Training, inference and user interface for guiding the caching of media content on local stores
First Claim
1. A system for storing information locally that is received from an information delivery system for viewing at a local system, comprising:
- a database system that logs selections of previously viewed information at a local system received from an information delivery system;
an inference system trained by the log selections of previously viewed information and that assigns values to selections in a recommendation list based on the previously viewed information, the inference system employs collaborative filtering techniques on a temporal history of the previously viewed information to assign values to selections in the recommendation list from a higher probability to a lower probability that a user of the system would prefer to view information corresponding to an available selection; and
a local storage system that stores selection information corresponding to the assigned values of the selections.
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Accused Products
Abstract
The present invention is related to a system and method of caching data employing probabilistic predictive techniques. The system and method has particular application to multimedia systems for providing local storage of a subset of available viewing selections by assigning a value to a selection and retaining selections in the cache depending on the value and size of the selection. The value assigned to an item can represent the time-independent likelihood that a user will review an item at some time in the future. An initial value of an item can be based on the user'"'"'s viewing habits, the user'"'"'s viewing habit over particular time segment (e.g., early morning, late morning, early afternoon, late afternoon, primetime, late night) and/or viewing habits of a group of user'"'"'s during a particular time segment. A value assigned to a selection dynamically changes according to a set of cache retention policies, where the value can be time-dependent functions that decay based on the class of the item, as determined by inference about the class or via a label associated with the item. A selections value may be reduced as the selection ages because a user is less likely to view the selection over time. Additionally, a value of a selection may change based on changes on a user'"'"'s viewing habits, changes in time segments or a user'"'"'s modification of the cache retention policies.
218 Citations
26 Claims
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1. A system for storing information locally that is received from an information delivery system for viewing at a local system, comprising:
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a database system that logs selections of previously viewed information at a local system received from an information delivery system;
an inference system trained by the log selections of previously viewed information and that assigns values to selections in a recommendation list based on the previously viewed information, the inference system employs collaborative filtering techniques on a temporal history of the previously viewed information to assign values to selections in the recommendation list from a higher probability to a lower probability that a user of the system would prefer to view information corresponding to an available selection; and
a local storage system that stores selection information corresponding to the assigned values of the selections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for determining user preferred content to be stored in a local storage system having definite limits, the user preferred content being received from an information delivery system for viewing at a local system, comprising:
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receiving a list of available selections;
assigning a value to each of the available selections comprising employing collaborative filtering techniques on a temporal history of previously viewed information and the list of available selections to determine a higher probability to a lower probability that a system user would prefer to view information corresponding to an available selection;
storing information relating to a corresponding selection in the local storage system for the available selections based on value of the selection until the limits of the local storage system is obtained;
dynamically adjusting the values of the available selections based on at least one cache retention policy; and
removing information from the storage medium as its value causes it to fall outside the limits of the storage medium. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for determining user preferred content to be stored in a local storage system having definite limits, the user preferred content being received from an information delivery system for viewing at a local system, comprising:
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means for receiving a list of available selections;
means for assigning a value to each of the available selections adapted to employ collaborative filtering techniques on a temporal history of previously viewed information and the list of available selections to determine a higher probability to a lower probability that a system user would prefer to view information corresponding to an available selection;
means for storing information relating to a corresponding selection in the local storage system for the available selections based on the assigned value until the limits of the local storage system is obtained;
means for dynamically adjusting the values of the available selections based on a utility of the selection; and
means for removing information from the storage medium as its value causes it to fall outside the limits of the storage medium. - View Dependent Claims (23, 24, 25, 26)
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Specification