# Blake Rayvid

> Developer, Data Scientist, and Applied Mathematician specializing in quantitative finance, machine learning, algorithms and web design.

## Core Pages
- [About / Home](https://blakerayvid.com/) - Main introduction, core skills, and professional overview.
- [Portfolio](https://blakerayvid.com/portfolio/) - Directory of data science projects, financial tools, and useful web apps. 
- [Data Science CV](https://cv.blakerayvid.com/) - Full interactive web-based professional resume with PDF download.

## Financial Tools
- [Compare Stock Returns](https://blakerayvid.com/2025/06/01/compare-stock-returns/) - Flask application using Pandas and yfinance to compare stock returns and custom portfolios against a benchmark.
- [TQQQ Trading Algorithm](https://blakerayvid.com/2024/08/21/tqqq-trading-algorithm/) - Dynamic SPY/TQQQ risk-managed algorithm engineered in Python on QuantConnect.
- [Efficient Portfolio](https://blakerayvid.com/2020/12/07/efficient-portfolio/) - Python implementation of Robert C. Merton’s 1972 minimum-variance portfolio construction algorithm.

## Machine Learning & Data Science
- [Deep Learning for Clothing Classification](https://blakerayvid.com/2026/07/23/fashion-mnist-cnn/) - PyTorch-based clothing classifier featuring a 3-block CNN optimized with spatial dropout, batch normalization, and AdamW.
- [Tweet Sentiment Classifier](https://blakerayvid.com/2024/07/12/sentiment-classifier/) - NLP model analyzing Twitter dataset patterns to monitor brand reputation, built with Python.
- [OCR Image Search](https://blakerayvid.com/2026/04/21/ocr-image-search/) - A privacy-focused 100% local image text parsing search tool powered by Flask and Tesseract OCR.

## Full-Stack Web Applications
- [Based News Reader](https://blakerayvid.com/2025/04/19/based-news-reader/) - Automated RSS news aggregator, filtering and prioritizing headlines based on user preferences using the Gemini API.
- [RouteCat](https://blakerayvid.com/2022/05/01/routecat/) - Web application that clusters and distributes deliveries to multiple drivers and optimizes routes using the Google Maps API.