Clustering of Short Texts by Mixture of Unigrams and Its Deep Extensions
Bubble plot
Deep Mixture of Unigrams
Dirichlet-Multinomial mixture model by Gradient Descend algorithm
Heatmap of word frequencies by cluster
Mixture of Unigrams by Expectation-Maximization algorithm
Plotting method for "shallow" and deep mixtures of Unigrams and mixtur...
Graph of most frequent words of each cluster
Functions providing an easy and intuitive way for fitting and clusters data using the Mixture of Unigrams models by means the Expectation-Maximization algorithm (Nigam, K. et al. (2000). <doi:10.1023/A:1007692713085>), Mixture of Dirichlet-Multinomials estimated by Gradient Descent (Anderlucci, Viroli (2020) <doi:10.1007/s11634-020-00399-3>) and Deep Mixture of Multinomials whose estimates are obtained with Gibbs sampling scheme (Viroli, Anderlucci (2020) <doi:10.1007/s11222-020-09989-9>). There are also functions for graphical representation of clusters obtained.