Defining textual entailment

Textual Entailment

Textual Entailment

The task of Recognizing Textual Entailment (RTE) requires automated systems to identify when two spans of text share a common meaning -for example, that ``Alphaville Inc.'s attempted acquisition of Bauhaus led to a jump in both companies' stock prices'' entails ``Bauahaus' stock rose'', but not ``Alphaville acquired Bauhaus''. This general capability would be a solid proxy for Natural Language ...

Discovering Entailment Relations Using "Textual Entailment Patterns"

In this work we investigate methods to enable the detection of a specific type of textual entailment (strict entailment), starting from the preliminary assumption that these relations are often clearly expressed in texts. Our method is a statistical approach based on what we call textual entailment patterns, prototypical sentences hiding entailment relations among two activities. We experimente...

Dependency-based Textual Entailment

This paper studies the role of dependency information for the task of textual entailment. Both the Text and Hypothesis of an entailment pair are mapped into sets of dependencies and a score is computed that measures the similarity of the two sets. Based on the score an entailment decision is made. Two experiments are conducted to measure the impact of dependencies on the entailment task. In one...

Recognizing Textual Entailment

Since 2005, researchers have worked on a broad task called Recognizing Textual Entailment (RTE), which is designed to focus efforts on general textual inference capabilities, but without constraining participants to use a specific representation or reasoning approach. There have been promising developments in this sub-field of Natural Language Processing (NLP), with systems showing steady impro...