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26 April 2024
 
  » arxiv » cond-mat/9511072

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Similarity-Detection and Localization
Terence Hwa ; Michael Lassig ;
Date 15 Nov 1995
Subject Condensed Matter; Cellular Automata and Lattice Gases; Quantitative Methods | cond-mat comp-gas nlin.CG q-bio.QM
AffiliationUC San Diego) and Michael Lassig (Max-Planck Inst
AbstractThe detection of similarities between long DNA and protein sequences is studied using concepts of statistical physics. It is shown that mutual similarities can be detected by sequence alignment methods only if their amount exceeds a threshold value. The onset of detection is a continuous phase transition which can be viewed as a localization-delocalization transition. The ``fidelity’’ of the alignment is the order parameter of that transition; it leads to criteria for the selection of optimal alignment parameters.
Source arXiv, cond-mat/9511072
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