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Svetha Venkatesh Curtin University, Australia Surviving the Data Deluge: Scalable feature extraction, discrimination and analysis 2 1 2 3 3 with Dinh Phung and Duc Son Pham NSF Workshop Jan, 2011

Svetha Venkatesh Curtin University, Australia

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Surviving the Data Deluge: Scalable feature extraction, discrimination and analysis. … . … . Svetha Venkatesh Curtin University, Australia. 2. 1. 2. 3. 3. NSF Workshop Jan, 2011. with Dinh Phung and Duc Son Pham. Sensing Beyond Nyquist , compress at information level. - PowerPoint PPT Presentation

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Page 1: Svetha Venkatesh Curtin University, Australia

Svetha VenkateshCurtin University, Australia

Surviving the Data Deluge:Scalable feature extraction, discrimination and analysis

… 2 1 2 3 3…

with Dinh Phung and Duc Son Pham

NSF Workshop Jan, 2011

Page 2: Svetha Venkatesh Curtin University, Australia

2

Sensing

Beyond Nyquist, compress at information level

sensor sub-sampling

temporal sub-sampling

Page 3: Svetha Venkatesh Curtin University, Australia

3

Analysis Machine learning that ‘ubiquitously’ scales

…data

Model complexity grows as data grows.Non Parametric models

Example: Bayesian nonparametrics

2 1 2 3 3

Page 4: Svetha Venkatesh Curtin University, Australia

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Multi-scale Decision makingEmotion counts!

Incidental influences

Immediate emotions

Decision/behaviour

Expected consequences

Expectedemotions

Expected utility (common) Immediate emotion and role in decision

making

Pervasive Framework for immediate affect detection and its role in decision making

First application area – autism – use/build sensors to regulate affect (mobile phones/ipad)

Later examine decision making regulated by affect

anxiety report