About Library Dictionaries

The resources used to extract text data are stored in the form of templates and libraries. A library can be made up of three dictionaries.

• The type dictionary contains a collection of terms grouped under one label, or type name. When the extraction engine reads your text data, it compares the words found in the text to the terms defined in your type dictionaries. During extraction, inflected forms of a type's terms and synonyms are grouped under a target term called concept. Extracted concepts are assigned to the type dictionary in which they appear as terms. You can manage your type dictionaries in the upper left and center panes of the editor—the library tree and the term pane. See the topic Type dictionaries for more information.

• The substitution dictionary contains a collection of words defined as synonyms or as optional elements used to group similar terms under one target term, called a concept in the final extraction results. You can manage your substitution dictionaries in the lower left pane of the editor using the Synonyms tab and the Optional tab. See the topic Substitution/Synonym dictionaries for more information.
• The exclude dictionary contains a collection of terms and types that will be removed from the final extraction results. You can manage your exclude dictionaries in the rightmost pane of the editor. See the topic Exclude dictionaries for more information.

See the topic Working with Libraries for more information.