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Speech Analysis in the Big Data Era

  • Björn W. SchullerEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9302)

Abstract

In spoken language analysis tasks, one is often faced with comparably small available corpora of only one up to a few hours of speech material mostly annotated with a single phenomenon such as a particular speaker state at a time. In stark contrast to this, engines such as for the recognition of speakers’ emotions, sentiment, personality, or pathologies, are often expected to run independent of the speaker, the spoken content, and the acoustic conditions. This lack of large and richly annotated material likely explains to a large degree the headroom left for improvement in accuracy by todays engines. Yet, in the big data era, and with the increasing availability of crowd-sourcing services, and recent advances in weakly supervised learning, new opportunities arise to ease this fact. In this light, this contribution first shows the de-facto standard in terms of data-availability in a broad range of speaker analysis tasks. It then introduces highly efficient ‘cooperative’ learning strategies basing on the combination of active and semi-supervised alongside transfer learning to best exploit available data in combination with data synthesis. Further, approaches to estimate meaningful confidence measures in this domain are suggested, as they form (part of) the basis of the weakly supervised learning algorithms. In addition, first successful approaches towards holistic speech analysis are presented using deep recurrent rich multi-target learning with partially missing label information. Finally, steps towards needed distribution of processing for big data handling are demonstrated.

Keywords

Speech analysis Paralinguistics Big data Self-learning 

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.University of Passau, Chair of Complex and Intelligent SystemsPassauGermany
  2. 2.Deparment of ComputingImperial College LondonLondonUK
  3. 3.audEERING UGGilchingGermany
  4. 4.Joanneum ResearchGrazAustria
  5. 5.CISAUniversity of GenevaGenevaSwitzerland
  6. 6.Harbin Institute of TechnologyHarbinPeople’s Republic of China

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