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1
The Unsupervised Acquisition of a Lexicon from Continuous Speech.
De Marcken, Carl
In: DTIC AND NTIS (1995)
Abstract:
We present an unsupervised learning algorithm that acquires a natural-language lexicon from raw speech. The algorithm is based on the optimal encoding of symbol sequences in an MDL framework, and uses a hierarchical representation of language that overcomes many of the problems that have stymied previous grammar-induction procedures. The forward mapping from symbol sequences to the speech stream is modeled using features based on articulatory gestures. We present results on the acquisition of lexicons and language models from raw speech, text, and phonetic transcripts, and demonstrate that our algorithm compares very favorably to other reported results with respect to segmentation performance and statistical efficiency.
Keyword:
*ARTIFICIAL INTELLIGENCE
;
*SPEECH RECOGNITION
;
ACOUSTIC SIGNALS
;
ALGORITHMS
;
COMPUTATIONAL LINGUISTICS
;
COMPUTER PROGRAMS
;
CONTEXT SENSITIVE GRAMMARS
;
Cybernetics
;
DATA ACQUISITION
;
DATA BASES
;
DATA COMPRESSION
;
EFFICIENCY
;
HIERARCHIES
;
INPUT OUTPUT PROCESSING
;
LEARNING MACHINES
;
LEXICOGRAPHY
;
Linguistics
;
MACHINE TRANSLATION
;
MATHEMATICAL MODELS
;
NATURAL LANGUAGE
;
OPTIMIZATION
;
PATTERN RECOGNITION
;
PHONEMES
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PHONETICS
;
PHRASE STRUCTURE GRAMMARS
;
SPEECH ANALYSIS
;
SPEECH COMPRESSION
;
SYNTAX
;
TEXT PROCESSING
;
VOCABULARY
;
WORD RECOGNITION
;
WORDS(LANGUAGE)
URL:
http://www.dtic.mil/docs/citations/ADA307187
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA307187
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