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Speech technology on trial: Experiences from the August system
KTH, Superseded Departments, Speech, Music and Hearing.ORCID iD: 0000-0002-0397-6442
KTH, Superseded Departments, Speech, Music and Hearing.
2000 (English)In: Natural Language Engineering, ISSN 1351-3249, E-ISSN 1469-8110, Vol. 6, no 3-4, p. 273-286Article in journal (Refereed) Published
Abstract [en]

In this paper, the August spoken dialogue system is described. This experimental Swedish dialogue system, which featured an animated talking agent, was exposed to the general public during a trial period of six months. The construction of the system was partly motivated by the need to collect genuine speech data from people with little or no previous experience of spoken dialogue systems. A corpus of more than 10,000 utterances of spontaneous computer- directed speech was collected and empirical linguistic analyses were carried out. Acoustical, lexical and syntactical aspects of this data were examined. In particular, user behavior and user adaptation during error resolution were emphasized. Repetitive sequences in the database were analyzed in detail. Results suggest that computer-directed speech during error resolution is increased in duration, hyperarticulated and contains inserted pauses. Design decisions which may have influenced how the users behaved when they interacted with August are discussed and implications for the development of future systems are outlined.

Place, publisher, year, edition, pages
2000. Vol. 6, no 3-4, p. 273-286
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-13326OAI: oai:DiVA.org:kth-13326DiVA, id: diva2:323656
Note
QC 20100611Available from: 2010-06-11 Created: 2010-06-11 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Developing Multimodal Spoken Dialogue Systems: Empirical Studies of Spoken Human–Computer Interaction
Open this publication in new window or tab >>Developing Multimodal Spoken Dialogue Systems: Empirical Studies of Spoken Human–Computer Interaction
2002 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

This thesis presents work done during the last ten years on developing five multimodal spoken dialogue systems, and the empirical user studies that have been conducted with them. The dialogue systems have been multimodal, giving information both verbally with animated talking characters and graphically on maps and in text tables. To be able to study a wider rage of user behaviour each new system has been in a new domain and with a new set of interactional abilities. The five system presented in this thesis are: The Waxholm system where users could ask about the boat traffic in the Stockholm archipelago; the Gulan system where people could retrieve information from the Yellow pages of Stockholm; the August system which was a publicly available system where people could get information about the author Strindberg, KTH and Stockholm; the AdAptsystem that allowed users to browse apartments for sale in Stockholm and the Pixie system where users could help ananimated agent to fix things in a visionary apartment publicly available at the Telecom museum in Stockholm. Some of the dialogue systems have been used in controlled experiments in laboratory environments, while others have been placed inpublic environments where members of the general public have interacted with them. All spoken human-computer interactions have been transcribed and analyzed to increase our understanding of how people interact verbally with computers, and to obtain knowledge on how spoken dialogue systems canutilize the regularities found in these interactions. This thesis summarizes the experiences from building these five dialogue systems and presents some of the findings from the analyses of the collected dialogue corpora.

Place, publisher, year, edition, pages
Stockholm: KTH, 2002. p. x, 96
Series
Trita-TMH ; 2002:8
Keyword
Spoken dialogue system, multimodal, speech, GUI, animated agents, embodied conversational characters, talking heads, empirical user studies, speech corpora, system evaluation, system development, Wizard of Oz simulations, system architecture, linguis
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-3460 (URN)
Public defence
2002-12-20, 00:00
Note
QC 20100611Available from: 2002-12-11 Created: 2002-12-11 Last updated: 2010-06-11Bibliographically approved

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