Word forms options give you control over how many variations
of your query terms will be sought in your search.
Custom Suffix List,
Custom Suffix Default Removal, and
Custom Suffix Min Lengthsettings to create your own custom behavior.
|PLURAL||(above) + presidents president's|
|ANY||(above) + presidential presidency preside presides presiding presided|
|PLURAL||(above) + tights|
|ANY||(above) + tightly tightening tightened tighter tightest|
|PLURAL||(above) + programs program's|
|ANY||(above) + programming programmatic programmed programmer programmable|
We call this morpheme processing, and it is generally smarter than a traditional "stemming" algorithm. It doesn't just rip the end off a word, it actually checks to see if it could be a valid form of the search term. More information is available at http://docs.thunderstone.com/site/texisman/adjusting_linguistic_controls.html .
Notes: Thesaurus terms are also treated in the same manner. Words smaller than 4-5 characters will not be morpheme processed.