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Titolo:
PROSODIC AND LEXICAL INDICATIONS OF DISCOURSE STRUCTURE IN HUMAN-MACHINE INTERACTIONS
Autore:
SWERTS M; OSTENDORF M;
Indirizzi:
UNIV INSTELLING ANTWERP,CTR NEDERLANDSE TAAL & SPRAAK,UNIV PL 1 B-2610 WILRIJK BELGIUM IPO,CTR RES USER SYST INTERACT NL-5600 MB EINDHOVEN NETHERLANDS BOSTON UNIV,DEPT ELECT COMP & SYST ENGN BOSTON MA 02215
Titolo Testata:
Speech communication
fascicolo: 1, volume: 22, anno: 1997,
pagine: 25 - 41
SICI:
0167-6393(1997)22:1<25:PALIOD>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPEECH-ACT TYPE; INTONATION; DIALOG; TEXT;
Keywords:
PROSODY; DISCOURSE STRUCTURE; HUMAN-MACHINE INTERACTION; SPOKEN DIALOGUE SYSTEMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
CompuMath Citation Index
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
42
Recensione:
Indirizzi per estratti:
Citazione:
M. Swerts e M. Ostendorf, "PROSODIC AND LEXICAL INDICATIONS OF DISCOURSE STRUCTURE IN HUMAN-MACHINE INTERACTIONS", Speech communication, 22(1), 1997, pp. 25-41

Abstract

From a discourse perspective, utterances may vary in at least two important respects: (i) they can occupy a different hierarchical positionin a larger-scale information unit and (ii) they can represent different types of speech acts. Spoken language systems will improve if theyadequately take into account both discourse segmentation and utterance purpose. An important question then is how such discourse-structuralfeatures can be detected. Analyses of monologues and human-human dialogues have shown that a good indicator of these factors is prosody, defined as the set of suprasegmental speech features. This paper explores whether speakers also use prosody to highlight discourse structure in a particular type of human-machine interaction, viz., information query in a travel-planning domain. More specifically, it investigates ifspeakers signal (i) the start of a new topic by marking the initial utterance of a discourse segment, and (ii) whether an utterance is a normal request for information or part of a correction sub-dialogue. Thestudy reveals that in human-machine interactions, both discourse segmentation and utterance purpose can have particular prosodic correlates, although speakers also mark this information through choice of wording. Therefore, it is useful to explore in the future the possibilitiesof incorporating prosody in spoken language systems as a cue to discourse structure. (C) 1997 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 15:59:07