Authenticated indexing for outsourced spatial databases

Yin Yang, Stavros Papadopoulos, Dimitris Papadias, George Kollios

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

In spatial database outsourcing, a data owner delegates its data management tasks to a location-based service (LBS), which indexes the data with an authenticated data structure (ADS). The LBS receives queries (ranges, nearest neighbors) originating from several clients/subscribers. Each query initiates the computation of a verification object (VO) based on the ADS. The VO is returned to the client that can verify the result correctness using the public key of the owner. Our first contribution is the MR-tree, a space-efficient ADS that supports fast query processing and verification. Our second contribution is the MR*-tree, a modified version of the MR-tree, which significantly reduces the VO size through a novel embedding technique. Finally, whereas most ADSs must be constructed and maintained by the owner, we outsource the MR- and MR*-tree construction and maintenance to the LBS, thus relieving the owner from this computationally intensive task.

Original languageEnglish
Pages (from-to)631-648
Number of pages18
JournalVLDB Journal
Volume18
Issue number3
DOIs
Publication statusPublished - Jun 2009
Externally publishedYes

Fingerprint

Location based services
Data structures
Query processing
Outsourcing
Information management

Keywords

  • Authenticated index
  • Database outsourcing
  • Mobile computing
  • Spatial database

ASJC Scopus subject areas

  • Information Systems
  • Hardware and Architecture

Cite this

Authenticated indexing for outsourced spatial databases. / Yang, Yin; Papadopoulos, Stavros; Papadias, Dimitris; Kollios, George.

In: VLDB Journal, Vol. 18, No. 3, 06.2009, p. 631-648.

Research output: Contribution to journalArticle

Yang, Y, Papadopoulos, S, Papadias, D & Kollios, G 2009, 'Authenticated indexing for outsourced spatial databases', VLDB Journal, vol. 18, no. 3, pp. 631-648. https://doi.org/10.1007/s00778-008-0113-2
Yang, Yin ; Papadopoulos, Stavros ; Papadias, Dimitris ; Kollios, George. / Authenticated indexing for outsourced spatial databases. In: VLDB Journal. 2009 ; Vol. 18, No. 3. pp. 631-648.
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