Computational Tools for Evaluating Phylogenetic and Hierarchical Clustering Trees |
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| Authors: | John Chakerian Susan Holmes |
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| Affiliation: | 1. Palantir Technologies;2. Stanford University , Stanford , CA , 94305 |
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| Abstract: | This article presents an alternative derivation of the generalized approximate crossvalidation (GACV) score of Xiang and Wahba (1996) for smoothing parameter selection in penalized likelihood regression. The new derivation suggests a simple numerical solution that is stable for all sample sizes. Also suggested is a variant of the score that can be computationally more convenient. Simple simulations are presented to illustrate the effectiveness of the scores. |
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| Keywords: | Bootstrap Hierarchical clustering Multidimensional scaling Negatively curved space Phylogenetic tree |
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