An analysis of tweets made by Australians shows which group of people posts sweet or rude remarks on the popular microblogging site.

The analysis showed that Sydney-based Twitter members post less than the average 5,000 tweets per minute by Aussies, they are the rudest tweeters, followed by Brisbane residents.

In contrast, those in Adelaide are the most affectionate and those in Canberra the most aggressive and sad.

The highest number of tweets was made by Melbourne residents, followed by Hobartians.

At an average 5,000 tweets per minute, Aussies have posted a total of 234 million messages on Twitter. At least 10 per cent of Australians are members of Twitter, of which 46 per cent are male and 54 per cent female.

The research, initiated by advertising agency The Works, was spearheaded by Dr Suresh Sood, a lecturer in Executive Education and researcher on social media at the University of Technology Sydney, Dr Benjamin Johnston, senior research associate of the university's Faculty of Engineering and Information Technology, and Ernest Edmonds, IT professor.

The three said they teamed up to create a mood map of Australia and to have a deeper understanding of the social media landscape.

"By aggregating and taking messages from Twitter, we have, for the first time, the ability to understand the mood or the way people are thinking at one moment in time. It gives us another dimension, a geographically based dimension, to understand the kind of storytellers that are in place, what kinds of stories are being told and how people are interacting with brands," Mr Sood said.

Mr Johnston collected and analysed the raw Twitter feeds and Mr Edmonds created the mood map. Mr Johnston bases his analysis on cue words that have emotional associations.

"This kind of processing of Twitter data is the first step towards using artificial intelligence to make our lives better. It's a stream, it's continuous event data, it's emotive and it's an interesting application for understanding life." Mr Johnston added.

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