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ASCCJR/README.md

Hi there, I'm Antonio! 👋

Data Science & Analytics

Python pandas scikit-learn PySpark SQL Databricks Power BI NLP

🎓 Graduando em Análise e Desenvolvimento de Sistemas (FGV) com foco em dados e IA.


📌 Projetos

Projeto Stack Destaque
LH Nautical — Data Pipeline Databricks, PySpark, Delta Lake, Streamlit Pipeline medallion (Bronze→Silver→Gold) com integração da API do Banco Central. Revelou margem de -5,3% sobre R$2,6B de receita. Link Dashboard
One Bank — Churn Prediction Scikit-learn, XGBoost, SHAP, SMOTE Comparação de 3 modelos via cross-validation, threshold tuning e simulação de ROI (+R$655k)
Online Retail Analytics Python, Pandas, Seaborn, Statsmodels EDA orientada a negócios com Segmentação RFM e análise de sazonalidade. Descobriu anomalias financeiras de -£245k e evidenciou a regra 70/30 na receita
Chatbot NLP — E-commerce NLTK, scikit-learn, BERT, Gradio Pipeline NLP clássico: classificação de intenções, NER com validação, busca FAQ multi-nível e análise de sentimento. Link Demo ao vivo

📫 Contato

LinkedIn · antoniosergiok@gmail.com

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