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Table 1 Summary of datasets

From: Investigating class rarity in big data

Positives

Negatives

Total

%Positives

%Negatives

a. Medicare Part B

 1,409 (all)

3,691,146

3,692,555

0.038

99.962

 1,000

3,691,146

3,692,146

0.027

99.973

 750

3,691,146

3,691,896

0.020

99.980

 500

3,691,146

3,691,646

0.014

99.986

 400

3,691,146

3,691,546

0.011

99.989

 300

3,691,146

3,691,446

0.008

99.992

 200

3,691,146

3,691,346

0.005

99.995

 100

3,691,146

3,691,246

0.003

99.997

 50

3,691,146

3,691,196

0.001

99.999

b. PostSlowloris Combined

 6,646 (all)

3,270,220

3,276,866

0.203

99.797

 1,000

3,270,220

3,271,220

0.031

99.969

 750

3,270,220

3,270,970

0.023

99.977

 500

3,270,220

3,270,720

0.015

99.985

 400

3,270,220

3,270,620

0.012

99.988

 300

3,270,220

3,270,520

0.009

99.991

 200

3,270,220

3,270,420

0.006

99.994

 100

3,270,220

3,270,320

0.003

99.997

 50

3,270,220

3,270,270

0.002

99.998