Stein, Oliver

English

KITopen

Mathematical Methods of Operations Research (2021) 93:209–211https://doi.org/10.1007/s00186-021-00739-9EDITORIAL2020 MMOR best paper awardOliver Stein1Accepted: 11 March 2021 / Published online: 16 April 2021© The Author(s) 2021Each year theMMOR Best Paper Award is bestowed on an excellent article publishedonline in MMOR during the previous year. The list of past and current awardees ispublished on the MMOR web page. Candidates are nominated by the members of theMMOR editorial board, and the editorial board decides about the awardee(s).In 2020 we published 32 papers online in MMOR. It is my great pleasure toannounce that the 2020 MMOR Best Paper Award has been bestowed on the paperInterplay of non-convex quadratically constrained problems with adjustable robustoptimizationby Immanuel Bomze and Markus GablMMOR 93 (2021), 115–151, published October 6, 2020.Abstract: In this paper we explore convex reformulation strategies for non-convexquadratically constrained optimization problems (QCQPs). First we investigate suchreformulations using Pataki’s rank theorem iteratively. We show that the result canbe used in conjunction with conic optimization duality in order to obtain a geo-metric condition for the S-procedure to be exact. Based upon known results on theS-procedure, this approach allows for some insight into the geometry of the jointnumerical range of the quadratic forms. Then we investigate a reformulation strategyintroduced in recent literature for bilinear optimization problems which is based onadjustable robust optimization theory. We show that, via a similar strategy, one canleverage exact reformulation results of QCQPs in order to derive lower bounds formore complicated quadratic optimization problems. Finally, we investigate the use ofreformulation strategies in order to derive characterizations of set-copositive matrixcones. Empirical evidence based upon first numerical experiments shows encouragingresults.B Oliver Steinstein@kit.edu1 Institute of Operations Research, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany123210 O. SteinSince 2004, ImmanuelM.Bomze holds a chair of AppliedMathematics and Statisticsat the University of Vienna. Bomze’s research interests are in the areas of OperationsResearch and Data Science, in particular nonlinear optimization and mathematicalmodeling, where he has edited one and published four books, as well as about 120peer-reviewed articles in scientific journals and monographs. The list of his co-authorscomprises nearly 100 scientists from more than a dozen countries in four continents.In 2014 he was elected Fellow of EurOpt, 2011–2017 he served as Co-Editor-in-Chiefof EJOR, 2018-2020 as EURO president, and from 2021 he is the Editor-in-Chief ofEJCO.Markus Gabl is Ph.D. student at the Vienna Graduate School on ComputationalOptimization since 2016. His research interests comprise applications of copositveprogramming approaches, such as quadratic and robust programming, as well as appli-cations of semidefinite programming in finance.Congratulations in the name of the MMOR editorial board !1232020 MMOR best paper award 211Funding Open Access funding enabled and organized by Projekt DEAL.OpenAccess This article is licensedunder aCreativeCommonsAttribution 4.0 InternationalLicense,whichpermits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you giveappropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence,and indicate if changes were made. The images or other third party material in this article are includedin the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. Ifmaterial is not included in the article’s Creative Commons licence and your intended use is not permittedby statutory regulation or exceeds the permitted use, you will need to obtain permission directly from thecopyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.Publisher’s Note Springer Nature remains neutral with regard to jurisdictional claims in published mapsand institutional affiliations.123

2020 MMOR best paper award

https://publikationen.bibliothek.kit.edu/1000135030/127794194

2020 MMOR best paper award

Abstract

Similar works

Full text

Available Versions

KITopen