Synonym search allows finding series with metadata fields containing values with a similar meaning in the original or other languages.
For example, a user searching for series with
currency keyword might be interested in locating series with keywords
cash as well as
geld (German) and
The synonyms can be created for all metadata fields.
The list of synonyms can be specified in the
conf/synonym.conf file accessible on the Settings > Configuration Files page.
The synonyms for a keyword are defined with the assign
=> operator. Searching by keyword or by one of its synonyms produces the same results.
keyword => synonym[, synonym]
Multiple synonyms can be specified on one line, separated by a comma.
Synonyms are disabled when the keyword is specified as field name. The following searches yield different results:
- The word
moneyhas one synonym.
money => currency location => place, site
money keyword matches series containing either the keyword itself or its alias (
The same results are displayed if the
currency keyword is searched as well.
- The word
locationhas four synonyms.
location => place, site, Ort, место
location matches the below series since it has an entity tag
Likewise, searching for
ort matches the same series since
ort is a synonym of
location, which is one of the entity tags.
student_count -- metric nyu.edu -- entity location = NYC -- entity tag school = CAS -- series tag
place:NYC searches produce different results because synonyms are not supported in field names and therefore
place as a field name is not enabled as a synonym for the
location field name. As a result,
place:NYC does not match the above series.
conf/synonym.conf file is updated, the search index must be refreshed by an administrator on the Settings > Diagnostics > Search Index page.