Before revision:  Hence, we also introduce a novel strategy  to calculate experts' scores by using the extracted expert embedding vectors. The effectiveness of ExEm is validated through assessing its performance on multi-label classification, link prediction, and recommendation tasks .
After revision:  Hence, we also introduce a novel strategy to calculate experts' scores and recommend experts. At the end, we conduct extensive experiments to validate the effectiveness of ExEm is validated through assessing its performance on multi-label classification, link prediction, and recommendation tasks .