Deep Unsupervised Clustering Using Mixture of Autoencoders
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Deep Unsupervised Clustering Using Mixture of Autoencoders
Unsupervised clustering is one of the most fundamental challenges in machine learning. A popular hypothesis is that data are generated from a union of lowdimensional nonlinear manifolds; thus an approach to clustering is identifying and separating these manifolds. In this paper, we present a novel approach to solve this problem by using a mixture of autoencoders. Our model consists of two parts: 1) a collection of autoencoders where each autoencoder learns the underlying manifold of a group of similar objects, and 2) a mixture assignment neural network, which takes the concatenated latent vectors from the autoencoders as input and infers the distribution over clusters. By jointly optimizing the two parts, we simultaneously assign data to clusters and learn the underlying manifolds of each cluster.
Deep Unsupervised Clustering Using Mixture of Autoencoders
by Dejiao Zhang, Yifan Sun, Brian Eriksson, Laura Balzano
https://arxiv.org/pdf/1712.07788v2.pdf
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