1.1 Primary Data Sources
- Zenodo Complete Dataset: ~300MB, 6+ million records from all iSamples sources
- OpenContext Parquet: Curated archaeological sample data
- Domain-specific Collections: Specialized datasets for focused analysis
Tutorials: Overview
Welcome to the iSamples tutorials! These tutorials demonstrate how to work with sample data using modern browser-based tools and geoparquet files.
1 Available Data Sources
With iSamples Central currently unavailable, all tutorials now use geoparquet files as the primary data source:
1.2 Tutorial Categories
🗺️ Geographic Analysis - Interactive mapping and spatial exploration - Regional distribution analysis - Cesium-based 3D visualizations
📊 Data Analysis - Statistical analysis with DuckDB-WASM - Material category distributions - Cross-collection comparisons
🚀 Performance Demonstrations - Browser-based big data analysis - Efficient sampling and visualization techniques - HTTP range request optimization
2 Why Geoparquet?
Our tutorials showcase how geoparquet + DuckDB-WASM enables:
- ✅ Universal access: No software installation required
- ✅ Fast analysis: 5-10x faster than traditional approaches (e.g., downloading full CSV datasets and analyzing them locally). See benchmark
- ✅ Memory efficient: Analyze 300MB datasets using <100MB browser memory
- ✅ Minimal data transfer: Only download what you need
- ✅ Interactive exploration: Real-time parameter adjustment