Enforcing category diversity
First Claim
1. A computer-implemented method comprising:
- receiving a search query from a computing device;
identifying multiple entities responsive to the search query, each of the multiple entities being associated with a respective relevance score, where the multiple entities are associated with multiple different categories;
determining that a top N ranked entities according to relevance scores includes more than a predetermined number of entities associated with a particular category of the multiple different categories, wherein N is a positive integer that is less than or equal to a count of the multiple entities;
in response to determining that a top N ranked entities according to relevance scores includes more than the predetermined number of entities associated with the particular category, scaling the respective relevance score associated with one or more of the multiple entities by increasing the relevance score of a top most ranked entity associated with the particular category according to both a scaling factor that varies for entities within the particular category and the relevance scores relative to the relevance score of another entity associated with the particular category;
after scaling the respective relevance score associated with one or more of the multiple entities by increasing the relevance score of the top most ranked entity associated with the particular category according to both the scaling factor that varies for entities within the particular category and the relevance scores relative to the relevance score of the another entity associated with the particular category, ranking the multiple entities associated with the multiple different categories based on the relevance scores including the respective relevance score that is scaled; and
providing, to the computing device, data that identifies two or more of the multiple entities, as ranked according to the relevance scores, for display on the computing device as search results that are responsive to the search query.
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Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for enforcing the category diversity or sub-category diversity of POIs that are identified in response to a local search. According to one implementation, a method includes receiving a request to identify points of interest (POIs), obtaining data identifying (i) candidate points of interest (POIs) that satisfy the request, (ii) a respective category associated with each candidate POI, and (iii) a non-scaled score associated with each candidate POI, and ranking, for each of one or more of the categories, the candidate POIs associated with the category, based on the respective non-scaled scores. The method also includes scaling, for each of the one or more categories, the non-scaled scores of the ranked candidate POIs associated with the category, ranking the candidate POIs using the scaled scores, for the candidate POIs that are associated with the one or more categories, and the non-scaled scores, for the candidate POIs that are not associated with the one or more categories, and providing data that identifies two or more of the candidate POIs, as ranked according to the scaled scores and the non-scaled scores.
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Citations
17 Claims
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1. A computer-implemented method comprising:
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receiving a search query from a computing device; identifying multiple entities responsive to the search query, each of the multiple entities being associated with a respective relevance score, where the multiple entities are associated with multiple different categories; determining that a top N ranked entities according to relevance scores includes more than a predetermined number of entities associated with a particular category of the multiple different categories, wherein N is a positive integer that is less than or equal to a count of the multiple entities; in response to determining that a top N ranked entities according to relevance scores includes more than the predetermined number of entities associated with the particular category, scaling the respective relevance score associated with one or more of the multiple entities by increasing the relevance score of a top most ranked entity associated with the particular category according to both a scaling factor that varies for entities within the particular category and the relevance scores relative to the relevance score of another entity associated with the particular category; after scaling the respective relevance score associated with one or more of the multiple entities by increasing the relevance score of the top most ranked entity associated with the particular category according to both the scaling factor that varies for entities within the particular category and the relevance scores relative to the relevance score of the another entity associated with the particular category, ranking the multiple entities associated with the multiple different categories based on the relevance scores including the respective relevance score that is scaled; and providing, to the computing device, data that identifies two or more of the multiple entities, as ranked according to the relevance scores, for display on the computing device as search results that are responsive to the search query. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer-readable storage device having stored thereon instructions, which, when executed by a computer, cause the computer to perform operations comprising:
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receiving a search query from a computing device; identifying multiple entities responsive to the search query, each of the multiple entities being associated with a respective relevance score, where the multiple entities are associated with multiple different categories; determining that a top N ranked entities according to relevance scores includes more than a predetermined number of entities associated with a particular category of the multiple different categories, wherein N is a positive integer that is less than or equal to a count of the multiple entities; in response to determining that a top N ranked entities according to relevance scores includes more than the predetermined number of entities associated with the particular category, scaling the respective relevance score associated with one or more of the multiple entities by increasing the relevance score of a top most ranked entity associated with the particular category according to both a scaling factor that varies for entities within the particular category and the relevance scores relative to the relevance score of another entity associated with the particular category; after scaling the respective relevance score associated with one or more of the multiple entities by increasing the relevance score of the top most ranked entity associated with the particular category according to both the scaling factor that varies for entities within the particular category and the relevance scores relative to the relevance score of the another entity associated with the particular category, ranking the multiple entities associated with the multiple different categories based on the relevance scores including the respective relevance score that is scaled; and providing, to the computing device, data that identifies two or more of the multiple entities, as ranked according to the relevance scores, for display on the computing device as search results that are responsive to the search query. - View Dependent Claims (11, 12, 13, 14)
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15. A system comprising:
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one or more computers; and a computer-readable storage device having stored thereon instructions that, when executed by the one or more computers, cause the one or more computers to perform operations comprising; receiving a search query from a computing device; identifying multiple entities responsive to the search query, each of the multiple entities being associated with a respective relevance score, where the multiple entities are associated with multiple different categories; determining that a top N ranked entities according to relevance scores includes more than a predetermined number of entities associated with a particular category of the multiple different categories, wherein N is a positive integer that is less than or equal to a count of the multiple entities; in response to determining that a top N ranked entities according to relevance scores includes more than the predetermined number of entities associated with the particular category, scaling the respective relevance score associated with one or more of the multiple entities by increasing the relevance score of a top most ranked entity associated with the particular category according to both a scaling factor that varies for entities within the particular category and the relevance scores relative to the relevance score of another entity associated with the particular category; after scaling the respective relevance score associated with one or more of the multiple entities by increasing the relevance score of the top most ranked entity associated with the particular category according to both the scaling factor that varies for entities within the particular category and the relevance scores relative to the relevance score of the another entity associated with the particular category, ranking the multiple entities associated with the multiple different categories based on the relevance scores including the respective relevance score that is scaled; and providing, to the computing device, data that identifies two or more of the multiple entities, as ranked according to the relevance scores, for display on the computing device as search results that are responsive to the search query. - View Dependent Claims (16, 17)
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Specification