Field Name

Default

Description

Select Dataset



Select the dataset.

Euclidean kmeans

●

Check to use the euclidean kmeans clustering algorithm.

Spherical kmeans



Check to use the spherical kmeans clustering algorithm.

PDDP



Check to use the PDDP clustering algorithm.

Initialize Centroids

At random

Defines the method used for the initialization of the centroid vector in the course of kmeans. Possibilities are: initialize at random and supplly a variable of '.mat' file with the centroids matrix.

Termination Criterion

Epsilon (1)

Defines the termination criterion used in the course of kmeans. Possibilities are: use an epsilon value (default 1) and stop iteration when the objective function improvement does not exceed epsilon or perform a specific number of iterations (default 10).

Principal Directions

1

Number of principal directions used in PDDP.

Maximum num. of PCs



Check if the PDDP(maxl) variant is to be applied.

Variant

Basic

A set of PDDP variants. Possibe values: 'Basic', 'Split with kmeans', 'Optimat Split', 'Optimal Split with kmeans', 'Optimal Split on Projection'.

MATLAB (svds)

●

Check to use MATLAB function svds for the computation of the SVD in the course of PDDP.

Propack



Check to use PROPACK package for the computation of the SVD in the course of PDDP.

Number of Clusters



Number of clusters computed.

Display Results

●

Display results or not to the command windows.

Store Results

●

Check to store results.

Continue



Apply the selected operation.

Reset



Reset window to default values.

Exit



Exit window.
