Dialogical Argumentation and 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 ...

Probabilistic Strategies in Dialogical Argumentation

In dialogical argumentation, a participant is often unsure what moves the other participant(s) might make. If the dialogue is proceeding according to some accepted protocol, then a participant might be able to determine what are the possible moves that the other might make, but the participant might be unsure as to which move will be chosen by the other agent. In this paper, propositional execu...

Executable Logic for Dialogical Argumentation

Argumentation between agents through dialogue is an important cognitive activity. There have been a number of proposals for formalizing dialogical argumentation. However, each proposal involves a number of quite complex definitions, and there is significant diversity in the way different proposals define similar features. This complexity and diversity has hindered analysis and comparison of the...

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...