Hierarchical decision fusion of recommender scores
First Claim
1. A method for providing hierarchical decision fusion of recommender scores, said method comprising the steps of:
- (a) providing a plurality of recommenders at a first level, said recommenders being grouped to at least one of a plurality of predetermined groups;
(b) providing a predetermined number of first level fusion centers for receiving an output from each of said recommenders from at least one particular group;
(c) outputting a decision by each one of said plurality of recommenders grouped in step (a) to a respective first level fusion center, wherein each decision provides a recommendation;
(d) each respective first level fusion center performing a first fusing step of the decisions output in step (c) by said recommenders from said at least one particular group;
(e) each respective first level fusion center outputting a first enhanced decision based on the fusion performed in step (d);
(f) providing a plurality of second level fusion centers for receiving the first enhanced decisions output from a group of said first level fusion centers;
(g) each respective second level fusion center performing a second fusing step of the first enhanced decisions received from the group of said first level fusion centers;
(h) each respective second level fusion center outputting a second enhanced decision; and
(i) outputting to a user a finally enhanced decision chosen from the enhanced decisions in step (h).
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Abstract
A method and system for providing hierarchical decision fusion of recommender scores, wherein at least two levels of fusion are provided. In a method, a plurality of recommenders at a first level are grouped according to topics of interest. A plurality of first level fusion centers receive a number of outputs from a predetermined number of recommenders. The first level fusion centers output a first enhanced decision level, and a series of second level fusion centers receive a predetermined number of the first enhanced decision, and a second fusing step occurs to result in a second enhanced decision level. The groups can be reading history, music, viewing history, purchasing history, and can be intermixed, so that the enhanced decision may recommend a particular movie based on both the ranking about movies and music.
83 Citations
21 Claims
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1. A method for providing hierarchical decision fusion of recommender scores, said method comprising the steps of:
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(a) providing a plurality of recommenders at a first level, said recommenders being grouped to at least one of a plurality of predetermined groups;
(b) providing a predetermined number of first level fusion centers for receiving an output from each of said recommenders from at least one particular group;
(c) outputting a decision by each one of said plurality of recommenders grouped in step (a) to a respective first level fusion center, wherein each decision provides a recommendation;
(d) each respective first level fusion center performing a first fusing step of the decisions output in step (c) by said recommenders from said at least one particular group;
(e) each respective first level fusion center outputting a first enhanced decision based on the fusion performed in step (d);
(f) providing a plurality of second level fusion centers for receiving the first enhanced decisions output from a group of said first level fusion centers;
(g) each respective second level fusion center performing a second fusing step of the first enhanced decisions received from the group of said first level fusion centers;
(h) each respective second level fusion center outputting a second enhanced decision; and
(i) outputting to a user a finally enhanced decision chosen from the enhanced decisions in step (h). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for hierarchical decision fusion of recommender scores, said system comprising:
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a central processing unit;
a memory in communication with said central processing unit;
a recommender module comprising fusion software for fusing recommendations of a predetermined number of groups;
means for outputting a recommendation to a user;
wherein said recommender module provides at least two levels of fusion, wherein a plurality of recommendations are fused at a first level to provide a plurality of first enhanced decisions, and said plurality of first enhanced decision are fused at a second level to provide a plurality of second enhanced decisions which are fewer in number than said first enhanced decisions. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification