Algorithm for the two-Phase analysis

The overall analysis of gallup forms is made in two phases: first data is divided into categories, which are analysed separately; and secondly, the observed semantic groups are combined into a single concluding profile of the answers, as follows.

1.1

Categorize and preprocess data fields to create training data

1.2

Train a SOM for each category and locate interesting groups

2.1

Collect groupings to a new training data set

2.2

Train a concluding SOM

2.3

Obtain conclusions and estimate the number of misclassifications