Modifying scoring data based on historical changes
First Claim
1. A computer-implemented method comprising:
- calculating a plurality of quality of result statistics for a first document as a search result for a first query, each of the quality of result statistics corresponding to a different respective time period;
calculating a plurality of time trend statistics, the time trend statistics estimating changes in the quality of result statistics over time, wherein each of the time trend statistics comprises a quality of result difference between a respective first quality of result statistic and a respective second quality of result statistic of the quality of result statistics;
generating a first modified quality of result statistic by modifying a first quality of result statistic for the first document as a search result for the first query by a factor, where the factor is based on, at least, a rate of change of the time trend statistics; and
providing the first modified quality of result statistic as an input to a document ranking process for the first document and the first query.
2 Assignments
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Accused Products
Abstract
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for modifying historical data. One method includes calculating time trend statistics for a document and a query during different time periods. The method further includes modifying a quality of result statistic for the document as a search result for the query by a factor based on the one or more time trend statistics. The method further includes providing the modified quality of result statistic as an input to a document ranking process. Another method includes calculating a difference score for statistics for a group of documents and a query for a first time period and a second time period. The method further includes modifying quality of result statistics for documents responsive to the query based on the difference score. The method further includes providing the modified statistics as an input to a document ranking process.
286 Citations
24 Claims
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1. A computer-implemented method comprising:
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calculating a plurality of quality of result statistics for a first document as a search result for a first query, each of the quality of result statistics corresponding to a different respective time period; calculating a plurality of time trend statistics, the time trend statistics estimating changes in the quality of result statistics over time, wherein each of the time trend statistics comprises a quality of result difference between a respective first quality of result statistic and a respective second quality of result statistic of the quality of result statistics; generating a first modified quality of result statistic by modifying a first quality of result statistic for the first document as a search result for the first query by a factor, where the factor is based on, at least, a rate of change of the time trend statistics; and providing the first modified quality of result statistic as an input to a document ranking process for the first document and the first query. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
one or more computers programmed to perform operations comprising; calculating a plurality of quality of result statistics for a first document as a search result for a first query, each of the quality of result statistics corresponding to a different respective time period; calculating a plurality of time trend statistics, the time trend statistics estimating changes in the quality of result statistics over time, wherein each of the time trend statistics comprises a quality of result difference between a respective first quality of result statistic and a respective second quality of result statistic of the quality of result statistics; generating a first modified quality of result statistic by modifying a first quality of result statistic for the first document as a search result for the first query by a factor, where the factor is based on, at least, a rate of change of the time trend statistics; and providing the first modified quality of result statistic as an input to a document ranking process for the first document and the first query. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer-readable storage medium having instructions stored thereon that, when executed by one or more computers, cause the computers to perform operations comprising:
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calculating a plurality of quality of result statistics for a first document as a search result for a first query, each of the quality of result statistics corresponding to a different respective time period; calculating a plurality of time trend statistics, the time trend statistics estimating changes in the quality of result statistics over time, wherein each of the time trend statistics comprises a quality of result difference between a respective first quality of result statistic and a respective second quality of result statistic of the quality of result statistics; generating a first modified quality of result statistic by modifying a first quality of result statistic for the first document as a search result for the first query by a factor, where the factor is based on, at least, a rate of change of the time trend statistics; and providing the first modified quality of result statistic as an input to a document ranking process for the first document and the first query. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification