Self‐Weighted Optimization: Tree Searches and Character State Reconstructions under Implied Transformation Costs

@article{Goloboff1997SelfWeightedOT,
  title={Self‐Weighted Optimization: Tree Searches and Character State Reconstructions under Implied Transformation Costs},
  author={Pablo A. Goloboff},
  journal={Cladistics},
  year={1997},
  volume={13}
}
A method to assess the cost of character state transformations based on their congruence is proposed. Measuring the distortion of different transformations with a convex increasing function of the number of transformations, and choosing those reconstructions which minimize the distortion for all transformations, may provide a better optimality criterion than the linear functions implemented in currently used methods for optimization. If trees are optimized using such a measure, transformation… Expand
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