2nd IJCAI Workshop on
August 5, 2001, Seattle
Officially endorsed by SIGDial

Important Dates | Submission Procedure | Organizing Committee |
Workshop program | Further information |

Description of the Workshop

The first workshop "Knowledge and Reasoning in Practical Dialogue Systems" was organised in the IJCAI in Stockholm in 1999. The workshop was a success and the seleceted contributions are in the process of coming out as a special issue in the ETAI series (Electronic Transactions on AI, editor-in-chief: Eric Sandevall and Elisabet Andre).

The second workshop will continue along the same lines. The topic of dialogue systems and the type and management of their knowledge is becoming increasingly important not only for applications utilizing spoken natural language interaction but also for applications that allow interaction with several modalities and especially in real environments where several other information sources must be coordinated.

The workshop will especially concentrate on multimodal interfaces, which in the past five or ten years have seen a growing interest. Providing systems with multimodal behaviour is seen as a way of allowing for more natural human-machine communication, but it also has applications in new areas like robotics, text mining, and interaction for disabled and mobile communication.

Multimodal dialogue systems can facilitate communication since the interpretation of the communicative acts can be based on input from different modality devices and errors in one channel can be compensated by the information coming from another channel. On the other hand, the use of additional modalities is also likely to introduce ambiguities and uncertainty, and thus multimodality puts heavy demand on flexible interaction modelling. The need to merge input from different sources requires extensive reasoning capabilities both in understanding and responding to partial, erroneous, multi-channel input. The workshop focuses especially on these aspects: the coordination and integration of multimodal inputs and the ways in which multimodal inputs reinforce and complement each other, and the role of dialogue in multimodal interaction. An important issue is also the representation of multimodal inputs, and it can be mentioned that last year the W3C initiative has issued a document on Voice Markup Languages including requirements for standards concerning multimodal input and output (http://www.w3.org/TR/voice-dialog-reqs).

The following topics are of primary interest to the workshop:

This workshop aims at studying the need and application of different knowledge resources and their coordination in multimodal dialogue systems. To promote discussions we encourage critical, comparative and provocative papers that relate theoretical and practical work e.g., by assessing the relative merits of different approaches, or reporting successes and failures in implementing and integrating various modules.

Who should attend

This workshop aims at bringing together researchers and practitioners that work on the development of communication models that support robust and efficient interaction in natural language, both for commercial dialogue systems and in basic research.

It should be of interest also for anyone studying dialogue and multimodal interfaces and how to coordinate different information sources. This involves theoretical as well as practical research, e.g. empirical evaluations of usability, formalization of dialogue phenomena and development of intelligent interfaces for various applictions, not excluding such areas as robotics.

The workshop will encourage the participation of both system builders and theoretically oriented researchers, thus creating a forum for discussion across vocational and disciplinary borders. While taking practical applications and implemented dialogue systems as our point of departure, we emphasize the potential contributions of theoretical and empirical research: applications are the best testbeds for evaluating the usefulness and originality of theories and ideas. There is a certain lack of communication between theorists and system builders, and the workshop aims at creating an atmosphere that allows for a productive interaction between these two groups.

Workshop format

The workshop will be kept small, with a maximum of 40 participants. Preference will be given to active participants selected on the basis of their submitted papers.
According to IJCAI rules, all workshop attendees must register for the main conference.

Each paper will be given ample time for discussion, more than what is customary at a conference. As said above, we encourage contributions of a critical or comparative nature that provide fuel for discussion. We also invite people to share their experiences of implementing and coordinating knowledge modules in their dialogue systems, and integrating dialogue components to other applications.

Workshop program


Potential participants are invited to submit extended abstracts on the topics outlined above. Submissions should be no longer than 6 (six) pages exclusive of references, single spaced, and be in line with the IJCAI-style.

Electronic submissions (in postscript format) should be sent to Jan Alexandersson at: jan.alexandersson@dfki.de
Alternatively, three hardcopies can be mailed to the corresponding address below.

Jan Alexandersson
German Research Center for Artificial Intelligence, DFKI GmbH
Stuhlsatzenhausweg 3
66 123 Saarbrücken

The accepted papers will be published in the workshop proceedings which will be distributed to each participant.

Important dates

First call for papers: 1 December, 2000

Second call for papers: 15 January, 2001


Deadline for submission of papers: 9 March, 2001

Notification of acceptance: 3 April, 2001

Camera-ready paper for the workshop notes: 24 April, 2001

Workshop: 5 August, 2001

Program Committee

Anton Nijholt, Univeristy of Twente, The Netherlands
Laila Dybkjaer, Odense University, Denmark
David Novick, University of Texas at El Paso, US
Paul Heisterkamp, Daimler-Chrysler Research Center Ulm, Germany
Yasuhiro Katagiri, ATR, Japan
Diane Litman, ATT Labs Research, US
Sharon Oviatt, Oregon Graduate Institute, US
Staffan Larsson, Göteborg University, Sweden
Marc Swerts, IPO, CNTS, Antwerp University, The Netherlands
Nils Dahlbäck, Linköping University, Sweden
Ingrid Zukerman, Monash University, Australia

Organizing Committee

Lars Ahrenberg (Co-chair)
Department of Computer and Information Science
Linköping University
S-581 83 Linköping, Sweden
tel: +46 13 282422
fax: +46 13 142231
email: lah@ida.liu.se
Jan Alexandersson (Co-chair)
German Research Center for Artificial Intelligence, DFKI GmbH
Stuhlsatzenhausweg 3
66 123 Saarbrücken
tel: +49-681-3025347
fax: +49-681-3025341
email: jan.alexandersson@dfki.de
Kristiina Jokinen (Chair)
Media Lab,University of Art and Design Helsinki UIAH
Hämeentie 135 C
FIN-00530 Helsinki, Finland
tel: +358-9-7563-0269
fax: +358-9-7563-0555
e-mail: Kristiina.Jokinen@uiah.fi
Arne Jönsson (Co-chair)
Department of Computer and Information Science
Linköping University
S-581 83 Linköping, Sweden
tel: +46 13 281717
fax: +46 13 142231
email: arnjo@ida.liu.se

Further information

Should you have any questions or need additional information on the workshop, please contact any of the organizing committee members by e-mail or at the addresses above.
Further information on the IJCAI-01 conference, including updated information on hotel and travel information, can be obtained from
the IJCAI home page.
Updated information on this workshop and the final papers will be made available via the workshop home page.