Seen some very interesting articles in this related to machine learning has lots of other computer resources as well. Some articles are closed but can access.
Not really a journal as such more a magazine on all aspects of software development, all languages platforms and tools. Back issues in the Kevin street library. The back issues had a high impact factor so good for historic information and programming techniques.
(JMLR) provides an
international forum for the electronic and paper publication of
high-quality scholarly articles in all areas of machine learning.
All published papers are freely available online.