https://www.sciencedaily.com/releases/2020/03/200327122312.htm

"Whether in the IoT or on social networks, there are many circumstances where old information is circulating and could cause problems -- whether it's old security data or a misleading rumor," says Wenye Wang, co-author of a paper on the work and a professor of electrical and computer engineering at NC State. "Our work here includes a new model and related analysis of how new data can displace old data in these networks."

"Ultimately, our work can be used to determine the best places to inject new data into a network so that the old data can be eliminated faster," says Jie Wang, a postdoctoral researcher at NC State and first author of the paper.