dc.contributor.advisor | Zhang, Yuwen, 1965- | eng |
dc.contributor.author | Li, Xiaolong, 1976- | eng |
dc.date.issued | 2005 | eng |
dc.date.submitted | 2005 Fall | eng |
dc.description | The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. | eng |
dc.description | Title from title screen of research.pdf file viewed on (November 13, 2006) | eng |
dc.description | Includes bibliographical references. | eng |
dc.description | Vita. | eng |
dc.description | Thesis (Ph. D.) University of Missouri-Columbia 2005. | eng |
dc.description | Dissertations, Academic -- University of Missouri--Columbia -- Computer engineering and computer science. | eng |
dc.description.abstract | In this dissertation, a real-time decoding engine for speaker-independent large vocabulary continuous speech recognition (LVCSR) is presented. Three indispensable and correlated performance measurements -- accuracy, speed, and memory cost, are carefully considered in the system design. A novel algorithm, Order-Preserving Language Model Context Pre-computing (OPCP) is proposed for fast Language Model (LM) lookup, resulting in significant improvement in both overall decoding time and memory space without any decrease of recognition accuracy. The time and memory savings in LM lookup by using OPCP became more pronounced with the increase of LM size. By using the OPCP method and other optimizations, our one-pass LVCSR decoding engine, named TigerEngine, reached real-time speed in both tasks of Wall Street Journal 20K and Switchboard 33K, on the platform of a Dell workstation with one 3.2 GHz Xeon CPU. TigerEngine is to be used in automatic captioning for Telehealth. | eng |
dc.identifier.merlin | b5710606x | eng |
dc.identifier.uri | https://hdl.handle.net/10355/4119 | |
dc.identifier.uri | https://doi.org/10.32469/10355/4119 | eng |
dc.language | English | eng |
dc.publisher | University of Missouri--Columbia | eng |
dc.relation.ispartofcommunity | University of Missouri--Columbia. Graduate School. Theses and Dissertations | eng |
dc.subject.lcsh | Real-time control | eng |
dc.subject.lcsh | Automatic speech recognition | eng |
dc.subject.lcsh | Coding theory | eng |
dc.subject.lcsh | Programming languages (Electronic computers) | eng |
dc.title | Real-time speaker-independent large vocabulary continuous speech recoginition | eng |
dc.type | Thesis | eng |
thesis.degree.discipline | Computer science (MU) | eng |
thesis.degree.grantor | University of Missouri--Columbia | eng |
thesis.degree.level | Doctoral | eng |
thesis.degree.name | Ph. D. | eng |