Name
Abstract | ||
|---|---|---|
We propose and analyze a distributed cooperative caching strategy based on the Evolutive Summary Counters (ESC), a new data structure that stores an approximated record of the data accesses in each computing node of a search engine. The ESC capture the frequency of accesses to the elements of a data collection, and the evolution of the access patterns for each node in a network of computers. The ESC can be efficiently summarized into what we call ESC-summaries to obtain approximate statistics of the document entries accessed by each computing node. We use the ESC-summaries to introduce two algorithms that manage our distributed caching strategy, one for the distribution of the cache contents, ESC-placement, and another one for the search of documents in the distributed cache, ESC-search. While the former improves the hit rate of the system and keeps a large ratio of data accesses local, the latter reduces the network traffic by restricting the number of nodes queried to find a document. We show that our cooperative caching approach outperforms state-of-the-art models in both hit rate, throughput, and location recall for multiple scenarios, i.e., different query distributions and systems with varying degrees of complexity. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/TPDS.2011.162 | IEEE Trans. Parallel Distrib. Syst. |
Keywords | Field | DocType |
hit rate,data collection,cache content,efficient cooperative caching,caching strategy,data access,computing node,cooperative caching approach,search engines,evolutive summary counters,new data structure,cooperative caching strategy,document entry,data structures,distributed systems,evolutionary computation,approximation theory,search engine,distributed system,radiation detectors,statistics,data structure,radiation detector,distributed processing | Hit rate,Data structure,Data collection,Search engine,Computer science,Cache,Distributed cache,Computer network,Evolutionary computation,Throughput,Distributed computing | Journal |
Volume | Issue | ISSN |
23 | 4 | 1045-9219 |
Citations | PageRank | References |
2 | 0.39 | 0 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| David Dominguez-Sal | 1 | 189 | 16.35 |
| Josep Aguilar-Saborit | 2 | 86 | 8.01 |
| Mihai Surdeanu | 3 | 2582 | 174.69 |
| Josep Lluis Larriba-Pey | 4 | 10 | 2.64 |