Before revision:  However, prior research has demonstrated that ranking algorithms employed by these platforms are prone to a variety of undesirable biases . To address this problem, fair ranking algorithms (e.g., Det-Greedy) which increase exposure of underrepresented candidates have been proposed in recent literature .
After revision:  However, prior research has demonstrated that ranking algorithms employed by these platforms are prone to a variety of undesirable biases , leading to the proposal of fair ranking algorithms (e.g., Det-Greedy) which increase exposure of underrepresented candidates have been proposed in recent literature .