Query result caching is an important mechanism for search engine efficiency. In this study, we first review several query features that are used to determine the contents of a static result cache. Next, we introduce a new feature that more accurately represents the popularity of a query by measuring the stability of query frequency over a set of time intervals. Experimental results show that this new feature achieves hit ratios better than those of the previously proposed features.
Ozcan et al. REF studied a query frequency problem to maximize the hit ratio for the result cache, then provided a more accurate feature established based on the stability of query frequency over several given time intervals.
Static query result caching revisited
In Proc. 17th Int’l Conf. on World Wide Web
Computer Science