using gps to learn family routines: a summary
Post on 25-Jan-2015
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Using GPS to Learn Family Routines: a Summary
Scott Davidoff
Everyday routines are unavailable to most sensing systems
Smart phones can make routines computable
Why does that matter?
Use routine models to lower anxiety when juggling kids’ rides
Identify mechanisms that result in coordination problems for families
CONTRIBUTION 1
Demonstrate a new activity lies in the scope of sensing + machine learning
CONTRIBUTION 2
Visualize the day’s plan using learned activity, place, pick-up time and driver
CONTRIBUTION 3
Contribution 1
Routines are not documented on calendars or elsewhere
1
Families do not recall one another’s routines perfectly
2
Families make plans that depend on incorrect information
3
Why is this a problem?
Sometimes kids get left at activities. Anxiety for everybody.
Contribution 2
Sense pick-ups and drop-offs1
PLACE 1
t4
PLACE 2
t3t2t1
Sensing Drop-Offs
Parent Child
PLACE 1
t4
PLACE 2
t3t2t1
Sensing Pick-Ups
Parent Child
Over 90% precision and over 90% recall without supervision
Predict drivers2
Use a decision tree:a) distribution over
past driversb) real-time locationc) observables
Unsupervised, online learning using 1 week of training data is 72% accurate
Unsupervised, online learning using 4 week of training data is 88% accurate
Predict Late Pick-Ups3
25
PredictionClass
Observable
LearnedModel
0.6590.8010.825
tideal – 30tideal – 10tideal
Time to Pick-Up
A’ Value
Contribution 3
The Family Time-Flow ® shows the plan for the day using routine models
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