The propagations of diseases, behaviors and information in real systems are rarely
independent of each other, but they are coevolving with strong interactions. To uncover the …

Recommendation systems have drawn an increasingly broad range of interest since early
1990s. Recently, a search with the query of “recommendation systems” on Google Scholar …

Bursty dynamics is a common temporal property of various complex systems in nature but it
also characterises the dynamics of human actions and interactions. At the …

Interacting human activities underlie the patterns of many social, technological, and
economic phenomena. Here we present clear empirical evidence from Short Message …

The probability distribution of number of ties of an individual in a social network follows a
scale-free power-law. However, how this distribution arises has not been conclusively …

Even though people in our contemporary technological society are depending on
communication, our understanding of the underlying laws of human communicational …

The temporal communication patterns of human individuals are known to be
inhomogeneous or bursty, which is reflected as heavy tail behavior in the inter-event time …

The increasing ubiquity of Internet access and the frequency with which people interact with
it raise the possibility of using the Web to better observe, understand, and monitor several …

Background Zipf's law and Heaps' law are observed in disparate complex systems. Of
particular interests, these two laws often appear together. Many theoretical models and …

The influence of microblog on information transmission is becoming more and more
obvious. By characterizing the behavior of following and being followed as out-degree and …