Algebraic Methods for Inferring Biochemical Networks: a Maximum Likelihood Approach

Details Algebraic Methods for Inferring Biochemical Networks: a Maximum Likelihood Approach Algebraic Methods for Inferring Biochemical Networks: a Maximum Likelihood Approach

2008-10-03

arxiv.org/abs/0810.0561v2

Statistics

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14 pages and 4 figures

Scientific paper

We present a novel method for identifying a biochemical reaction network based on multiple sets of estimated reaction rates in the corresponding reaction rate equations arriving from various (possibly different) experiments. The current method, unlike some of the graphical approaches proposed in the literature, uses the values of the experimental measurements only relative to the geometry of the biochemical reactions under the assumption that the underlying reaction network is the same for all the experiments. The proposed approach utilizes algebraic statistical methods in order to parametrize the set of possible reactions so as to identify the most likely network structure, and is easily scalable to very complicated biochemical systems involving a large number of species and reactions. The method is illustrated with a numerical example of a hypothetical network arising form a "mass transfer"-type model.

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