... Association for Computational Linguistics:shortpapers, pages 558–563,Portland, Oregon, June 19-24, 2011.c2011 Association for Computational LinguisticsA Probabilistic Modeling Framework for Lexical ... (e.g.parsing) aiming at high performance.Nevertheless, simple entailment methods, per-forming at the lexical level, provide strong baselineswhich most systems did not outperform (Mirkinet al., 2009; ... parameters while the RTE-training entailment annotation is given for thesentence-level. Therefore, we use EM-based esti-mation for the hidden parameters (Dempster et al.,1977). In the E step...