SAN DIEGO — A software development firm says it has solved one of the hardest problems in artificial intelligence, successfully extracting hierarchical categories from streams of sensory data. And for $50,000, HNC Software Inc. will tell you just how it accomplished that feat.

The company's software, called Cortronics, uses neural networks to model fundamental operations that a person's brain calls on to handle those same tasks.

EE Times - AI software system extracts meaning from babble