This project is a comprehensive Lisp AI implementation library that provides reference implementations for various artificial intelligence paradigms and symbolic algorithms. It functions as a multi-purpose toolkit containing a logic programming engine, a natural language processing suite, and a symbolic mathematics toolkit.
The library is distinguished by its diverse architectural frameworks, including a Prolog-style execution engine that uses unification and goal-driven backtracking, and a system for simulating human decision-making through expert system shells and certainty factors. It also includes a specialized game AI implementation featuring alpha-beta pruning and minimax search for board games.
The project covers a broad capability surface, including symbolic computation for differentiation and integration, natural language parsing and generation via definite clause grammars, and compiler construction tools for translating symbolic logic into optimized bytecode. It further provides tools for knowledge representation using frames and production rules, as well as constraint satisfaction solvers for diagrammatic labeling.
The codebase is written in Common Lisp and includes an interactive read-eval-print loop for real-time expression interpretation.
