On the use of finite state transducers for semantic interpretation q

Christian Raymond (1) , Frédéric Béchet (1) , Renato de Mori (1) , Géraldine Damnati (2)

1 LIA - Laboratoire Informatique d'Avignon
2 Orange Labs [Lannion]

A spoken language understanding (SLU) system is described. It generates hypotheses of conceptual constituents with a translation process. This process is performed by finite state transducers (FST) which accept word patterns from a lattice of word hypotheses generated by an Automatic Speech Recognition (ASR) system. FSTs operate in parallel and may share word hypotheses at their input. Semantic hypotheses are obtained by composition of compatible translations under the control of composition rules. Interpretation hypotheses are scored by the sum of the posterior probabilities of paths in the lattice of word hypotheses supporting the interpretation. A compact structured n-best list of interpretation is obtained and used by the SLU interpretation strategy.

Mots clés: Automatic speech recognition; Spoken language understanding; Dialogue; Finite state transducers

Domaines: Informatique [cs]

Christian Raymond, Frédéric Béchet, Renato de Mori, Géraldine Damnati. On the use of finite state transducers for semantic interpretation q. Speech Communication, 2006, ⟨10.1016/j.specom.2005.06.012⟩. ⟨hal-01314627⟩