Authors: Gnjatović, Milan
Janev, Marko 
Delić, Vlado
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: Focus tree: Modeling attentional information in task-oriented human-machine interaction
Journal: Applied Intelligence
Volume: 37
Issue: 3
First page: 305
Last page: 320
Issue Date: 1-Jan-2012
Rank: M21
ISSN: 0924-669X
DOI: 10.1007/s10489-011-0329-5
This paper introduces a new model of attentional state in task-oriented human-machine interaction. It integrates three lines of research: (i) neurocognitive understanding of the focus of attention in working memory, (ii) the notion of attention related to the theory of discourse structure in the field of computational linguistics, and (iii) investigation of a corpus that comprises recordings of spontaneous speech-based human-machine interaction. The underlying idea was to make a computationally appropriate representation of attentional information that imitates the function of a focus of attention in human perception. The introduced model addresses both the research questions of storage and processing of attentional information. Finally, the paper illustrates the model for concrete interaction domains, and discusses its implementation within a prototype spoken dialogue system.
Keywords: Attentional information | Cognition | Focus tree | Human-machine interaction | Utterance processing
Publisher: Springer Link
Project: Design of Robot as Assistive Technology in Treatement of Children with Developmental Disorders 
Development of Dialogue Systems for Serbian and Other South Slavic Languages 

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