Nec Laboratories America, Inc.

Nec Laboratories Amercia, Inc.

Xi Chen

Bing Bai

Yanjun Qi

Systems and methods are disclosed to perform preference learning on a set of documents includes receiving raw input features from the set of documents stored on a data storage device; generating polynomial combinations from the raw input features; generating one or more parameters; applying the parameters to one or more classifiers to generate outputs; determining a loss function and parameter gradients and updating parameters determining one or more sparse regularizing terms and updating the parameters; and expressing that one document is preferred over another in a search query and retrieving one or more documents responsive to the search query.

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Pittsburgh, IL, United States of America

Xi Chen