# MovieLens from Zero: Schema, EDA, and Efficient Loading with Polars

> Source: https://sukruyusufkaya.com/en/learn/oneri-sistemleri/movielens-schema-eda-polars-yukleme
> Updated: 2026-05-13T13:29:33.819Z
> Category: Öneri Sistemleri
> Module: Module 2: Data, Labels and Ethics
**TLDR:** File structure of MovieLens-100K, 1M, 25M, row-by-row schema, lazy/streaming load with Polars (10-30x faster than Pandas), sparse matrix conversion, first EDA graphics, and data quality checks.