[matsiyatzy]

Here's a (currently incomplete) list of Deep Learning frameworks : https://docs.google.com/spreadsheets/d/1XvGfi3TxWm7kuQ0DUqYr...

There are many :)

[aristus]

Missing Vowpal Wabbit: http://hunch.net/~vw/

[charlescearl]

I'm not sure if it's a deep learning framework. Perhaps they are in some ways complementary http://hunch.net/?p=2875548. Who knows, maybe CNTK is one big reduction.