OPTIMIZATIONACADEMIC WEBSITE
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ABOUT

PERSONAL DETAILS

Welcome to my personal and academic profile. I am currently a postdoc researcher at the Instiute of Operations und Information Systems at University of Gray. Before that I was postdoc researcher and coordinator of the DK Discrete Mathematics at Graz University of Technology in the combinatorial optimization group. I did my PhD studies as a member of the DK Discrete Mathematics under the supervision of Bettina Klinz.

Mail: lendl [at] math.tugraz.at

RESEARCH INTERESTS
  • Robust optimization
  • Combinatorial optimization
  • Parameterized complexity
  • Transportation optimization
  • Production scheduling
  • Location problems
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PUBLICATIONS

PUBLICATION LIST

2022

Goerigk, Marc; Lendl, Stefan; Wulf, Lasse

Two-stage robust optimization problems with two-stage uncertainty Journal Article

European Journal of Operational Research, 2022.

BibTeX

2021

Lendl, Stefan; Peis, Britta; Timmermans, Veerle

Matroid bases with cardinality constraints on the intersection Journal Article

Mathematical Programming, pp. 1–24, 2021.

BibTeX

Hartmann, Tim A; Lendl, Stefan; Woeginger, Gerhard J

Continuous facility location on graphs Journal Article

Mathematical Programming, 2021, (accepted).

BibTeX

Grigoriev, Alexander; Hartmann, Tim A; Lendl, Stefan; Woeginger, Gerhard J

Dispersing Obnoxious Facilities on a Graph Journal Article

Algorithmica, 2021.

Links | BibTeX

Lachmann, Thomas; Lendl, Stefan; Woeginger, Gerhard J

A linear time algorithm for the robust recoverable selection problem Journal Article

Discrete Applied Mathematics, 303 , pp. 94–107, 2021.

Links | BibTeX

Chiarelli, Nina; Dallard, Clément; Darmann, Andreas; Lendl, Stefan; č, Martin Milani; č, Peter Murši; č, Nevena Piva; Pferschy, Ulrich

Allocating Indivisible Items with Minimum Dissatisfaction on Preference Graphs Inproceedings

International Conference on Algorithmic Decision Theory, pp. 243–257, Springer 2021.

BibTeX

Lendl, Stefan; Woeginger, Gerhard; Wulf, Lasse

Non-preemptive Tree Packing Inproceedings

International Workshop on Combinatorial Algorithms, pp. 456–468, Springer 2021.

BibTeX

Ç, Eranda ; Klinz, Bettina; Lendl, Stefan; Orlin, James B; Woeginger, Gerhard J; Wulf, Lasse

Linearizable Special Cases of the Quadratic Shortest Path Problem Inproceedings

International Workshop on Graph-Theoretic Concepts in Computer Science, pp. 245–256, Springer 2021.

BibTeX

Grigoriev, Alexander; Hartmann, Tim A; Lendl, Stefan; Woeginger, Gerhard J

Dispersing obnoxious facilities on a graph Journal Article

Algorithmica, 83 (6), pp. 1734–1749, 2021.

BibTeX

'c, Ante {'C}usti; Lendl, Stefan

The Steiner cycle and path cover problem on interval graphs Journal Article

Journal of combinatorial optimization, pp. 1–9, 2021.

BibTeX

Fischer, Dennis; Hartmann, Tim A; Lendl, Stefan; Woeginger, Gerhard J

An Investigation of the Recoverable Robust Assignment Problem Inproceedings

16th International Symposium on Parameterized and Exact Computation, 2021.

BibTeX

Goerigk, Marc; Lendl, Stefan

Robust Combinatorial Optimization with Locally Budgeted Uncertainty Journal Article

Open Journal of Mathematical Optimization, 2 , pp. 1–18, 2021.

BibTeX

Deineko, Vladimir; Dragoti-Çela, Eranda; Klinz, Bettina; Lendl, Stefan; Woeginger, Gerhard J

Matrix Completion Problems Miscellaneous

2021, (in preparation).

BibTeX

Goerigk, Marc; Lendl, Stefan; Wulf, Lasse

Recoverable Robust Optimization with Discrete Budgeted Uncertainty Journal Article

2021, (submitted).

BibTeX

Goerigk, Marc; Lendl, Stefan; Wulf, Lasse

On the Recoverable Traveling Salesman Problem Journal Article

arXiv preprint arXiv:2111.09691, 2021.

BibTeX

Hoang, Hung P; Lendl, Stefan; Wulf, Lasse

Assistance and Interdiction Problems on Interval Graphs Journal Article

arXiv preprint arXiv:2107.14550, 2021, (submitted).

BibTeX

2020

Hartmann, Tim A; Lendl, Stefan; Woeginger, Gerhard J

Continuous facility location on graphs Journal Article

21st Conference on Integer Programming and Combinatorial Optimization (IPCO), 2020, (published).

Links | BibTeX

2019

Grigoriev, Alexander; Hartmann, Tim A; Lendl, Stefan; Woeginger, Gerhard J

Dispersing Obnoxious Facilities on a Graph Inproceedings

36th International Symposium on Theoretical Aspects of Computer Science, STACS 2019, March 13-16, 2019, Berlin, Germany, pp. 33:1–33:11, 2019.

Links | BibTeX

Lendl, Stefan; 'C, Ante ; Punnen, Abraham P

Combinatorial Optimization Problems with Interaction Costs: Complexity and Solvable Cases Journal Article

Discrete Optimization, 33 , pp. 101 – 117, 2019.

Links | BibTeX

Lendl, Stefan; Peis, Britta; Timmermans, Veerle

Matroid Sum with Cardinality Constraints on the Intersection Journal Article

17th Cologne-Twente Workshop on Graphs & Combinatorial Optimization, 2019, (Extended Abstract).

BibTeX

2018

Alese, Leonardo; Lendl, Stefan; Tabatabai, Paul

On sequences covering all rainbow k-progressions Journal Article

Journal of Combinatorics, 9 (4), pp. 739 – 745, 2018.

Links | BibTeX

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RESEARCH

RESEARCH PROJECTS
Theory

Robust Discrete Optimization

Robust Discrete Optimization

About The Project
TODO: project description
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RESUME

EDUCATION
  • 2015
    2019
    Graz

    Doctoral Progam: Discrete Mathematics

    Graz University of Technology

    Supervisor: Bettina Klinz Project: Structural investigations on combinatorial optimisation problems
  • 2014
    2015
    Graz

    Master Program: Technical Mathematics: Operations Research and Statistics

    Graz University of Technology

  • 2010
    2014
    Graz

    Bachelor Program: Technical Mathematics

    Graz University of Technology

  • 2006
    2010
    Pinkafeld

    EDV und Organisation (Computer Science and Business Administration)

    HTBLuVA Pinkafeld

ACADEMIC AND PROFESSIONAL POSITIONS
  • 2019
    NOW
    Graz

    Postdoc Researcher and DK Coordinator

    Institute of Discrete Mathematics, Graz University of Technology

  • 2015
    2019
    Graz

    Doctoral position

    Institute of Discrete Mathematics, Graz University of Technology

    in the "DK Discrete Mathematics"
  • 2009
    2015
    Gamlitz/Graz

    Software Developer

    WebAgentur Körbler

    Development of web applications; part-time for some periods
  • 2020
    NOW
    Graz

    Partner

    s2 data & algorithms

    Website: s2-data.at
HONORS AND AWARDS
  • 2018
    Graz

    Winning team at the Green Tech Jam 2018

    E-Charge+ (Leonardo Alese, Roberto Lerche, Stefan Lendl, Ciril Wakounig)

    Concept and prototype of a routing app for e-charging stations of Energie Graz including a gamification concept.
  • 2016
    Vienna

    ÖGOR Diplomarbeitenpreis für Operations Research

    ÖGOR

    Price for the best master thesis of the Austrian Society of Operations Research.
  • 2008
    Cairo

    Contestant at the IOI (International Olympiad in Informatics)

    representing Austria

    Qualified with a 4th place at the Austrian national competition.
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TALKS

Talk List
  • Efficient Algorithms for the Recoverable (Robust) Selection Problem
    at 17th Cologne-Twente Workshop on Graphs & Combinatorial Optimization, University of Twente, Enschede, The Netherlands
    July 1-3, 2019.
  • Combinatorial Optimization with Interaction Costs
    at Joint EURO/ORSC/ECCO Conference 2017 on Combinatorial Optimization, Koper, Slovenia
    May 3-6, 2017
  • Time-Expanded Combinatorial Optimization Problems
    at 20th Workshop on Future Research in Combinatorial Optimization – FRICO 2016, University of Osnabrück, Germany
    August 2-5, 2016
  • The Timetabling Problem at the Campus 02 University of Applied Sciences
    at 6th Workshop on Young Academics‘ Management Science– YAMS
    November 27, 2015
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TEACHING

CURRENT
  • 2019
    NOW
    Graz

    Optimierung 1 (Optimization 1)

    TU Graz

    lecture unit about modelling with AMPL; exercise units for a 2nd year bachelor course about the basics of optimization; taught multiple times
TEACHING HISTORY
  • 2014
    2015
    Graz

    Operations Research

    FH Campus 02

    Teaching parts of the Operations Research course
  • 2013
    2015
    Graz

    Mathematics for Mechanical/Electrical Engineering

    Graz University of Technology

    Exercise units for first and second year mechanical engineering students; taught multiple times
  • 2012
    2014
    Graz

    Data Structures and Algorithms

    Graz University of Technology

    Exercise units for second year computer science students; taught multiple times
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CONTACT

Drop me a line

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