Carnegie Mellon's Harpy System: Difference between revisions
No edit summary |
|||
| Line 39: | Line 39: | ||
== Historical Context == | == Historical Context == | ||
== Key Innovations == | == Key Innovations == | ||
Revision as of 13:13, 14 September 2023
Sherry Yu-Ting
Wansu
Janice
Wenjun Meng
Carnegie Mellon's Harpy System
Jump to navigationJump to search
Introduction
The Harpy connected speech recognition system is the attempt to understand two earlier speech recognition systems developed at Carnegie-Mellon University : The Hearsey-1 system and the Dragon system. The two system have slightly different approaches in terms of XXX. The Hearsay System must use all these sources of knowledge effectively in the Hearsay System, this is achieved by representing knowledge as as a set of cooperating parallel process. The Hearsay System also use the source of knowledge (acoustics-phonetics, prosody, lexicon, syntax, semantics and pragmatics) to generate hypothesis about what words might appear. The Hearsay System is incrementally trying to match words to the un-analyzed portion of the utterance if the resulting word matches are not optimal, the system backs up and tries a different path. The technique was known as probabilistic tree xxx. The Hearsay System cannot recognize sentences in unrestricted English and can only recognize (?) simple phrase structure languages.
beam research
| Feature | Hearsay System | Dragon System | |
|---|---|---|---|
| Model | cooperating parallel process | probabilistic function of a Markov process | |
| Search Strategy | Best-First ( Beam Research ) | all paths in parallel ( search all the possible syntactic
and acoustic paths through the network in parallel to determine optimal path ) |
|
| Segmentation | uses it to reduce effective utterance length | X |
Historical Context
Key Innovations
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
Impact
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
Future research
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Cite error: The opening <ref> tag is malformed or has a bad name
References
To insert a reference, type <ref> and paste the source your exported from Zotero (or whatever reference manager you're using) in the pop up box which appears. Make sure links in citations are clickable using proper formatting. Once you do this, a footnote will appear.Cite error: The opening <ref> tag is malformed or has a bad name and a reference comes at the end automatically. Please use this method to cite for Wiki articles only, not for your thesis.
Insert paragraph [1]
- ↑ Lowerre, B., & Reddy, R. (1976). The harpy speech recognition system: performance with large vocabularies. The Journal of the Acoustical Society of America, 60(S1), S10-S11.