Dialog act: Difference between revisions
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In [[linguistics]] and in particular in [[natural language understanding]], a '''dialog act''' is an utterance, in the context of a conversational dialog, that serves a function in the dialog. Types of dialog acts include a question, a statement, or a request for action.<ref name="McTear2016">{{cite book |last1=McTear |first1=Michael |last2=Callejas |first2=Zoraida |last3=Griol |first3=David |title=The Conversational Interface: Talking to Smart Devices |date=2016 |publisher=Springer |isbn=9783319329673 |pages=162-166 |url=https://books.google.com/books?id=X_w0DAAAQBAJ&pg=PA164&dq=%22Dialog+act%22+-wikipedia&hl=en&sa=X&ved=0ahUKEwi8kqaEirHbAhVxFjQIHUPADJ0Q6AEILjAB#v=onepage&q=%22Dialog%20act%22%20-wikipedia&f=false |accessdate=31 May 2018 |language=en}}</ref> Dialog acts are a type of [[speech act]]. |
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A '''dialog act''' is a specialized [[speech act]]. For example, ''Question'' is a speech act, but ''Question_on_hotel'' is a dialog act. Dialog acts are different in different [[dialog systems]]. The number of speech acts are commonly recognized, and is stable around 10 or so, the number of dialog acts vary from systems to systems. In some systems,<ref> |
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Dialog act recognition, also known as spoken utterance classification, is an important part of spoken language understanding. AI inference models or statistical models are used to recognize and classify dialog acts.<ref name="McTear2016" /> |
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A [[dialog system]] typically includes a taxonomy of dialog types or ''tags'' that classify the different functions dialog acts can play. One study had 42 types of dialog act in their taxonomy.<ref> |
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</ref> Examples of types in this study include ''STATEMENT'', ''OPINION'', ''AGREEMENT/ACCEPT'', and ''YES-NO-QUESTION''. |
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</ref> the number of dialog acts can be up to 40. |
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The research on dialog acts have increased since 1999, after [[spoken dialog systems]] became commercial reality. |
The research on dialog acts have increased since 1999, after [[spoken dialog systems]] became commercial reality. |
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==List of dialog acts== |
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* Generic (speech acts) |
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**[[greeting]]s |
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**Meta Question: "What can I say?" |
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**[[yes-no question|Yes-No Question]] |
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**Statement |
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**Request |
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**[[wh-question|Wh-Question]] |
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* Domain specific |
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==Identify a dialog act== |
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* Script-based method |
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* Learning-based method |
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==References== |
==References== |
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[[Category:Philosophy of language]] |
[[Category:Philosophy of language]] |
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[[Category:Pragmatics]] |
[[Category:Pragmatics]] |
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Revision as of 23:51, 31 May 2018
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In linguistics and in particular in natural language understanding, a dialog act is an utterance, in the context of a conversational dialog, that serves a function in the dialog. Types of dialog acts include a question, a statement, or a request for action.[1] Dialog acts are a type of speech act.
Dialog act recognition, also known as spoken utterance classification, is an important part of spoken language understanding. AI inference models or statistical models are used to recognize and classify dialog acts.[1]
A dialog system typically includes a taxonomy of dialog types or tags that classify the different functions dialog acts can play. One study had 42 types of dialog act in their taxonomy.[2] Examples of types in this study include STATEMENT, OPINION, AGREEMENT/ACCEPT, and YES-NO-QUESTION.
The research on dialog acts have increased since 1999, after spoken dialog systems became commercial reality.
References
- ^ a b McTear, Michael; Callejas, Zoraida; Griol, David (2016). The Conversational Interface: Talking to Smart Devices. Springer. pp. 162–166. ISBN 9783319329673. Retrieved 31 May 2018.
- ^ Stolcke, Andreas; Ries, Klaus; Coccaro, Noah; Shriberg, Elizabeth; Bates, Rebecca; Jurafsky, Daniel; Taylor, Paul; Martin, Rachel; et al. (2000), "Dialogue Act Modeling for Automatic Tagging and Recognition of Conversational Speech" (PDF), Computational Linguistics, 26 (3): 339, doi:10.1162/089120100561737
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