참고
[1] A Similarity-Based Hierarchical Clustering Method for Manufacturing Process Models
[2] https://scikit-learn.org/stable/auto_examples/cluster/plot_cluster_comparison.html#sphx-glr-auto-examples-cluster-plot-cluster-comparison-py
[3] Diederik P Kingma, Max Welling, Auto-Encoding Variational Bayes https://arxiv.org/abs/1312.6114
[4] Jiang, Z., Zheng, Y., Tan, H., Tang, B., and Zhou, H, Variational deep embedding: An unsupervised and generative approach to clustering. In IJCAI, 2017
[5] VaDE : https://github.com/slim1017/VaDE
[6] https://studying-haeung.tistory.com/10