Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Eriksson, Nicholas"'
Publikováno v:
Bernoulli 2007, Vol. 13, No. 4, 893-909
Conjunctive Bayesian networks (CBNs) are graphical models that describe the accumulation of events which are constrained in the order of their occurrence. A CBN is given by a partial order on a (finite) set of events. CBNs generalize the oncogenetic
Externí odkaz:
http://arxiv.org/abs/math/0608417
We consider the directed evolution of a population after an intervention that has significantly altered the underlying fitness landscape. We model the space of genotypes as a distributive lattice; the fitness landscape is a real-valued function on th
Externí odkaz:
http://arxiv.org/abs/q-bio/0511039
Autor:
Diaconis, Persi, Eriksson, Nicholas
Publikováno v:
Journal of Symbolic Computation, Volume 41, Issue 2, February 2006, Pages 182-195
To calibrate Fourier analysis of $S_5$ ranking data by Markov chain Monte Carlo techniques, a set of moves (Markov basis) is needed. We calculate this basis, and use it to provide a new statistical analysis of two data sets. The calculation involves
Externí odkaz:
http://arxiv.org/abs/math/0405060
We provide a polyhedral description of the conditions for the existence of the maximum likelihood estimate (MLE) for a hierarchical log-linear model. The MLE exists if and only if the observed margins lie in the relative interior of the marginal cone
Externí odkaz:
http://arxiv.org/abs/math/0405044
Autor:
Eriksson, Nicholas
Publikováno v:
Proceedings of the 2004 international symposium on symbolic and algebraic computation
We consider the phylogenetic tree model in which every node of the tree is observed and binary and the transitions are given by the same matrix on each edge of the tree. We are able to compute the Grobner basis and Markov basis of the toric ideal of
Externí odkaz:
http://arxiv.org/abs/math/0401175