Speaker-independent Mandarin polysyllabic word recognition

H. Y. Chang, B. Chen, Chen Te Chou, Chi-Ming Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper we consider the design of speaker-independent Mandarin polysyllabic word recognition system from two viewpoints: the phonetical modeling and the recognition speeds. For phonetical modeling, we consider the accurate acoustic models that can increase the recognition rate. This paper experiments three phonetical models: context-independent INITIALs, right-context-dependent null-INITIALs models, and right-context-dependent INITIALs and null-INITIALs models. The recognition results show respectively on average recognition rate 99.1%, 93.7% and 83.6% for 500-words, 5000-words, and 25000-words tasks. While for top 3 words, the average rates 99.8%, 98.5% and 95.2% are achieved. On the basis of the recognition results, we consider the fast computing algorithms to increase computing speeds. Since that the tree-trellis search algorithm can retain the recognition rate of system and has the potential to greatly reduce the search time, this paper adopts the search algorithm as the basic framework and investigates some implementation techniques. The results show that the tree-trellis algorithm can provide a search time slightly dependent with word size.
Original languageEnglish
Title of host publicationISSPA 96 - FOURTH INTERNATIONAL SYMPOSIUM ON SIGNAL PROCESSING AND ITS APPLICATIONS, PROCEEDINGS, VOLS 1 AND 2
PublisherQueensland University of Technology
Pages329-332
Number of pages4
ISBN (Print)1-86435-209-4
StatePublished - Aug 1996
EventProceedings of the 1996 4th International Symposium on Signal Processing and its Applications, ISSPA'96. Part 2 (of 2) - Gold Coast, Aust
Duration: 25 Aug 199630 Aug 1996

Conference

ConferenceProceedings of the 1996 4th International Symposium on Signal Processing and its Applications, ISSPA'96. Part 2 (of 2)
CityGold Coast, Aust
Period25/08/9630/08/96

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