neuraltalk-rnn-reference.Warning: Deprecated. Hi there, this code is now quite old and inefficient, and now deprecated. I am leaving it on Github for educational purposes, but if you would like to run or train image captioning I warmly recommend my new code release NeuralTalk2. NeuralTalk2 is written in Torch and is SIGNIFICANTLY (I mean, ~100x+) faster because it is batched and runs on the GPU. It also supports CNN finetuning, which helps a lot with performance.