Better learning of physical activity by using social activity data
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Better Learning of Physical Activity by using Social Activity Data PowerPoint PPT Presentation


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Better Learning of Physical Activity by using Social Activity Data . Outline. DataSet Description Current Status Proposal for improvement. DataSet Description. Place: Kendal at Hanover Subjects: 8 Duration: 6 August 2009 to 15August 2009. Previous Classification Result.

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Better Learning of Physical Activity by using Social Activity Data

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Better Learning of Physical Activity by using Social Activity Data


Outline

  • DataSet Description

  • Current Status

  • Proposal for improvement


DataSet Description

  • Place: Kendal at Hanover

  • Subjects: 8

  • Duration: 6 August 2009 to 15August 2009


Previous Classification Result

  • A simple classification of activities using LogitBoost

  • Considered activities:

    • Stationary

    • Walking

    • Upstairs

    • Downstairs


LogitBoost


Training Results


Person 1


Courtesy:

Linden A. Vongsathorn


Proposal

Improve Physical activity model using Social activity


Proposed Changes

  • Relabel the data

  • Use extra information in a weak classifier to form a strong classifier


Proposed Changes(1)

  • Factor augmented Vector Auto Regressive Model


Proposed Changes(2)

4. Bayesian inference


Mixed Coupled HMM

5.

PB

sAB

sAB

PA


Mixture of HMM and Factorial HMM

6.

stAB

St+1AB

PA

PB

PA


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