no code implementations • 13 Mar 2022 • Xinhua Zhang, Lance R. Williams
Because the magnitude of inner products with its basis functions are invariant to rotation and scale change, the Fourier-Mellin transform has long been used as a component in Euclidean invariant 2D shape recognition systems.
no code implementations • 13 Mar 2022 • Xinhua Zhang, Lance R. Williams
Group convolution generalizes the concept to linear operations on functions of group elements representing more general geometric transformations and which commute with those transformations.
no code implementations • 15 Mar 2021 • Lance R. Williams
Replication time is among the most important components of a bacterial cell's reproductive fitness.
no code implementations • 16 May 2018 • Lance R. Williams
An object-oriented combinator chemistry was used to construct an artificial organism with a system architecture possessing characteristics necessary for organisms to evolve into more complex forms.
no code implementations • 4 Jun 2015 • Lance R. Williams
We describe a visual programming language for defining behaviors manifested by reified actors in a 2D virtual world that can be compiled into programs comprised of sequences of combinators that are themselves reified as actors.