Vincent Blondel

Learn More
The focused organization theory of social ties proposes that the structure of human social networks can be arranged around extra-network foci, which can include shared physical spaces such as homes, workplaces, restaurants, and so on. Until now, this has been difficult to investigate on a large scale, but the huge volume of data available from online(More)
This paper presents a novel meta algorithm, Partition-Merge (PM), which takes existing centralized algorithms for graph computation and makes them distributed and faster. In a nutshell, PM divides the graph into small subgraphs using our novel randomized partitioning scheme, runs the centralized algorithm on each partition separately, and then stitches the(More)
We introduce an improved model for human communication patterns, in particular for arrival times of Twitter tweets. We introduce a concept that allows to capture the dependence of subsequent waiting times between such events. The presence of such dependence not only matches intuition, but the data shows a significantly better fit for the new model, thus(More)
  • 1