Visualizing Layer Representations in Neural Networks

Visualizing and interpreting representations learned by machine learning / deep learning algorithms is pretty interesting! As the saying goes -- "A picture is worth a thousand words", the same holds true with visualizations. A lot can be interpreted using the correct tools for visualization. In this post, I will cover some details on visualizing intermediate (hidden) layer features using dimension reduction techniques. We will work with the IMDB sentiment classification task (25000 training and 25000 test examples).