Rough paths, signatures and the modelling of functions on streams by Lyons, T

“…Taylor’s theorem explains how any smooth function can, locally, be expressed as a linear combination of certain special functions (monomials based at that point). Coordinate iterated integrals form a more subtle algebra of features that can describe a stream or path in an analogous way; they allow a definition of rough path and a natural linear “basis” for functions on streams that can be used for machine learning.…”

The transition from the Younger Dryas to the Pre-Boreal in southern Britain: some new perspectives on the spatial patterning and chronology of long blade sites by Barton, RNE, Roberts, AJ

“…Amongst the present suggestions are that such localities were principally workshop sites where blades were manufactured for later use, and/or that they served a special function related to horse and reindeer butchery. …”