1. Arthur, D., Vassilvitskii, S.: k-means++: the advantages of careful seeding. In: Gabow, H. (Ed.) Proceedings of the 18th Annual ACM-SIAM Symposium on Discrete Algorithms [SODA07], pp. 1027–1035. Society for Industrial and Applied Mathematics (2007)
2. Bagirov, A., Seifollahi, S., Piccardi, M., Zare, E., Kruger, B.: SMGKM: an efficient incremental algorithm for clustering document collections. CICLing 2018 (2018)
3. Brock, G., Pihur, V., Datta, S., Datta, S.: clValid: an R package for cluster validation. J. Stat. Softw. 25, 1–22 (2008)
4. Y. Cheng. Ontology-based fuzzy semantic clustering. In Proceedings – 3rd International Conference on Convergence and Hybrid Information Technology, ICCIT 2008, vol. 2, pp. 128–133 (2008)
5. Das, R., Zaheer, M., Dyer, C.: Gaussian LDA for topic models with word embeddings. In: Proceedings ACL 2015, pp. 795–804 (2015)