modules.clustering.SIDIWO.sidiwo

MAP_assign_clusters_stm

MAP_assign_clusters_stm(X, M, omega)

Assign documents in a corpus X to the most likely topic, via MAP assignment @param M: the conditional expectations matrix @param omega: the mixing weights @param X: a bag-of-words documents distributed as a Single Topic Model, with n rows an d columns; at position (i,j) we have the number of times the word j appeared in doc. i,

SIDIWO_lowrank_single_topic_model

SIDIWO_lowrank_single_topic_model(X)

Implements SIDIWO for the single topic model using l=2 @param X: a bag-of-words documents distributed as a Single Topic Model, with n rows an d columns; at position (i,j) we have the number of times the word j appeared in doc. i,

asvtd

asvtd(X, k)

Learn an approximate pair M, omega @param X: the dataset @param k: the number of clusters

create_cluster_graph_single_topic_model

create_cluster_graph_single_topic_model(X, depth, CL_input, Y=None)

Recursive implementation of Algorithm 2, to find a divisive binary tree by splitting a corpus into two parts. @param X: a bag-of-words documents distributed as a Single Topic Model, with n rows an d columns; at position (i,j) we have the number of times the word j appeared in doc. i, @param depth: the current depth of the tree; depth =1 means that we are at a leaf depth >1 the algorithm perform a splits and calls himself with depth=depth-1 @param CL_input: a list of lists containing the binary tree. Each entry is a node, containing: the depth of the node and the binary tree behind him @param Y: the list of samples contained in the current node, to be splitted at this iteration.