A multi-layer collaborative cache for question answering

David Dominguez-Sal, Josep Lluis Larriba-Pey, Mihai Surdeanu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


This paper is the first analysis of caching architectures for Question Answering (QA). We introduce the novel concept of multi-layer collaborative caches, where: (a) each resource intensive QA component is allocated a distinct segment of the cache, and (b) the overall cache is transparently spread across all nodes of the distributed system. We empirically analyze the proposed architecture using a real-world QA system installed on a cluster of 16 nodes. Our analysis indicates that multi-layer collaborative caches induce an almost two fold reduction in QA execution time compared to a QA system with local cache.

Original languageEnglish (US)
Title of host publicationEuro-Par 2007 Parallel Processing - 13th International Euro-Par Conference, Proceedings
Number of pages12
ISBN (Print)9783540744658
StatePublished - 2007
Event13th International Euro-Par Conference on Parallel Processing, Euro-Par 2007 - Rennes, France
Duration: Aug 28 2007Aug 31 2007

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4641 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other13th International Euro-Par Conference on Parallel Processing, Euro-Par 2007

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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