Third European Conference on Speech Communication and Technology

Berlin, Germany
September 22-25, 1993


Referent Tracking in Restricted Texts Using a Lemmatized Lexicon: Implications for Generation of Intonation

Merle Horne (1), Marcus Filipsson (1), Mats Ljungqvist (2), Anders Lindström (2)

(1) Dept. of Linguistics and Phonetics, Univ. of Lund, Lund, Sweden
(2) INFOVOX, Solna, Sweden

An algorithm for referent tracking in a restricted domain is described which allows one to preprocess a text and automatically tag words as either contextually 'New' or 'Given'. The algorithm presupposes computational modelling of lexical semantic identity of sense relations as well as information on inflexional/derivational morphology and compounding. This information is available in a lemmatized lexicon of Swedish. Referent identity is defined on head-word representations derived from the text input on the basis of the inflexional expansion rules contained in the lexicon. Information on the New/Given status of words can subsequently be used in the F0-generating component of the text-to-speech system to trigger the assignment of focal vs non-focal word accents.

Keywords: prosody, intonation, text-to-speech, referent-tracking, coreference, anaphora, new information, given information, focal accent, lexical relations, identity of sense

Full Paper

Bibliographic reference.  Horne, Merle / Filipsson, Marcus / Ljungqvist, Mats / Lindström, Anders (1993): "Referent tracking in restricted texts using a lemmatized lexicon: implications for generation of intonation", In EUROSPEECH'93, 2011-2014.