Karen Petrie is a British computer scientist specialising in the area of constraints programming.
She was named young IT practitioner of the year by the British Computer Society (BCS)[1] in 2004, for work she carried out whilst on placement at NASA.
She is currently a professor in the School of Science and Engineering at the University of Dundee.
[3] Petrie is responsible for an argument about sexist behaviour in gender-imbalanced groups called "The Petrie Multiplier",[4] which states that with a gender ratio of 1:r, women will receive r2 times as many sexist remarks as men.
Proving tight upper and lower bounds remains an open question.