Projects | Luiz Fernando

Diet Pandas

Python Library

Automated memory optimization library for Pandas DataFrames. Intelligently reduces memory usage by 50-80% through aggressive type downcasting while preserving data integrity. Published on PyPI with comprehensive documentation.

🚀 Highlights

Published on PyPI - available via pip install diet-pandas
50-80% memory reduction on real-world datasets (tested on 4.3M+ rows)
Drop-in replacement for pandas.read_csv with automatic optimization
Full documentation with MkDocs, benchmarks, and CI/CD pipeline

Python Pandas NumPy PyPI MkDocs

GitHub 📚 Documentation

Rubber Duck Detection

Computer Vision

Intelligent rubber duck detection system powered by YOLO deep learning architecture. Specifically designed for identifying rubber ducks in various environments with high accuracy and real-time processing capabilities.

🚀 Highlights

YOLO-based object detection for precise localization
Robust to various lighting and weather conditions

Python YOLO OpenCV

View on GitHub

Real-Time Anomaly Engine

Streaming & Observability

Production-ready real-time anomaly detection engine for e-commerce logs. It combines high-throughput Kafka ingestion, Spark structured streaming, and TimescaleDB for metrics storage, plus LLM-powered insights.

🚀 Highlights

End-to-end streaming pipeline with Kafka and Spark
RAG pipeline + embeddings for LLM-guided root cause insights
Automatic anomaly detection with alerting

Python Spark Kafka LangChain

View on GitHub

Soletras

Full-Stack NLP

Brazilian word searcher system that helps people complete the Brazilian SpellingBee. Features advanced filtering and search capabilities powered by SpaCy NLP.

🚀 Highlights

SpaCy NLP to filter conjugated verbs and plurals
550,633+ Brazilian Portuguese words
Modern React 18 + Vite frontend

Python Flask React SpaCy

View on GitHub

PUMLE

Data Engineering

Innovative data pipeline for geological carbon storage in Brazilian reservoirs. Transforms complex simulation outputs into streamlined multidimensional arrays.

🚀 Highlights

Multi-format export (NumPy, Zarr, MAT-files, CSV)
Optimized for large-scale geological simulations

Python NumPy Zarr

View on GitHub

Car Plate Detection

Computer Vision

Intelligent license plate recognition system powered by YOLO deep learning architecture. Designed for Brazilian vehicle registration patterns with high accuracy.

🚀 Highlights

YOLO-based object detection for precise plate localization
Character recognition optimized for Brazilian formats

Python YOLO OpenCV

View on GitHub

Michael Scott Speak Generator

NLP

Text generation system powered by GPT-2 transformers architecture. Generates text in the style of Michael Scott from "The Office", leveraging advanced NLP techniques.

🚀 Highlights

Fine-tuning on character-specific dialogue
Contextual understanding of "The Office" episodes

Python Transformers PyTorch

View on Hugging Face

Motion Coach: Gym Assistant

Computer Vision

Innovative gym assistant application that leverages computer vision to provide real-time feedback on exercise form and technique. Achieved F1-score of 0.92.

🚀 Highlights

Real-time pose detection and tracking
Form analysis using keypoint detection

Python FastAPI MediaPipe

View on GitHub

Bin Packing Optimizer

Algorithms

High-performance solution to the Variable-Sized Bin Packing Problem (VSBPP). Built from scratch in C++ to achieve optimal space utilization with minimal computational overhead.

🚀 Highlights

Optimized C++ implementation for maximum speed
Variable-sized container support

C++ Algorithms Optimization

View on GitHub

Branch and Bound

Optimization

Mathematical optimization powerhouse implementing the classic Branch and Bound algorithm. Designed to solve complex integer linear programming problems with guaranteed optimal solutions.

🚀 Highlights

Classic Branch and Bound implementation
Integer linear programming solver

Python MIP Math

View on GitHub

NumPy from Scratch

Low-Level

Ground-up recreation of NumPy's core functionality using pure C programming. Demonstrates deep understanding of memory management, array operations, and performance optimization.

🚀 Highlights

Pure C implementation for maximum control
High-dimensional array manipulation

C Memory Management

View on GitHub