Abstract: In an embodiment, a computer-based service security system receives a communication such as a query. The system processes that query in a server, which may be referred to as a lead server, and creates a plurality of copies of that lead server. The query is transferred to the plurality of copies of the lead server when the query did not cause a problem in the lead server. The query is transferred to a learning server when the query caused a problem in the lead server. The lead server is replaced by one of the copies of the lead server when the query caused a problem on the lead server.

Abstract: In recognizing plans of agents, the actions of the agents are observed. Based on the observed actions and plans stored in a plan library, a pending set of actions that are pending execution by the agent are generated. Explanations for these pending actions are then generated. The plan library contains plans, the plans stored in the plan library include typed variables and/or temporal constraints, and the explanations depend on the typed variables and/or temporal constraints. Probabilities as to the likelihood that the explanations represent at least one actual plan of the agent may be computed, and at least one of the explanations may be recognized as the actual plan of the agent based on the computed probabilities.

Abstract: In an embodiment, a computer-based service security system receives a communication such as a query. The system processes that query in a server, which may be referred to as a lead server, and creates a plurality of copies of that lead server. The query is transferred to the plurality of copies of the lead server when the query did not cause a problem in the lead server. The query is transferred to a learning server when the query caused a problem in the lead server. The lead server is replaced by one of the copies of the lead server when the query caused a problem on the lead server.