Propagated not-flag – Kofax Getting Started with Ascent Xtrata Pro User Manual

Page 88

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Classification

Ascent Xtrata Pro User's Guide

69

Propagated Not-Flag

This rule is similar to the Local Not-Flag but the flag setting propagates to the child
classes. If instructions are found on a document and the sum of their relevancies are
less than -50 % (negative instructions), then the class is excluded from the
classification results and all child classes are also excluded. This means that it is
possible to disable the classification of an entire subtree by defining negative
instructions at the root of that branch.

Figure 3-8. Classification Rule – Propagated Not Flag

The above figure shows an example for this rule. A negative instruction for Politik
has disabled the entire hierarchy below this class. Even though Energiepolitik (which
is a child of Politik) has the highest content classification confidence, it cannot be the
final classification result, due to this rule.

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