Dating apps that allow users to filter their searches by race - or rely on algorithms that pair up people of the same race - reinforce racial divisions and biases, according to a new paper by Cornell University researchers. Researchers called for the apps to be redesigned, and for'racist' algorithms should be reprogrammed. Experts say that amid the huge rise in the usage of dating apps are meaning people are failing to meet diverse potential partners. Cornell researchers called for the apps to be redesigned, and for'racist' algorithms should be reprogrammed. The paper revealed how simple design decisions could decrease bias against people of all marginalized groups.