arXiv:1103.4347 공식 코드 · Papers with Code

Phylogenetic automata, pruning, and multiple alignment

Oscar Westesson, Gerton Lunter, Benedict Paten, Ian Holmes

제출 2011-03-22

원문 초록

We present an extension of Felsenstein's algorithm to indel models defined on entire sequences, without the need to condition on one multiple alignment. The algorithm makes use of a generalization from probabilistic substitution matrices to weighted finite-state transducers. Our approach may equivalently be viewed as a probabilistic formulation of progressive multiple sequence alignment, using partial-order graphs to represent ensemble profiles of ancestral sequences. We present a hierarchical stochastic approximation technique which makes this algorithm tractable for alignment analyses of reasonable size.

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