Paper: A Feature-Rich Constituent Context Model for Grammar Induction

ACL ID P12-2004
Title A Feature-Rich Constituent Context Model for Grammar Induction
Venue Annual Meeting of the Association of Computational Linguistics
Session Short Paper
Year 2012
Authors

We present LLCCM, a log-linear variant of the constituent context model (CCM) of grammar induction. LLCCM retains the simplicity of the original CCM but extends robustly to long sentences. On sentences of up to length 40, LLCCM outperforms CCM by 13.9% brack- eting F1 and outperforms a right-branching baseline in regimes where CCM does not.