DFKI-LT - Entailment Graphs for Text Analytics in the Excitement Project

Bernardo Magnini, Ido Dagan, GŁnter Neumann, Sebastian Pado
Entailment Graphs for Text Analytics in the Excitement Project
1 17th International Conference on Text, Speech and Dialogue volume 8655,
Lecture Notes in Computer Science, Pages 11-18, Brno, Czech Republic, Springer, 9/2014

In the last years, a relevant research line in Natural Language Processing has focused on detecting semantic relations among portions of text, including entailment, similarity, temporal relations, and, with a less degree, causality. The attention on such semantic relations has raised the demand to move towards more informative meaning representations, which express properties of concepts and relations among them. This demand triggered research on "statement entailment graphs", where nodes are natural language statements (propositions), comprising of predicates with their arguments and modifiers, while edges represent entailment relations between nodes. We report initial research that defines the properties of entailment graphs and their potential applications. Particularly, we show how entailment graphs are profitably used in the context of the European project EXCITEMENT,where they are applied for the analysis of customer interactions across multiple channels, including speech, email, chat and social media, and multiple languages (English, German, Italian).
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