DARPA Speech Understanding Research
Introduction
DARPA stands for Defense Advanced Research Projects Agency, a research agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. As the DARPA's then-director George Heilemeir stated, "Get computers to read Morse code in the presence of other code and noise, get computers to identify/detect key words in a stream of speech, [...] make a real contribution to command and control, and; do a good thing in sonar"[1]. Thus, the main reason why it was the US Ministry of Defense who would fund such a project is that it could serve the navy's purposes.
Considering that the project was to be used for military purposes, a number of requirements were put forward for it, especially relevant for military purposes. For example, the system had to be able to recognize several speakers at once, and also have no delay in recognition of speech. Thus, five main objectives of the research were established:
| Accepting connected speech |
| From many cooperative speakers |
| Accepting 1000 words |
| Yielding only <10% semantic errors |
| Real-time understanding |
This is the reason why it is understanding in the first place, and not recognition: to attain successful understanding what was said or what was intented to be said rathern than simple recognizing some words taken out of context.
Historical Context
There had been partially successful attempts to understand discrete speech (see, for example, Bell's Audrey) but no system to understand speech that is continious existed at the time[2]. Moreover, previous methods dealt with vocabularies no larger than 200 words (e.g., IBM's 16-word "Shoebox"), while DARPA's SUR aimed at a vocabulary with at least one thousand words.
Project Progess
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Impact
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Future research
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References
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- ↑ Gaon, A. (2021). The Future of Copyright in the Age of Artificial Intelligence. Великобритания: Edward Elgar Publishing.
- ↑ Funding a Revolution: Government Support for Computing Research. (1999). Украина: National Academies Press.
- ↑ Glantz, Richard "SHOEBOX: a personal file handling system for textual data." In Proceedings of the November 17-19, 1970, Fall Joint Computer Conference 1970. 535-545. [1]
Group members
- Igor Marchenko
- Wangyiyao Zhou
- Yanpei Ouyang
- Youyang Cai
- Yi Lei