“…The Pygmalion project [19,21,24,181], sponsored by the European Community E s p r i t Programme, has been developed with three basic objectives: firstly, to develop a European standard general tool that includes the same facilities and functionality found in commercial systems; secondly, to provide an open environment, which can be easily extended and interfaced to other tools; and finally, to provide portability for neural network applications, so that trained and partially trained networks can be easily moved from machine to machine. To meet the first two objectives, the software environment is based on X-Windows, C, and C++, while portability is achieved by defining an intermediate level network specification as a subset of C.…”