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A Two-Step Neural Dialog State Tracker for Task-Oriented Dialog Processing
Joint Authors
Park, Seong-Bae
Kim, A-Yeong
Song, Hyun-Je
Source
Computational Intelligence and Neuroscience
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-18
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Dialog state tracking in a spoken dialog system is the task that tracks the flow of a dialog and identifies accurately what a user wants from the utterance.
Since the success of a dialog is influenced by the ability of the system to catch the requirements of the user, accurate state tracking is important for spoken dialog systems.
This paper proposes a two-step neural dialog state tracker which is composed of an informativeness classifier and a neural tracker.
The informativeness classifier which is implemented by a CNN first filters out noninformative utterances in a dialog.
Then, the neural tracker estimates dialog states from the remaining informative utterances.
The tracker adopts the attention mechanism and the hierarchical softmax for its performance and fast training.
To prove the effectiveness of the proposed model, we do experiments on dialog state tracking in the human-human task-oriented dialogs with the standard DSTC4 data set.
Our experimental results prove the effectiveness of the proposed model by showing that the proposed model outperforms the neural trackers without the informativeness classifier, the attention mechanism, or the hierarchical softmax.
American Psychological Association (APA)
Kim, A-Yeong& Song, Hyun-Je& Park, Seong-Bae. 2018. A Two-Step Neural Dialog State Tracker for Task-Oriented Dialog Processing. Computational Intelligence and Neuroscience،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1130781
Modern Language Association (MLA)
Kim, A-Yeong…[et al.]. A Two-Step Neural Dialog State Tracker for Task-Oriented Dialog Processing. Computational Intelligence and Neuroscience No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1130781
American Medical Association (AMA)
Kim, A-Yeong& Song, Hyun-Je& Park, Seong-Bae. A Two-Step Neural Dialog State Tracker for Task-Oriented Dialog Processing. Computational Intelligence and Neuroscience. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1130781
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1130781