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Find out how the web sees you

A new data mining tool reveals how the online world interprets your name – but don't expect enlightenment

Are you an egosurfer, addicted to Googling your own name? If so, you should check out , which uses data-mining techniques to answer the question: “How does the internet see you?�

Devised by , a PhD student at the Massachusetts Institute of Technology’s Media Lab, Personas runs a Yahoo search on your name, extracting statements about you (such as ““) from the returns.

Words from these statements are then run through an algorithm called , which links them to 28 common topics defined by Zinman, including “online�, “travel�, “education� and “professional�.

The resulting personal visualisations are colourful but often perplexing. While most human observers clicking on would quickly realise that I am a science journalist, Personas consistently displays “education� and “management� as my dominant topics. The latter reflects my job title; while in the absence of a “science� category, “education� seems to be the default.

Personas can also make some clear errors – in my case by interpreting my name followed by the article title Is the biofuel dream over? as a statement: “Peter Aldhous is the biofuel dream…�

Mining accidents

If you have a common name, or share your name with someone more famous, the results will have even less personal relevance. When New Å®ÉúСÊÓÆµ news director Rowan Hooper ran his name through Personas, he got a profile dominated by “sportsâ€�, caused by references to the of the same name.

It may sound like Zinman has developed a rather useless web application – but that was exactly his point. Personas is part of an exhibit called , described as an “installation about living in a world overflowing with information and non-stop communication� and now showing at the MIT Museum in Cambridge.

Zinman describes Personas as “a critique on data mining�, intended to highlight the undue faith that some analysts place in results from computer analysis of large data sets. “It’s always presented so authoritatively,� he says, “when in reality what’s happening behind the scenes is controlled voodoo.�

Is it that a fair criticism? “It’s a fun project. However, data-mining researchers and professional analysts are well aware of the danger of finding false associations,� says , president of KDnuggets, a data-mining consultancy in Boston.

“Criticising data mining for some people’s inability to separate false associations from true ones is like criticising the web because there are many bad pages.�

Fair or not, Zinman has been overwhelmed by the response to his project, with comments coming in from all over the world. “It’s narcissistic in nature, and people like that – it’s their favourite subject,� he says.