With increasing amounts of information available, modeling and predicting user preferences—for books or articles, for example—are becoming more important. We present a collaborative filtering model, ...

Stochastic block models (SBMs) serve as a fundamental probabilistic framework for generating and analysing network data with inherent community or modular structure. In these models, nodes are ...

Using unique investment-level data accounting for around 15,000 individual investments done by various types of investors in start-up companies over the periods from 2000 to 2014, we empirically ...

The Annals of Statistics, Vol. 44, No. 5 (October 2016), pp. 2252-2280 (29 pages) Recently, network analysis has gained more and more attention in statistics, as well as in computer science, ...