Enrichments (draft)

Standard Enrichments

Name	Type	Description	Typical fields used	ingestion3	Ruby module (Krikri)
Create prefLabel from providedLabel	RDF	Copy the value from a provided label to the preferred label of a property when no preferred label exists.	All		create_pref_label_from_provided.rb
DCMIType Map	RDF	Match string values within the type properties to DCMIType terms and add matching term URI. Remove non-DCMIType values and move to format or genre.	Type, Genre, Format		dcmi_enforcer.rb dcmi_type_map.rb move_non_dcmi_type.rb
De-Duplicate	Normalization	Look for identically matching values within instances of a property and remove the duplicate property.	All		dedup_nodes.rb
Genre matching	Normalization	Match string values to a controlled list of values for genre.	Genre, Format, Type		genre_filter.rb move_non_dcmi_type.rb
Language Normalization	Normalization	Match a string to corresponding ISO 639-3 code and add that value and the URI for the language to record. Alternately, match a three-character string to a corresponding language in the ISO 639-3 vocabulary. Add the name string and the URI for the language to the record.	Language		language_to_lexvo.rb
Parse Date	Normalization	Parse information in date fields and normalize to EDTF format. When a single date is present, split it into begin and end dates for the Temporal Class. When only a begin and end date is present, create a date range label.	Date, Timespan		parse_date.rb timespan_split.rb timespan_label.rb
Remove Empty Fields	Normalization	Looks for and removes any existing property with no value.	All		remove_empty_fields.rb
Geocoding	Normalization	Search GeoNames vocabulary for matches to string values in spatial fields. Build out the rest of the spatial class properties based on the GeoNames data.	Spatial	Yes
Split at Delimiter	String	Split values at a particular delimiter (usually semicolon) and put each resulting value in its own property instance	All	Yes	split_at_delimiter.rb split_provided_label_at_delimiter.rb
Strip Ending Punctuation	String	Remove ending punctuation from property values including quotation marks, colons, semicolons, and dashes, but excluding brackets and parentheses. Periods are typically removed except when the final word is a two character string (such as “Jr.”) or two characters separated by periods (“P.A.”).	Title, Creator, Contributor, Publisher, Subject, Format, Genre	Yes	strip_ending_punctuation.rb
Strip HTML	String	Looks for and removes any HTML code from a property value.	All	Yes	strip_html.rb
Strip Leading Colons	String	Remove initial character from a value if it is a colon.	Title	Yes	strip_leading_colons.rb
Strip Leading Punctuation	String	Remove initial punctuation from property values including quotation marks, colons, semicolons, and dashes, but excluding brackets and parentheses.	Creator, Contributor, Publisher, Subject, Format, Genre	Yes	strip_leading_punctuation.rb
Strip Whitespace	String	Look for multiple whitepaces within a value and reduce to a single whitespace.	All	Yes	strip_whitespace.rb
Web Resource URIs	Normalization	Remove Web Resources that are not http URIs.	isShownAt, Preview, Object		web_resource_uri.rb

Specialized Enrichments

Name	Type	Description	Typical fields used	ingestion3	Ruby module	Hubs
Convert to Sentence Case	String	Convert a string in all caps to sentence case.	Title	Yes	convert_to_sentence_case.rb
Dates in Coverage fields		Parse coverage properties in original records for values that are dates and move to timespan property.	Spatial
Genre from MARC leader		Match specific codes in the MARC leader for a record to a controlled list of values for genre	Genre			HathiTrust, University of Florida, GPO
Limit Characters	String	Limit the value of a property to a specified number of chracters	Description	Yes	limit_characters.rb	University of Washington, Minnesota Digital Library
Remove Placeholder Values		Remove a given placeholder value such as "XYZ"	Subject		remove_placeholder.rb	University of Washington
Separate Coordinates		Split sets of geospatial coordinates in original record properties into appropriate latitude and longitude properties.	Spatial	N/A – Twofishes does not require this enrichment	split_coordinates.rb	Tennessee Digital Library, Minnesota Digital Library