Fair-Balance Paradox, Star-tree Paradox, and Bayesian Phylogenetics
نویسندگان
چکیده
منابع مشابه
Fair-balance paradox, star-tree paradox, and Bayesian phylogenetics.
The star-tree paradox refers to the conjecture that the posterior probabilities for the three unrooted trees for four species (or the three rooted trees for three species if the molecular clock is assumed) do not approach 1/3 when the data are generated using the star tree and when the amount of data approaches infinity. It reflects the more general phenomenon of high and presumably spurious po...
متن کاملPriors for the Bayesian star paradox.
We show that the Bayesian star paradox, first proved mathematically by Steel and Matsen for a specific class of prior distributions, occurs in a wider context including less regular, possibly discontinuous, prior distributions.
متن کاملLETTERS Is There a Star Tree Paradox?
Concerns have been raised that posterior probabilities on phylogenetic trees can be unreliable when the true tree is unresolved or has very short internal branches, because existing methods for Bayesian phylogenetic analysis do not explicitly evaluate unresolved trees. Two recent papers have proposed that evaluating only resolved trees results in a ‘‘star tree paradox’’: when the true tree is u...
متن کاملThe Bayesian "star paradox" persists for long finite sequences.
The "star paradox" in phylogenetics is the tendency for a particular resolved tree to be sometimes strongly supported even when the data is generated by an unresolved ("star") tree. There have been contrary claims as to whether this phenomenon persists when very long sequences are considered. This note settles one aspect of this debate by proving mathematically that the chance that a resolved t...
متن کاملParadox and Relativism
Since the time of Plato, relativism has been attacked as a self-refuting theory. Today, there are two basic kinds of argument that are used to show that global relativism is logically incoherent: first, a direct descendent of the argument Plato uses against Protagoras, called the peritrope; and, second, a more recent argument that relativism leads to an infinite regress. Although some relativis...
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ژورنال
عنوان ژورنال: Molecular Biology and Evolution
سال: 2007
ISSN: 0737-4038,1537-1719
DOI: 10.1093/molbev/msm081