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# Taxonomy Configuration

The `[Taxonomy]` section of the configuration file offers a number of parameters to control the generation of taxonomies.

Parameter | Description
--- | ---
`MaxQNum` | The maximum number of documents used to generate a taxonomy. This overrides the value set (if any) in the `DREQuery` parameter of the `TaxonomyGenerate` command. The default is 5000.
`MaxConcepts` | The maximum number of terms that the trained category used for taxonomy generation can have. The default is 100.
`ConceptThreshold` | The minimum weight that a term must have to appear in the trained category, and therefore the taxonomy. The default is 0.
`MinConceptOccs` | The minimum number of times a term must appear in the training documents to be included in the trained category. The default is 10.
`OnlyMatchSubset` | Whether to use the entire index for the purposes of statistics calculation when determining term distribution. A value of 1 means use only the documents in the defined subset, 0 the entire index. The default is 1.
`MinChildren` | The minimum number of children a term must have for it to appear in the taxonomy. This value translates to the minimum number of child categories a category must have. Any categories that do not meet this constraint are redistributed across the taxonomy, and added as a child categories to other categories, if suitable parents exist. The default is 0.
`CompoundRelevance` | The minimum percentage relevance two terms must have for them to be combined into one. The default is 40.
`SiblingStrength` | The minimum percentage relevance that the parent terms of two terms must have for them to be combined into one. The default is 20.
`RelevanceThreshold` | The minimum percentage relevance term X must have to term Y for X to be the parent of Y. The default is 20.
`DistributionThreshold` | The minimum percentage relevance term Y must have to term X for X to be the parent of Y. It must have a smaller value than `RelevanceThreshold`. The default is 5.

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