[{"date_updated":"2026-04-27T09:31:42Z","author":[{"first_name":"Miriam","full_name":"Stumpe, Miriam","id":"64135","last_name":"Stumpe"},{"full_name":"Rößler-von Saß, David","last_name":"Rößler-von Saß","first_name":"David"},{"first_name":"Kliewer","last_name":"Natalia","full_name":"Natalia, Kliewer"},{"full_name":"Schryen, Guido","id":"72850","last_name":"Schryen","first_name":"Guido"}],"date_created":"2026-04-24T09:13:39Z","title":"Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems","publication_status":"accepted","quality_controlled":"1","year":"2026","citation":{"chicago":"Stumpe, Miriam, David Rößler-von Saß, Kliewer Natalia, and Guido Schryen. “Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems.” <i>Transportation Research Interdisciplinary Perspectives</i>, n.d.","ieee":"M. Stumpe, D. Rößler-von Saß, K. Natalia, and G. Schryen, “Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems,” <i>Transportation Research Interdisciplinary Perspectives</i>.","ama":"Stumpe M, Rößler-von Saß D, Natalia K, Schryen G. Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems. <i>Transportation Research Interdisciplinary Perspectives</i>.","apa":"Stumpe, M., Rößler-von Saß, D., Natalia, K., &#38; Schryen, G. (n.d.). Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems. <i>Transportation Research Interdisciplinary Perspectives</i>.","bibtex":"@article{Stumpe_Rößler-von Saß_Natalia_Schryen, title={Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems}, journal={Transportation Research Interdisciplinary Perspectives}, author={Stumpe, Miriam and Rößler-von Saß, David and Natalia, Kliewer and Schryen, Guido} }","mla":"Stumpe, Miriam, et al. “Impact of Vehicle Scheduling and Strategic Transition Planning on Zero-Emission Bus Systems.” <i>Transportation Research Interdisciplinary Perspectives</i>.","short":"M. Stumpe, D. Rößler-von Saß, K. Natalia, G. Schryen, Transportation Research Interdisciplinary Perspectives (n.d.)."},"_id":"65495","user_id":"40298","article_type":"original","keyword":["electric bus","multi-period planning","electric vehicle scheduling","charging infrastructure","fleet replacement"],"language":[{"iso":"eng"}],"type":"journal_article","publication":"Transportation Research Interdisciplinary Perspectives","abstract":[{"text":"This paper presents a holistic framework for the transition from diesel to electric bus networks,\r\ncrucial for meeting EU regulations targeting 100% zero-emission urban buses by\r\n2035. We employ a two-phase solution framework: in phase 1, we solve the Charging Location\r\nand Electric Vehicle Scheduling Problem to generate vehicle schedules that are feasible\r\nfor electric operation; in phase 2, these schedules serve as input to a multi-period transition\r\nplanning model that minimizes the total cost of ownership while determining fleet\r\nreplacement and charging infrastructure deployment. Our experiments show that schedules\r\nobtained from solving the integrated charging location and vehicle scheduling problem\r\nsignificantly outperform traditional methods, resulting in lower total cost of ownership. Additionally,\r\ntransition plans reduce local emissions by up to 85% compared to a diesel-only\r\nscenario. We find that vehicle rotations with long distances and sufficient idle time are\r\nprioritized for electrification, enabling earlier emission reductions and cost savings. This\r\nhighlights the importance of adopting vehicle scheduling tailored for electric buses, rather\r\nthan relying on legacy diesel schedules.","lang":"eng"}],"status":"public"},{"publication":"24th Intl. Conf. on Field Programmable Logic and Applications (FPL)","type":"conference","status":"public","department":[{"_id":"78"}],"user_id":"3118","_id":"10674","project":[{"grant_number":"257906","_id":"31","name":"Engineering Proprioception in Computing Systems"}],"language":[{"iso":"eng"}],"keyword":["Linux","hardware-software codesign","multiprocessing systems","parallel processing","LEON3 multicore platform","Linux kernel","PMU","hardware counters","hardware-software infrastructure","high performance embedded computing","perf_event","performance monitoring unit","Computer architecture","Hardware","Monitoring","Phasor measurement units","Radiation detectors","Registers","Software"],"page":"1-4","citation":{"ama":"Ho N, Kaufmann P, Platzner M. A hardware/software infrastructure for performance monitoring on LEON3 multicore platforms. In: <i>24th Intl. Conf. on Field Programmable Logic and Applications (FPL)</i>. ; 2014:1-4. doi:<a href=\"https://doi.org/10.1109/FPL.2014.6927437\">10.1109/FPL.2014.6927437</a>","chicago":"Ho, Nam, Paul Kaufmann, and Marco Platzner. “A Hardware/Software Infrastructure for Performance Monitoring on LEON3 Multicore Platforms.” In <i>24th Intl. Conf. on Field Programmable Logic and Applications (FPL)</i>, 1–4, 2014. <a href=\"https://doi.org/10.1109/FPL.2014.6927437\">https://doi.org/10.1109/FPL.2014.6927437</a>.","ieee":"N. Ho, P. Kaufmann, and M. Platzner, “A hardware/software infrastructure for performance monitoring on LEON3 multicore platforms,” in <i>24th Intl. Conf. on Field Programmable Logic and Applications (FPL)</i>, 2014, pp. 1–4.","mla":"Ho, Nam, et al. “A Hardware/Software Infrastructure for Performance Monitoring on LEON3 Multicore Platforms.” <i>24th Intl. Conf. on Field Programmable Logic and Applications (FPL)</i>, 2014, pp. 1–4, doi:<a href=\"https://doi.org/10.1109/FPL.2014.6927437\">10.1109/FPL.2014.6927437</a>.","bibtex":"@inproceedings{Ho_Kaufmann_Platzner_2014, title={A hardware/software infrastructure for performance monitoring on LEON3 multicore platforms}, DOI={<a href=\"https://doi.org/10.1109/FPL.2014.6927437\">10.1109/FPL.2014.6927437</a>}, booktitle={24th Intl. Conf. on Field Programmable Logic and Applications (FPL)}, author={Ho, Nam and Kaufmann, Paul and Platzner, Marco}, year={2014}, pages={1–4} }","short":"N. Ho, P. Kaufmann, M. Platzner, in: 24th Intl. Conf. on Field Programmable Logic and Applications (FPL), 2014, pp. 1–4.","apa":"Ho, N., Kaufmann, P., &#38; Platzner, M. (2014). A hardware/software infrastructure for performance monitoring on LEON3 multicore platforms. In <i>24th Intl. Conf. on Field Programmable Logic and Applications (FPL)</i> (pp. 1–4). <a href=\"https://doi.org/10.1109/FPL.2014.6927437\">https://doi.org/10.1109/FPL.2014.6927437</a>"},"year":"2014","date_created":"2019-07-10T11:18:01Z","author":[{"first_name":"Nam","last_name":"Ho","full_name":"Ho, Nam"},{"first_name":"Paul","full_name":"Kaufmann, Paul","last_name":"Kaufmann"},{"first_name":"Marco","last_name":"Platzner","full_name":"Platzner, Marco","id":"398"}],"date_updated":"2022-01-06T06:50:49Z","doi":"10.1109/FPL.2014.6927437","title":"A hardware/software infrastructure for performance monitoring on LEON3 multicore platforms"},{"status":"public","publication":"2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)","type":"conference","language":[{"iso":"eng"}],"keyword":["Linux","cache storage","embedded systems","granular computing","multiprocessing systems","reconfigurable architectures","Leon3 SPARe processor","custom logic events","evolvable-self-adaptable processor cache","fine granular profiling","integer unit events","measurement infrastructure","microarchitectural events","multicore embedded system","perf_event standard Linux performance measurement interface","processor properties","run-time reconfigurable memory-to-cache address mapping engine","run-time reconfigurable multicore infrastructure","split-level caching","Field programmable gate arrays","Frequency locked loops","Irrigation","Phasor measurement units","Registers","Weaving"],"department":[{"_id":"78"}],"user_id":"3118","_id":"10677","page":"31-37","citation":{"ama":"Ho N, Kaufmann P, Platzner M. Towards self-adaptive caches: A run-time reconfigurable multi-core infrastructure. In: <i>2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)</i>. ; 2014:31-37. doi:<a href=\"https://doi.org/10.1109/ICES.2014.7008719\">10.1109/ICES.2014.7008719</a>","chicago":"Ho, Nam, Paul Kaufmann, and Marco Platzner. “Towards Self-Adaptive Caches: A Run-Time Reconfigurable Multi-Core Infrastructure.” In <i>2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)</i>, 31–37, 2014. <a href=\"https://doi.org/10.1109/ICES.2014.7008719\">https://doi.org/10.1109/ICES.2014.7008719</a>.","ieee":"N. Ho, P. Kaufmann, and M. Platzner, “Towards self-adaptive caches: A run-time reconfigurable multi-core infrastructure,” in <i>2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)</i>, 2014, pp. 31–37.","apa":"Ho, N., Kaufmann, P., &#38; Platzner, M. (2014). Towards self-adaptive caches: A run-time reconfigurable multi-core infrastructure. In <i>2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)</i> (pp. 31–37). <a href=\"https://doi.org/10.1109/ICES.2014.7008719\">https://doi.org/10.1109/ICES.2014.7008719</a>","mla":"Ho, Nam, et al. “Towards Self-Adaptive Caches: A Run-Time Reconfigurable Multi-Core Infrastructure.” <i>2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)</i>, 2014, pp. 31–37, doi:<a href=\"https://doi.org/10.1109/ICES.2014.7008719\">10.1109/ICES.2014.7008719</a>.","bibtex":"@inproceedings{Ho_Kaufmann_Platzner_2014, title={Towards self-adaptive caches: A run-time reconfigurable multi-core infrastructure}, DOI={<a href=\"https://doi.org/10.1109/ICES.2014.7008719\">10.1109/ICES.2014.7008719</a>}, booktitle={2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)}, author={Ho, Nam and Kaufmann, Paul and Platzner, Marco}, year={2014}, pages={31–37} }","short":"N. Ho, P. Kaufmann, M. Platzner, in: 2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES), 2014, pp. 31–37."},"year":"2014","doi":"10.1109/ICES.2014.7008719","title":"Towards self-adaptive caches: A run-time reconfigurable multi-core infrastructure","date_created":"2019-07-10T11:23:00Z","author":[{"first_name":"Nam","full_name":"Ho, Nam","last_name":"Ho"},{"full_name":"Kaufmann, Paul","last_name":"Kaufmann","first_name":"Paul"},{"first_name":"Marco","id":"398","full_name":"Platzner, Marco","last_name":"Platzner"}],"date_updated":"2022-01-06T06:50:49Z"},{"year":"2007","citation":{"ama":"Schryen G. <i>Preventing E-Mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework</i>.; 2007.","ieee":"G. Schryen, <i>Preventing E-mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework</i>. 2007.","chicago":"Schryen, Guido. <i>Preventing E-Mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework</i>, 2007.","bibtex":"@book{Schryen_2007, title={Preventing E-mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework}, author={Schryen, Guido}, year={2007} }","mla":"Schryen, Guido. <i>Preventing E-Mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework</i>. 2007.","short":"G. Schryen, Preventing E-Mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework, 2007.","apa":"Schryen, G. (2007). <i>Preventing E-mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework</i>."},"has_accepted_license":"1","title":"Preventing E-mail Spam: The Conceptualization and the Analysis of an Infrastructure Framework","date_updated":"2022-01-06T07:03:00Z","oa":"1","author":[{"id":"72850","full_name":"Schryen, Guido","last_name":"Schryen","first_name":"Guido"}],"date_created":"2018-12-18T12:50:22Z","abstract":[{"lang":"eng","text":"Spamming remains a form of Internet abuse, which burdens the Internet infrastructure, is generally regarded as an annoyance, and is said to cause a huge economic harm. Many technological, organizational, and legislative anti-spam measures have already been proposed and implemented, but have not led to any substantial decrease in the number of spam e-mails. We propose a scalable and flexible infrastructure framework that integrates several anti-spam measures and that features both a technological and an organizational facet. The key element of our infrastructure is a new organizational unit that reliably and transparently limits the number of e-mails that can be sent per day and per account. We also analyze the proposed framework in terms of its theoretical effectiveness, the required resources, and its limitations."}],"file":[{"file_size":456755,"access_level":"open_access","file_name":"anti_spam_framework.pdf","file_id":"6322","date_updated":"2018-12-18T13:23:40Z","date_created":"2018-12-18T13:23:40Z","creator":"hsiemes","relation":"main_file","content_type":"application/pdf"}],"status":"public","type":"report","ddc":["000"],"keyword":["Email","Infrastructure","Internet","Spam"],"file_date_updated":"2018-12-18T13:23:40Z","language":[{"iso":"eng"}],"_id":"6287","user_id":"61579","department":[{"_id":"277"}]},{"type":"journal_article","status":"public","department":[{"_id":"277"}],"user_id":"61579","_id":"5655","file_date_updated":"2018-12-18T13:25:12Z","extern":"1","has_accepted_license":"1","intvolume":"         3","page":"66-90","citation":{"ama":"Schryen G. Do anti-spam measures effectively cover the e-mail communication network? A formal approach. <i>The Journal of Information Systems Security (AIS Special Interest Group in Security)</i>. 2007;3(2):66-90.","chicago":"Schryen, Guido. “Do Anti-Spam Measures Effectively Cover the e-Mail Communication Network? A Formal Approach.” <i>The Journal of Information Systems Security (AIS Special Interest Group in Security)</i> 3, no. 2 (2007): 66–90.","ieee":"G. Schryen, “Do anti-spam measures effectively cover the e-mail communication network? A formal approach,” <i>The Journal of Information Systems Security (AIS Special Interest Group in Security)</i>, vol. 3, no. 2, pp. 66–90, 2007.","bibtex":"@article{Schryen_2007, title={Do anti-spam measures effectively cover the e-mail communication network? A formal approach}, volume={3}, number={2}, journal={The Journal of Information Systems Security (AIS Special Interest Group in Security)}, author={Schryen, Guido}, year={2007}, pages={66–90} }","short":"G. Schryen, The Journal of Information Systems Security (AIS Special Interest Group in Security) 3 (2007) 66–90.","mla":"Schryen, Guido. “Do Anti-Spam Measures Effectively Cover the e-Mail Communication Network? A Formal Approach.” <i>The Journal of Information Systems Security (AIS Special Interest Group in Security)</i>, vol. 3, no. 2, 2007, pp. 66–90.","apa":"Schryen, G. (2007). Do anti-spam measures effectively cover the e-mail communication network? A formal approach. <i>The Journal of Information Systems Security (AIS Special Interest Group in Security)</i>, <i>3</i>(2), 66–90."},"volume":3,"author":[{"first_name":"Guido","last_name":"Schryen","id":"72850","full_name":"Schryen, Guido"}],"oa":"1","date_updated":"2022-01-06T07:02:22Z","publication":"The Journal of Information Systems Security (AIS Special Interest Group in Security)","file":[{"date_updated":"2018-12-18T13:25:12Z","creator":"hsiemes","date_created":"2018-12-18T13:25:12Z","file_size":100448,"file_id":"6324","access_level":"open_access","file_name":"Do anti-spam measures effectively cover the e-mail communication - Journal version.pdf","content_type":"application/pdf","relation":"main_file"}],"abstract":[{"text":"Spam e-mails have become a serious technological and economic problem. Up to now, by deploying complementary anti-spam measures, we have been reasonably able to withstand spam e-mails and use the Internet for regular communication. However, if we are to avert the danger of losing the Internet e-mail service in its capacity as a valuable, free and worldwide medium of open communication, anti-spam activities should be performed more systematically than is currently the case regarding the mainly heuristic, anti-spam measures in place. A formal framework, within which the existing delivery routes that a spam e-mail may take, and anti-spam measures and their effectiveness can be investigated, will perhaps encourage a shift in methodology and pave the way for new, holistic anti-spam measures. This paper presents a model of the Internet e-mail infrastructure as a directed graph and a deterministic finite automaton and draws on automata theory to formally derive the spam delivery routes. The most important anti-spam measures are then described. Methods controlling only specific delivery routes are evaluated in terms of how effectively they cover the modeled e-mail infrastructure; methods operating independently of any particular routes receive a more general assessment.","lang":"eng"}],"language":[{"iso":"eng"}],"keyword":["e-mail","spam","e-mail infrastructure","anti-spam measures","spamming options"],"ddc":["000"],"issue":"2","year":"2007","date_created":"2018-11-14T14:51:41Z","title":"Do anti-spam measures effectively cover the e-mail communication network? A formal approach"}]