Méthode ensemble de clustering profond
Abstract
Several works have studied clustering strategies that combine classical clustering algorithms
and deep learning methods. These strategies generally improve clustering performance,
however deep autoencoder setting issues impede the robustness of these approaches. To alleviate
the impact of hyperparameters setting, we propose a model which combines spectral
clustering and deep autoencoder strengths in an ensemble framework. Our proposal does not
require any pretraining and includes the three following steps: generating various deep embeddings
from the original data, constructing a sparse and low-dimensional ensemble affinity
matrix based on anchors strategy and applying spectral clustering to obtain the common space
shared by multiple deep representations. While the anchors strategy ensures an efficient merging
of the encodings, the fusion of various deep representations enables to mitigate the deep
networks setting issues (Affeldt et al., 2020).