{"repo":"sajal2692/data-science-portfolio","free":true,"listed":false,"github":"https://github.com/sajal2692/data-science-portfolio","clone":"git clone https://github.com/sajal2692/data-science-portfolio.git","description":"Portfolio of data science projects completed by me for academic, self learning, and hobby purposes.","language":"Jupyter Notebook","stars":1244,"topics":["data-science","portfolio","python","pandas","scikit-learn","machine-learning","nlp","pytorch"],"license":"MIT","category":"machine-learning","readme_excerpt":"Data Science Portfolio These are data-science projects I built early in my career (around 2016). If you're starting out — learning the fundamentals or putting together your own portfolio — I hope you find them a useful reference. As of 2026 I've refreshed the whole repository so every notebook still runs top-to-bottom on a current Python 3.14 stack. For my current work in AI engineering (LLM agents, RAG, and applied ML), see sajalsharma.com . A collection of data-science projects — completed for academic, self-learning, and hobby purposes — presented as Jupyter notebooks, plus a few R analyses published on RPubs. Data used in these projects (under data/ ) is for demonstration purposes only. Running the notebooks The project uses uv for environment management (Python 3.14): Or with pip: Most notebooks read the small datasets under data/ . Two fetch their data on first run and cache it: the digit-recognition notebook downloads MNIST via torchvision , and the stock-market notebook pulls tech-stock prices via yfinance (with a vendored snapshot as a fallback). Contents - ### Machine Learning - Predicting Boston Housing Prices: Building and tuning a decision-tree regressor to predict home values, and evaluating how reliable those predictions are. (Includes a note on the Boston dataset's history and why it was retired from scikit-learn.) - Supervised Learning: Finding Donors for CharityML: Comparing several supervised learning algorithms to predict whether an individual earns more t","default_branch":null,"files":null,"tree":[],"storefront":"/r/sajal2692","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/sajal2692/data-science-portfolio/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}