Babel2 connects the implementations of our core technologies such as Fluid Construction Grammar (FCG) and Incremental Recruitment Language (IRL) with mechanisms for multi-agent interactions, robotic embodiment, cognitive processing and learning. An extensive monitoring system gives access to every detail of Babel2’s intermediate representations and dynamics and a high modularity ensures that the system can be used in a very wide variety of scenarios.
Babel2 is written in Common Lisp and runs in most major Lisp implementations (CCL, SBCL, Lispworks) on all major platforms (linux, MAC OS X, Windows). Its source code is frequently released to the public under the Apache License.
FCG is a computational framework for exploring issues in construction grammar. This unification-based grammar formalism uses feature structures for representing linguistic knowledge, and it can apply the same constructions in both parsing and production. FCG also comes with a web interface for visualizing the application of constructions during language processing and the resulting constructs.
Incremental Recruitment Language is a fully operational computational formalism for representing and processing semantic structures that underlie compositional grammatical utterances. IRL represents meaning as networks of procedural cognitive operations. It comes with mechanisms for goal-driven conceptualization from perceptual data streams and for their interpretation.
Babel2 also ships with mechanisms for multi-agent interactions, robotic embodiment, cognitive processing and meta-level learning. An extensive monitoring system opens up every detail of Babel2’s intermediate representations and underlying dynamics. A modular design ensures that the system can be used in a wide variety of scenarios.
Babel2 is written in Common Lisp because we strongly believe that Lisp is the best programming language for doing what we do. What’s not so great about using Lisp is that setting up a proper Lisp environment can be difficult sometimes. But don’t surrender, it can be done and I hope this page will help you to succeed. If you get stuck or find problems with this instruction, don’t hesitate to us.
Babel2 runs on a number of Lisps, including Clozure Common Lisp (CCL), SBCL, Lispworks, and others. If you have one of these Lisps installed, then most of the work is already done and you only need to install the other two tools. Note that Babel2 will not work if your Lisp doesn’t support threads.
If you don’t have a Lisp on your machine, then we recommend CCL as a Lisp implementation, Emacs as an editor and development environment (don’t frown, it’s still better than vi) and Slime for the communication between the lisp and Emacs. Computer experts feel free to install any of the above Lisps (plus gnuplot and graphviz) and all others follow the instructions for their operating system below. Please note that Babel2 will not run in the free Lispworks Personal Edition because it has a heap size limit. Good luck!
(load "C:/Users/Username/Babel2/libraries/asdf") (load "C:/Users/Username/Babel2/init-babel")
(load "/Users/Username/Babel2/libraries/asdf") (load "/Users/Username/Babel2/init-babel")
(load "/home/username/Babel2/libraries/asdf") (load "/home/username/Babel2/init-babel")
We assume you have a working lisp environment and Babel2 installation. The following documentation is intended to get you started with the core frameworks of Babel2. Each getting started guide is accompanied by an example found in the Babel2 release.