Memory & Cognition

, Volume 31, Issue 2, pp 215–220 | Cite as

Convex hull and tour crossings in the Euclidean traveling salesperson problem: Implications for human performance studies

  • Iris Van Rooij
  • Ulrike Stege
  • Alissa Schactman


Recently there has been growing interest among psychologists in human performance on the Euclidean traveling salesperson problem (E-TSP). A debate has been initiated on what strategy people use in solving visually presented E-TSP instances. The most prominent hypothesis is the convex-hull hypothesis, originally proposed by MacGregor and Ormerod (1996). We argue that, in the literature so far, there is no evidence for this hypothesis. Alternatively we propose and motivate the hypothesis that people aim at avoiding crossings.


Convex Hull Boundary Point Interior Point Human Performance Travel Salesman Problem 
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Copyright information

© Psychonomic Society, Inc. 2003

Authors and Affiliations

  • Iris Van Rooij
    • 1
  • Ulrike Stege
    • 1
  • Alissa Schactman
    • 1
  1. 1.Department of PsychologyUniversity of VictoriaVictoriaCanada

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