Piotr W. Mirowski Yann LeCun Dynamic Factor Graphs for Time Series Modeling. 128-143 2009 ECML/PKDD (2) http://dx.doi.org/10.1007/978-3-642-04174-7_9 conf/pkdd/2009-2 db/conf/pkdd/pkdd2009-2.html#MirowskiL09