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For basic use, you can construct text vectors faster/better than word2vec/doc2vec.

The Python package which serves as an API to fasttext (https://pypi.python.org/pypi/fasttext/0.7.2 ) is well documented, is constantly being updated, and is easy to use.

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Does/can fastText use GPGPU at all? I use a CUDA cbow word2vec [1] that is really quick, and has served me quite well. Hard to know if switching to something more accurate would be worth giving up the speed :)

[1] https://github.com/ChenglongChen/word2vec_cbow

No, fastText is CPU only.

fastText is so fast, you may not need to use the GPU. That was their goal from the very beginning.

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