Accurate unlexicalized parsing
ACL '03 Proceedings of the 41st Annual Meeting on Association for Computational Linguistics - Volume 1
Learning to recognize features of valid textual entailments
HLT-NAACL '06 Proceedings of the main conference on Human Language Technology Conference of the North American Chapter of the Association of Computational Linguistics
Classification of semantic relations by humans and machines
EMSEE '05 Proceedings of the ACL Workshop on Empirical Modeling of Semantic Equivalence and Entailment
RTE '07 Proceedings of the ACL-PASCAL Workshop on Textual Entailment and Paraphrasing
Natural logic for textual inference
RTE '07 Proceedings of the ACL-PASCAL Workshop on Textual Entailment and Paraphrasing
Using scenario knowledge in automatic question answering
SumQA '06 Proceedings of the Workshop on Task-Focused Summarization and Question Answering
Using natural language to represent knowledge in an intelligent tutoring system
Proceedings of the fifth international conference on Knowledge capture
Without a 'doubt'?: unsupervised discovery of downward-entailing operators
NAACL '09 Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics
Textual entailment features for machine translation evaluation
StatMT '09 Proceedings of the Fourth Workshop on Statistical Machine Translation
Assessing the impact of frame semantics on textual entailment
Natural Language Engineering
Robust machine translation evaluation with entailment features
ACL '09 Proceedings of the Joint Conference of the 47th Annual Meeting of the ACL and the 4th International Joint Conference on Natural Language Processing of the AFNLP: Volume 1 - Volume 1
An extended model of natural logic
IWCS-8 '09 Proceedings of the Eighth International Conference on Computational Semantics
Presupposed content and entailments in natural language inference
TextInfer '09 Proceedings of the 2009 Workshop on Applied Textual Inference
Tree edit models for recognizing textual entailments, paraphrases, and answers to questions
HLT '10 Human Language Technologies: The 2010 Annual Conference of the North American Chapter of the Association for Computational Linguistics
ACL '10 Proceedings of the 48th Annual Meeting of the Association for Computational Linguistics
Don't 'have a clue'?: unsupervised co-learning of downward-entailing operators
ACLShort '10 Proceedings of the ACL 2010 Conference Short Papers
Constraints based taxonomic relation classification
EMNLP '10 Proceedings of the 2010 Conference on Empirical Methods in Natural Language Processing
Statement map: reducing web information credibility noise through opinion classification
AND '10 Proceedings of the fourth workshop on Analytics for noisy unstructured text data
Automatic analysis of semantic similarity in comparable text through syntactic tree matching
COLING '10 Proceedings of the 23rd International Conference on Computational Linguistics
COLING '10 Proceedings of the 23rd International Conference on Computational Linguistics
Automatic patient search for breast cancer clinical trials using free-text medical reports
Proceedings of the 1st ACM International Health Informatics Symposium
Defining specialized entailment engines using natural logic relations
LTC'09 Proceedings of the 4th conference on Human language technology: challenges for computer science and linguistics
Unsupervised entailment detection between dependency graph fragments
BioNLP '11 Proceedings of BioNLP 2011 Workshop
On the automatic generation of intermediate logic forms for wordnet glosses
CICLing'10 Proceedings of the 11th international conference on Computational Linguistics and Intelligent Text Processing
Unsupervised detection of downward-entailing operators by maximizing classification certainty
EACL '12 Proceedings of the 13th Conference of the European Chapter of the Association for Computational Linguistics
Leveraging Diverse Lexical Resources for Textual Entailment Recognition
ACM Transactions on Asian Language Information Processing (TALIP) - Special Issue on RITE
Inclusion and Exclusion in Natural Language
Studia Logica
ACL '12 Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics: Long Papers - Volume 1
Composition of semantic relations: Theoretical framework and case study
ACM Transactions on Speech and Language Processing (TSLP)
An introduction to string re-writing kernel
IJCAI'13 Proceedings of the Twenty-Third international joint conference on Artificial Intelligence
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We propose an approach to natural language inference based on a model of natural logic, which identifies valid inferences by their lexical and syntactic features, without full semantic interpretation. We greatly extend past work in natural logic, which has focused solely on semantic containment and monotonicity, to incorporate both semantic exclusion and implicativity. Our system decomposes an inference problem into a sequence of atomic edits linking premise to hypothesis; predicts a lexical entailment relation for each edit using a statistical classifier; propagates these relations upward through a syntax tree according to semantic properties of intermediate nodes; and composes the resulting entailment relations across the edit sequence. We evaluate our system on the FraCaS test suite, and achieve a 27% reduction in error from previous work. We also show that hybridizing an existing RTE system with our natural logic system yields significant gains on the RTE3 test suite.