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Better Learning of Physical Activity by using Social Activity Data

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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  1. Better Learning of Physical Activity by using Social Activity Data

  2. Outline • DataSet Description • Current Status • Proposal for improvement

  3. DataSet Description • Place: Kendal at Hanover • Subjects: 8 • Duration: 6 August 2009 to 15August 2009

  4. Previous Classification Result • A simple classification of activities using LogitBoost • Considered activities: • Stationary • Walking • Upstairs • Downstairs

  5. LogitBoost

  6. Training Results

  7. Person 1

  8. Courtesy: Linden A. Vongsathorn

  9. Proposal Improve Physical activity model using Social activity

  10. Proposed Changes • Relabel the data • Use extra information in a weak classifier to form a strong classifier

  11. Proposed Changes(1) • Factor augmented Vector Auto Regressive Model

  12. Proposed Changes(2) 4. Bayesian inference

  13. Mixed Coupled HMM 5. PB sAB sAB PA

  14. Mixture of HMM and Factorial HMM 6. stAB St+1AB PA PB PA

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