K-MEANS

Parameters

values

Definition

Kernel Type

0. LINEAR

linear: u'*v

1. POLYNOMIAL

polynomial: (gamma*u'*v + coef0)^degree

2. RBF

radial basis function: exp(-gamma*|u-v|^2)

This kernel nonlinearly maps samples into a higher dimensional space so it, unlike the linear kernel, can handle the case when the relation between className labels and attributes is nonlinear.

3. SIGMOID

sigmoid: tanh(gamma*u'*v + coef0)

Gamma

gamma defines how much influence a single training example has. The larger gamma is, the closer other examples must be to be affected.

Coef0

Degree of the polynomial kernel function. Ignored by all other kernels.

Degree

Independent term in kernel function. It is only significant in 'polynomial' and 'sigmoid'.

Dimension (Number of Attributes)

Number of input attributes / columns in the training data set

Number of Centers

Number of clusters

Stopping Criteria

Tolerance for stopping criterion. The stopping tolerance affects the number of iterations used when optimizing the model.

Number of Rows

Total number of records / rows in the training data