Enabling ne-grained HTTP caching of SPARQL query results
published: Nov. 25, 2011, recorded: October 2011, views: 3517
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As SPARQL endpoints are increasingly used to serve linked data, their ability to scale becomes crucial. Although much work has been done to improve query evaluation, little has been done to take advantage of caching. Effective solutions for caching query results can improve scalability by reducing latency, network IO, and CPU overhead.We show that simple augmentation of the database indexes found in common SPARQL implementations can directly lead to eeffective caching at the HTTP protocol level. Using tests from the Berlin SPARQL benchmark, we evaluate the potential of such caching to improve overall efficiency of SPARQL query evaluation.
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