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The Multi-Agent Programming Contest: A résumé [article]

Tobias Ahlbrecht
2020 arXiv   pre-print
The Multi-Agent Programming Contest, MAPC, is an annual event organized since 2005 out of Clausthal University of Technology. Its aim is to investigate the potential of using decentralized, autonomously acting intelligent agents, by providing a complex scenario to be solved in a competitive environment. For this we need suitable benchmarks where agent-based systems can shine. We present previous editions of the contest and also its current scenario and results from its use in the 2019 MAPC with
more » ... the 2019 MAPC with a special focus on its suitability. We conclude with lessons learned over the years.
arXiv:2006.02739v1 fatcat:y3sc726psveeradojormv2324y

A Scalable Runtime Platform for Multiagent-Based Simulation [chapter]

Tobias Ahlbrecht, Jürgen Dix, Michael Köster, Philipp Kraus, Jörg P. M"uller
2014 Lecture Notes in Computer Science  
Using purely agent-based platforms for any kind of simulation requires to address the following challenges: (1) scalability (efficient scheduling of agent cycles is difficult), (2) efficient memory management (when and which data should be fetched, cached, or written to / from disk), and (3) modelling (no generally accepted meta-models exist: what are essential concepts, what implementation details?). While dedicated professional simulation tools usually provide rich domain libraries and
more » ... ibraries and advanced visualisation techniques, and support the simulation of large scenarios, they do not allow for "agentization" of single components. We are trying to bridge this gap by developing a distributed, scalable runtime platform for multiagent simulation, MASeRaTi , addressing the three problems mentioned above. It allows to plug-in both dedicated simulation tools (for the macro view) as well as the agentization of certain components of the system (to allow a micro view). If no agent-related features are used, its performance should be as close as possible to the legacy system used.
doi:10.1007/978-3-319-14484-9_5 fatcat:63fmfqgkqbb4parngfkco2dapy

Agent-Based Simulation for Software Development Processes [chapter]

Tobias Ahlbrecht, Jürgen Dix, Niklas Fiekas, Jens Grabowski, Verena Herbold, Daniel Honsel, Stephan Waack, Marlon Welter
2017 Lecture Notes in Computer Science  
Software development is a costly process and requires serious quality control on the management level: Managing a project with more than 10 programmers over several years is a highly nontrivial task. We are building tools for helping the manager to predict the future development of the project based on certain adjustable parameters. The main idea is to view the software process as agent-based simulation in a multiagent system (MAS). This approach requires to combine three different areas: (1)
more » ... ferent areas: (1) mining data and patterns from projects done in the past, (2) modeling the software development process in a multiagent environment (3) running the simulation on a dedicated and scalable multiagent platform. agents, simulation, software/management processes, software evolution, mining software repositories, conditional random fields
doi:10.1007/978-3-319-59294-7_28 fatcat:7eadto7sdfdcxhd7rwndhev5z4

Special Issue: Agents and Robots for Reliable Engineered Autonomy

Rafael C. Cardoso, Angelo Ferrando, Daniela Briola, Claudio Menghi, Tobias Ahlbrecht
2021 Journal of Sensor and Actuator Networks  
The study of autonomous agents is a well-established area that has been researched for decades, both from a design and implementation viewpoint [...]
doi:10.3390/jsan10030047 fatcat:bj3tsb4vcfc5nky3rael4vuswq

Agents and Robots for Reliable Engineered Autonomy:A Perspective from the Organisers of AREA 2020

Rafael C. Cardoso, Angelo Ferrando, Daniela Briola, Claudio Menghi, Tobias Ahlbrecht
2021 Journal of Sensor and Actuator Networks  
Multi-agent systems, robotics and software engineering are large and active research areas with many applications in academia and industry. The First Workshop on Agents and Robots for reliable Engineered Autonomy (AREA), organised the first time in 2020, aims at encouraging cross-disciplinary collaborations and exchange of ideas among researchers working in these research areas. This paper presents a perspective of the organisers that aims at highlighting the latest research trends, future
more » ... trends, future directions, challenges, and open problems. It also includes feedback from the discussions held during the AREA workshop. The goal of this perspective is to provide a high-level view of current research trends for researchers that aim at working in the intersection of these research areas.
doi:10.3390/jsan10020033 fatcat:t5yc7cx3rrfq5dahmpgoa5pj2u

Risk prediction of bleeding and MACCE by PRECISE-DAPT score post-PCI

Lisa Dannenberg, Shazia Afzal, Natalia Czychy, René M'Pembele, Saif Zako, Carolin Helten, Philipp Mourikis, Dorothee Zikeli, Samantha Ahlbrecht, Kajetan Trojovsky, Marcel Benkhoff, Maike Barcik (+4 others)
2021 International Journal of Cardiology: Heart & Vasculature  
Guidelines recommend the PRECISE-DAPT (PD) score to adapt duration of dual antiplatelet therapy due to bleeding risk. However, there is first evidence that PD predicts mortality and ischemic events as well. We investigated PD Score in 994 patients after percutaneous coronary intervention (PCI). PD was correlated with clinically frequently used scores. Major adverse cardiac and cerebrovascular events (MACCE) and Thrombolysis in Myocardial Infarction (TIMI) bleeding were assessed during one-year
more » ... ed during one-year follow-up. 524 patients had PD < 25 and 470 patients PD ≥ 25 (47%). Rate of major and minor bleeding was higher in the PD ≥ 25 group (major bleeding: Hazard ratio [HR] 2.9, 95% confidence interval [Cl] 1.01-8.16, p = 0.049; minor bleeding: HR 3.94, 95% Cl 1.36-9.19, p = 0.0096). Rate of MACCE, death and myocardial infarction were higher as well (MACCE: HR 2.0, 95% Cl 1.52-2.71, p < 0.0001; death: HR 3.9, 95% Cl 2.12-5.68, p < 0.0001; MI: HR 2.1, 95% Cl 1.26-3.43, p = 0.0041). Rate of stroke/transient ischemic attack did not differ between groups. Discriminative potency to predict major and minor bleeding, MACCE, death and MI were high with nearly equal cut-off values calculated by Youden's index (YI) (major bleeding: Area under the curve [AUC] 0.66; p = 0.026; YI 32; minor bleeding: AUC 0.72; p = 0.001; YI 28; MACCE: AUC 0.62; p < 0.0001; YI 24). In our cohort, PD score predicted bleeding moderately in post-PCI patients. In this study, ischemic events were predicted as well. Adaption of antiplatelet therapy duration by PD score is accurate. Nevertheless, it should be well-balanced with patient-related risk for ischemic events.
doi:10.1016/j.ijcha.2021.100750 pmid:33763519 pmcid:PMC7973296 fatcat:ahcnv4zcobcsthtn3viwgnevgu

Multi-Agent Programming Contest 2013: The Teams and the Design of Their Systems [chapter]

Tobias Ahlbrecht, Christian Bender-Saebelkampf, Maiquel de Brito, Nicolai Christian Christensen, Jürgen Dix, Mariana Ramos Franco, Hendrik Heller, Andreas Viktor Hess, Axel Heßler, Jomi Fred Hübner, Andreas Schmidt Jensen, Jannick Boese Johnsen (+14 others)
2013 Lecture Notes in Computer Science  
We additionally used a Swarming approach for the visual reconstruction of the graph, developed by our colleague Tobias Küster, as the MarsViewer maps the graph to a grid, but this information is not available  ... 
doi:10.1007/978-3-642-45343-4_22 fatcat:dldg2gyou5ecnejp3n5eiffpte

Titelei/Inhaltsverzeichnis [chapter]

Miriam Schlei
2016 Die Verwerfung eines Ablehnungsgesuchs als unzulässig  
Von Herzen danke ich meinem Freund Tobias, der mich auch während meiner Promotion in jeder Hinsicht unterstützt hat.  ...  Heiko Ahlbrecht, der mir ein Nebeneinander von Promotion und Beruf stets ermöglicht und durch seine Bereitschaft zur fachlichen Diskussion zur Realisierung dieser Arbeit beigetragen hat.  ... 
doi:10.5771/9783845265902-1 fatcat:d3lzsycnyjgsxl76wu6byf4quu

Acts of digital parasitism: Hacking, humanitarian apps and platformisation

Claudia Aradau, Tobias Blanke, Giles Greenway
2019 New Media & Society  
It won't be the last time either' (Ahlbrecht 2017) .  ...  (Ahlbrecht 2018) . Through the production of apps, digital humanitarianism becomes platformised.  ... 
doi:10.1177/1461444819852589 fatcat:nhsz65q62bej7p6frw3stbmxva

Typical Local Measurements in Generalized Probabilistic Theories: Emergence of Quantum Bipartite Correlations

Matthias Kleinmann, Tobias J. Osborne, Volkher B. Scholz, Albert H. Werner
2013 Physical Review Letters  
Ahlbrecht, and C. Budroni for helpful discussions and the Centro de Ciencias de Benasque, where part of this work was done, for its hospitality during the workshop on quantum information 2012.  ... 
doi:10.1103/physrevlett.110.040403 pmid:25166141 fatcat:pnturj2wezatnist4jms3r6ezu

Konflikteskalationsprävention auf Basis zivilgesellschaftlicher Initiativen am Beispiel des Friedensdorfes Neve Schalom/Wahat al-Salam

Verena Margit Schriebl
2011 unpublished
Ahlbrecht [u.a.] 2009: 17f.)  ...  Ahlbrecht [u.a.] 2009: 31) b.  ... 
doi:10.25365/thesis.17557 fatcat:in4pkonc3zcnvljpupjmc6zh6i

Die Bedeutung von Kationenkanälen und G-Protein-gekoppelten Rezeptoren für die Mechanosensorik und -transduktion in Blutgefäßen und in Podozyten

Ursula Storch
2018
Da Podocin und der Kationenkanal TRPC6 physisch miteinander interagieren und einen Proteinkomplex in der Schlitzmembran bilden (Huber et al., 2006) , wurde von Tobias B.  ...  Ein solcher mechanosensitiver Kanalkomplex wurde bei Säugetier-Podozyten von Tobias B. Huber und seinen Forscherkollegen aus Freiburg (Deutschland) postuliert (Huber et al., 2007) .  ... 
doi:10.5282/edoc.22785 fatcat:22m4nf425vclnafrbi6xirfmke

Disordered quantum walks in one lattice dimension

Andre Ahlbrecht, Volkher B. Scholz, Albert H. Werner
2011 Journal of Mathematical Physics  
Acknowledgement We would like to thank Reinhard Werner and Tobias Osborne for many valuable discussions and advice and David Gross for many interesting discussions about random matrices.  ... 
doi:10.1063/1.3643768 fatcat:iflctnqcknfhdntseluflcdifm

Geschichtsregionale Völkerrechtsforschung. Der Fall Südosteuropa

Adamantios Skordos
2012
Jahrhundert, Göttingen 2010; HEIKO AHLBRECHT: Geschichte der völkerrechtlichen Strafgerichtsbarkeit im 20.  ...  Response of the League of Nations to Terrorism, in: Journal of International Criminal Justice 4 (2006), S. 78-102, hier S. 79. 98 JOHANNA RINCEANU: Völkerstrafrecht in Rumänien, Berlin 2008, S. 122. 99 TOBIAS  ... 
doi:10.25627/20126139397 fatcat:2lasf2uf3fb37ox4dopws5s564

First-order corrections to the mean-field limit and quantum walks with non-orthogonal position states [article]

Robert Matjeschk, University, My
2019
Tobias Schätz, and Reinhard Werner.  ...  Part II The results presented in Chapters 8 and 9 were partly obtained in collaboration with Martin Enderlein, Thomas Huber, Christian Schneider, Hector Schmitz, Jan Glückert and Tobias Schätz.  ... 
doi:10.15488/8325 fatcat:pbxspkae5bcrzpubzv2o7kdwtm
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