Abstract: A system and method for delegating a user authentication process for a networked application to an authentication proxy. A networked application may request a user to provide authentication information in order to access the application. Upon receiving this authentication information from the user, the client side of the networked application sends the information to the server side of the networked application. The server side of the application may then determine an appropriate authentication agent associated with the user to delegate the authentication process to. For example, for each application user, the server side of the application may maintain information associated with the user, such as the user's employer. The application may then match this employer information to an authentication agent running in the employer's network domain, and the authentication process may then be delegated to this authentication agent.

Abstract: Separate computer systems may participate in a Health Data Network (HDN) such that the computer systems are linked so as to share various types of healthcare-related information. The shared information may include patient record information. The integration of the patient record information is accomplished by maintaining a Global Master Patient Index (GMPI). Such a GMPI may integrate patient record information used by multiple healthcare organizations, facilities, or businesses. Such a GMPI may also integrate patient record information for a single business having multiple sites or computer systems, e.g., a large hospital.

Abstract: An intelligent Query Engine (IQE) system automatically develops multiple information spaces in which different types of real-world objects (e.g., documents, users, products) can be represented. Machine learning techniques are used to facilitate automated emergence of information spaces in which objects are represented as vectors of real numbers. The system then delivers information to users based upon similarity measures applied to the representation of the objects in these information spaces. The system simultaneously classifies documents, users, products, and other objects. Documents are managed by collators that act as classifiers of overlapping portions of the database of documents. Collators evolve to meet the demands for information delivery expressed by user feedback. Liaisons act on the behalf of users to elicit information from the population of collators. This information is then presented to users upon logging into the system via Internet or another communication channel.