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ML Hyper-Trainer

gamified machine learning

6 Challenges

MVP

Credit Card Fraud

💳

· Target: 83% accuracy

Data Preview

Features

Scaling

Train

Dataset Overview

284,807 rows

20

TOTAL COLUMNS

18

NUMERIC FEATURES

0

MISSING COLUMNS

17

OUTLIER COLUMNS

Data Quality Issues Detected

Amount: contains outliers

V1 (PCA): contains outliers

V2 (PCA): contains outliers

V3–V10 (PCA): contains outliers

V11–V28 (PCA): contains outliers

V4 (PCA): contains outliers

V5 (PCA): contains outliers

V6 (PCA): contains outliers

V7 (PCA): contains outliers

V8 (PCA): contains outliers

V9 (PCA): contains outliers

V10 (PCA): contains outliers

V11 (PCA): contains outliers

V12 (PCA): contains outliers

V13 (PCA): contains outliers

V14 (PCA): contains outliers

V15 (PCA): contains outliers

ColumnTypeSample ValuesDistributionMissingOutliersImportance

Class

TARGET

Target: 0 = Normal, 1 = Fraud (0.17% fraud)

Target
000

None

No

Amount

Transaction amount in USD

Numeric
149.622.69378.66

μ=88.35 σ=250.12

None

Yes

75%

Time

Seconds since first transaction

Numeric
011

μ=94813 σ=47488

None

No

18%

V1 (PCA)

PCA-transformed feature 1 (anonymized)

Numeric
-1.361.19-1.36

μ=0 σ=1.96

None

Yes

81%

V2 (PCA)

PCA-transformed feature 2 (anonymized)

Numeric
-0.070.270.16

μ=0 σ=1.65

None

Yes

62%

V3–V10 (PCA)

PCA-transformed features 3–10

Numeric
2.54-0.341.77

μ=0 σ=1.4

None

Yes

55%

V11–V28 (PCA)

PCA-transformed features 11–28 (lower importance)

Numeric
0.11-0.090.25

μ=0 σ=0.9

None

Yes

33%

V4 (PCA)

PCA component

Numeric
0.440.120.33

μ=0 σ=1.4

None

Yes

58%

V5 (PCA)

PCA component

Numeric
-0.340.55-0.11

μ=0 σ=1.3

None

Yes

45%

V6 (PCA)

PCA component

Numeric
0.15-0.080.45

μ=0 σ=1.3

None

Yes

21%

V7 (PCA)

PCA component

Numeric
0.230.140.88

μ=0 σ=1.2

None

Yes

52%

V8 (PCA)

PCA component

Numeric
0.09-0.110.05

μ=0 σ=1.1

None

Yes

18%

V9 (PCA)

PCA component

Numeric
-0.550.22-0.18

μ=0 σ=1

None

Yes

35%

V10 (PCA)

PCA component

Numeric
0.22-0.330.15

μ=0 σ=1

None

Yes

61%

V11 (PCA)

PCA component

Numeric
-0.110.45-0.22

μ=0 σ=1

None

Yes

48%

V12 (PCA)

PCA component

Numeric
0.33-0.180.42

μ=0 σ=0.9

None

Yes

55%

V13 (PCA)

PCA component

Numeric
-0.220.15-0.38

μ=0 σ=0.9

None

Yes

12%

V14 (PCA)

PCA component

Numeric
0.18-0.420.25

μ=0 σ=0.9

None

Yes

65%

V15 (PCA)

PCA component

Numeric
-0.140.22-0.11

μ=0 σ=0.9

None

Yes

8%

Is Overnight

Transaction occurred between 12am-6am

Binary
01

None

No

11%

💡 Review the data carefully — understanding your features helps you make better preprocessing choices.

── PIPELINE SCORE ────

C

64/100

Accuracy modifier: ×1.01

Features

78

Scaling

65

Outliers

30

Architect

75

Remove low-importance features (<25%) to reduce noise.

Some features are highly skewed — try Log or Sqrt normalization.

You have outlier columns — consider clipping or imputing them.

Step 1 of 3

Score: 64/100