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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Pal, R. Datta, A. Bittner, M.L. Dougherty, E.R. |
| Copyright Year | 2005 |
| Description | Author affiliation: Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA (Pal, R.; Datta, A.) |
| Abstract | Instantaneously random probabilistic Boolean networks (PBN's) have been recently introduced as a rule-based paradigm for modeling gene regulatory networks. Furthermore, it has been shown how ideas from optimal control of Markov decision processes can be used to desirably affect the dynamic evolution of the state of such a network. This paper considers the problem of optimal intervention in context sensitive PBNs, i.e. PBNs in which the state evolves over one or more time steps as a Boolean network with a fixed set of predictor functions until a random event such as an external stimulus (or a novel context) causes the network to switch to a new Boolean one. In addition, the paper seeks to accommodate random gene perturbations such as one or more gene flippings provided, at a given time step, the state either evolves according to the predictor functions or undergoes random perturbations but both do not occur simultaneously. Another novelty of the results reported in this paper is that the example PBN used for control is derived from steady-state (long run) considerations and the concept of influence is used to choose the intervention gene. For a PBN with n genes and k possible predictor sets, two possible solutions to the control problem are presented. In the first, the dimension of the state space is artificially increased to 2/sup n/k while in the second, it is shrunk back to 2/sup n/, the usual state dimension encountered in earlier work with instantaneously random PBNs. |
| Sponsorship | American Automatic Control Council |
| Starting Page | 411 |
| Ending Page | 416 |
| File Size | 250937 |
| Page Count | 6 |
| File Format | |
| ISBN | 0780390989 |
| ISSN | 07431619 |
| e-ISBN | 0780390997 |
| DOI | 10.1109/ACC.2005.1469970 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-06-08 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | American Automatic Control Council(AACC) |
| Subject Keyword | Intelligent networks Switches Steady-state Probability distribution Genomics Bioinformatics Optimal control State-space methods Genetics Wiring |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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