However , most strategies are based on `` internal '' or `` external methods '' ( Grabar and Zweigenbaum , 2002 ) , i.e. methods that rely on the form of terms or on the information gathered from contexts .
lexicallybased terminology structuring some inherent limits
Natalia Grabar Pierre Zweigenbaum
Different strategies have been developed in order to identify pairs of terms that share a specific semantic relationship ( such as hyperonymy or meronymy ) or to build classes of terms . However , most strategies are based on `` internal '' or `` external methods '' ( Grabar and Zweigenbaum , 2002 ) , i.e. methods that rely on the form of terms or on the information gathered from contexts . ( In some cases , an additional resource , such as a dictionary or a thesaurus , is used during the identification process . )
However , most strategies are based on `` internal '' or `` external methods '' ( @@CITATION ) , i.e. methods that rely on the form of terms or on the information gathered from contexts .