Abstract: A system and method analyzes queries in a computer network, and identifies problem-causing queries that could be harmful to the system. If a query does not match any queries in a database, the query is transmitted to its destination. If a query matches a query in the database, that query is blocked from transmission to the destination. If a query is transmitted to its destination, and it is later determined that query caused a problem on that destination, that query is added to the database of queries. In one embodiment, a query that does not cause any problems is written to a pool of current up-to-date backup databases that may be used if the main system goes down. In another embodiment, the system tests variants of a query that caused a problem at the destination to attempt to discover other queries that could cause a problem.

Abstract: A skeptical system protects an asset by monitoring commands of a user, predicting a plan of the user based on the monitored commands, inferring an actual plan from the predicted plan, receiving information related to an identity of the user, inferring an actual identity of the user from the information, assessing a threat based on the actual plan and the actual user identity, and selecting, from among a plurality of possible responses, a response that is appropriate to the assessed threat.

Abstract: A system and method for recognizing a goal of an actor in an environment by considering hypothesized unobserved actions. The method includes providing a plan library that includes a list of possible goals and corresponding plans. Actions of the actor are observed, and the occurrence of hypothesized unobserved actions are considered. Finally, one or more plans consistent with the observed actions and the consideration of hypothesized unobserved actions are identified.

Abstract: A skeptical system protects an asset by monitoring commands of a user, predicting a plan of the user based on the monitored commands, inferring an actual plan from the predicted plan, receiving information related to an identity of the user, inferring an actual identity of the user from the information, assessing a threat based on the actual plan and the actual user identity, and selecting, from among a plurality of possible responses, a response that is appropriate to the assessed threat.

Abstract: An automated system and method for monitoring and supporting and actor in an environment, such as a daily living environment. The system includes at least one sensor, at least one effector and a controller adapted to provide monitoring, situation assessment, response planning, and plan execution functions. In one preferred embodiment, the controller provides a layered architecture allowing multiple modules to interact and perform the desired monitoring and support functions.

Abstract: Embodiments of the present invention provide a system for automatically generating condition based activity prompts. The system comprises a controller and at least one sensor for monitoring an actor. The controller is adapted to receive sensor data from the sensor and determine whether to generate a condition based activity prompt based upon a comparison of the sensor data to predefined data. The condition based activity prompt is related to assisting the actor in performing a particular task, providing a reminder to the actor to perform a particular task, or providing a to-do list item to the actor.

Abstract: A plan recognition method is implemented by a processing system and includes monitoring actions of a user, recognizing a plan of the user based on the monitored actions, and recognizing an abandonment of the plan based on the monitored actions.

Abstract: A system and method for recognizing a goal of an actor in an environment by considering hypothesized unobserved actions. The method includes providing a plan library that includes a list of possible goals and corresponding plans. Actions of the actor are observed, and the occurrence of hypothesized unobserved actions are considered. Finally, one or more plans consistent with the observed actions and the consideration of hypothesized unobserved actions are identified.