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Topic Modeling for Speech and Language Processing

  • Jen-Tzung Chien
Chapter
Part of the SpringerBriefs in Statistics book series (BRIEFSSTATIST)

Abstract

In this chapter, we present state-of-art machine learning approaches for speech and language processing with highlight on topic models for structural learning and temporal modeling from unlabeled sequential patterns. In general, speech and language processing involves extensive knowledge of statistical models. We require designing a flexible, scalable, and robust system to meet heterogeneous and nonstationary environments in the era of big data. This chapter starts from an introduction of unsupervised speech and language processing based on factor analysis and independent component analysis. Unsupervised learning is then generalized to a latent variable model which is known as the topic model. The evolution of topic models from latent semantic analysis to hierarchical Dirichlet process, from non-Bayesian parametric models to Bayesian nonparametric models, and from single-layer model to hierarchical tree model is investigated in an organized fashion. The inference approaches based on variational Bayesian and Gibbs sampling are introduced. We present several case studies on topic modeling for speech and language applications including language model, document model, segmentation model, and summarization model.

Keywords

Markov Chain Monte Carlo Independent Component Analysis Topic Model Latent Dirichlet Allocation Latent Semantic Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© The Author(s) 2015

Authors and Affiliations

  1. 1.Department of Electrical and Computer EngineeringNational Chiao Tung UniversityHsinchuTaiwan

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