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s7ex-j/README.md
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📚 Tabla de Contenidos

This is me :)

Hi, I'm Andre (Jharol André Vilca Ramos), double-degree student in Industrial Engineering and Data Science, broadcasting from Lima, Perú 🇵🇪. I build SQL pipelines, models and dashboards that turn messy operational data into actionable insights — applying industrial engineering rigor to data science problems.

I'm a restless reader: I devour papers on AI fairness, behavioral economics, psychology of decision-making, environmental engineering, legal informatics, and fitness science — whatever catches my attention today.

  • 🎓 Student: Industrial Engineering + Data Science (dual track)
  • 📍 Based in: Lima, Perú
  • 🏢 Target role: Analista de Datos Junior / Practicante BI
  • 📊 Daily driver: Python (Pandas, scikit-learn, statsmodels), R (XGBoost, Stan/brms), TypeScript
  • 🗄️ BI stack: SQL (DuckDB: CTEs, window functions, star schema), Power BI (DAX), Looker Studio
  • 🧪 Research interests: AI ethics & fairness, decision neuroscience, behavioral economics, environmental sustainability, legal informatics, fitness science, ensemble methods for prediction
  • 📝 Academic writing: LaTeX (IEEE, APA 7), reproducible reports with DOI on Zenodo and ResearchGate — see Publications

🔮 Building

Project Description Status Stack
dashboard-demanda-delivery Star schema in DuckDB, 10 SQL marts, 17 data-quality rules and tests; Power BI (DAX) + public Looker Studio · DOI ✅ v1.0.0 SQL · DuckDB · Power BI · Looker Studio
demanda-delivery-v2 Price elasticity of demand in food delivery (456K obs.): OLS, panel FE, IV, splines · DOI ✅ v3.3.0 Python · statsmodels · linearmodels · LaTeX
A.N.D.R.E. Ensemble stacking predictor for football matches (World Cup 2026) ⚡ Active R · XGBoost · Stan/brms · plumber
dophamine Offline-first wellness app: nutrition, training & biometrics tracker with weekly insights · site · web app 🚀 v0.3.0 TypeScript · React Native · SQLite
theyso Self-hosted remote control for Claude Code / OpenCode from your phone: local server + Flutter app, no cloud in between 🚀 v0.1.2 Python · WebSockets · Flutter · Tailscale
LaTeX Templates Academic writing templates following IEEE and APA 7 standards ✅ Maintenance LaTeX · IEEE · APA 7

📄 Publications

Elasticidad precio-demanda en el servicio de delivery de comidas: evidencia desde datos transaccionales (2026). Working paper, v3.3.0. Price elasticity of demand on a food delivery platform with 456,548 week × center × meal observations: OLS, two-way fixed effects, IV 2SLS, restricted cubic splines and quantile regression. Main finding: elasticity is not a single number — it varies with price level, category, week and identification strategy. DOI ResearchGate Code

Dashboard de demanda en delivery: SQL (DuckDB), Power BI y Looker Studio (2026). Software, v1.0.0. Data layer and dashboards for the same 456,548-row dataset: star schema, 10 business queries with CTEs and window functions (ABC, cohorts, promotion index, price deciles), 17 quality rules that stop the pipeline, and tests that reconcile every figure with the study above. DOI Looker Studio Code

Informe Técnico: Caracterización Fisicoquímica de Suelos Urbanos del Parque Kennedy (2026). Technical report. DOI Code


💡 Thinking about

Right now, Andre is deep-diving into:

  • Industrial Engineering + AI — optimizing systems with data-driven decisions
  • Causal inference — counterfactuals for real-world impact
  • xG/football analytics — ensemble methods for match prediction
  • AI in legal docs — NLP for contract analysis (side quest)
  • Decision neuroscience — what the brain tells us about choice
  • Fitness science & nutrition — data-driven wellness tracking

thinking

my perfect stack

Python R TypeScript React Native SQLite Docker LaTeX NumPy Pandas scikit-learn statsmodels XGBoost Stan



BI & data engineering
SQL DuckDB Power BI Looker Studio pytest


🧩 Skillset Radar

skill radar chart language radar chart

📊 Pulse

GitHub Pulse

🌟 Featured Work

Dashboard de demanda Elasticidad
A.N.D.R.E. Dophamine

Pinned Loading

  1. A.N.D.R.E-Modelo-predictivo-mundiales A.N.D.R.E-Modelo-predictivo-mundiales Public

    2026 World Cup predictor: Dixon-Coles + XGBoost + Neural Net + Hierarchical Bayesian (Stan/brms), stacked via meta-learner. R API (plumber) + single-file HTML dashboard with live market odds. Walk-…

    R 2

  2. dashboard-demanda-delivery dashboard-demanda-delivery Public

    SQL (DuckDB) star schema, 10 business marts, 17 data-quality rules and tests; Power BI (DAX) and public Looker Studio dashboards on 456K food-delivery records.

    Python

  3. demanda-delivery-v2 demanda-delivery-v2 Public

    Elasticidad precio-demanda en delivery de comidas con 456 548 observaciones (Kaggle/Genpact): OLS, panel con efectos fijos, IV 2SLS, splines y regresión cuantil. Informe en LaTeX y código reproduci…

    Jupyter Notebook

  4. Dophamine Dophamine Public

    Offline-first nutrition, training & biometrics tracker that records daily totals and converts them into clear weekly recommendations — no per-food logging, no spreadsheets.

    TypeScript