[Theory] 12/7 Thesis Defense: Qingming Tan, TTIC

[Mary Marre]

*When*:     Wednesday, December 7th from *1:00 - 3:00 pm CT*

*Virtually*: attend virtually *here
<https://uchicagogroup.zoom.us/meeting/register/tJYodemsrzwjHdZUCfy-hT3ul111h5LP-JIO>*

*Who*:       Qingming Tan, TTIC

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*Thesis Title*:   Representation Learning for Speech Data

*Abstract*: Supervised learning has been the dominant approach for training
deep neural networks for learning good representations. However, one
limiting factor to scale supervised learning is the lack of enough
annotated data. Motivated by this challenge, it is natural to explore
methods that learn generic information from a large amount of unlabeled
data. I describe the broad study of representation learning for speech data
I have conducted. Unlike most other works that focus on one or a few
learning settings, this thesis studies multiple settings:  supervised
learning with auxiliary losses, unsupervised learning, semi-supervised
learning, and multi-view learning. Besides different learning problems, I
also explore multiple approaches for representation learning. For example,
I will present our bidirectional contextual encoder for learning speech
representations (introduced in 2018), using informative prior distributions
to assist autoencoding-style representation learning, a few techniques for
variational representation learning models, and multi-view masked
reconstruction for self-supervised learning.

*Thesis Advisor*: *Karen Livescu* <klivescu at ttic.edu>



Mary C. Marre
Faculty Administrative Support
*Toyota Technological Institute*
*6045 S. Kenwood Avenue, Rm 517*
*Chicago, IL  60637*
*773-834-1757*
*mmarre at ttic.edu <mmarre at ttic.edu>*
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