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Contributed Talk
Workshop: Advances in Modeling and Learning Interactions from Complex Data

A Data-Driven Sparse-Learning Approach to Model Reduction in Chemical Reaction Networks



In this paper, we propose an optimization-based sparse learning approach to iden- tify the set of most influential reactions in a chemical reaction network. This reduced set of reactions is then employed to construct a reduced chemical reaction mechanism, which is relevant to chemical interaction network modeling. The problem of identifying influential reactions is first formulated as a mixed-integer quadratic program, and then a relaxation method is leveraged to reduce the compu- tational complexity of our approach. Qualitative and quantitative validation of the sparse encoding approach demonstrates that the model captures important network structural properties with moderate computational load.

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