CSC: supporting queries on compressed cached XML

  • Authors:

  • Stefan Böttcher;Rita Hartel

  • Affiliations:

  • University of Paderborn, Fürstenallee, Paderborn, Germany;University of Paderborn, Fürstenallee, Paderborn, Germany

  • Venue:
  • ADC '09 Proceedings of the Twentieth Australasian Conference on Australasian Database - Volume 92
  • Year:
  • 2009

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Abstract

Whenever a client frequently has to retrieve, to query and to locally transform large parts of a huge XML document that is stored on a remote web information server, data exchange from the server to the client may become a serious bottleneck that simply limits scaling of the amount of information that can be processed locally on the client by a client-based application. We present Compressed Structure Caching (CSC) as a solution that reduces the amount of data exchange by a combination of the following techniques: compression of the XML document's structure, client-side caching of the structure and of already received XML content, inference and optimized loading of the content needed on the client to answer a given query. We provide a performance evaluation that demonstrates that our approach significantly reduces the amount of data exchange from server to client.