US Patent 8626791 Predictive model caching

Methods, systems, and apparatus, including computer programs encoded on one or more computer storage devices, for caching predictive models are described. Records are obtained, each record including a time of a previously submitted predictive request and an identifier of a trained predictive model. A trained scheduling model is generated using the records as training data. A set of identifiers of trained predictive models are determined from a plurality of trained predictive models that are stored in a secondary memory of a computing system. The target time is inputted to the trained scheduling model. In response, a second predictive output is received that comprises the set of identifiers. A set of trained predictive models are obtained that correspond to the set of identifiers from the secondary memory. The set of trained predictive models are stored in a primary memory of the computing system.