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1 results

  • Clustering with Relational Constraint

  • Anuška Ferligoj, Vladimir Batagelj
  • Journal:
    Psychometrika / Volume 47 / Issue 4 / December 1982
    Published online by Cambridge University Press:
    01 January 2025, pp. 413-426

  • The paper deals with clustering problems where grouping is constrained by a symmetric and reflexive relation. For solving clustering problems with relational constraints two methods are adapted: the “standard” hierarchical clustering procedure based on the Lance and Williams formula, and local optimization procedure, CLUDIA. To illustrate these procedures, clusterings of the European countries are given based on the developmental indicators where the relation is determined by the geographical neighbourhoods of countries.