Combinatorial Algorithms: 32nd International Workshop, IWOCA 2021, Ottawa, ON, Canada, July 5–7, 2021, Proceedings

605 Pages·2021·13.877 MB·English

by  Paola Flocchini, Lucia Moura

Paola Flocchini
Lucia Moura (Eds.)
S
S
o
C
R
A
7
5 Combinatorial
7
2
1

S
Algorithms
C
N
L
32nd International Workshop, IWOCA 2021
Ottawa, ON, Canada, July 5–7, 2021
Proceedings
Lecture Notes in Computer Science 12757
Founding Editors
Gerhard Goos, Germany
Juris Hartmanis, USA
Editorial Board Members
Elisa Bertino, USA Gerhard Woeginger , Germany
Wen Gao, China Moti Yung, USA
Bernhard Steffen , Germany
Advanced Research in Computing and Software Science
Subline of Lecture Notes in Computer Science
Subline Series Editors
Giorgio Ausiello, University of Rome ‘La Sapienza’, Italy
Vladimiro Sassone, University of Southampton, UK
Subline Advisory Board
Susanne Albers, TU Munich, Germany
Benjamin C. Pierce, University of Pennsylvania, USA
Bernhard Steffen , University of Dortmund, Germany
Deng Xiaotie, Peking University, Beijing, China
Jeannette M. Wing, Microsoft Research, Redmond, WA, USA
More information about this subseries at http://www.springer.com/series/7407
Paola Flocchini Lucia Moura (Eds.)
(cid:129)
Combinatorial
Algorithms
32nd International Workshop, IWOCA 2021
–
Ottawa, ON, Canada, July 5 7, 2021
Proceedings
123
Editors
PaolaFlocchini LuciaMoura
University of Ottawa University of Ottawa
Ottawa, ON,Canada Ottawa, ON,Canada
ISSN 0302-9743 ISSN 1611-3349 (electronic)
Lecture Notesin Computer Science
ISBN 978-3-030-79986-1 ISBN978-3-030-79987-8 (eBook)
https://doi.org/10.1007/978-3-030-79987-8
LNCSSublibrary:SL1–TheoreticalComputerScienceandGeneralIssues
©SpringerNatureSwitzerlandAG2021
Chapter“MinimumEccentricityShortest PathProblemwithRespect toStructural Parameters” is licensed
underthetermsoftheCreativeCommonsAttribution4.0InternationalLicense(http://creativecommons.org/
licenses/by/4.0/).Forfurtherdetailsseelicenseinformationinthechapter.
Thisworkissubjecttocopyright.AllrightsarereservedbythePublisher,whetherthewholeorpartofthe
material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation,
broadcasting, reproduction on microfilms or in any other physical way, and transmission or information
storageandretrieval,electronicadaptation,computersoftware,orbysimilarordissimilarmethodologynow
knownorhereafterdeveloped.
Theuseofgeneraldescriptivenames,registerednames,trademarks,servicemarks,etc.inthispublication
doesnotimply,evenintheabsenceofaspecificstatement,thatsuchnamesareexemptfromtherelevant
protectivelawsandregulationsandthereforefreeforgeneraluse.
Thepublisher,theauthorsandtheeditorsaresafetoassumethattheadviceandinformationinthisbookare
believedtobetrueandaccurateatthedateofpublication.Neitherthepublishernortheauthorsortheeditors
give a warranty, expressed or implied, with respect to the material contained herein or for any errors or
omissionsthatmayhavebeenmade.Thepublisherremainsneutralwithregardtojurisdictionalclaimsin
publishedmapsandinstitutionalaffiliations.
ThisSpringerimprintispublishedbytheregisteredcompanySpringerNatureSwitzerlandAG
Theregisteredcompanyaddressis:Gewerbestrasse11,6330Cham,Switzerland
Preface
The 32nd International Workshop on Combinatorial Algorithms (IWOCA 2021) was
originally scheduled to take place at the University of Ottawa, Canada. Due to the
COVID-19 pandemic, it was decided, a few months before the paper submission
deadline, that the conference would move online. The conference took place during
July 5–7, 2021, organized and coordinated from Ottawa by the IWOCA 2021
Organizing Committee, with online logistics support by The Fields Institute for
Research in Mathematical Sciences.
IWOCA is an annual conference series that started in 1989 as AWOCA
(Australasian Workshop on Combinatorial Algorithms) and became an international
conference in 2007, having been held in Australia, Canada, Czech Republic, Finland,
France, Indonesia, India, Italy, Japan, Singapore, South Korea, UK, and USA. The
conference brings together researchers on diverse topics related to combinatorial
algorithms, such as algorithms and data structures; algorithmic game theory; approx-
imationalgorithms;complexitytheory;combinatoricsandgraphtheory;combinatorial
generation and enumeration; combinatorial optimization; combinatorics of words and
strings;computationalgeometry;computationalbiology;cryptographyandinformation
security; graph algorithms; graph drawing and labelling; decompositions and combi-
natorial designs; distributed and network algorithms; dynamic and evolving networks;
mobile agents; new paradigms of computation; online algorithms; parallel algorithms;
parameterized and exact algorithms; probabilistic and randomized algorithms; and
streaming algorithms.
The Program Committee (PC) of IWOCA 2021 received 107 submissions. Each
submission was reviewed by at least three PC members and some trusted external
referees,andevaluatedonitsquality,originality,andrelevancetotheconference.The
PC selected 38 papers for presentation at the conference and inclusion in the
proceedings.
Four invited talks were given at IWOCA 2021, by Maria Chudnovsky (Princeton
University, USA), Anna Lubiw (University of Waterloo, Canada), David Peleg
(Weizmann Institute of Science, Israel), and Alfred Wassermann (University of
Bayreuth, Germany). This volume contains the abstracts of the four invited talks and
the paper versions of two of those invited talks.
The PC selected two contributions for the best paper and the best student paper
awards.ThebestpaperawardwasgiventoBenjaminMerlinBumpusandKittyMeeks
fortheirpaper “EdgeExplorationofTemporalGraphs”.Thebeststudentpaper award
was given to Stefan Lendl, Gerhard J. Woeginger, and Lasse Wulf for their paper
“Non-preemptive Tree Packing”.
IWOCA 2021 was held more than a year after a global pandemic was declared in
March 2020, a period that has been a trying time for everyone around the world.
During this period, computer scientists and mathematicians have quickly learned how
to teach, research, and collaborate remotely. In the midst of these uncertain times, the
vi Preface
response to our call for papers was a record number of submissions, for which we are
verygrateful.Whilewelongforatimewhenwewillbesharingknowledgeinthesame
geographicallocation,wearealsoverythankfultomanyindividualsandorganizations
who worked together to build a successful online conference.
We would like to thank all the authors who responded to the call for papers, the
invitedspeakers,themembersofthePC,theexternalreferees,andthemembersofthe
Organizing Committee.
We also thank Springer for publishing the proceedings of IWOCA 2021 in their
ARCoSS/LNCS series and for their financial support towards the best paper and the
best student paper awards.
We gratefully acknowledge the financial and logistics support from the following
institutions:TheFieldsInstituteforResearchinMathematicalSciences,theFacultyof
Engineering at uOttawa, and the University of Ottawa.
Finally, we thank the Steering Committee for giving us the opportunity to serve as
program chairs of IWOCA 2021 and for their continuous support.
July 2021 Paola Flocchini
Lucia Moura
Organization
Steering Committee
Maria Chudnovsky Princeton University, USA
Charles Colbourn Arizona State University, USA
Costas Iliopoulos King’s College London, UK
Ralf Klasing CNRS and University of Bordeaux, France
Wing-Kin (Ken) Sung National University of Singapore, Singapore
Program Committee
Hans L. Bodlaender Utrecht University, Netherlands
Ljiljana Brankovic University of Newcastle, UK
Charles Colbourn Arizona State University, USA
Alessio Conte University of Pisa, Italy
Celina M. H. de Figueiredo Federal University of Rio de Janeiro, Brazil
Giuseppe Antonio Di Luna University of Rome La Sapienza, Italy
Vida Dujmović University of Ottawa, Canada
Cristina G. Fernandes University of São Paulo, Brazil
Henning Fernau University of Trier, Germany
Gabriele Fici University of Palermo, Italy
Paola Flocchini (Co-chair) University of Ottawa, Canada
Florent Foucaud Clermont Auvergne University, France
Dalibor Froncek University of Minnesota Duluth, USA
Travis Gagie Dalhousie University, Canada
Luisa Gargano University of Salerno, Italy
Leszek Gąsieniec University of Liverpool, UK
Konstantinos Georgiou Ryerson University, Canada
Sylvie Hamel University of Montreal, Canada
Giuseppe F. Italiano LUISS Guido Carli University, Italy
Taisuke Izumi Osaka University, Japan
Ralf Klasing CNRS and University of Bordeaux, France
Rastislav Královič Comenius University, Slovakia
Thierry Lecroq University of Rouen Normandy, France
Zsuzsanna Lipták University of Verona, Italy
Bernard Mans Macquarie University, Australia
George Mertzios Durham University, UK
Othon Michail University of Liverpool, UK
Matúš Mihalák Maastricht University, Netherlands
Lucia Moura (Co-chair) University of Ottawa, Canada
Maura Paterson Birkbeck University of London, UK
Nicola Prezza Ca’ Foscari University of Venice, Italy
viii Organization
Tomasz Radzik King’s College London, UK
Joe Sawada University of Guelph, Canada
Michiel Smid Carleton University, Canada
Wing-Kin Sung National University of Singapore, Singapore
Jukka Suomela Aalto University, Finland
Koichi Wada Hosei University, Japan
Organizing Committee
Saman Bazargani University of Ottawa, Canada
Jean-Lou De Carufel University of Ottawa, Canada
Vida Dujmović (Co-chair) University of Ottawa, Canada
Paola Flocchini (Co-chair) University of Ottawa, Canada
Lucia Moura (Co-chair) University of Ottawa, Canada
Kanstantsin Pashkovich University of Waterloo, Canada
External Reviewers
Abdeddaim, Said Danziger, Peter
Akrida, Eleni C. de Castro Mendes Gomes, Guilherme
Almethen, Abdullah de Freitas, Rosiane
Asahiro, Yuichi de Lima, Paloma
Babu, Jasine Dev, Subhadeep
Bampas, Evangelos Dey, Sanjana
Bazgan, Cristina Dirk, Arnold
Boeckenhauer, Hans-Joachim dos Santos, Vinicius F.
Bonnet, François Eiben, Eduard
Bramas, Quentin Escoffier, Bruno
Bulteau, Laurent Fages, François
Cameron, Ben Fernández-Baca, David
Cao, Yixin Frei, Fabian
Casel, Katrin Gajjar, Kshitij
Centeno, Carmen Cecilia Ganian, Robert
Cenzato, Davide Gavenčiak, Tomáš
Chakraborty, Dibyayan Gibney, Daniel
Chaudhary, Juhi Giuliani, Sara
Chekuri, Chandra Gkikas, Angelos
Choudhary, Pratibha Gomez, Renzo
Cicalese, Ferdinando Gourdel, Garance
Colini Baldeschi, Riccardo Goyal, Pooja
Connor, Matthew Groenland, Carla
Cordasco, Gennaro Grzesik, Andrzej
Cotumaccio, Nicola Guinand, Frédéric
Cunha, Luis Gómez Brandón, Adrián
Dailly, Antoine Hahn, Gena
Organization ix
Hamm, Thekla Paixao, Joao
Hasunuma, Toru Paschos, Vangelis
Hoang, Chinh Pedrosa, Lehilton L. C.
Huang, Shenwei Pelantova, Edita
Italiano, Davide Picouleau, Christophe
Jiménez, Andrea Pouly, Amaury
Kamali, Shahin Prabhakaran, Veena
Katayama, Yoshiaki Punzi, Giulia
Kesselheim, Thomas Rescigno, Adele
Kindermann, Philipp Richomme, Gwenaël
Klobas, Nina Rizzo, Riccardo
Kobayashi, Yusuke Romana, Giuseppe
Kolay, Sudeshna Rossi, Massimiliano
Komusiewicz, Christian Rote, Günter
Labourel, Arnaud Rubei, Elena
Lafond, Manuel Rucci, Davide
Lee, Edward Saona Urmeneta, Raimundo
Lee, Euiwoong Schouery, Rafael
Lefebvre, Arnaud Shalom, Mordechai
Leupold, Peter Skretas, George
Liedloff, Mathieu Sopena, Eric
Lintzmayer, Carla Negri Stipulanti, Manon
Manabe, Yoshifumi Sudo, Yuichi
Manlove, David Takaoka, Asahi
Martins, Simone Theofilatos, Michail
Menasché, Daniel Sadoc Unger, Walter
Mercas, Robert Vaccaro, Ugo
Milanič, Martin Venturini, Rossano
Miltzow, Till Vialette, Stéphane
Mishra, Suchismita Wilczynski, Anaëlle
Mizuki, Takaaki Williams, Aaron
Molter, Hendrik Wolf, Petra
Mondal, Debajyoti Wong, Dennis
Moura, Phablo Yanagisawa, Nayuta
Mynhardt, Kieka Zhu, Binhai
Ono, Hirotaka Zschoche, Philipp
Ooshita, Fukuhito