2003-11-07
... ?Scientific American: Baffling the Bots -- Anti-spammers take on automatons posing as humans
These Turing tests for Internet bots are a cognitive puzzle that can be solved by humans but not by computers. 'Humans are very good at reading very strange stuff,' says Baird, whose formal title is principal scientist and area manager of statistical pattern and image analysis at PARC (no longer Xerox PARC).
