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Shinji Watanabe (NTT Communication Science Laboratories, Japan)
Monday 30 May 2011, 13:00-14:00
Incremental adaptation of speech recognition based on macroscopic time evolution system
- đ¤ Speaker: Shinji Watanabe (NTT Communication Science Laboratories, Japan)
- đ Date & Time: Monday 30 May 2011, 13:00 - 14:00
- đ Venue: Cambridge University Engineering Department, Lecture Room 6
Abstract
In a real environment, acoustic and language features often vary depending on the speakers, speaking styles and topic changes. To accommodate these changes, speech recognition approaches have to include the incremental tracking of changing environments. In this talk, I introduce acoustic model adaptation based on macroscopic time evolution system, where posterior distributions of acoustic model parameters are successively updated based on a macroscopic time scale. I also introduce a topic tracking language model that can adaptively track changes in topics based on current text information and previously estimated topic models in an on-line manner. In addition, I briefly introduce recent NTT CS Labs’ speech recognition research, which mainly focuses on meeting recognition.
Series This talk is part of the Machine Intelligence Lab Seminar series.
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