Biology Reference
In-Depth Information
2
Simulating and Evaluating
Biosurveilla
nce Datasets
Thomas H. Lotze
Applied Mathematics and Scientific Computation Program
University of Maryland
College Park, Maryland
Galit Shmueli
Department of Decision, Operations & Information Technologies
and Center for Health and Information Decision Systems
University of Maryland
College Park, Maryland
Inbal Yahav
Robert H.Smith School of Business
University of Maryland
College Park, Maryland
CoNTENTS
2.1
Motivation..................................................................................................... 24
2.2
Data Simulation............................................................................................ 26
2.2.1
Overview........................................................................................... 26
2.2.2
Creating Initial Multivariate Data ................................................. 26
2.2.3
Adding Effects of Holidays, Seasonality, and DOW .................. 28
2.2.3.1
Holidays.............................................................................. 28
2.2.3.2
Seasonality ......................................................................... 28
2.2.3.3
Day-of-Week (DOW) ......................................................... 28
2.3
Mimicking Existing Dataset Qualities ..................................................... 28
2.4
Evaluating Simulation Effectiveness......................................................... 30
2.4.1
Univariate χ
2
Tests............................................................................ 30
2.4.2
Multivariate Tests............................................................................. 31
2.5
Outbreak Signature Simulation ................................................................. 32
2.5.1
Overview........................................................................................... 32
2.5.2
Outbreak Signature Types.............................................................. 34
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