Dear Mohammed,
- You can email the authors of this article for a copy of their SMS/ CHAT corpus.
https://www.ldc.upenn.edu/sites/www.ldc.upenn.edu/files/emnlp2014-transliteration-aribizi-into-arabic-orthography.pdf
- There is also the Arabic Online Commentary Dataset:
https://www.cs.jhu.edu/~ccb/publications/arabic-dialect-corpus.pdf
- The twitter Dataset for Arabic sentiment analysis :
https://archive.ics.uci.edu/ml/datasets/Twitter+Data+set+for+Arabic+Sentiment+Analysis
The best thing you prepare your own Arabic chat dataset and make it available for reproducible research.
Hope this helps.
Thank you Okba,
The first reference is not free, second one is down and last one is not in chatting.
You might contact the authors of this paper, they have built a corpus from wikipedia talk pages and forums, annotated for sentiment analysis :
http://www.lrec-conf.org/proceedings/lrec2012/pdf/1057_Paper.pdf
I know the Gigaword Arabic data set but is extracted from news related data not chat data, but it may help you.
https://archive.ics.uci.edu/ml/datasets/Twitter+Data+set+for+Arabic+Sentiment+Analysis#
Dear Mr. Saad Khalifa , I think Mr. Kiet Van Nguyen sent a set of datasets, more than 21 datasets for Arabic. Try them.
Regards
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