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.

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Outline
Outline Activity Data

  • DataSet Description

  • Current Status

  • Proposal for improvement


Dataset description
DataSet Activity Data Description

  • Place: Kendal at Hanover

  • Subjects: 8

  • Duration: 6 August 2009 to 15August 2009


Previous classification result
Previous Classification Activity Data Result

  • A simple classification of activities using LogitBoost

  • Considered activities:

    • Stationary

    • Walking

    • Upstairs

    • Downstairs


Logitboost
LogitBoost Activity Data


Training results
Training Results Activity Data


Person 1
Person 1 Activity Data


Courtesy: Activity Data

Linden A. Vongsathorn


Proposal
Proposal Activity Data

Improve Physical activity model using Social activity


Proposed changes
Proposed Changes Activity Data

  • Relabel the data

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


Proposed changes 1
Proposed Changes(1) Activity Data

  • Factor augmented Vector Auto Regressive Model


Proposed changes 2
Proposed Changes(2) Activity Data

4. Bayesian inference


Mixed coupled hmm
Mixed Coupled HMM Activity Data

5.

PB

sAB

sAB

PA


Mixture of hmm and factorial hmm
Mixture of HMM and Factorial HMM Activity Data

6.

stAB

St+1AB

PA

PB

PA


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