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An artificial Intelligence Approach to improving Speech Recognition

Speech Recognition is a technology with promising applications. However, the performance of current speech recognizers greatly limit their widespread use. Approaches to reducing the word error rate have mainly been associated with statistical techniques. As a consequence, speech recognition results...

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Main Author: Lopes, Luis Ramos dos Santos
Other Authors: Mashao, Daniel
Format: Thesis
Language:English
Published: Department of Electrical Engineering 2014
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access_status_str Open Access
author Lopes, Luis Ramos dos Santos
author2 Mashao, Daniel
author_browse Lopes, Luis Ramos dos Santos
Mashao, Daniel
author_facet Mashao, Daniel
Lopes, Luis Ramos dos Santos
author_sort Lopes, Luis Ramos dos Santos
collection Thesis
description Speech Recognition is a technology with promising applications. However, the performance of current speech recognizers greatly limit their widespread use. Approaches to reducing the word error rate have mainly been associated with statistical techniques. As a consequence, speech recognition results can still contain sentences that are nonsensical. The method proposed here, is to analize the output of any chosen speech recognition system, in order to determine whether a sentence contains syntactic or semantic errors. This is done via a software agent that uses the information from its knowledge base to attempt to correct the errors found. A system was implemented with a small vocabulary speaker-independent continuous speech recognition system, with limited sentence structures. The achieved increase in speech recognition accuracy, shows that there are bene ts in using this approach.
format Thesis
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institution University of Cape Town (South Africa)
language eng
last_indexed 2026-06-10T12:32:38.580Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2014
publishDateRange 2014
publishDateSort 2014
publisher Department of Electrical Engineering
publisherStr Department of Electrical Engineering
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source_str UCTD — University of Cape Town Open Access Repository
spelling oai:open.uct.ac.za:11427/5180 An artificial Intelligence Approach to improving Speech Recognition Lopes, Luis Ramos dos Santos Mashao, Daniel Ventura, Neco Engineering Speech Recognition is a technology with promising applications. However, the performance of current speech recognizers greatly limit their widespread use. Approaches to reducing the word error rate have mainly been associated with statistical techniques. As a consequence, speech recognition results can still contain sentences that are nonsensical. The method proposed here, is to analize the output of any chosen speech recognition system, in order to determine whether a sentence contains syntactic or semantic errors. This is done via a software agent that uses the information from its knowledge base to attempt to correct the errors found. A system was implemented with a small vocabulary speaker-independent continuous speech recognition system, with limited sentence structures. The achieved increase in speech recognition accuracy, shows that there are bene ts in using this approach. 2014-07-31T10:55:06Z 2014-07-31T10:55:06Z 2009 Master Thesis Masters MSc http://hdl.handle.net/11427/5180 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment University of Cape Town
spellingShingle Engineering
Lopes, Luis Ramos dos Santos
An artificial Intelligence Approach to improving Speech Recognition
thesis_degree_str Master's
title An artificial Intelligence Approach to improving Speech Recognition
title_full An artificial Intelligence Approach to improving Speech Recognition
title_fullStr An artificial Intelligence Approach to improving Speech Recognition
title_full_unstemmed An artificial Intelligence Approach to improving Speech Recognition
title_short An artificial Intelligence Approach to improving Speech Recognition
title_sort artificial intelligence approach to improving speech recognition
topic Engineering
url http://hdl.handle.net/11427/5180
work_keys_str_mv AT lopesluisramosdossantos anartificialintelligenceapproachtoimprovingspeechrecognition
AT lopesluisramosdossantos artificialintelligenceapproachtoimprovingspeechrecognition