Unsupervised Modeling of Dialog Acts in Asynchronous Conversations

Joty, Shafiq R.; Carenini, Giuseppe; Lin, Chin-Yew

doi:10.5591/978-1-57735-516-8/IJCAI11-303

Unsupervised Modeling of Dialog Acts in Asynchronous Conversations

Shafiq R. Joty, Giuseppe Carenini, Chin-Yew Lin

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Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence. Pages 1807-1812.

https://doi.org/10.5591/978-1-57735-516-8/IJCAI11-303

Abstract

We present unsupervised approaches to the problem of modeling dialog acts in asynchronous conversations; i.e., conversations where participants collaborate with each other at different times. In particular, we investigate a graph-theoretic deterministic framework and two probabilistic conversation models (i.e., HMM and HMM+Mix) for modeling dialog acts in emails and forums. We train and test our conversation models on (a) temporal order and (b) graph-structural order of the datasets. Empirical evaluation suggests (i) the graph-theoretic framework that relies on lexical and structural similarity metrics is not the right model for this task, (ii) conversation models perform better on the graph-structural order than the temporal order of the datasets and (iii) HMM+Mix is a better conversation model than the simple HMM model.

Shafiq R. Joty, Giuseppe Carenini, and Chin-Yew Lin. 2011. Unsupervised Modeling of Dialog Acts in Asynchronous Conversations. In Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence, IJCAI-11. IJCAI, 1807–1812. https://doi.org/10.5591/978-1-57735-516-8/IJCAI11-303

@inproceedings{ijcai2011p303,
  title     = {Unsupervised Modeling of Dialog Acts in Asynchronous Conversations},
  author    = {Joty, Shafiq R. and Carenini, Giuseppe and Lin, Chin-Yew},
  booktitle = {Proceedings of the Twenty-Second International Joint Conference on
               Artificial Intelligence, {IJCAI-11}},
  publisher = {AAAI Press/International Joint Conferences on Artificial Intelligence},
  editor    = {Toby Walsh},
  pages     = {1807--1812},
  year      = {2011},
  month     = {7},
  doi       = {10.5591/978-1-57735-516-8/IJCAI11-303},
  url       = {https://doi.org/10.5591/978-1-57735-516-8/IJCAI11-303},
}

TY  - CPAPER
TI  - Unsupervised Modeling of Dialog Acts in Asynchronous Conversations
AU  - Joty, Shafiq R.
AU  - Carenini, Giuseppe
AU  - Lin, Chin-Yew
T2  - Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence, IJCAI-11
PB  - AAAI Press/International Joint Conferences on Artificial Intelligence
PY  - 2011
SP  - 1807
EP  - 1812
DO  - 10.5591/978-1-57735-516-8/IJCAI11-303
UR  - https://doi.org/10.5591/978-1-57735-516-8/IJCAI11-303
ER  -