What are some papers that have used NLP on a corpus of voice recorder conversations?
Are there any offline dictionaries to be used by artificial intelligence (chatbots)?
Here be apples and oranges…. Generally speaking, there are two different components. One is the speech recognition component, and the other is the natural language understanding component. The speech recognition component converts speech into text, and feeds text into the natural language understanding component.
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Wikipedia lists a variety of English Corpora, such as the Spoken English Corpus; however, to my knowledge, spoken language corpora as such are generally not applied to AI. (There is evidence of older research that tried going in that direction.)
What are some papers that have used NLP on someone’s corpus of IM/chat conversations?
There is a field of study known as Discourse analysis (see also Category:Discourse analysis), which encompasses Conversation analysis, Dialog acts, and Speech acts.