Module goko::plugins::discrete::dirichlet

Dirichlet probability

We know that the users are quering based on what they want to know about. This has some geometric structure, especially for attackers. We have some prior knowlege about the queries, they should function similarly to the training set. Sections of data that are highly populated should have a higher likelyhood of being queried.

This plugin lets us simulate the unknown distribution of the queries of a user in a bayesian way. There may be more applications of this idea, but defending against attackers has been proven.

Structs

Dirichlet	Simple probability density function for where things go by count
GokoDirichlet	Stores the log probabilities for each node in the tree.