15. The computer-implemented system of claim 13 , wherein the targeted outcome includes fraud in connection with the transaction behavior.
13. A computer-implemented system having a processor that is responsive to program code, the system comprising: code to define a first subset of entities belonging to one or more entity classes; code to construct at least one historical profile for each entity in the subset of entities based on a set of possible outcomes of transaction behavior of each entity in the first subset of entities; based on the historical profiles, code to select a second subset of entities having transaction behavior associated with a transaction, the transaction behavior being predictive of at least one targeted outcome from the set of possible outcomes; code to redefine the first subset of entities with the second subset of entities; and code to monitor the historical profiles for the entities to find entities for which the behavior is so significantly different than normal as to indicate a high probability that the entity is involved in a fraud process that is to be reported to humans.