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

Better Learning of Physical Activity by using Social Activity Data


Outline

Outline

  • DataSet Description

  • Current Status

  • Proposal for improvement


Dataset description

DataSet Description

  • Place: Kendal at Hanover

  • Subjects: 8

  • Duration: 6 August 2009 to 15August 2009


Previous classification result

Previous Classification Result

  • A simple classification of activities using LogitBoost

  • Considered activities:

    • Stationary

    • Walking

    • Upstairs

    • Downstairs


Logitboost

LogitBoost


Training results

Training Results


Person 1

Person 1


Better learning of physical activity by using social activity data

Courtesy:

Linden A. Vongsathorn


Proposal

Proposal

Improve Physical activity model using Social activity


Proposed changes

Proposed Changes

  • Relabel the data

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


Proposed changes 1

Proposed Changes(1)

  • Factor augmented Vector Auto Regressive Model


Proposed changes 2

Proposed Changes(2)

4. Bayesian inference


Mixed coupled hmm

Mixed Coupled HMM

5.

PB

sAB

sAB

PA


Mixture of hmm and factorial hmm

Mixture of HMM and Factorial HMM

6.

stAB

St+1AB

PA

PB

PA


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