  A reduced-order model based on Proper Orthogonal Decomposition (POD) is
proposed for the bidomain equations of cardiac electrophysiology. Its accuracy
is assessed through electrocardiograms in various configurations, including
myocardium infarctions and long-time simulations. We show in particular that a
restitution curve can efficiently be approximated by this approach. The
reduced-order model is then used in an inverse problem solved by an
evolutionary algorithm. Some attempts are presented to identify ionic
parameters and infarction locations from synthetic ECGs.
