To determine nonlinear I-V characteristics, the model was implemented to include a sequential tunneling mechanism of charge transfer by means of a stochastic selection of low resistive links ruled by the voltage-dependent probability[14, 15]: P i, j = exp − 2 l i, j ℏ 2 m ( Φ − e V i, j ), (3).
In the X-inactivation and allelic exclusion processes the functional capability or incapability is determined in a kind of stochastic selection by an as yet unknown selection in each individual cell: one allele stays potentially active and its partner becomes incapable of expressing itself [reviewed in [ 10]].
To overcome this we introduce a stochastic topology selection approach, analogous to stochastic variable selection in regression models (George and McCulloch, 1995), whereby only a random subset of topologies dictated by the data is maintained.
The alternative model is a two-step selection model that proposes that the Ly49 repertoire is fully formed already at the initial stage, by a stochastic process, and subsequently shaped by two selection steps: one selecting for cells expressing self-specific Ly49 receptors, and the other selecting against cells expressing too many self-specific receptors.
The stochastic selection process described by Eq. (7) imposes that the average hydrophobicity follows Eq. (5).
Allelic differences in gene expression are mediated by either parent-of-origin-specific selection (imprinting) or stochastic selection of alleles for activation and/or silencing.
The dynamic stochastic selection technique was put forward by ZHANG, et al [21] under the framework of multi-member DE.
One important result from our study is the suggestion that the mechanism that regulates copy number in the macronucleus is natural selection acting on the diversity generated by a stochastic process of gain and loss of chromosomes.
In an SBN, these probabilities are represented by random binary bit sequences and the selection of the Boolean functions is implemented by a stochastic multiplexer with properly generated control sequences.
The stochastic selection algorithm was implemented in Fortran.
