DFKI-LT - Recognizing Textual Entailment Using Sentence Similarity based on Dependency Tree Skeletons

Rui Wang, GŁnter Neumann
Recognizing Textual Entailment Using Sentence Similarity based on Dependency Tree Skeletons
2 In Proceedings of the RTE-3 challenge workshop, Association for Computational Linguistics., ACL, 2007
 
We present a novel approach to RTE that exploits a structure-oriented sentence representation followed by a similarity function. The structural features are automatically acquired from tree skeletons that are extracted and generalized from dependency trees. Our method makes use of a limited size of training data without any external knowledge bases (e.g. WordNet) or handcrafted inference rules. We have achieved an accuracy of 71.1% on the RTE-3 development set performing a 10-fold cross validation and 66.9% on the RTE-3 test data.
 
Files: BibTeX, RTE-3-final.pdf