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EXPERTS REQUIRE EXPERT PROGRAMMERS, BUT NEURAL NETS ARE AMAZINGLY ACCURATE 'IDIOT SAVANTS'

 ATLANTA, Feb. 25 /PRNewswire/ -- For years, programmers touted the promise of "expert systems" -- complex packages which use rules supplied by human specialists.
 Though credited with everything from identifying cancer cells to predicting storms, expert systems has built-in limitations, most notably that human experts often can't trace the reasoning behind the decisions they make.
 Now, a new generation of software which resolves this shortcoming, is hitting the commercial market. Called "neural nets," these programs learn directly from data, and operate without defined rules.
 "If an expert system is like a trained professional," said Stanley Dalnekoff of Promised Land Technologies in New Haven, Conn., "neural nets are like idiot savants." (Idiot savants are mentally impaired individuals who exhibit extraordinary genius in particular areas such as music or higher mathematics.)
 Neural nets use pattern recognition to simulate human learning and make predictions. For example, if Braincel(TM), a neural-net add-on for spreadsheets, is supplied with information about loan applications, it weighs the data against the known outcomes, adjusting their relative values, until it can give new applications the same rating the human loan officer would. After a brief training period using only data (no rules are supplied) it can make decisions better than a real person.
 "The difference between humans and machines," Dalnekoff said, "is humans sometimes have bad days, computers never do."
 Thus, while a stock analyst may be over-cautious in the wake of some major losses, or a gambler may play long shots trying to make up for lost ground, a properly trained neural net won't lose its judgment -- something Braincel's sister products, Future$Builder(TM) and Dr. Trot(TM), have proved time after time.
 Future$Builder, a how-to-system for incorporating neural nets into stocks and futures trading, comes with a T-Bond program which returned 292 percent on investments in 1992. Dr. Trot, a sports-betting template, consistently outperformed the professional touts reporting in the "Harness Eye."
 Neural nets can be used for any decision which uses numerical, logical or even fuzzy data. Other Braincel customers use them to help formulate new plastics, choose products for test-marketing, or decide when to buy raw materials.
 Braincel, Future$Builder and Dr. Trot are all published by Promised Land Technologies and work within the familiar environment of Windows(TM) spreadsheets. They can be ordered through Egghead Discount Software or directly from the publisher at 800-243-1806.
 -0- 2/25/93
 /CONTACT: Sara Unrue of Promised Land Technologies, 800-243-1806, or Jane Hammond of Words and Images, 404-449-7987 (evenings), for Promised Land Technologies/


CO: Promised Land Technologies ST: Georgia, Connecticut IN: CPR SU:

BR-RA -- AT006 -- 0388 02/25/93 12:36 EST
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Publication:PR Newswire
Date:Feb 25, 1993
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