V i s i R e x     M e n u     I t e m s
Table Of Contents

Menu Items






Reports Menu

Select a Menu Item

Browse All Data Browse Test Data Confusion Matrix Live Predictions Field Statistics Class Details Tree Chart Flow Chart

Reports... Browse All Data
  • Browse through the entire database table used by this project.
  • Right click on the column headers for Sort and Find.

Reports... Browse Test Data

  • Only your test data set shows on this report.
  • Browse throught the data rows you have selected for test set.
  • Observe the actual versus predicted as you browse.

Reports... Confusion Matrix

  • Only your test data set contributes to this report.
  • This is a table showing every actual class and every predicted class.
  • The number of actual items and predicted items is tabulated by class.
  • The yellow diagonal indicates correct predictions.
  • Click on any cell to browse the data that occurs in that cell.

Reports... Live Predictions

  • Experiment with data values while observing the effect on the prediction.
  • Only fields selected for inputs in Field Selection show on this screen.
  • Fields that were not important enough to show up on the current tree are show as grayed.

Reports... Field Statistics
  • View a statistical report for all fields in your entire database table.
  • These statistics are collected only once during creation of a new project.
  • These statistics are saved in your project.vrp file.

Reports... Class Details

  • This screen shows all of the different classes that occur in any one field.
  • Text fields that contain more than 256 different values are not useable by VisiRex.
  • You have the option to treat numeric values as classes if the field contains less than 256 different numeric values.

Reports... Tree Chart
  • The tree chart is one way to visually inspect the extracted rules.
  • This view works best for very large trees having more than 200 to 300 nodes.
  • Double click on any row of the tree chart and you will be delivered to a data browse showing all data passing through that node.

Reports... Flow Chart

  • The flow chart is the best way to visually inspect the extracted rules for smaller trees.
  • The flow chart may be color-coded to indictate data volume, prediction confidence, or most likely class.
  • Double click on any node of the flow chart and you will be delivered to a data browse showing all data passing through that node.
  • The flow chart view is not available when the tree width becomes excessive (approxmately 200 to 300 nodes). If you prune a large tree down to smaller size, you may return to flow chart view.

A Complete System for Inductive Rule Extraction

CorMac Technologies Inc.
34 North Cumberland Street ~ Thunder Bay ON P7A 4L3 ~ Canada
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