| 摘要 |
Scores are maintained usable by a behavioral targeting service. Each of a plurality of scoring engine partitions is provided events (first events) for at least one of the particular non-overlapping subsets of the users, and at least one particular scoring engine partition is also provided events (second events) for at least an additional one of said particular non-overlapping subsets of the users. The event indications are processed to determine updated scoring data indicative of behavior of the users represented by the detected events relative to the at least one online service and the updated scoring data are written to a persistent scoring engine storage. The particular scoring engine provides updated scores to the persistent scoring engine storage according to a first writeback caching scheme for updated scores determined from the first events and according to a second writeback caching scheme for updated scores determined from the second events. The time-to-live parameters are controlled for the first writeback caching scheme independently of controlling time-to-live parameters for the second writeback caching scheme.
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