Aha-ib is an external inducer that interfaces the IB1-4 series from 3/9/94 . IB_CLASS should be set to one of the following values: ib1, ib2, ib3, or ib4. The seed and specific flags can be set in the options IBL_SEED and IBL_FLAGS. The executable ``ibl'' must be in the current path.
IBL is a research system and is not very robust. It does not check when its limits are exceeded and sometimes goes out of bounds on arrays, corrupting memory and usually core dumping. If it crashes, the most probable cause is that some constant in datastructures.h is too small. In the version distributed with MLC++ we have increased the limits to 200 attributes and 10,000 instances.
There are some problems that we have discovered when trying to IBL on many datafiles:
Contact David Aha (email@example.com) with questions, problems, and requests for the source code.