Almost Flat Functional Semantics for Speech Translation

We introduce a novel semantic representation formalism, Almost Flat Functional semantics (AFF), which is designed as an intelligent compromise between linguistically motivated predicate/argument semantics and ad hoc engineering solutions based on flat feature/value lists; the central idea is to tag each semantic element with the functional marking which most closely surrounds it. We argue that AFF is well-suited for medium-vocabulary speech translation applications, and describe simple and general algorithms for parsing, generating and performing transfer using AFF representations. The formalism has been fully implemented within a mediumvocabulary interlingua-based Open Source speech translation system which translates between English, French, Japanese and Arabic.

• Type: Conference
• Year: 2008
• Where: COLING
• Authors: Manny Rayner, Pierrette Bouillon, Beth Ann Hockey, Yukie Nakao
• Keywords: COLING 2008, Computational Linguistics, Flat Functional Semantics, Semantic Representation Formalism, Speech Translation