Dörthe Malzahn Manfred Opper A Variational Approach to Learning Curves. 463-469 2001 conf/nips/2001 NIPS http://www-2.cs.cmu.edu/Groups/NIPS/NIPS2001/papers/psgz/LT25.ps.gz db/conf/nips/nips2001.html#MalzahnO01