fbcunn

This quote caught my attention: "Caffe2go is core to the machine learning products at Facebook, together with research toolchains such as Torch. Because of its size, speed, and flexibility, we're rolling Caffe2go out across Facebook's stack." Does this mean that Torch will forever be relegated to R&D status within Facebook while production apps will always be Caffe, similar to the two-language problem[1] that Julia aims to solve? I know that Yann Lecun created Lush and Torch7 is a spiritual successor, which was used for many years in the Lecun's NYU AI research lab[2], but am curious if this means a slow decline of Torch's relevance despite the numerous Facebook torch extensions[3] released relatively recently. [1] https://www.opendatascience.com/conferences/odsc-east-2016-s... [2] https://www.reddit.com/r/MachineLearning/comments/25lnbt/

see https://github.com/facebook/fbcunn/blob/master/test/Referenc... for a loop nest that shows what the forward pass of a 2-d image convnet convolution module does. That's gussied up with convolution stride and padding and a bunch of C++11 mumbo jumbo, but you should be able to see what it is doing.

Deep Learning systems are becoming C++11's halo projects. Here are some deep learning libraries from the Internet Big 4. Amazon DSSTNE - https://github.com/amznlabs/amazon-dsstne Google TensorFlow - https://github.com/tensorflow/tensorflow/ Microsoft CNTK - https://github.com/Microsoft/CNTK/ Facebook fbcunn - https://github.com/facebook/fbcunn/ They all utilize C++11 or later. Just as Hadoop pushed Java in the big data, map-reduce realm, I think these libraries will push C++11 in the Deep Learning realm.

No. The license has a chilling clause that says if you ever suggest that any Facebook patent might be invalid, your license to use their code is automatically revoked. And in corporate world, that means any comment of any of your employees in an official capacity. Edit downvotes, well maybe the text of the clause will help > The license granted hereunder will terminate, automatically and without notice, for anyone that makes any claim ... by ... assertion or other action ... alleging .. that any right in any patent claim of Facebook is invalid or unenforceable. > https://github.com/facebook/fbcunn/blob/master/PATENTS

How can they claim this text file applies? There is also a file with the industry-standard name LICENSE (https://github.com/facebook/fbcunn/blob/master/LICENSE), with a standard looking BSD license in it. Surely somebody using it could claim that was the file that applied, and this other non-standard whimsical "PATENTS" file was irrelevant? Or can people just bury random licenses deep inside copyrighted works, and expect them to apply?

Here's a link to the patent clause: https://github.com/facebook/fbcunn/blob/master/PATENTS DannyBee, I'm having a hard time envisioning what sort of scenario might trigger this, and what the repercussions might be. Any chance you could explain?

This paper describes one part of the fbcunn release (the fast convolution layers implemented via FFT, with the source available at https://github.com/facebook/fbcunn/tree/master/src/cuda/fft). There's a lot more in fbcunn if you want to check it out.