Journal of Artificial Intelligence Research
JAIR is a refereed journal, covering all areas of Artificial Intelligence, which is distributed free of charge over the Internet. In addition, each complete volume of JAIR is published by Morgan Kaufmann.
www.cs.washington.edu/research/jair/home.html
Journal of Machine Learning Research (JMLR)
Provides an international forum for the electronic and paper publication of high-quality scholarly articles in all areas of machine learning.
jmlr.csail.mit.edu