University of Minnesota

Bradley N Miller

Joseph A Konstan

John T Riedl

A prediction information system for use between a user and an electronic rating broker is provided. The prediction information system includes a user interface for presenting items as information to the user. An input mechanism receives data input by the user. A processor in cooperation with the user interface and the input mechanism performs an algorithm for: obtaining a particular implicit measure, generating an implicit rating as a function of the particular implicit measure, submitting the implicit rating to the rating broker, receiving prediction results for other items from the rating broker, and presenting the prediction results to the user through the user interface. In addition, a method for operating an electronic rating broker on a computer system in order to provide prediction information to a user based on implicit ratings is provided. Also, a storage device readable by a computer system for implementing this method is provided.

System, method, and article of manufacture for utilizing implicit

An electronic rating broker is provided. The rating broker includes an input mechanism for obtaining an implicit measure concerning items presented to a user. A processor is operatively coupled to the input mechanism and an output device to cooperatively perform several functions. These functions include generating an implicit rating as a function of the implicit measure using a receiver operating curve (ROC). The output device is provided the implicit rating by the processor. In addition, a method is provided for operating an electronic rating broker on a computer system in order to provide an implicit rating generated with an ROC. Also, a storage device readable by a computer system for implementing this method is provided.

System, method, and article of manufacture for generating implicit

An electronic information system is provided for determining predictive utility of prediction techniques in ascertaining which items are valued. The information system includes an input mechanism for obtaining a set of measurements of actual value of items presented to a user. The items presented to the user are derived from a plurality of items by utilizing predictions from a prediction technique. A processor is operatively coupled to the input mechanism to generate a quality metric receiver operating curve (ROC) from the set of measurements which corresponds to a measure of effectiveness of the prediction technique in predicting which items are valued by the user. In addition, a method is provided for operating this electronic information system. Also, a storage device readable by a computer system for implementing this method is provided.

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Plymouth, MN, United States of America

Bradley N Miller