BSR

Binary Subtree Representation (Binary Subtree Sets) - alternative to SPPF introduced in GLL: Generalised LL.

See:

• Scott, Elizabeth & Johnstone, Adrian & van Binsbergen, L. Thomas. (2019). Derivation representation using binary subtree sets. Science of Computer Programming. 175. 10.1016/j.scico.2019.01.008.