Anyone who's ever tried to build distributed applications (dApps) on the (Ethereum) blockchain would concur: Although blockchains are conceptually quite close to databases, querying databases feels ...

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 ...

Twitter, Vine, Voxer, MessageMe. Facebook has repeatedly cut off competitors from its feature for finding your Facebook friends on their apps… after jumpstarting its own social graph by convincing ...

The 2-domination number γ₂(G) of a graph G is the minimum cardinality of a set S ⊆ V(G) such that every vertex from V(G) \ S is adjacent to at least two vertices in S. The annihilation number a(G) is ...