Empirical evidence has been brought forward that inflectional and/or derivational stemmers augmented by dictionaries indeed perform substantially better than those without access to such lexical repositories ( Krovetz , 1993 ; Kraaij and Pohlmann , 1996 ; Tzoukermann et al. , 1997 ) .
viewing stemming as recall enhancement
W Kraaij R Pohlmann
The key for quality improvement seems to be rooted mainly in the presence or absence of some form of dictionary . Empirical evidence has been brought forward that inflectional and/or derivational stemmers augmented by dictionaries indeed perform substantially better than those without access to such lexical repositories ( Krovetz , 1993 ; Kraaij and Pohlmann , 1996 ; Tzoukermann et al. , 1997 ) . This result is particularly valid for natural languages with a rich morphology -- both in terms of derivation and ( single-word ) composition .
Empirical evidence has been brought forward that inflectional and/or derivational stemmers augmented by dictionaries indeed perform substantially better than those without access to such lexical repositories ( Krovetz , 1993 ; @@CITATION ; Tzoukermann et al. , 1997 ) .