A deep super-vector based representation for clustering

Deep learning is a powerful method that has achieved huge success in numerous supervised applications. Nonetheless, the performance of deep learning in unsupervised learning has been far from being explored. Inspired by this observation, we proposed a deep autoencoder based representation learning for clustering. For this purpose, we devised a stacked autoencoder without the fine-tuning step and concatenated all layers' representations together to make a super vector that is a more powerful representation for clustering. We use k-means as our clustering algorithm and compare its results with the k-means clustering results on original representations. Our method was evaluated on six datasets and the results are promising.