Approximate inference for domain detection in spoken language understanding
Aslı Çelikyılmaz, Dilek Zeynep Hakkani-Tür, Gökhan Tür · 2011
This paper presents a semi-latent topic model for semantic domain detection in spoken language understanding systems. We use labeled utterance information to capture latent topics, which directly correspond to semantic domains. Additionally, we introduce an ’informative prior ’ for Bayesian inference that can simultaneously segment utterances of known domains into classes and divide them from out-of-domain utterances. We show that our model generalizes well on the task of classify-ing spoken language utterances and compare its results to those of an unsupervised topic model, which does not use labeled in-formation. Index Terms: spoken language understanding, generative mod-els, gibbs sampling.