kamera data prediction
TRANSCRIPT
KAMERA
Pei-Yuan SungYi-Ting WangKAMERA
Big data
OutlineIntroduction & Data SourceData InspectorVariable FindingMethod
Introduction & Data SourceProblem20130101 ~ 20131231, KAMERA
Deliverablesgee method 20140811-20140817
Take a look at Data
37predictor variable
3 variableTraining datapredicting data
Totaldata visualization; variable
Totaldata visualization; variableK-meanstotalvariablevariabletotal;
Totaldata visualization; variableK-meanstotalvariablevariabletotal; generalized estimating equation (GEE)
Totaldata visualization; variableK-meanstotalvariablevariabletotal; generalized estimating equation (GEE)TotalWeightfit GEEK-meanstotalweight
Data Inspector boxplot
totalMin01st Qu8Median18Mean373rd Qu54Max226
Hospital VS Total
Time VS Total
Month VS Total
Hospital VS Time
Hospital1Back
Variable Finding K-means clustering total , ,
Back
Method : GEEGEE: generalized estimating equation ()()
:,
total date ()tz,Hospital_PKgroup total tz : Hospital
Covariance matrixCovariance matrix : AR(1)
, covariance matrix , covariance matrix
: Total ~ 1 + Month + Time + Hospital + Group + Time:HospitalCovariance Matrix : AR1Family : Poisson link Log functionBack
Weight selectionIndex
Weight K-meansTotal < 27 0.927 < Total < 46 0.9590 < Total < 140 1.1Total > 140 1.15
Weight selectionCross Validation (90% for training; 10% for testing data)
Training data (90%)Testing data (10%)
Repeat : 100 times and then take mean of the index
Thank you !