World's Best Scientists 2026 revealed!
Pierre Hansen

Pierre Hansen

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Mathematics
Canada
2026
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Computer Science
Canada
2025

D-Index & Metrics

Computer Science

D-Index
91
Citations
39484
World Ranking
575
National Ranking
20

Mathematics

D-Index
91
Citations
39575
World Ranking
66
National Ranking
4

Research.com Recognitions

  • 2026 - Research.com Mathematics in Canada Leader Award
  • 2025 - Research.com Computer Science in Canada Leader Award
  • 2025 - Research.com Mathematics in Canada Leader Award
  • 2023 - Research.com Computer Science in Canada Leader Award
  • 2023 - Research.com Mathematics in Canada Leader Award
  • 2022 - Research.com Computer Science in Canada Leader Award
  • 1986 - EURO Gold Medal

Overview

Pierre Hansen is affiliated with HEC Montréal in Canada. Their research spans the fields of Computer Science and Mathematics, with a total of 12 publications related to Computer Science and 4 publications in Mathematics. Within these fields, Hansen's work specifically addresses subfields such as Geometry and Topology, Computer Vision and Pattern Recognition, Computational Theory and Mathematics, Signal Processing, and Computer Networks and Communications.

Their research topics include the following areas:

  • Graph theory and applications
  • Data Management and Algorithms
  • Constraint Satisfaction and Optimization
  • Advanced Image and Video Retrieval Techniques
  • Matrix Theory and Algorithms
  • Finite Group Theory Research
  • Advanced Numerical Analysis Techniques

Hansen's publication record features recent papers such as:

  • "On the difference of energies of a graph and its complement graph," 2020, Linear Algebra and its Applications
  • "Global exact optimization for covering a rectangle with 6 circles," 2021, Journal of Global Optimization
  • "A relation between proximity and the third largest distance eigenvalue of a graph," 2021, Discrete Applied Mathematics
  • "Corrigendum to "On the difference of energies of a graph and its complement graph" [Linear Algebra Appl. 595 (2020) 1-12]," 2021, Linear Algebra and its Applications
  • "Using symbolic calculations to determine largest small polygons," 2020, Journal of Global Optimization

Publications have appeared in venues where Hansen has multiple contributions, including:

  • Linear Algebra and its Applications
  • Journal of Global Optimization
  • Discrete Applied Mathematics
  • Operations Research Forum

Co-authorship has been shared with several frequent collaborators such as Seyed Ahmad Mojallal, with whom Hansen has co-authored three papers. Other notable coauthors include Andrei Sleptchenko, Angelo Sifaleras, Sonia Cafieri, and Frédéric Messine.

In addition to journal articles, Hansen has contributed to book publications, notably through Springer Science+Business Media with the book titled Variable Neighborhood Search, published in 2023.

Hansen received the EURO Gold Medal in 1986.

Best Publications

  • Variable neighborhood search

    N. Mladenović;P. Hansen

  • Variable neighborhood search: Principles and applications

    Pierre Hansen;Nenad Mladenović

  • NP-hardness of Euclidean sum-of-squares clustering

    Daniel Aloise;Amit Deshpande;Pierre Hansen;Preyas Popat

  • Variable Neighborhood Search: Methods and Applications

    Pierre Hansen;Nenad Mladenović;José A. Moreno Pérez

  • New branch-and-bound rules for linear bilevel programming

    Pierre Hansen;Brigitte Jaumard;Gilles Savard

  • Variable neighbourhood search: methods and applications

    Pierre Hansen;Nenad Mladenović;José A. Moreno Pérez

  • An Introduction to Variable Neighborhood Search

    Pierre Hansen;Nenad Mladenović

  • Cluster analysis and mathematical programming

    Pierre Hansen;Brigitte Jaumard

  • Bicriterion Path Problems

    Pierre Hansen

  • The p-median problem: A survey of metaheuristic approaches

    Nenad Mladenović;Jack Brimberg;Pierre Hansen;José A. Moreno-Pérez

  • Variable neighborhood search for the p-median

    P. Hansen;N. Mladenović

  • Algorithms for the maximum satisfiability problem

    Pierre Hansen;Brigitte Jaumard

  • Stabilized column generation

    Olivier du Merle;Daniel Villeneuve;Jacques Desrosiers;Pierre Hansen

  • Variable Neighborhood Decomposition Search

    Pierre Hansen;Nenad Mladenović;Dionisio Perez-Britos

  • Variable Neighborhood Search

    Jack Brimberg;Pierre Hansen;Nenad Mladenović;José A. Moreno Pérez

  • Essays and Surveys in Metaheuristics

    Celso Ribeiro;Pierre Hansen

  • Roof duality, complementation and persistency in quadratic 0–1 optimization

    Peter L. Hammer;Pierre Hansen;Bruno Simeone

  • J-Means: a new local search heuristic for minimum sum of squares clustering

    Pierre Hansen;Nenad Mladenović

  • Variable neighborhood search: basics and variants

    Pierre Hansen;Nenad Mladenović;Raca Todosijević;Saïd Hanafi

  • Variable neighborhood search for extremal graphs: 1 the AutoGraphiX system

    Gilles Caporossi;Pierre Hansen

  • Variable Neighbourhood Search

    P. Hansen;N. Mladenovic;J.A. Moreno

  • Variable Neighborhood Search.

    Pierre Hansen;Nenad Mladenovic

  • The p -Median Problem: A Survey of Metaheuristic Approaches

    Nenad Mladenović;Jack Brimberg;Pierre Hansen;José A. Moreno Pérez

Frequent Co-Authors

Brigitte Jaumard
Brigitte Jaumard Concordia University
Nenad Mladenović
Nenad Mladenović Khalifa University
Charles Audet
Charles Audet Polytechnique Montréal
Leo Liberti
Leo Liberti École Polytechnique
Jack Brimberg
Jack Brimberg Royal Military College of Canada
Martine Labbé
Martine Labbé Université Libre de Bruxelles
Jacques-François Thisse
Jacques-François Thisse Université Catholique de Louvain
Gilles Savard
Gilles Savard Polytechnique Montréal
Alain Hertz
Alain Hertz Polytechnique Montréal
Ivan Gutman
Ivan Gutman University of Kragujevac

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