kamera data prediction

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 !