Analyse des Verformungsverhaltens von Übergangszonen partiell pressgehärteter Strukturen}}}, year = {{2017}}, } @inproceedings{16075, author = {{Ahlers, Dominik and Tröster, Thomas}}, location = {{Nördlingen}}, title = {{{Aspekte der Produktentwicklung in der additiven Fertigung}}}, year = {{2017}}, } @inproceedings{16338, abstract = {{To detect errors or find potential for improvement during the CAD-supported development of a complex technical system like modern industrial machines, the system’s virtual prototype can be examined in virtual reality (VR) in the context of virtual design reviews. Besides exploring the static shape of the examined system, observing the machines’ mechanics (e.g., motor-driven mechanisms) and transport routes for the material transport (e.g., via conveyor belts or chains, or rail-based transport systems) can play an equally important role in such a review. In practice it is often the case, that the relevant information about transport routes, or kinematic properties is either not consequently modeled in the CAD data or is lost during conversion processes. To significantly reduce the manual effort and costs for creating animations of the machines complex behavior with such limited input data for a design review, we present a set of algorithms to automatically determine geometrical properties of machine parts based only on their triangulated surfaces. The algorithms allow to detect the course of transport systems, the orientation of objects in 3d space, rotation axes of cylindrical objects and holes, the number of tooth of gears, as well as the tooth spacing of toothed racks. We implemented the algorithms in the VR system PADrend and applied them to animate virtual prototypes of real machines.}}, author = {{Brandt, Sascha and Fischer, Matthias and Gerges, Maria and Jähn, Claudius and Berssenbrügge, Jan}}, booktitle = {{Volume 1: 37th Computers and Information in Engineering Conference}}, isbn = {{9780791858110}}, location = {{Cleveland, USA}}, pages = {{91:1--91:10}}, title = {{{Automatic Derivation of Geometric Properties of Components From 3D Polygon Models}}}, doi = {{10.1115/detc2017-67528}}, volume = {{1}}, year = {{2017}}, } @inproceedings{16339, abstract = {{In der CAD-unterstützten Entwicklung von technischen Systemen (Maschinen, Anlagen etc.) werden virtuelle Prototypen im Rahmen eines virtuellen Design-Reviews mit Hilfe eines VR-Systems gesamtheitlich betrachtet, um frühzeitig Fehler und Verbesserungsbedarf zu erkennen. Ein wichtiger Untersuchungsgegenstand ist dabei die Analyse von Transportwegen für den Materialtransport mittels Fließbändern, Förderketten oder schienenbasierten Transportsystemen. Diese Transportwege werden im VR-System animiert. Problematisch dabei ist, dass derartige Transportsysteme im zugrundeliegenden CAD-Modell in der Praxis oft nicht modelliert und nur exemplarisch angedeutet werden, da diese für die Konstruktion nicht relevant sind (z.B. der Fördergurt eines Förderbandes, oder die Kette einer Förderkette), oder die Informationen über den Verlauf bei der Konvertierung der Daten in das VR-System verloren gehen. Bei der Animation dieser Transportsysteme in einem VR-System muss der Transportweg also aufwändig, manuell nachgearbeitet werden. Das Ziel dieser Arbeit ist die Reduzierung des notwendigen manuellen Nachbearbeitungsaufwandes für das Design-Review durch eine automatische Berechnung der Animationspfade entlang eines Transportsystems. Es wird ein Algorithmus vorgestellt, der es ermöglicht mit nur geringem zeitlichem Benutzeraufwand den Animationspfad aus den reinen polygonalen dreidimensionalen Daten eines Transportsystems automatisch zu rekonstruieren.}}, author = {{Brandt, Sascha and Fischer, Matthias}}, booktitle = {{Wissenschaftsforum Intelligente Technische Systeme (WInTeSys) 2017}}, location = {{Paderborn}}, pages = {{415--427}}, publisher = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}}, title = {{{Automatische Ableitung der Transportwege von Transportsystemen aus dem 3D-Polygonmodell}}}, volume = {{369}}, year = {{2017}}, } @inproceedings{13156, abstract = {{Liner carriers change their network on a regular basis, and they are therefore interested in a practical evaluation of the impact these changes have on the cargo flows in their networks. Despite great advancements in the practical applicability of network evaluators in recent years, vessel deployment continues to be considered as an input into the problem, rather than a decision. In this paper, we propose an extension of a state-of-the-art mixed integer programming model for the LSCAP that incorporates the optimization of vessel count and vessel classes for each service. We perform a computational analysis on liner shipping networks of different sizes and compare our optimized results to fixed deployment scenarios. By integrating fleet deployment decisions into the cargo allocation problem, liner carriers can increase the profitability of their networks by at least 2.8 to 16.9{\%} and greatly enhance their decision making.}}, author = {{Müller, Daniel and Guericke, Stefan and Tierney, Kevin}}, booktitle = {{Computational Logistics}}, editor = {{Bektac, Tolga and Coniglio, Stefano and Martinez-Sykora, Antonio and Voß, Stefan}}, isbn = {{978-3-319-68496-3}}, pages = {{306--320}}, publisher = {{Springer International Publishing}}, title = {{{Integrating Fleet Deployment into the Liner Shipping Cargo Allocation Problem}}}, year = {{2017}}, } @article{22038, abstract = {{Micro Physiological Systems (MPS), also known as Multi-Organ-Chip, Organ-on-a-Chip, or Body-on-a-Chip, are advanced microfluidic systems that allow the cultivation of different types of cells and tissue in just one common circuit. Furthermore, they thus can also adjust the interaction of these different tissues. Perspectival MPS will replace animal testing. For fast and flexible manufacturing and marking of MPS, a concept for a universal micromachining platform has been developed which provides the following latest key technologies: laser micro cutting of polymer foils, laser micro- and sub-micro-structuring of polymer foils, 3D printing of polymer components as well as optical inspection and online process control. The combination of different laser sources, processing optics, inspection systems, and print heads on multiple axes allows the change and exactly positioning to the workpiece during the process. Therewith, the realization of MPS including 3D printed components as well as direct laser interference patterned surfaces for well-defined cell adhesion and product protection is possible. Additional basic technologies for the generation of periodical line-like structures at polycarbonate foils using special Direct Laser Interference Patterning (DLIP) optics as well as for the 3D printing of fluid-tight cell culture reservoirs made of Acrylonitrile Butadiene Styrene directly onto polycarbonate microfluidics were established. A first prototype of the universal micromachining platform combining different lasers with Direct Laser Writing and DLIP is shown. With this laser micro cutting as well as laser micro-structuring of polycarbonate (PC) foils and therewith functionalization for MPS application could be successfully demonstrated.}}, author = {{Moritzer, Elmar and Hirsch, André and Günther, K. and Sonntag, F. and Klotzbach, U. and Lasagni, A.F.}}, journal = {{Micromachines}}, number = {{246}}, publisher = {{MDPI}}, title = {{{Universal Micromachining Platform and Basic Technologies for the Manufacture and Marking of Microphysiological Systems}}}, doi = {{10.3390/mi8080246}}, volume = {{8}}, year = {{2017}}, } @inproceedings{22023, abstract = {{Fused Deposition Modeling (FDM) is an Additive Manufacturing (AM) technology which is used for prototypes, single-part-production and also small batch productions. For use as a final product, it is important that the parts have good mechanical properties, a high dimensional accuracy and smooth surfaces. The knowledge of the mechanical properties is very important for the design engineer when it comes to the component design. In this paper, investigations were conducted with the polymer ABS-M30 from Stratasys Inc. To achieve a quality improvement of FDM parts, various toolpath parameters and orientations were used. Within the mechanical properties, the tensile, flexural and impact strength were evaluated. Furthermore, the tensile strength of FDM parts is compared to injection molded specimens. With optimized parameters, an increase of the tensile strength by up to 28 % and a doubling of the impact strength were possible.}}, author = {{Knoop, F. and Kloke, A. and Schöppner, Volker}}, booktitle = {{32nd International Conference of the Polymer Processing Society}}, publisher = {{American Institute of Physics}}, title = {{{Quality Improvement of FDM Parts by Parameter Optimization }}}, doi = {{10.1063/1.5016790}}, volume = {{32}}, year = {{2017}}, } @book{31856, editor = {{Häsel-Weide, Uta and Nührenbörger, M.}}, isbn = {{978-3-941649-22-4}}, pages = {{297}}, publisher = {{Grundschulverband e. V.}}, title = {{{Gemeinsam Mathematik lernen. Mit allen Kindern rechnen.}}}, year = {{2017}}, } @article{20093, author = {{Stellato, B, and Ober-Blöbaum, Sina and Goulart, P.J.}}, journal = {{IEEE Transactions on Automatic Control}}, pages = {{5407--5414}}, title = {{{Second-order switching time optimization for switched dynamical systems}}}, volume = {{62(10)}}, year = {{2017}}, } @inbook{33615, author = {{Rezat, Sara and Lehnen, Katrin}}, booktitle = {{Ästhetische Erfahrungen – Theoretische Konzepte und empirische Befunde zur kulturellen Bildung. (Studien zur Germanistik und Anglistik, 22)}}, editor = {{Grosser, Sabine and Köller, Katharina and Vorst, Claudia}}, pages = {{31--57}}, publisher = {{Peter Lang Verlag}}, title = {{{Ästhetisch-kulturelle Erfahrungsräume materialgestützten Schreibens}}}, year = {{2017}}, } @inproceedings{5829, abstract = {{Websites increasingly embed semantic data for search engine optimization. The most common ontology for semantic data, schema.org, is supported by all major search engines and describes over 500 data types, including calendar events, recipes, products, and TV shows. As of today, users wishing to pass this data to their favorite applications, e.g., their calendars, cookbooks, price comparison applications or even smart devices such as TV receivers, rely on cumbersome and error-prone workarounds such as reentering the data or a series of copy and paste operations. In this paper, we present Semantic Data Mediator (SDM), an approach that allows the easy transfer of semantic data to a multitude of services, ranging from web services to applications installed on different devices. SDM extracts semantic data from the currently displayed web page on the client-side, offers suitable services to the user, and by the press of a button, forwards this data to the desired service while doing all the necessary data conversion and service interface adaptation in between. To realize this, we built a reusable repository of service descriptions, data converters, and service adapters, which can be extended by the crowd. Our approach for linking services to websites relies solely on semantic data and does not require any additional support by either website or service developers. We have fully implemented our approach and present a real-world case study demonstrating its feasibility and usefulness.}}, author = {{Wolters, Dennis and Heindorf, Stefan and Kirchhoff, Jonas and Engels, Gregor}}, booktitle = {{2017 IEEE International Conference on Web Services (ICWS)}}, editor = {{Altintas, Ilkay and Chen, Shiping}}, isbn = {{9781538607527}}, keywords = {{Services, Websites, Semantic Data, schema.org, Data Conversion, Interface Adaptation, Mediation}}, publisher = {{IEEE}}, title = {{{Linking Services to Websites by Leveraging Semantic Data}}}, doi = {{10.1109/icws.2017.80}}, year = {{2017}}, } @misc{22531, abstract = {{Die Erfindung betrifft eine Bremseinrichtung (12) für eine im unbetätigten Zustand eingefallene Bremse (10), wobei die Bremseinrichtung (12) eine Druckplatte (18), eine Gegenplatte (20), eine zum Verpressen einer Bremsscheibe (16) zwischen der Druckplatte (18) und der Gegenplatte (20) auf die Druckplatte (18) wirkende Energiespeichereinrichtung (22) sowie eine Lüftvorrichtung (26) zum Lüften der Bremse (10) aufweist, wobei diese Lüftvorrichtung (26) zum Lüften der Bremse (10) eine der Energiespeichereinrichtung (22) entgegenwirkende Aktoreinrichtung (28) aufweist. Es ist vorgesehen, dass die Lüftvorrichtung (26) weiterhin ein Getriebe (30) zur abschaltbaren Kraftübertragung der Kraft der Aktoreinrichtung (28) auf die Druckplatte (18) aufweist, wobei das Abschalten der Kraftübertragung über eine Schalteinrichtung (32) der Lüftvorrichtung (26) steuerbar ist. Die Erfindung betrifft weiterhin eine entsprechende im unbetätigten Zustand eingefallene Bremse (10).}}, author = {{Zimmer, Detmar and Schadomsky, Magnus Hubert and Kriegel, Nils-Peter and Küter, Winfried and Neumann, Christopher}}, title = {{{Bremseinrichtung für eine im unbetätigten Zustand eingefallene Bremse und entsprechende Aktoreinrichtung zum Lüften der Bremse}}}, year = {{2017}}, } @inbook{46355, abstract = {{In this chapter we present the adaptions of the recently proposed Directed Search method to the context of unconstrained parameter dependent multi-objective optimization problems (PMOPs). The new method, called 𝜆-DS, is capable of performing a movement both toward and along the solution set of a given differentiable PMOP. We first discuss the basic variants of the method that use gradient information and describe subsequently modifications that allow for a gradient free realization. Finally, we show that 𝜆-DS can be used to understand the behavior of stochastic local search within PMOPs to a certain extent which might be interesting for the development of future local search engines, or evolutionary strategies, for the treatment of such problems. We underline all our statements with several numerical results indicating the strength of the novel approach.}}, author = {{Adrián, Sosa Hernández V and Lara, A and Trautmann, Heike and Rudolph, G and Schütze, O}}, booktitle = {{NEO 15}}, editor = {{Schütze, O and Trujillo, L and Legrand, P and Maldonado, Y}}, isbn = {{978-3-319-44003-3}}, pages = {{281–330}}, publisher = {{Springer International Publishing}}, title = {{{The Directed Search Method for Unconstrained Parameter Dependent Multi-objective Optimization Problems}}}, doi = {{10.1007/978-3-319-44003-3_12}}, year = {{2017}}, } @inbook{46356, abstract = {{Integrating user preferences in Evolutionary Multiobjective Optimization (EMO) is currently a prevalent research topic. There is a large variety of preference handling methods (originated from Multicriteria decision making, MCDM) and EMO methods, which have been combined in various ways. This paper proposes a Web Ontology Language (OWL) ontology to model and systematize the knowledge of preference-based multiobjective evolutionary algorithms (PMOEAs). Detailed procedure is given on how to build and use the ontology with the help of Protégé. Different use-cases, including training new learners, querying and reasoning are exemplified and show remarkable benefit for both EMO and MCDM communities.}}, author = {{Li, L and Yevseyeva, I and Basto-Fernandes, V and Trautmann, Heike and Jing, N and Emmerich, M}}, booktitle = {{Evolutionary Multi-Criterion Optimization: 9$^th$ International Conference, EMO 2017, Münster, Germany, March 19-22, 2017, Proceedings}}, editor = {{Trautmann, H and Rudolph, G and Klamroth, K and Schütze, O and Wiecek, M and Jin, Y and Grimme, C}}, isbn = {{978-3-319-54157-0}}, pages = {{406–421}}, publisher = {{Springer International Publishing}}, title = {{{Building and Using an Ontology of Preference-Based Multiobjective Evolutionary Algorithms}}}, doi = {{10.1007/978-3-319-54157-0_28}}, year = {{2017}}, } @inbook{46357, abstract = {{The liner shipping fleet repositioning problem (LSFRP) is a central optimization problem within the container shipping industry. Several approaches exist for solving this problem using exact and heuristic techniques, however all of them use a single objective function for determining an optimal solution. We propose a multi-objective approach based on a simulated annealing heuristic so that repositioning coordinators can better balance profit making with cost-savings and environmental sustainability. As the first multi-objective approach in the area of liner shipping routing, we show that giving more options to decision makers need not be costly. Indeed, our approach requires no extra runtime than a weighted objective heuristic and provides a rich set of solutions along the Pareto front.}}, author = {{Tierney, K and Handali, J and Grimme, C and Trautmann, Heike}}, booktitle = {{Evolutionary Multi-Criterion Optimization: 9$^th$ International Conference, EMO 2017, Münster, Germany, March 19-22, 2017, Proceedings}}, editor = {{Trautmann, H and Rudolph, G and Klamroth, K and Schütze, O and Wiecek, M and Jin, Y and Grimme, C}}, isbn = {{978-3-319-54157-0}}, pages = {{622–638}}, publisher = {{Springer International Publishing}}, title = {{{Multi-objective Optimization for Liner Shipping Fleet Repositioning}}}, doi = {{10.1007/978-3-319-54157-0_42}}, year = {{2017}}, }