4th International Conference on Spoken Language Processing
Philadelphia, PA, USA
This paper presents and evaluates a phonological phrase parser for a Spanish text-to-speech system. The parser consists of three stages: 1) lexical lookup, using a small dictionary (428 words); 2) preliminary phrase boundary placement, using a modification of Liberman and Churchís (1992) function group parser; and 3) readjustment of phrase boundaries, using syllable count and punctuation. A corpus of 382 hand-parsed sentences (1,691 phrases) was used to evaluate the parser. The parser generated almost the same number of phrases (1,692) as the hand-parsed sentences with 70% (1,186) agreement. Suggestions for improving the parserís performance include the expansion of the verb lexicon, performing simple morphological analysis for verbs, and relaxing the syllable count in phrases before verb forms.
Bibliographic reference. Karn, Helen E. (1996): "Design and evaluation of a phonological phrase parser for Spanish text-to-speech", In ICSLP-1996, 1696-1699.