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What and Who
Title:Learning representations with autoencoders: a brief overview and a few novel perspectives
Speaker:Pascal Vincent
coming from:Département d'Informatique et Recherche Opérationnelle Université de Montréal
Speakers Bio:
Event Type:Talk
Visibility:D1, D2, D3, D4, D5, RG1, SWS, MMCI
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Level:Public Audience
Language:English
Date, Time and Location
Date:Monday, 17 November 2014
Time:13:15
Duration:45 Minutes
Location:Saarbrücken
Building:E1 4
Room:024
Abstract
Representations are at the heart of adaptive perception and the ability to take intelligent decisions. Raw low-level sensory inputs typically come in a very high dimensional, intricate representation wherein meaning and statistical regularities are deeply hidden. In recent years, research on novel principles, approaches and algorithms for the unsupervised discovery and learning of good representations -- starting from low-level ones as input -- has been a key enabler of progress in machine learning. Techniques this research inspired are now routinely used to train large deep networks that achieve record-breaking performance on supervised tasks of industrial relevance.

Among the multiple paradigms for unsupervised representation learning, my focus will be on autoencoders. I will give a brief overview of several autoencoder variants that I contributed to develop, and explain how they can be related to other paradigms such as probabilistic graphical models and manifold modeling. This presentation should convey a sense of what was learned, how this line of research matured, and how my vision of what representation learning should consist of changed along the way. I will also present novel perspectives, such as decoderless autoencoders, as well as other research directions and open questions that I think are worth investigating further, in our quest for the ability to autonomously learn truly better, more meaningful, representations.

Contact
Name(s):Connie Balzert
Phone:0681 9325-2000
EMail:cbalzert@mpi-inf.mpg.de
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Created by:Connie Balzert/MPI-INF, 11/12/2014 03:16 PMLast modified by:Uwe Brahm/MPII/DE, 11/24/2016 04:13 PM
  • Connie Balzert, 11/12/2014 03:16 PM -- Created document.