TY - CONF
AU - Çavdar, Serkan
AU - Meschut, Gerson
AU - Wulf, A.
AU - Hesebeck, O.
AU - Brede, M.
AU - Mayer, B.
AU - Tittmann, K.
AU - Koch, I.
AU - Jäger, H.
AU - Wacker, J.-D.
AU - Rybar, G.
AU - Melz, T.
ID - 20380
T2 - DVS Congress 2020
TI - Berechnen der Lebensdauer hybrider Verbindungen
ER -
TY - CONF
AU - Çavdar, Serkan
AU - Meschut, Gerson
AU - Wulf, A.
AU - Hesebeck, O.
AU - Brede, M.
AU - Mayer, B.
ID - 20381
T2 - Joining in Car Body Engineering 2020
TI - Fatigue life prediction of adhesively bonded FRP-aluminium-joints with hyperelastic behavior under cyclic multiaxial stress state
ER -
TY - CONF
AU - Heyser, Per
AU - Scharr, Christian
AU - Nehls, Thomas
AU - Wiesenmayer, Sebastian
AU - Flügge, Wilko
AU - Meschut, Gerson
ID - 20409
T2 - 4. Workshop Digitalisierung
TI - Prozesskettenbegleitende Vorgehensweise beim Mechanischen Fügen
ER -
TY - JOUR
AU - Vascellari, A
AU - Grassi, A
AU - Canata, GL
AU - Zaffagnini, S
AU - Gokeler, A
AU - Jones, H
ID - 20414
JF - Knee Surg Sports Traumatol Arthrosc
SN - 0942-2056
TI - Hamstrings substitution via anteromedial portal with optional anterolateral ligament reconstruction is the preferred surgical technique for anterior cruciate ligament reconstruction: a survey among ESSKA members.
ER -
TY - GEN
AU - Keizer, MNJ
AU - Hijmans, JM
AU - Gokeler, A
AU - Otten, E
AU - Brouwer, RW
ID - 20415
IS - 1
SN - 2197-1153
T2 - J Exp Orthop
TI - Sagittal knee kinematics in relation with the posterior tibia slope during jump landing after an anterior cruciate ligament reconstruction.
VL - 7
ER -
TY - GEN
AU - Keizer, MNJ
AU - Hijmans, JM
AU - Gokeler, A
AU - Benjaminse, A
AU - Otten, E
ID - 20416
IS - 1
SN - 2197-1153
T2 - J Exp Orthop
TI - Healthy subjects with lax knees use less knee flexion rather than muscle control to limit anterior tibia translation during landing.
VL - 7
ER -
TY - JOUR
AU - Vascellari, A
AU - Gokeler, A
AU - Grassi, A
AU - Canata, GL
AU - Zaffagnini, S
AU - Jones, H
ID - 20417
IS - 11
JF - Knee Surg Sports Traumatol Arthrosc
SN - 0942-2056
TI - Functional progression milestones following anterior cruciate ligament reconstruction are more appropriate than time-based criteria: a survey among the ESSKA.
VL - 28
ER -
TY - JOUR
AU - Magnitskaya, N
AU - Mouton, C
AU - Gokeler, A
AU - Nuehrenboerger, C
AU - Pape, D
AU - Seil, R
ID - 20419
IS - 3
JF - Knee Surg Sports Traumatol Arthrosc
SN - 0942-2056
TI - Younger age and hamstring tendon graft are associated with higher IKDC 2000 and KOOS scores during the first year after ACL reconstruction.
VL - 28
ER -
TY - JOUR
AU - Welling, W
AU - Benjaminse, A
AU - Lemmink, K
AU - Gokeler, A
ID - 20422
IS - 3
JF - Knee
SN - 0968-0160
TI - Passing return to sports tests after ACL reconstruction is associated with greater likelihood for return to sport but fail to identify second injury risk.
VL - 27
ER -
TY - JOUR
AU - Eisenbarth, Markus
AU - Wegener, Marius
AU - Scheer, Ren{\'{e}}
AU - Andert, Jakob
AU - Buse, Dominik S.
AU - Klingler, Florian
AU - Sommer, Christoph
AU - Dressler, Falko
AU - Reinold, Peter
AU - Gries, Rafael
ID - 20439
JF - IEEE Vehicular Technology Magazine (VTMag)
SN - 1556-6072
TI - Towards Smart V2X-Connected Powertrains
ER -
TY - CONF
AU - Klingler, Florian
AU - Hauptmeier, Fynn
AU - Sommer, Christoph
AU - Dressler, Falko
ID - 20440
T2 - 39th IEEE International Conference on Computer Communications (INFOCOM 2020), Poster Session
TI - An Open Source Approach to Field Testing of WLAN up to IEEE 802.11ad at 60 GHz Using Commodity Hardware
ER -
TY - CONF
AU - Hardes, Tobias
AU - Klingler, Florian
AU - Sommer, Christoph
ID - 20441
T2 - 12th IEEE Vehicular Networking Conference (VNC 2020)
TI - Modern WLAN for V2X Applications: Exploiting Beamforming for Platooning
ER -
TY - CONF
AU - Turcanu, Ion
AU - Kim, Minsuk
AU - Klingler, Florian
ID - 20442
T2 - 12th IEEE Vehicular Networking Conference (VNC 2020)
TI - Poster: Towards 2-Hop Neighbor Management for Heterogeneous Vehicular Networks
ER -
TY - JOUR
AU - Oevel, Gudrun
AU - Odenbach, Christopher
ID - 20444
IS - 08/2020
JF - DUZ Wissenschaft & Management
TI - Einfach den blauen Knopf drücken - Die Universität Paderborn entschied sich bereits Mitte März für Big Blue Button, ein offenes Videokonferenz-System, mit dem sich auch Lehr- und Lernprozesse unterstützen lassen
ER -
TY - JOUR
AU - Massmann, Melina
AU - Meyer, Maurice
AU - Frank, Maximilian
AU - von Enzberg, Sebastian
AU - Kühn, Arno
AU - Dumitrescu, Roman
ID - 20447
IS - 93
JF - Procedia CIRP
TI - Method for data inventory and classification
ER -
TY - JOUR
AU - Meyer, Maurice
AU - Frank, Maximilian
AU - Massmann, Melina
AU - Wendt, Niklas
AU - Dumitrescu, Roman
ID - 20448
IS - 93
JF - Procedia CIRP
TI - Data-Driven Product Generation and Retrofit Planning
ER -
TY - JOUR
AU - Uhlmann, Eckart
AU - Dumitrescu, Roman
AU - Polte, Julian
AU - Meyer, Maurice
AU - Simsek, Deniz
ID - 20449
IS - 07-08
JF - wt Werkstattstechnik online
TI - Datengetriebene Steigerung der Verfügbarkeit
VL - 110
ER -
TY - JOUR
AU - Massmann, Melina
AU - Meyer, Maurice
AU - Frank, Maximilian
AU - von Enzberg, Sebastian
AU - Kühn, Arno
AU - Dumitrescu, Roman
ID - 20450
JF - Procedia Manufacturing
TI - Framework for Data Analytics in Data-Driven Product Planning
ER -
TY - CONF
AB - In this paper, we present a novel approach to design teaching interventions for computing education, elaborated using an example of cybersecurity education. Cybersecurity education, similar to other computing education domains, often focuses on one aspect and separate themselves from the other approach. In other words, they focus on one of the two different aspects: a) either teaching how to use and to behave, or b) how technology works. Here we suggest another point of focal awareness for teaching – interaction – that allows the recombination of both approaches in a novel way, leading to a reconstruction of the teaching and learning content in a way that – as we hope – supports an understanding on a higher level and thus gives the chance to better develop agency. For this didactic reconstruction of teaching content, we use an approach called the hybrid interaction system framework.
In cybersecurity training, teaching interventions oftentimes are in a way successful but seem to not lead to long-lasting changes towards secure behavior. Using simply password security as an example, we show how this new approach recombines the two different priory mentioned teaching approaches in a novel way.
Within this short paper, we present our current research progress, discuss potentials and values of the approach in general, and by way of example. Our intention of this submission and early disclosure is to spark discussion and generate further insights especially regarding the following question: What implications does the hybrid interaction system approach have on learning scenarios?
AU - Terfloth, Lutz
AU - Budde, Lea
AU - Schulte, Carsten
ID - 20452
SN - 9781450389211
TI - Combining Ideas and Artifacts: An Interaction-Focused View on Computing Education Using a Cybersecurity Example
ER -
TY - JOUR
AU - Gebel, A
AU - Lehmann, T
AU - Granacher, U
ID - 20457
IS - 5
JF - Exp Brain Res
SN - 0014-4819
TI - Balance task difficulty affects postural sway and cortical activity in healthy adolescents.
VL - 238
ER -
TY - JOUR
AU - Tischer, T
AU - Bode, G
AU - Buhs, M
AU - Marquass, B
AU - Nehrer, S
AU - Vogt, S
AU - Zinser, W
AU - Angele, P
AU - Spahn, G
AU - Welsch, GH
AU - Niemeyer, P
AU - Madry, H
ID - 20469
IS - 1
JF - J Exp Orthop
SN - 2197-1153
TI - Platelet-rich plasma (PRP) as therapy for cartilage, tendon and muscle damage - German working group position statement.
VL - 7
ER -
TY - JOUR
AU - Anders, P
AU - Müller, H
AU - Skjæret-Maroni, N
AU - Vereijken, B
AU - Baumeister, Jochen
ID - 20490
JF - Medical & Biological Engineering & Computing
TI - The influence of motor tasks and cut-off parameter selection on artifact subspace reconstruction in EEG recordings
VL - 85
ER -
TY - GEN
AU - Jochmaring, Moritz
ID - 20495
TI - A self stabilizing protocol for well-formed trees in hybrid networks
ER -
TY - JOUR
AU - Streiter, Martin
AU - Fischer, Tillmann G.
AU - Wiebeler, Christian
AU - Reichert, Sebastian
AU - Langenickel, Jörn
AU - Zeitler, Kirsten
AU - Deibel, Carsten
ID - 20496
JF - The Journal of Physical Chemistry C
KW - pc2-ressources
SN - 1932-7447
TI - Impact of Chlorine on the Internal Transition Rates and Excited States of the Thermally Delayed Activated Fluorescence Molecule 3CzClIPN
ER -
TY - JOUR
AU - Rosenthal, Marta
AU - Lindner, Jörg K N
AU - Gerstmann, Uwe
AU - Meier, Armin
AU - Schmidt, W Gero
AU - Wilhelm, René
ID - 20501
IS - 42930-42937
JF - Royal Society of Chemistry
TI - A photoredox catalysed Heck reaction via hole transfer from a Ru(II)-bis(terpyridine) complex to graphene oxide
VL - 10
ER -
TY - JOUR
AU - Geismann, Johannes
AU - Bodden, Eric
ID - 20507
JF - Journal of Systems and Software
SN - 0164-1212
TI - A systematic literature review of model-driven security engineering for cyber–physical systems
VL - 169
ER -
TY - JOUR
AU - Nguyen Quang Do, Lisa
AU - Bodden, Eric
ID - 20508
JF - IEEE Transactions on Software Engineering
TI - Explaining Static Analysis with Rule Graphs
ER -
TY - CONF
AU - Fischer, Andreas
AU - Janneck, Jonas
AU - Kussmaul, Jörn
AU - Krätzschmar, Nikolas
AU - Kerschbaum, Florian
AU - Bodden, Eric
ID - 20509
T2 - 2020 IEEE Computer Security Foundations Symposium (CSF)
TI - PASAPTO: Policy-aware Security and Performance Trade-off Analysis - Computation on Encrypted Data with Restricted Leakage
ER -
TY - CONF
AU - Benz, Manuel
AU - Krogh Kristensen, Erik
AU - Luo, Linghui
AU - P. Borges Jr., Nataniel
AU - Bodden, Eric
AU - Zeller, Andreas
ID - 20510
T2 - International Conference for Software Engineering (ICSE)
TI - Heaps'n Leaks: How Heap Snapshots Improve Android Taint Analysis
ER -
TY - CONF
AU - Fischer, Andreas
AU - Fuhry, Benny
AU - Kerschbaum, Florian
AU - Bodden, Eric
ID - 20511
T2 - Privacy Enhancing Technologies Symposium (PETS/PoPETS)
TI - Computation on Encrypted Data using Dataflow Authentication
ER -
TY - CONF
AU - Krüger, Stefan
AU - Ali, Karim
AU - Bodden, Eric
ID - 20512
T2 - International Symposium on Code Generation and Optimization (CGO)
TI - CogniCrypt_GEN - Generating Code for the Secure Usage of Crypto APIs
ER -
TY - THES
AB - Frühere Studien haben empirisch offenbart, dass Fehlbenutzungen von kryptographischen APIs in Softwareanwendungen weitverbreitet sind. Dies geschieht vor allem, weil Software-Entwickler_innen aufgrund schlechten API-Designs und fehlenden Kryptographiewissens Probleme bekommen, wenn sie versuchen kryptographische Features zu implementieren. Die Literatur liefert mehrere Ansätze und Vorschläge diese Probleme zu lösen, aber alle scheitern schlussendlich auf die eine oder andere Weise daran die Anforderungen der Entwickler_innenzu erfüllen. Das Resultat ist eine insgesamt lückenhafte Landschaft verschiedener nur wenigkomplementärer Ansätze.In dieser Arbeit adressieren wir das Problem kryptographischer Fehlbenutzungen systematischer durch CogniCrypt. CogniCrypt integriert verschiedene Arten von Tool Supportin einen gemeinsamen Ansatz, der Entwickler_innen davon befreit wissen zu müssen, wie diese APIs benutzt werden müssen. Zentral für unseren Ansatz ist CrySL, eine Beschreibungssprache,die die kognitive Lücke zwischen Kryptographie-Expert_innen und Software-Entwickler_innenüberbrückt. CrySL ermöglicht es Kryptographie-Expert_innen zu spezifizeren, wie die APIs,die sie bereitstellen, richtig benutzt werden. Wir haben einen Compiler für CrySL implementiert, der es erlaubt auf CrySL-Spezifikationen aufbauenden Tool Support zu entwickeln. Wir haben weiterhin die statische Analyse CogniCrypt_SAST und den Code-Generator CogniCrypt_GEN entwickelt. Schlussendlich haben wir CogniCrypt prototypisch implementiert und diesen Prototyp in einem kontrollierten Experiment evaluiert.
AU - Krüger, Stefan
ID - 20513
TI - CogniCrypt -- The Secure Integration of Cryptographic Software
ER -
TY - CONF
AU - Yigitbas, Enes
ID - 20514
T2 - ACM SIGWEB Newsletter
TI - Model-driven engineering and usability evaluation of self-adaptive user interfaces
ER -
TY - CONF
AB - Traceability, a classic requirements engineering topic, is increasingly used in the context of model-based engineering. However, researchers and practitioners lack a concise terminology to discuss aspects of requirements traceability in situations in which engineers heavily rely on models and model-based engineering. While others have previously surveyed the domain, no one has so far provided a clear, unambiguous set of terms that can be used to discuss traceability in such a context. We therefore set out to cut a path through the jungle of terminology for model-based traceability, ground it in established terminology from requirements engineering, and derive an unambiguous set of relevant terms. We also map the terminology used in existing primary and secondary studies to our taxonomy to show differences and commonalities. The contribution of this paper is thus a terminology for model-based traceability that allows requirements engineers and engineers working with models to unambiguously discuss their joint traceability efforts.
AU - Holtmann, Jörg
AU - Steghofer, Jan-Philipp
AU - Rath, Michael
AU - Schmelter, David
ID - 20516
SN - 9781728174389
T2 - 2020 IEEE 28th International Requirements Engineering Conference (RE)
TI - Cutting through the Jungle: Disambiguating Model-based Traceability Terminology
ER -
TY - CONF
AU - Koch, Thorsten
AU - Dziwok, Stefan
AU - Holtmann, Jörg
AU - Bodden, Eric
ID - 20518
T2 - ACM/IEEE 23rd International Conference on Model Driven Engineering Languages and Systems (MODELS ’20)
TI - Scenario-based Specification of Security Protocols and Transformation to Security Model Checkers
ER -
TY - THES
AU - Gerking, Christopher
ID - 20521
TI - Model-Driven Information Flow Security Engineering for Cyber-Physical Systems
ER -
TY - GEN
AU - Otroshi, Mortaza
AU - Meschut, Gerson
AU - Masendorf, Lukas
AU - Esderts, Alfons
ID - 20567
TI - Simulationsbasierte Betriebsfestigkeitsanalyse stanzgenieteter Bauteile
ER -
TY - CHAP
AU - Reinhold, Jannik
AU - Koldewey, Christian
AU - Dumitrescu, Roman
ED - Buchholz, Birgit
ED - Bürger, Matthias
ID - 20568
T2 - Der Geschäftsmodell-Toolguide
TI - GEMINI-Modellierungssprache für Wertschöpfungssysteme
ER -
TY - CHAP
AU - Koldewey, Christian
AU - Reinhold, Jannik
AU - Dumitrescu, Roman
ED - Buchholz, Birgit
ED - Bürger, Matthias
ID - 20570
T2 - Der Geschäftsmodell-Toolguide
TI - GEMINI-Geschäftsmodellmuster-Kartenset
ER -
TY - CHAP
AU - Koldewey, Christian
AU - Reinhold, Jannik
AU - Dumitrescu, Roman
ED - Buchholz, Birgit
ED - Bürger, Matthias
ID - 20571
T2 - Der Geschäftsmodell-Toolguide
TI - Geschäftsmodellvalidierung
ER -
TY - CHAP
AU - Koldewey, Christian
AU - Reinhold, Jannik
AU - Dumitrescu, Roman
ED - Buchholz, Birgit
ED - Bürger, Matthias
ID - 20573
T2 - Der Geschäftsmodell-Toolguide
TI - Geschäftsmodell-Roadmapping
ER -
TY - JOUR
AB - Plasmonic nanoantennas for visible and infrared radiation strongly improve the interaction of light with the matter on the nanoscale due to their strong near-field enhancement. In this study, we investigate a double-resonant plasmonic nanoantenna, which makes use of plasmonic field enhancement, enhanced outcoupling of second harmonic light, and resonant lattice effects. Using this design, we demonstrate how the efficiency of second harmonic generation can be increased significantly by fully embedding the nanoantennas into nonlinear dielectric material ZnO, instead of placing them on the surface. Investigating two different processes, we found that the best fabrication route is embedding the gold nanoantennas in ZnO using an MBE overgrowth process where a thin ZnO layer was deposited on nanoantennas fabricated on a ZnO substrate. In addition, second harmonic generation measurements show that the embedding leads to an enhancement compared to the emission of nanoantennas placed on the ZnO substrate surface. These promising results facilitate further research to determine the influence of the periodicity of the nanoantenna arrangement of the resulting SHG signal.
AU - Volmert, Ruth
AU - Weber, Nils
AU - Meier, Cedrik
ID - 20644
IS - 4
JF - Journal of Applied Physics
SN - 0021-8979
TI - Nanoantennas embedded in zinc oxide for second harmonic generation enhancement
VL - 128
ER -
TY - CONF
AU - Aßmuth, Verena
AU - Teutenberg, Dominik
AU - Meschut, Gerson
AU - Stepanov, Sergey
AU - Stalling, Annika
AU - Ihde, Jörg
AU - Mayer, Bernd
ID - 20647
T2 - 20. Kolloquium Gemeinsame Forschung in der Klebtechnik
TI - Offenzeit plasmaaktivierter Polymeroberflächen für robuste klebtechnische Prozesse – OffPlas
ER -
TY - CONF
AU - Aßmuth, Verena
AU - Teutenberg, Dominik
AU - Meschut, Gerson
ID - 20650
T2 - 20. Kolloquium Gemeinsame Forschung in der Klebtechnik
TI - Analyse und Vorhersage rezeptur- und zeitabhängiger Enthaftungserscheinungen geklebter SMC-Bauteile
ER -
TY - CONF
AU - Aßmuth, Verena
AU - Teutenberg, Dominik
AU - Meschut, Gerson
AU - Philipp, Jens
AU - Stammen, Elisabeth
AU - Dilger, Klaus
ID - 20652
T2 - 20. Kolloquium Gemeinsame Forschung in der Klebtechnik
TI - Lokales Konzept zur Auslegung von elastischen Klebverbindungen (LoKAl)
ER -
TY - JOUR
AU - Aßmuth, Verena
AU - Teutenberg, Dominik
AU - Meschut, Gerson
AU - Stepanov, Sergey
AU - Ihde, Jörg
AU - Mayer, Bernd
ID - 20673
IS - 11
JF - Plastverarbeiter
SN - 0032-1338
TI - Aktivieren für robuste Klebprozesse - Wie lange sind plasmaaktivierte Polymeroberflächen offen?
VL - 71
ER -
TY - BOOK
AU - Aßmuth, Verena
AU - Teutenberg, Dominik
AU - Meschut, Gerson
AU - Stepanov, Sergey
AU - Ihde, Jörg
AU - Mayer, Bernd
ID - 20674
TI - Offenzeit plasmaaktivierter Polymeroberflächen für robuste klebtechnische Prozesse
ER -
TY - BOOK
AU - Aßmuth, Verena
AU - Teutenberg, Dominik
AU - Meschut, Gerson
ID - 20676
TI - Analyse rezepturabhängiger und alterungsbedingter Enthaftungserscheinungen geklebter SMC-Bauteile
ER -
TY - CONF
AU - Boeddeker, Christoph
AU - Nakatani, Tomohiro
AU - Kinoshita, Keisuke
AU - Haeb-Umbach, Reinhold
ID - 20695
SN - 9781509066315
T2 - ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
TI - Jointly Optimal Dereverberation and Beamforming
ER -
TY - CONF
AU - Boeddeker, Christoph
AU - Cord-Landwehr, Tobias
AU - Heitkaemper, Jens
AU - Zorila, Catalin
AU - Hayakawa, Daichi
AU - Li, Mohan
AU - Liu, Min
AU - Doddipatla, Rama
AU - Haeb-Umbach, Reinhold
ID - 20700
T2 - Proc. CHiME 2020 Workshop on Speech Processing in Everyday Environments
TI - Towards a speaker diarization system for the CHiME 2020 dinner party transcription
ER -
TY - CONF
AB - This paper describes Asteroid , the PyTorch -based audio source separation toolkit for researchers. Inspired by the most successful neural source separation systems, it provides all neural building blocks required to build such a system. To improve reproducibility, Kaldi-style recipes on common audio source separation datasets are also provided. This paper describes the software architecture of Asteroid and its most important features. By showing experimental results obtained with Asteroid ’s recipes, we show that our implementations are at least on par with most results reported in reference papers. The toolkit is publicly available at github.com/mpariente/asteroid.
AU - Pariente, Manuel
AU - Cornell, Samuele
AU - Cosentino, Joris
AU - Sivasankaran, Sunit
AU - Tzinis, Efthymios
AU - Heitkaemper, Jens
AU - Olvera, Michel
AU - Stöter, Fabian-Robert
AU - Hu, Mathieu
AU - Martín-Doñas, Juan M.
AU - Ditter, David
AU - Frank, Ariel
AU - Deleforge, Antoine
AU - Vincent, Emmanuel
ID - 20701
T2 - Interspeech 2020
TI - Asteroid: The PyTorch-Based Audio Source Separation Toolkit for Researchers
ER -
TY - GEN
ID - 20703
SN - 1424-3636
TI - Orientierungen in der digitalen Welt
ER -
TY - BOOK
ED - Herzig, Bardo
ED - Klar, Tilman-Mathies
ED - Martin, Alexander
ED - Meister, Dorothee
ID - 20705
SN - 1424-3636
TI - Orientierungen in der digitalen Welt
ER -
TY - JOUR
AB - Mediatisierung und Digitalisierung sind zu Synonymen für gesellschaftliche Transformationsprozesse geworden, die sich in tiefgreifenden Veränderungen unserer Lebenspraxen in Alltag, Freizeit und Beruf niederschlagen. Viele technologische Entwicklungen führen auf der einen Seite zu bereichernden Formen der Lebensgestaltung und Erhöhung der Lebensqualität, auf der anderen Seite stellen sie Selbstbestimmung, Teilhabe und Autonomie aber auch grundlegend in Frage. Wenngleich zwar der Begriff Digitalisierung im engeren technischen Sinne die Überführung von analogen Erscheinungsformen in digitale Daten – also elektronisch gespeicherte Zeichen, die in programmierbaren Computern maschinell verarbeitet werden können – beschreibt, werden die damit verbundenen Transformationsprozesse in ihrer gesellschaftlichen und (medien-)pädagogischen Bedeutung erst deutlich ,wenn man die Dimensionen der Vernetzung, der zunehmenden Generierung von Daten durch aktive (eigene) Produktion oder durch sensorische Systeme und die Algorithmisierung von Prozessen, insbesondere auch im Kontext selbstlernender Systeme, in den Blick nimmt. Orientierung wird hier nicht nur in Bezug auf die technologischen Entwicklungen zu einer zunehmenden Herausforderung, sondern auch mit Blick auf die dadurch einem dynamischen und fortlaufenden Wandel unterliegenden Medienwelten.
Die stetig zunehmende Bedeutung der Digitalisierung für Individuum und Gesellschaft kann mit der Chiffre «permanent online, permanent verbunden» umsponnen werden. Mit mobilen Endgeräten – insbesondere Smartphones, die leistungsfähigen Computern in ihren Funktionalitäten in nichts nachstehen – sind wir heute zu jeder Zeit und an nahezu jedem Ort der Welt miteinander vernetzt und haben Zugriff auf eine enorme Menge von Medienangeboten. Gleichzeitig produzieren wir eine enorme Menge an Daten, die nicht nur funktionale Bedeutung haben, sondern insbesondere ökonomische und (gesellschafts-)politische. Auch das soziale Beziehungsgefüge, der Lebenswandel und Lebensstil verändern sich. Die damit verbundenen Möglichkeiten changieren zwischen Hoffnung und Sorge, Chance und Risiko, Mündigkeit und Unmündigkeit oder kurzum kann von einem durch ein einerseits-andererseits geprägten Spannungsfeld gesprochen werden.
Von der Medienpädagogik darf zurecht erwartet werden, im Strom dieser hohen Dynamik und den oftmals enorm kurzen Innovationszyklen von Entwicklungen in mindestens zweierlei Hinsicht Orientierungen zu bieten: zum einen im Hinblick auf die für eine Orientierung in der digitalen Welt notwendigen oder angemessenen individuellen und kollektiven Bildungsressourcen; zum anderen im Hinblick auf die pädagogischen Zugänge und Massnahmen zur Ermöglichung von Orientierung sowie damit verbundene Forschungen. Gleichzeitig drängt sich die Frage auf, welchen Einfluss Medienpädagogik auf die Gestaltung von zukünftigen Entwicklungen nimmt oder nehmen kann. Können angesichts der Komplexität von (digitalen) Medien bzw. der damit verbundenen technologischen Strukturen, kulturellen Praxen, ökonomischen Bedingungen und gesellschaftlichen Implikationen solche Orientierungsleistungen – die sich auf eine im Grunde nur interdisziplinär beschreib- und verstehbare digitale Welt beziehen – überhaupt von einer Medienpädagogik als genuin erziehungswissenschaftliche Disziplin eigenständig erbracht werden? Welchen Beitrag kann Medienpädagogik in dieser interdisziplinären Gemengelage leisten? Und noch grundsätzlicher könnte danach gefragt werden, was Orientierung und Gestaltungsmöglichkeiten angesichts der Unbestimmtheit von Entwicklungen eigentlich bedeuten. Ausgehend von diesen Perspektiven und Erwägungen hat die Frühjahrstagung 2019 der Sektion Medienpädagogik folgende Fragen in den Mittelpunkt gestellt:
Welche Rolle spielt die Medienpädagogik in interdisziplinären Kontexten von Mediatisierung und Digitalisierung?
Welche Rolle nimmt die Medienpädagogik bei der Gestaltung von zukünftigen Entwicklungen ein?
Welchen Beitrag kann die Medienpädagogik in innovativen Feldern, wie z.B. VR/AR oder KI leisten?
Welche Orientierungsleistungen in Erziehung und Bildung können von der Medienpädagogik erwartet werden?
AU - Herzig, Bardo
AU - Klar, Tilman-Mathies
AU - Martin, Alexander
AU - Meister, Dorothee M.
ID - 20707
JF - Orientierungen in der digitalen Welt
SN - 1424-3636
TI - Editorial: Orientierungen in der digitalen Welt
ER -
TY - GEN
AU - Schubert, Philipp
AU - Bodden, Eric
AU - Hermann, Ben
ID - 20712
TI - Accelerating Static Call-Graph, Points-to and Data-Flow Analysis Through Persisted Summaries
ER -
TY - CONF
AU - Ivanjko, Martin
AU - Meschut, Gerson
ID - 20723
T2 - 10. Fügetechnisches Gemeinschaftskolloquium
TI - Einsatzgrenzenerweiterung und Flexibilitätssteigerung von einseitig wirkenden mechanischen Fügeverfahren durch prozessintegrierte Fügeteilerwärmung für den stahlintensiven Leichtbau
ER -
TY - GEN
AB - On the circuit level, the design paradigm Approximate Computing seeks to trade off computational accuracy against a target metric, e.g., energy consumption. This trade-off is possible for many applications due to their inherent resiliency against inaccuracies.
In the past, several automated approximation frameworks have been presented, which either utilize designated approximation techniques or libraries to replace approximable circuit parts with inaccurate versions. The frameworks invoke a search algorithm to iteratively explore the search space of performance degraded circuits, and validate their quality individually.
In this paper, we propose to reverse this procedure. Rather than exploring the search space, we delineate the approximate parts of the search space which are guaranteed to lead to valid approximate circuits. Our methodology is supported by formal verification and independent of approximation techniques. Eventually, the user is provided with quality bounds of the individual approximable circuit parts. Consequently, our approach guarantees that any approximate circuit which implements these parts within the determined quality constraints satisfies the global quality constraints, superseding a subsequent quality verification.
In our experimental results, we present the runtimes of our approach.
AU - Witschen, Linus Matthias
AU - Wiersema, Tobias
AU - Platzner, Marco
ID - 20748
T2 - Fifth Workshop on Approximate Computing (AxC 2020)
TI - Search Space Characterization for AxC Synthesis
ER -
TY - CONF
AU - Lienen, Christian
AU - Platzner, Marco
AU - Rinner, Bernhard
ID - 20750
T2 - Proceedings of the 2020 International Conference on Field-Programmable Technology (FPT)
TI - ReconROS: Flexible Hardware Acceleration for ROS2 Applications
ER -
TY - CONF
AB - We consider the problem of computing shortest paths in \emph{hybrid networks}, in which nodes can make use of different communication modes. For example, mobile phones may use ad-hoc connections via Bluetooth or Wi-Fi in addition to the cellular network to solve tasks more efficiently. Like in this case, the different communication modes may differ considerably in range, bandwidth, and flexibility. We build upon the model of Augustine et al. [SODA '20], which captures these differences by a \emph{local} and a \emph{global} mode. Specifically, the local edges model a fixed communication network in which $O(1)$ messages of size $O(\log n)$ can be sent over every edge in each synchronous round. The global edges form a clique, but nodes are only allowed to send and receive a total of at most $O(\log n)$ messages over global edges, which restricts the nodes to use these edges only very sparsely.
We demonstrate the power of hybrid networks by presenting algorithms to compute Single-Source Shortest Paths and the diameter very efficiently in \emph{sparse graphs}. Specifically, we present exact $O(\log n)$ time algorithms for cactus graphs (i.e., graphs in which each edge is contained in at most one cycle), and $3$-approximations for graphs that have at most $n + O(n^{1/3})$ edges and arboricity $O(\log n)$. For these graph classes, our algorithms provide exponentially faster solutions than the best known algorithms for general graphs in this model.
Beyond shortest paths, we also provide a variety of useful tools and techniques for hybrid networks, which may be of independent interest.
AU - Feldmann, Michael
AU - Hinnenthal, Kristian
AU - Scheideler, Christian
ID - 20755
T2 - Proceedings of the 24th International Conference on Principles of Distributed Systems (OPODIS)
TI - Fast Hybrid Network Algorithms for Shortest Paths in Sparse Graphs
ER -
TY - CONF
AU - Jean, Frederic
AU - Maslovskaya, Sofya
ID - 20812
SN - 9781728113982
T2 - 2019 IEEE 58th Conference on Decision and Control (CDC)
TI - Injectivity of the inverse optimal control problem for control-affine systems
ER -
TY - GEN
AU - Thiele, Simon
ID - 20820
TI - Implementing Machine Learning Functions as PYNQ FPGA Overlays
ER -
TY - GEN
AU - Jaganath, Vivek
ID - 20821
TI - Extension and Evaluation of Python-based High-Level Synthesis Tool Flows
ER -
TY - JOUR
AU - Webb, Mary E
AU - Fluck, Andrew
AU - Magenheim, Johannes
AU - Malyn-Smith, Joyce
AU - Waters, Juliet
AU - Deschênes , Michelle
AU - Zagami, Jason
ID - 20834
JF - Educational Technology Research and Development
TI - Machine learning for human learners: opportunities, issues, tensions and threats
ER -
TY - JOUR
AU - Magenheim, Johannes
ID - 20835
JF - MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung
TI - < Big Data> aus der Perspektive von Informatischer Bildung und Medienpädagogik
VL - 37
ER -
TY - JOUR
AU - Magenheim, Johannes
AU - Schulte, Carsten
ID - 20836
JF - Encyclopedia of Education and Information Technologies. Cham: Springer
TI - Data science education
ER -
TY - CHAP
AU - Schulte, Carsten
AU - Budde, Lea
AU - Winkelnkemper, Felix
ID - 20840
T2 - Mobile Medien im Schulkontext
TI - Programmieren - Lehren und Lernen mit und über Medien
ER -
TY - CONF
AU - Wu, Tao
AU - Tinkloh, Steffen Rainer
AU - Tröster, Thomas
AU - Zinn, Wolfgang
ID - 20843
T2 - Proceedings of the 4th International Conference Hybrid 2020 Materials and Structures
TI - Residual stress measurement in GFRP/steel hybrid components
ER -
TY - CHAP
AU - Zentgraf, Thomas
AU - Chen, Shumei
AU - Li, Guixin
AU - Zhang, Shuang
ED - Werner, Douglas H.
ED - Campbell, Sawyer D.
ED - Kang, Lei
ID - 20847
T2 - Nanoantennas and Plasmonics: Modelling, design and fabrication
TI - Plasmonic metasurfaces for controlling harmonic generations
ER -
TY - JOUR
AU - Tischendorf, R.
AU - Simmler, M.
AU - Weinberger, C.
AU - Bieber, M.
AU - Reddemann, M.
AU - Fröde, F.
AU - Lindner, J.
AU - Pitsch, H.
AU - Kneer, R.
AU - Tiemann, M.
AU - Nirschl, H.
AU - Schmid, H.-J.
ID - 20848
JF - Journal of Aerosol Science
SN - 0021-8502
TI - Examination of the evolution of iron oxide nanoparticles in flame spray pyrolysis by tailored in situ particle sampling techniques
ER -
TY - CONF
AU - Unruh, Eduard
AU - Hein, David
AU - Meschut, Gerson
ID - 20852
T2 - 10. Fügetechnisches Gemeinschaftskolloquium
TI - Analytische Auslegung der Schwingfestigkeit geclinchter Verbindungen
ER -
TY - CONF
AU - Bähr, Philipp
AU - Sommer, Silke
AU - Unruh, Eduard
AU - Hein, David
AU - Meschut, Gerson
ID - 20853
TI - Charakterisierung und Modellierung von Kerbeffekten durch Mischverbindungen in Karosseriebauteilen aus höchstfesten Stählen
ER -
TY - CONF
AU - Camberg, Alan Adam
AU - Tröster, Thomas
ID - 20854
TI - A simplified method for the evaluation of the layer compression test using one 3D digital image correlation system and considering the material anisotropy by the equibiaxial Lankford parameter
ER -
TY - CONF
AU - Camberg, Alan Adam
AU - Erhart, Tobias
AU - Tröster, Thomas
ID - 20856
TI - Predicting fracture at non-isothermal forming conditions: A temperature dependent extension of the LS-DYNA GISSMO fracture indicator framework
ER -
TY - CHAP
AU - Strauß, Sara
AU - Schäfer-Althaus, Sarah
ED - Strauß, Sara
ED - Schäfer-Althaus, Sarah
ID - 20860
SN - 9783825346638
T2 - Transient Bodies in Anglophone Literature and Culture
TI - Transient Bodies, Bodies in Transition: An Introduction
ER -
TY - CHAP
AU - Strauß, Sara
ED - Strauß, Sara
ED - Schäfer-Althaus, Sarah
ID - 20861
SN - 9783825346638
T2 - Transient Bodies in Anglophone Literature and Culture
TI - Ageing (Female) Bodies and Mortality in Eighteenth-Century Poetry
ER -
TY - JOUR
AU - Strauß, Sara
ID - 20862
IS - 1
JF - Journal for the Study of British Cultures
SN - 0944-9094
TI - Visualising Memory Loss and the Politics of Representation in Contemporary Portraiture
VL - 27
ER -
TY - JOUR
AU - Sievers, Sönke
AU - Degen, Dominik
AU - Kim, Daniel
AU - Kengelbach, Jens
ID - 20866
JF - M&A Review Europe
TI - How Private Equity can leverage downturn M&A for value creation
ER -
TY - GEN
AB - How is merger and acquisition (M&A) success associated with firm internal M&A process organization? The literature thus far acknowledges that unobservable internal firm characteristics are at least as important as observable firm- and deal-specific characteristics in regard to explaining M&A success. Thus, this paper directly asks M&A experts around the globe to shed more light on this important issue. We investigate three indices, capturing the degree of M&A 1) process standardization, 2) process duration, and 3) process attention. Next, we analyze the process participation among four organizational layers, i.e., the functional involvement of the a) top management team, b) headquarters, c) business unit management, and d) business unit functions. We predict and find that all three indices are positively associated with M&A success, while process standardization and attention to deal strategy are of particular importance. Turning to the four organizational layers, a textured analysis shows that, for instance, target valuation should be performed by the headquarters functions but not by the top management team or the business unit. Overall, our findings are important to better understand unexplored M&A success drivers and provide directions for future research. Finally, our results might help practitioners adjust their M&A process organization to further improve their M&A success.
AU - Sievers, Sönke
AU - Alexander, Schmitz
ID - 20871
KW - Mergers
KW - Acquisitions
KW - Success
KW - Processes
KW - Organization
TI - What matters for organizing M&As successfully?
ER -
TY - GEN
AU - Sievers, Sönke
AU - Keienburg, Georg
AU - Degen, Dominik
AU - Söllner, Tobias
AU - Kashyrkin, Anton
ID - 20873
TI - Alternative Deals Gain Traction
ER -
TY - JOUR
AU - Sievers, Sönke
AU - Degen, Dominik
AU - Kim, Daniel
AU - Kengelbach, Jens
ID - 20874
JF - M&A Review
TI - Downturn M&A: Die Erfolgsstrategie der Stunde?
ER -
TY - JOUR
AU - Hoffmann, Christin
AU - Thommes, Kirsten
ID - 20882
JF - Journal of Economic Behavior & Organization
SN - 0167-2681
TI - Can digital feedback increase employee performance and energy efficiency in firms? Evidence from a field experiment
ER -
TY - JOUR
AB - We experimentally compare the consequences for group cooperation of two decision mechanisms involving the extension of group membership. We analyze an exogenous decision (random draw) and an endogenous decision (made by a particular group member) mechanism to extend a temporary agent’s group membership. Our results reveal that the prospect of group membership extension affects not only the temporary but also the permanent group members’ contributions with an endogenous mechanism.
AU - Grund, Christian
AU - Harbring, Christine
AU - Thommes, Kirsten
AU - Tilkes, Katja Rebecca
ID - 20883
JF - Games
SN - 2073-4336
TI - Decisions on Extending Group Membership—Evidence from a Public Good Experiment
ER -
TY - JOUR
AU - Blömer, Johannes
AU - Brauer, Sascha
AU - Bujna, Kathrin
ID - 20888
IS - 4
JF - ACM Transactions on Algorithms
SN - 1549-6325
TI - A Complexity Theoretical Study of Fuzzy K-Means
VL - 16
ER -
TY - CHAP
AB - Today, software systems are rarely developed monolithically, but may be composed of numerous individually developed features. Their modularization facilitates independent development and verification. While feature-based strategies to verify features in isolation have existed for years, they cannot address interactions between features. The problem with feature interactions is that they are typically unknown and may involve any subset of the features. Contrary, a family-based verification strategy captures feature interactions, but does not scale well when features evolve frequently. To the best of our knowledge, there currently exists no approach with focus on evolving features that combines both strategies and aims at eliminating their respective drawbacks. To fill this gap, we introduce Fefalution, a feature-family-based verification approach based on abstract contracts to verify evolving features and their interactions. Fefalution builds partial proofs for each evolving feature and then reuses the resulting partial proofs in verifying feature interactions, yielding a full verification of the complete software system. Moreover, to investigate whether a combination of both strategies is fruitful, we present the first empirical study for the verification of evolving features implemented by means of feature-oriented programming and by comparing Fefalution with another five family-based approaches varying in a set of optimizations. Our results indicate that partial proofs based on abstract contracts exhibit huge reuse potential, but also come with a substantial overhead for smaller evolution scenarios.
AU - Knüppel, Alexander
AU - Krüger, Stefan
AU - Thüm, Thomas
AU - Bubel, Richard
AU - Krieter, Sebastian
AU - Bodden, Eric
AU - Schaefer, Ina
ID - 20891
SN - 0302-9743
T2 - Lecture Notes in Computer Science
TI - Using Abstract Contracts for Verifying Evolving Features and Their Interactions
ER -
TY - JOUR
AU - Bürger, Julius
AU - Riedl, Thomas
AU - Lindner, Jörg K.N.
ID - 20892
JF - Ultramicroscopy
SN - 0304-3991
TI - Influence of lens aberrations, specimen thickness and tilt on differential phase contrast STEM images
ER -
TY - JOUR
AB - Block copolymer (BCP) self-assembly is a promising tool for next generation lithography as microphase separated polymer domains in thin films can act as templates for surface nanopatterning with sub-20 nm features. The replicated patterns can, however, only be as precise as their templates. Thus, the investigation of the morphology of polymer domains is of great importance. Commonly used analytical techniques (neutron scattering, scanning force microscopy) either lack spatial information or nanoscale resolution. Using advanced analytical (scanning) transmission electron microscopy ((S)TEM), we provide real space information on polymer domain morphology and interfaces between polystyrene (PS) and polymethylmethacrylate (PMMA) in cylinder- and lamellae-forming BCPs at highest resolution. This allows us to correlate the internal structure of polymer domains with line edge roughnesses, interface widths and domain sizes. STEM is employed for high-resolution imaging, electron energy loss spectroscopy and energy filtered TEM (EFTEM) spectroscopic imaging for material identification and EFTEM thickness mapping for visualisation of material densities at defects. The volume fraction of non-phase separated polymer species can be analysed by EFTEM. These methods give new insights into the morphology of polymer domains the exact knowledge of which will allow to improve pattern quality for nanolithography.
AU - Bürger, Julius
AU - Kunnathully, Vinay S.
AU - Kool, Daniel
AU - Lindner, Jörg K. N.
AU - Brassat, Katharina
ID - 20893
JF - Nanomaterials
SN - 2079-4991
TI - Characterisation of the PS-PMMA Interfaces in Microphase Separated Block Copolymer Thin Films by Analytical (S)TEM
ER -
TY - JOUR
AU - Riha, Christian
AU - Buchholz, Sven S.
AU - Chiatti, Olivio
AU - Wieck, Andreas D.
AU - Reuter, Dirk
AU - Fischer, Saskia F.
ID - 17995
JF - Applied Physics Letters
SN - 0003-6951
TI - Excess noise in Al x Ga 1 − xAs/GaAs based quantum rings
ER -
TY - CHAP
AU - El Mesaoudi-Paul, Adil
AU - Weiß, Dimitri
AU - Bengs, Viktor
AU - Hüllermeier, Eyke
AU - Tierney, Kevin
ID - 18014
SN - 0302-9743
T2 - Learning and Intelligent Optimization. LION 2020.
TI - Pool-Based Realtime Algorithm Configuration: A Preselection Bandit Approach
VL - 12096
ER -
TY - GEN
AB - We consider an extension of the contextual multi-armed bandit problem, in
which, instead of selecting a single alternative (arm), a learner is supposed
to make a preselection in the form of a subset of alternatives. More
specifically, in each iteration, the learner is presented a set of arms and a
context, both described in terms of feature vectors. The task of the learner is
to preselect $k$ of these arms, among which a final choice is made in a second
step. In our setup, we assume that each arm has a latent (context-dependent)
utility, and that feedback on a preselection is produced according to a
Plackett-Luce model. We propose the CPPL algorithm, which is inspired by the
well-known UCB algorithm, and evaluate this algorithm on synthetic and real
data. In particular, we consider an online algorithm selection scenario, which
served as a main motivation of our problem setting. Here, an instance (which
defines the context) from a certain problem class (such as SAT) can be solved
by different algorithms (the arms), but only $k$ of these algorithms can
actually be run.
AU - El Mesaoudi-Paul, Adil
AU - Bengs, Viktor
AU - Hüllermeier, Eyke
ID - 18017
T2 - arXiv:2002.04275
TI - Online Preselection with Context Information under the Plackett-Luce Model
ER -
TY - CHAP
AU - Graf-Schlattmann, Marcel
AU - Meister, Dorothee M.
AU - Oevel, Gudrun
AU - Wilde, Melanie
ID - 18020
T2 - Zeitschrift für Hochschulentwicklung
TI - Kollektive Veränderungsbereitschaft als zentraler Erfolgsfaktor von Digitalisierungsprozessen an Hochschulen
ER -
TY - CONF
AU - Yigitbas, Enes
AU - Tejedor, Christopher Bernal
AU - Engels, Gregor
ID - 18021
T2 - Proceedings of the Mensch und Computer 2020 (MuC ’20)
TI - Experiencing and Programming the ENIAC in VR
ER -
TY - CONF
AU - Augstein, Mirjam
AU - Buschek, Daniel
AU - Herder, Eelco
AU - Loepp, Benedikt
AU - Yigitbas, Enes
AU - Ziegler, Jürgen
ID - 18022
T2 - Proceedings of the Mensch und Computer 2020 (MuC ’20)
TI - UCAI 2020 - 1st International Workshop on User-Centered Artificial Intelligence
ER -
TY - CONF
AU - Böttcher, Stefan
AU - Hartel, Rita
AU - Peeters, Sven
ID - 18038
SN - 9781450379748
T2 - Proceedings of The International Workshop on Semantic Big Data
TI - QSGG: query simulation in grammar-compressed graphs
ER -
TY - CONF
AU - Böttcher, Stefan
AU - Hartel, Rita
AU - Peeters, Sven
ID - 18039
SN - 9781728164571
T2 - 2020 Data Compression Conference (DCC) (Poster)
TI - Pattern Search in Grammar-Compressed Graphs
ER -
TY - GEN
AU - Skowronek, Michael
ID - 18066
TI - Approaches for Competetive Routing through Intersections of Hole Abstractions in Hybrid Communication Networks
ER -
TY - GEN
AU - Heimann, Jonas
ID - 18085
TI - Distributed Key Generation for Attribute-Based Signatures
ER -
TY - CONF
AU - Yigitbas, Enes
AU - Jovanovikj, Ivan
AU - Scholand, Janis
AU - Engels, Gregor
ID - 18109
T2 - Proceedings of the 26th ACM Symposium on Virtual Reality Software and Technology (VRST)
TI - VR Training for Warehouse Management
ER -
TY - BOOK
AU - Büker, Petra
AU - Höke, Julia
ID - 18142
TI - Bildungsdokumentation in KiTa und Grundschule stärkenorientiert gestalten
VL - 7
ER -
TY - CONF
AB - Augmented Reality (AR) has recently found high attention in mobile shopping apps such as in domains like furniture or decoration. Here, the developers of the apps focus on the positioning of atomic 3D objects in the physical environment. With this focus, they neglect the configuration of multi-faceted 3D object composition according to the user needs and environmental constraints. To tackle these challenges, we present a model-based approach to support AR-assisted product con-figuration based on the concept of Dynamic Software Product Lines. Our approach splits products (e.g. table) into parts (e.g. tabletop, ta-ble legs, funnier) with their 3D objects and additional information (e.g. name, price). The possible products, which can be configured out of these parts, are stored in a feature model. At runtime, this feature model can be used to configure 3D object compositions out of the product parts and adapt to user needs and environmental constraints. The benefits of this approach are demonstrated by a case study of configuring modular kitchens with the help of a prototypical mobile-based implementation.
AU - Gottschalk, Sebastian
AU - Yigitbas, Enes
AU - Schmidt, Eugen
AU - Engels, Gregor
ED - Bernhaupt, Regina
ED - Ardito, Carmelo
ED - Sauer, Stefan
ID - 18249
KW - Product Configuration
KW - Augmented Reality
KW - Runtime Adaptation
KW - Dynamic Software Product Lines
T2 - Human-Centered Software Engineering. HCSE 2020
TI - Model-based Product Configuration in Augmented Reality Applications
VL - 12481
ER -
TY - CONF
AB - Algorithm selection (AS) deals with the automatic selection of an algorithm
from a fixed set of candidate algorithms most suitable for a specific instance
of an algorithmic problem class, where "suitability" often refers to an
algorithm's runtime. Due to possibly extremely long runtimes of candidate
algorithms, training data for algorithm selection models is usually generated
under time constraints in the sense that not all algorithms are run to
completion on all instances. Thus, training data usually comprises censored
information, as the true runtime of algorithms timed out remains unknown.
However, many standard AS approaches are not able to handle such information in
a proper way. On the other side, survival analysis (SA) naturally supports
censored data and offers appropriate ways to use such data for learning
distributional models of algorithm runtime, as we demonstrate in this work. We
leverage such models as a basis of a sophisticated decision-theoretic approach
to algorithm selection, which we dub Run2Survive. Moreover, taking advantage of
a framework of this kind, we advocate a risk-averse approach to algorithm
selection, in which the avoidance of a timeout is given high priority. In an
extensive experimental study with the standard benchmark ASlib, our approach is
shown to be highly competitive and in many cases even superior to
state-of-the-art AS approaches.
AU - Tornede, Alexander
AU - Wever, Marcel Dominik
AU - Werner, Stefan
AU - Mohr, Felix
AU - Hüllermeier, Eyke
ID - 18276
T2 - ACML 2020
TI - Run2Survive: A Decision-theoretic Approach to Algorithm Selection based on Survival Analysis
ER -