The document describes a presentation given at AWS re:Invent 2017 about using tensors for large-scale topic modeling and deep learning. It discusses how Amazon SageMaker implements latent Dirichlet allocation (LDA) for topic modeling of document corpora faster and cheaper than other frameworks. Benchmark results show the SageMaker LDA training and inference is significantly faster and cheaper compared to other open source tools like Mallet. The presentation also discusses using tensor methods for neural topic modeling and sequence modeling with tensor RNN/LSTM, as well as applications to visual question answering.
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