RASED: A Scalable Dashboard for Monitoring Road Network Updates in OpenStreetMap
summary
RASED is a web dashboard that precomputes daily and monthly aggregates into a hierarchical temporal index of four-level data cubes so queries hit a few pages only. It stores ~4 billion aggregated cells in ~7,000 nodes (~28 GB) built from the full OSM history (billions of updates, ~16 years), uses caching plus a cache-aware optimizer to pick daily/weekly/monthly cubes, and returns country-, road-type- and tag-aggregations in milliseconds for interactive exploration.
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chapters (6)
- 0:00Introduction and motivation
- 3:54Queries supported by RASID
- 7:03RASID architecture overview
- 10:56Query execution and optimization
- 13:04Live demo of RASID
- 15:58Conclusion and Q&A
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