International Planning Competition (IPC) on HTN Planning

Roughly every two years, the ICAPS conference hosts the International Planning Competition (IPC), in which the participating planning systems compete against each other on a set of planning benchmarks unknown to the participants. In the years in between other competitions related to planning are sometimes carried out, they cover -- to provide just two examples -- proving unsolvability or concern modelling assistance.

The planning competitions cover different problem classes like classical planning, planning under uncertainty, planning with time -- or hierarchical planning! These are usually organized in "tracks", so any IPC of a particular years may have multiple tracks, one track per problem class.