NASTIA : Negotiating Appointment Setting Interface

Layla El Asri 1, 2 Rémi Lemonnier 2 Romain Laroche 2 Hatim Khouzaimi 3, 2 Olivier Pietquin 4
1 UMI2958 - Georgia Tech - CNRS [Metz]
2 Orange Labs [Issy les Moulineaux]
3 LIA - Laboratoire Informatique d'Avignon
4 LIFL - Laboratoire d'Informatique Fondamentale de Lille
Abstract : This paper describes a French Spoken Dialogue System (SDS) named NASTIA (Negotiating Appointment SeTting InterfAce). Appointment scheduling is a hybrid task halfway between slot-filling and negotiation. NASTIA implements three different negotiation strategies. These strategies were tested on 1734 dialogues with 385 users who interacted at most 5 times with the SDS and gave a rating on a scale of 1 to 10 for each dialogue. Previous appointment scheduling systems were evaluated with the same experimental protocol. NASTIA is different from these systems in that it can adapt its strategy during the dialogue. The highest system task completion rate with these systems was 81% whereas NASTIA had an 88% average and its best performing strategy even reached 92%. This strategy also significantly outperformed previous systems in terms of overall user rating with an average of 8.28 against 7.40. The experiment also enabled highlighting global recommendations for building spoken dialogue systems.
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Communication dans un congrès
9th International Conference on Language Resources and Evaluation (LREC 2014), May 2014, Reykjavik, Iceland
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https://hal.inria.fr/hal-01107492
Contributeur : Olivier Pietquin <>
Soumis le : mardi 20 janvier 2015 - 18:20:43
Dernière modification le : mardi 5 mars 2019 - 01:39:25

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  • HAL Id : hal-01107492, version 1

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SUPELEC | INRIA | UNIV-FCOMTE | UNIV-LILLE3 | UMI-GTL

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Layla El Asri, Rémi Lemonnier, Romain Laroche, Hatim Khouzaimi, Olivier Pietquin. NASTIA : Negotiating Appointment Setting Interface. 9th International Conference on Language Resources and Evaluation (LREC 2014), May 2014, Reykjavik, Iceland. 〈hal-01107492〉

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