On February 21, 2014, Hugo Serrano of the Department of Computer Science at the Florida Institute of Technology gave a seminar titled How Predictable are We? An investigation into human mobility modeling. He introduced this topic with five models of human mobility: gravity model, random walks, continuous-time random walking, Levy flight, and individual mobility model. At the beginning, he introduced that human mobility research is important for traffic prediction, urban planning furthermore, epidemic modeling and human mobility analysis can be divided into two levels: population level and individual level. The previous data on human mobility was mainly at the population level, which lacks individual-level spatio-temporal data, because these studies were researched by social scientists. Then he told us about the Migration Laws proposed by Ravenstein in 1885: migrants from the surrounding areas are attracted by the rapid growth of cities, short-distance movement is the best choice, long-distance movement is due to large shopping centers and industrial. , residing in rural areas is more...