2
votes
1answer
103 views

Selecting and Grouping a set of points in a 2D plane

I am currently working on a project that requires to solve the following problem: Let's say that each time a user access a specific resource on the network from his mobile device, a system stores his ...
6
votes
1answer
314 views

How to Characterize Clumps in a Large, Semi-Random Graph

Consider large (100,000+ vertices, say) graphs, which we think of as representing some population with edges representing some form of symmetric relation. They might be the Friend graph of Facebook, ...