An anonymous reader writes "Do you still think your online writing is, basically, anonymous? Think again! Research has it people put much of their personal traits into their writing, and computers may just be able to pick them up. That's at least what a recently announced competition on author identification (Given a document, who wrote it?) and author profiling (Given a document, what're its author's age and gender?) wants to find out. Alas, re-using other people's writing is no solution either; there's also a competition on plagiarism detection (Given a document, is it an original?). Wanna revisit your recent rants?"
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