System and method for managing document retention of shared documents
First Claim
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1. A method for managing retention of a document submitted to a recommender system, comprising:
- analyzing a document'"'"'s substance to compute a lifetime of the document;
defining a visibility value that estimates the document'"'"'s importance to the users of the recommender system;
determining over a time interval;
(a) whether higher quality siblings of the document exist in the recommender system, and (b) whether a user action or an event has occurred;
adjusting the visibility value of the document in the recommender system as a function of;
(a) the user action when the user action occurs over the time interval, and (b) the document'"'"'s substance when an event occurs over the time interval;
decreasing the visibility value of the document in the recommender system as a function of the document'"'"'s substance when no user action or event occurs over the time interval, the visibility value thereby decreasing continuously over the time interval within the computed lifetime; and
removing the document from the recommender system when;
(a) higher quality siblings of the document exist in the recommender system, or (b) the visibility value of the document in the recommender system is less than a threshold value.
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Abstract
The visibility of shared documents in a collaborative recommender system is managed by analyzing both the document'"'"'s substance and user actions that are performed on the document. The document'"'"'s substance includes both metadata and content. User actions include both user ratings and semantic actions. The visibility of the shared documents is updated when either a user action or an event occurs.
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Citations
26 Claims
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1. A method for managing retention of a document submitted to a recommender system, comprising:
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analyzing a document'"'"'s substance to compute a lifetime of the document; defining a visibility value that estimates the document'"'"'s importance to the users of the recommender system; determining over a time interval;
(a) whether higher quality siblings of the document exist in the recommender system, and (b) whether a user action or an event has occurred;adjusting the visibility value of the document in the recommender system as a function of;
(a) the user action when the user action occurs over the time interval, and (b) the document'"'"'s substance when an event occurs over the time interval;decreasing the visibility value of the document in the recommender system as a function of the document'"'"'s substance when no user action or event occurs over the time interval, the visibility value thereby decreasing continuously over the time interval within the computed lifetime; and removing the document from the recommender system when;
(a) higher quality siblings of the document exist in the recommender system, or (b) the visibility value of the document in the recommender system is less than a threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for managing retention of a document submitted to a recommender system, comprising:
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means for analyzing a document'"'"'s substance to compute a lifetime of the document; means for defining a visibility value that estimates the document'"'"'s importance to the users of the recommender system; means for determining over a time interval;
(a) whether higher quality siblings of the document exist in the recommender system, and (b) whether a user action or event occurred;means for adjusting the visibility value of the document in the recommender system as a function of;
(a) the user action when the user action occurs over the time interval, and (b) the document'"'"'s substance when the event occurs over the time interval;means for decreasing the visibility value of the document in the recommender system as a function of the document'"'"'s substance when no user action or event occurs over the time interval, the visibility value thereby decreasing continuously over the time interval within the computed lifetime; and means for removing the document from the recommender system when;
(a) higher quality siblings of the document exist in the recommender system, or (b) the visibility value of the document in the recommender system is less than a threshold value. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An article of manufacture, comprising:
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a storage medium; and program instructions stored on the storage medium for managing retention of a document submitted to a recommender system communicating with an importance predictor having a processor;
the processor in executing the program instructions;analyzing a document'"'"'s substance to compute a lifetime of the document; defining a forgetfulness value that describes a document'"'"'s importance to users of the recommender system, the forgetfulness value being responsive to a user action or an event; defining a visibility value that estimates the document'"'"'s importance to the users of the recommender system, the visibility value being a function of the forgetfulness value; determining over a time interval;
(a) whether higher quality siblings of the document exist in the recommender system, and (b) whether the user action or the event occurred;adjusting the forgetfulness value of the document in the recommender system as a function of the document'"'"'s substance; adjusting the visibility value of the document in the recommender system as a function of;
(a) a user action when the user action occurs over the time interval, and (b) the document'"'"'s substance when an event occurs over the time interval;decreasing the visibility value of the document in the recommender system as a function of the document'"'"'s substance when no user action or event occurs over the time interval, the visibility value thereby decreasing continuously over the time interval within the computed lifetime; and removing the document from the recommender system when;
(a) higher quality siblings of the document exist in the recommender system, or (b) the visibility value of the document in the recommender system is less than a threshold value. - View Dependent Claims (25, 26)
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Specification