6 For Sent-Pred we also experimented with grammatical and sentence-based syntactic features , such as number of syntactic phrases , grammatical mood , and grammatical person ( Marom and Zukerman 2006 ) , but the simple binary bag-of-lemmas representation yielded similar results .
automating helpdesk responses a comparative study of informationgathering approaches
Y Marom I Zukerman
During the 6 For Sent-Pred we also experimented with grammatical and sentence-based syntactic features , such as number of syntactic phrases , grammatical mood , and grammatical person ( Marom and Zukerman 2006 ) , but the simple binary bag-of-lemmas representation yielded similar results . 7 We employed the LIBSVM package ( Chang and Lin 2001 ) .
6 For Sent-Pred we also experimented with grammatical and sentence-based syntactic features , such as number of syntactic phrases , grammatical mood , and grammatical person ( @@CITATION ) , but the simple binary bag-of-lemmas representation yielded similar results .