Predictive performance of collaborative filtering model
First Claim
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1. A method comprising:
- for each first entity of a subset of a plurality of first entities, estimating by a computing device an expected improvement of a predictive performance of a collaborative filtering model if additional ratings of the first entity in relation to a plurality of second entities were obtained;
selecting by a computing device particular first entities from the subset of the first entities of which to obtain the additional ratings in relation to the second entities, based at least on the expected improvements that have been determined; and
,obtaining the additional ratings of the particular first entities in relation to the second entities.
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Abstract
For each first entity of a subset of a number of first entities, an expected improvement of a predictive performance of a collaborative filtering model if additional ratings of the first entity in relation to a plurality of second entities were obtained is estimated. Particular first entities from the subset of the first entities of which to obtain the additional ratings in relation to the second entities are selected based at least on the expected improvements that have been determined. The additional ratings of the particular first entities in relation to the second entities are obtained.
21 Citations
15 Claims
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1. A method comprising:
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for each first entity of a subset of a plurality of first entities, estimating by a computing device an expected improvement of a predictive performance of a collaborative filtering model if additional ratings of the first entity in relation to a plurality of second entities were obtained; selecting by a computing device particular first entities from the subset of the first entities of which to obtain the additional ratings in relation to the second entities, based at least on the expected improvements that have been determined; and
,obtaining the additional ratings of the particular first entities in relation to the second entities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system comprising:
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a processor; a computer-readable data storage medium to store one or more computer programs that are executable by the processor; a first component implemented by the computer programs to, for each first entity of a subset of a plurality of first entities, estimate an expected improvement of a predictive performance of a collaborative filtering model if additional ratings of the first entity in relation to a plurality of second entities were obtained; a second component implemented by the computer programs to select particular first entities from the subset of the first entities of which to obtain the additional ratings in relation to the second entities, based at least on the expected improvements that have been determined; and
,a third component implemented by the computer programs to obtain the additional ratings of the particular first entities in relation to the second entities.
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15. A computer-readable data storage medium having one or more computer programs stored thereon, wherein execution of the computer programs by a processor causes a method to be performed, the method comprising:
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for each first entity of a subset of a plurality of first entities, estimating an expected improvement of a predictive performance of a collaborative filtering model if additional ratings of the first entity in relation to a plurality of second entities were obtained; selecting particular first entities from the subset of the first entities of which to obtain the additional ratings in relation to the second entities, based at least on the expected improvements that have been determined; and
,obtaining the additional ratings of the particular first entities in relation to the second entities.
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Specification