Maria Aguilera Garcia

Technical Blog

AI insights and customer stories

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Before You Fix Your Data, Understand It.

Before You Fix Your Data, Understand It.

April 2024

A practical walkthrough of feature interpretation and sanity checks before training models on the Forest Cover Type Prediction dataset.

Machine LearningKaggleFeature EngineeringEDA
Kaggle Competition: Spaceship Titanic

Kaggle Competition: Spaceship Titanic

February 2024

Explored missing-value patterns and model pipelines for Kaggle's sci-fi classification challenge.

KaggleData CleaningFeature Engineering
Bike Sharing Demand Forecasting

Bike Sharing Demand Forecasting

January 2024

Forecasted hourly bike demand with time-aware validation and a focus on seasonality patterns.

ForecastingTime SeriesPython
Instagram Graph Analysis and Community Detection

Instagram Graph Analysis and Community Detection

December 2023

Applied graph algorithms to map community structure and identify influential nodes in an Instagram dataset.

GraphXCommunity DetectionNetworks
Lunar Landing Assignment

Lunar Landing Assignment

November 2023

Trained a reinforcement learning agent with reward shaping to maximize stable, accurate landings.

Reinforcement LearningPPOGame Theory
Training AWS DeepRacer

Training AWS DeepRacer

October 2023

Built a custom reward function to balance lap time with centerline stability in AWS DeepRacer.

Reinforcement LearningAWS DeepRacerReward Shaping
Corporate Data Breaches and Narrative Disclosures

Corporate Data Breaches and Narrative Disclosures

2020

An undergraduate thesis examining how public firms adjust narrative disclosures after data breaches.

EconometricsStatisticsR
Master Thesis: Raw Material Forecasting of Industrias Duero

Master Thesis: Raw Material Forecasting of Industrias Duero

2023

A collaborative master thesis on demand forecasting and supply chain optimization using ML and time-series methods.

ForecastingTime SeriesSupply Chain
Learning to Land with PPO

Learning to Land with PPO

February 2025

How Proximal Policy Optimization (PPO) learns to land a tiny spacecraft: task setup, key equations, intuition, and the hyperparameters that keep training stable.

Reinforcement LearningPPOAdvantage Actor-CriticLunarLander
An Attempt to Make Reinforcement Learning Simple

An Attempt to Make Reinforcement Learning Simple

February 2025

A conversational walk through reinforcement learning: the problem it solves, how the loop works, and why exploration matters.

Reinforcement LearningFundamentals
From Prediction to Decision: A Gentle Introduction to Reinforcement Learning

From Prediction to Decision: A Gentle Introduction to Reinforcement Learning

February 2026

A clear and visual introduction to reinforcement learning, and how it differs fundamentally from supervised and unsupervised learning.

Reinforcement LearningMachine LearningFoundationsAI
Reinforcement Learning, Explained

Reinforcement Learning, Explained

February 2025

A beginner-friendly introduction to reinforcement learning: the agent-environment loop, MDPs, policies, and the exploration tradeoff.

Reinforcement LearningFundamentalsMDPPolicy