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World-class senior data scientist skill specialising in statistical modeling, experiment design, causal inference, and predictive analytics. Covers A/B testing (sample sizing, two-proportion z-tests, Bonferroni correction), difference-in-differences, feature engineering pipelines (Scikit-learn, XGBoost), cross-validated model evaluation (AUC-ROC, AUC-PR, SHAP), and MLflow experiment tracking — usi
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Licença: MIT
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Senior Data Scientist
World-class senior data scientist skill for production-grade AI/ML/Data systems.
Core Workflows
1. Design an A/B Test
import numpy as np
from scipy import stats
def calculate_sample_size(baseline_rate, mde, alpha=0.05, power=0.8):
"""
Calculate required sample size per variant.
baseline_rate: current conversion rate (e.g. 0.10)
mde: minimum detectable effect (relative, e.g. 0.05 = 5% lift)
"""
p1 = baseline_rate
p2 = basel
[Description truncada. Veja o README completo no GitHub.]
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