Some previous works ( Bannard and Callison-Burch , 2005 ; Zhao et al. , 2009 ; Kouylekov et al. , 2009 ) indicate , as main limitations of the mentioned resources , their limited coverage , their low precision , and the fact that they are mostly suitable to capture relations mainly between single words .
paraphrasing with bilingual parallel corpora
Colin Bannard Chris Callison-Burch
As emerges from the ablation tests reported in ( Bentivogli et al. , 2010 ) , even the most common resources proved to have a positive impact on some systems and a negative impact on others . Some previous works ( Bannard and Callison-Burch , 2005 ; Zhao et al. , 2009 ; Kouylekov et al. , 2009 ) indicate , as main limitations of the mentioned resources , their limited coverage , their low precision , and the fact that they are mostly suitable to capture relations mainly between single words . Addressing CLTE we have to face additional and more problematic issues related to : i ) the stronger need of lexical knowledge , and ii ) the limited availability of multilingual lexical resources .
Some previous works ( @@CITATION ; Zhao et al. , 2009 ; Kouylekov et al. , 2009 ) indicate , as main limitations of the mentioned resources , their limited coverage , their low precision , and the fact that they are mostly suitable to capture relations mainly between single words .