Module Set_model

module Set_model: sig .. end

A distributed riak backed cache for set oriented probability models

The event type is polymorphic but depends on protobuf serialization (as well as show and ord). Use [@@deriving protobuf,show,ord] to easily support this with your own types.

Suppose we observe co-occurences of events A, B, C, and we want to estimate joint or conditional probabilities among them.

More concretely: If we observe [RED, GREEN], [RED], [RED, BLUE] then the following is true:

P(RED) = 1

P(RED|GREEN) = 1

P(BLUE) = 1/3

P(RED|BLUE) = 1

P(BLUE|GREEN) = 0

Complexity Overview:

The total number of sets we have to update given a new set of cardinality of L is O(2^L), A frequency count is maintained for each subset of which there are 2^L of them.

module type EVENT = Model_intf.EVENT

The event type for each element of a set.

module type EVENTS = Model_intf.EVENTS

The type holding a set of events

module type S = Model_intf.S

Represents a polymoprhic cache of event sets mapped to probabilities and expectations

module Make (Event : EVENT) : S  with type Events.Event.t = Event.t and module Events.Event = Event

Creates a concrete instance of an event set model cache for a given Event type