Slate is a prototype-based object-oriented programming language based on Self, CLOS, and Smalltalk. Slate syntax is Smalltalk-80-based, rather than trying to be clever and complex. However, the language semantics, environment, and run-time design are all much more powerful than in traditional Smalltalk systems. The design goal is to bring together many excellent existing ideas into one system, and to provide an environment where design decisions in one area don't constrain others.
InformationSpace is a causal set exploration tool. A causal set is basically a set of simple rules that define the relationship between bits in a space time. A common example of this is John Conway's game of life. InformationSpace supports 3D space/time (2D of space, 1D of time). Visualization is in 3D, with Y being time.
Genetic Algorithm in Squeak is a genetic algorithm framework that implements the operation of selection, mutation, and crossing-over. Memetic-algorithm capabilities were added through an implementation of a local search based on hill climbing and dynamic hill climbing. Mutation operations are based on random gaussian-like distribution, so small adjustments are more likely than drastic ones. Selection is implemented with Tournament or with Roulette Wheel and Elite, in Roulette Wheel you can chose Sigma Fitness Scaling or Linear Fitness Scaling. The modelling capabilities of Smalltalk and the visualization an development capabilities of Squeak were exploited, and priorized in spite of the apparently low performance of both Smalltalk and Squeak.
Kew is a simple, embeddable, container-based, object-oriented programming language. Many of its features are inspired by Smalltalk and Scheme. Its syntax is similar to Smalltalk's, but it has the compact and modular design of Scheme, along with proper closures and continuations. There is also powerful exception handling and write-your-own containers, which allow you to produce sandboxes.