Technical GlossaryNatural Language Processing
Hierarchical Text Classification
A classification problem in which labels are organized in a parent-child hierarchy rather than a flat list.
Hierarchical text classification is important especially in large document taxonomies and enterprise category trees. A text may first be routed to a broad parent class and then to a more specific child label. This makes both error analysis and decision support more meaningful. However, label dependencies and multi-level training strategies require more complex design than flat classification.
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