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Kollaborative Tourenplanung mit dynamischer Kundenannahme und Überbuchungen

von Dr. Yannick Scherr (Gewinner YRA 2024)

In der Logistikbranche ist das unmittelbare Antworten auf Kundenanfragen entscheidend für die Wettbewerbsfähigkeit. Die dynamische Annahme von Aufträgen unter Unsicherheit sorgt allerdings dafür, dass die Ressourcen nicht optimal genutzt werden. Dies motiviert insbesondere kleinere Logistikdienstleister miteinander zu kooperieren, um Transportaufträge zu tauschen. In diesem Kontext betrachten wir ein Pickup-and-Delivery-Problem mit dynamischer Kundenannahme und horizontaler Kollaboration mittels kombinatorischer Auktion.

Wir modellieren das Optimierungsproblem der einzelnen Dienstleister als Markov-Entscheidungsprozess (MEP), der alle Phasen umfasst: von der dynamischen Kundenannahme über die Auswahl von Aufträgen für die Auktion, das Bieten auf Auftragsbündel in der Auktion, bis hin zur abschließenden Tourenplanung. Die gewinnmaximierende Zielfunktion umfasst den Umsatz aus angenommenen Kundenanfragen abzüglich der Kosten, die bei der Zustellung in Touren z.B. am nächsten Tag anfallen. In der dazwischenliegenden Auktion können Kosten eingespart werden.

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Optimale gemeinsame Tourenplanung von Lieferfahrzeugen und Lastenfahrrädern

von Asst. Prof. Philine Schiewe (Gewinnerin YRA 2024)

Paketlieferungen sind für viele schon lange ein Teil des Alltags und die damit verbundenen Lieferfahrzeuge sind aus dem heutigen Stadtbild kaum noch wegzudenken. Durch das hohe Paketvolumen trägt die Zustellung von Paketen auf der letzten Meile allerdings erheblich zu Staus und Umweltbelastungen in städtischen Bereichen bei. Daher ist es notwendig, traditionelle, dieselbetriebene Lieferfahrzeuge durch umweltfreundlichere Alternativen zu ergänzen. In den letzten Jahren sind dafür verschiedene Strategien vorgeschlagen worden. Zum Beispiel werden in Zwei-Stufen-Verfahren Pakete von Lieferfahrzeugen zunächst zu Mini-Depots im Stadtgebiet gebracht und von dort mit Hilfe von kleinen, möglicherweise autonomen, Fahrzeugen zu den Empfängern transportiert. Eine weiterer Vorschlag besteht darin, Drohnen in den Auslieferungsfahrzeugen zu transportieren, die einzelne Empfänger beliefern können.  Allerdings haben beide Strategien entscheidende Nachteile. Die Standortwahl und der Bau von Mini-Depots sind oft von politischen Faktoren beeinflusst und stationäre Mini-Depots sind wenig robust gegenüber Änderungen in der Nachfrage. Auch der Einsatz von Drohnen in urbanen Gebieten ist regulatorisch eingeschränkt. Zusätzlich sind die Transportkapazität von Drohnen und deren Reichweite beschränkt, so dass Drohnen oft nur ein Paket transportieren und sich nicht weit von dem Lieferfahrzeug entfernen können.

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30th Annual Meeting of the German Finance Association (DGF)

We cordially invite researchers and practitioners to participate in the 30th Annual Meeting of the German Finance Association (DGF) organized by the Department of Finance of RWTH Aachen University between September 26 and 28, 2024 

Call for Papers

We invite submissions of recent research papers. Guidelines for the submission are:

  • Submissions are only accepted through the online submission system (https://www.conftool.net/dgf2024/index.php?page=submissions).
  • The submission period is from February 01, 2024, to April 30, 2024 (midnight, CET).
  • Submissions are subject to a double-blind review process. Thus, papers have to be submitted in an anonymous format (no reference(s) to author(s) or affiliation(s)).
  • Only full papers in English are considered for review. Papers should be accompanied by an abstract of no more than 120 words.
  • Submissions accepted for presentation are also eligible for a special issue of the Journal of Business Economics comprising among other things Stefan Nagel’s keynote speech (see separate call on the Journal homepage; independent submission required, this is not an official publication outlet of the DGF)

For all necessary information (including location, accommodation, etc.) please visit www.dgf2024-conference.de.

On September 26, 2024, RWTH Aachen University will host several events, including a doctoral workshop and a Women-in-Finance event. Beginning in the early afternoon at about 3:00 pm, all participants are invited to join: 

  • a Women-in-Finance keynote speech by Mila Getmansky Sherman (University of Massachusetts Amherst, Isenberg School of Management),
  • a Meet-the-Editors session with Thierry Foucault (HEC Foundation Chaired Professor of Finance) and Stefan Nagel (Fama Family Distinguished Service Professor of Finance at the University of Chicago, Booth School of Business),
  • a practitioners’ talk on asset management.

We are looking forward to welcoming all participants to the get-together starting at 7:00 pm and hope for strong participation in the Thursday events. For more information on the Women-in-Finance and doctoral workshops, please visit www.dgf2024-conference.de.

On September 27 and 28, 2024, the School of Business Studies of FH Aachen will host about 30 sessions and a poster session, featuring the presentations of approximately 95 research papers. We are particularly proud to announce that this year’s keynote speech will be delivered by Stefan Nagel. Following the keynote, participants will have the opportunity to join a city tour of the beautiful and historic city of Aachen, followed by the conference dinner at City Hall Aachen.

The best paper and the best paper exclusively written by a PhD student will both be awarded prizes.

This year’s conference will include the following special sessions:

Deutsche Bundesbank Session on Banking Supervision & Regulation:

Topics to be addressed in this dedicated session include the linkages between bank and non-bank financial intermediaries, credit, sovereign and ESG risk, deposit stability and liquidity risk, interest rate risk and asset/liability management, stress testing and risk models, systemic risk and financial stability, as well as big data and machine learning in financial regulation.

VR-Bank eG  Region Aachen Session on Household Finance and Retail Banking:

This dedicated session centers around research related to the financial decision-making of private households. The topics covered include consumer behavior in retail banking, financial inclusion, literacy, and accessibility, technological innovations in personal finance, household expectations regarding economic issues, household consumption and saving behavior, as well as behavioral economics in household finance.

Session on Stochastic Finance and Statistics:

The dynamic nature of financial markets and the inherent yet changing risks, ranging from systemic to asset-specific risks, require reliable and sophisticated methods to support the management of risk exposures and mitigation of financial risks. Therefore, this session is dedicated to exploring how one can measure, detect, surveil, and infer changes in the stochastic structure of financial data and risks.

Session on Behavioral and Experimental Finance:

Behavioral perspectives are now being integrated into various fields to enhance our understanding of decision-making and market outcomes. Experiments have become a popular method for causally studying these behavioral questions. This session aims to bring together work from all fields of finance where research is conducted with a behavioral perspective and/or through experimental methods. The goal is to better understand when behavioral approaches are necessary to accurately describe behavior and when such descriptions can be based on standard assumptions.

Early bird registration for conference participation is from May 1 to July 31, 2024. Late registration starts September 1 and is available until September 20, 2024.

We are looking forward to an interesting conference and to welcoming you to Aachen!

Kind regards,

Wolfgang Breuer                           Andreas Knetsch                   Philipp Schmitz                                       
Peter Letmathe                             Lisa Spantig                          Ansgar Steland

KOI 2024

International Conference on Operational Research (KOI) brings together scientists and academics as well as practitioners from various aspects of OR with the aim of establishing contacts network, presenting research ideas and sharing the most valuable experiences.

The conference is organized by Croatian Operational Research Society (CRORS) in cooperation with Faculty of Economics Business and Tourism, University of Split, as co-organizer. The conference KOI 2024 will be held on September 25-27, 2024.

Further information can be found here: https://hdoi.hr/koi-2024/ .

CO@Work: Computational Optimization at Work 2024

The summer school CO@Work 2024 will be held from September 16 to 27, 2024, at Zuse Institute Berlin and is organized jointly by TU Berlin, HTW Berlin, and Zuse Institute Berlin, and co-sponsored by GOR, Forschungscampus MODAL, I²DAMO, Gurobi, and FICO. This block course addresses everyone interested in the use of computational optimization and mathematical programming in concrete applications from practice, in particular advanced masters students, PhD students, and post-docs. CO@Work2024 will be the seventh incarnation of this workshop series, and the fifth one being held in Berlin.

Application is open now until we reach the capacity limit, latest on June 1, 2024.

The registration fee will be 100 EUR per participant, waived for students from Berlin universities. The language of the course is English.

Schedule

We will start with an opening session and welcome reception on Monday. The other days will follow the template schedule with lectures in the morning and hands-on exercises in the afternoon. The day of the excursion during the second week is still tentative. Examinations for all students that wish to obtain an ECTS certificate will be held one week after the summer school, on-site for students from Berlin universities and remotely for other participants.

Topics
Monday, September 16History of Operations Research and Mathematical Optimization
Tuesday, September 17Fundamentals of Linear Programming and Modelling
Wednesday, September 18Fundamentals of Mixed Integer Programming
Thursday, September 19Advanced Mathematical Optimization
Friday, September 20Interactive Optimization and Learning
Saturday, September 21Computational Challenge
Sunday, September 22Day off
Monday, September 23Applied Machine Learning and Optimization
Tuesday, September 24Excursion
Wednesday, September 25Energy Systems
Thursday, September 26Traffic and Logistics
Friday, September 27Industry Day and Closing Session

Further pieces of information can be found under https://co-at-work.zib.de/ .