Iddo Greental

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Semantic inference is an important component in many natural language understanding applications. Classical approaches to semantic inference rely on complex logical representations. However, practical applications usually adopt shallower lexical or lexical-syntactic representations , but lack a principled inference framework. We propose a generic semantic(More)
We present a new framework for textual en-tailment, which provides a modular integration between knowledge-based exact inference and cost-based approximate matching. Diverse types of knowledge are uniformly represented as entailment rules, which were acquired both manually and automatically. Our proof system operates directly on parse trees, and infers new(More)
Semantic inference is often modeled as application of entailment rules, which specify generation of entailed sentences from a source sentence. Efficient generation and representation of entailed consequents is a fundamental problem common to such inference methods. We present a new data structure, termed compact forest, which allows efficient generation and(More)
Semantic inference is an important component in many natural language understanding applications. Classical approaches to semantic inference rely on logical representations for meaning, which may be viewed as being " external " to the natural language itself. However, practical applications usually adopt shallower lexical or lexical-syntactic(More)
  • Galit W Sassoon, Ido Ben Tzvi, Uriel Cohen Priva, Aynat Rubinstein, Tal Keidar, Meira Marom +19 others
  • 2012
Are complex predicates—in particular, negated (e.g., not expensive), conjunctive (e.g., expensive and time consuming) and disjunctive predicates (e.g., tall or bald)—associated with a graded structure, namely a mapping of entities to degrees? On the one hand, most up to date semantic theories of gradability and comparison in natural language disregard this(More)
ii Acknowledgements Many people have helped making the period of my Ph.D. studies successful and enjoyable and here I wish to express my gratitude to them. First and foremost, I would like to thank my advisor, Prof. Ido Dagan for his guidance and support during my graduate studies. Ido has been a role model and a source of inspiration in matters way beyond(More)
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