Publication
Dialogue Act Classification in Team Communication for Robot Assisted Disaster Response
Tatiana Anikina; Ivana Kruijff-Korbayová
In: 20th Annual SIGdial Meeting on Discourse and Dialogue - Proceedings of the Conference. Annual SIGdial Meeting on Discourse and Dialogue (SIGdial-2019), 20th, September 11-13, Stockholm, Sweden, Pages 399-410, ISBN 978-1-950737-61-1, The Association of Computational Linguistics, 9/2019.
Abstract
We present the results we obtained on the classification of dialogue acts in a corpus of human-human team communication in the domain of robot-assisted disaster response. We annotated dialogue acts according to the ISO 24617-2 standard scheme and carried out experiments using the FastText linear classifier as well as several neural architectures, including feed-forward, recurrent and convolutional neural models with different types of embed- dings, context and attention mechanism. The best performance was achieved with a "Divide & Merge" architecture presented in the paper, using trainable GloVe embeddings and a struc- tured dialogue history. This model learns from the current utterance and the preceding context separately and then combines the two gener- ated representations. Average accuracy of 10- fold cross-validation is 79.8%, F-score 71.8%