Oleg Zabluda's blog
Monday, September 19, 2016
 
Rest in Peas: The Unrecognized Death of Speech Recognition (2010)
Rest in Peas: The Unrecognized Death of Speech Recognition (2010)
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The accuracy of computer speech recognition flat-lined in 2001, before reaching human levels. The funding plug was pulled, but no funeral, no text-to-speech eulogy followed.

After a long gestation period in academia, speech recognition bore twins in 1982: the suggestively-named Kurzweil Applied Intelligence and sibling rival Dragon Systems. Kurzweil’s software, by age three, could understand all of a thousand words—but only when spoken one painstakingly-articulated word at a time. Two years later, in 1987, the computer’s lexicon reached 20,000 words, entering the realm of human vocabularies which range from 10,000 to 150,000 words. But recognition accuracy was horrific: 90% wrong in 1993. Another two years, however, and the error rate pushed below 50%. More importantly, Dragon Systems unveiled its Naturally Speaking software in 1997 which recognized normal human speech. Years of talking to the computer like a speech therapist seemingly paid off.
[...]
In 2001 recognition accuracy topped out at 80%, far short of HAL-like levels of comprehension. Adding data or computing power made no difference. Researchers at Carnegie Mellon University checked again in 2006 and found the situation unchanged.
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https://web.archive.org/web/20130120011331/http://robertfortner.posterous.com/the-unrecognized-death-of-speech-recognition
https://geektimes.ru/post/92771/
https://geektimes.ru/post/92771

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