Abstract
In outsourced spatial databases, the location-based service (LBS) provides query services to the clients on behalf of the data owner. However, if the LBS is not trustworthy, it may return incorrect or incomplete query results. Thus, authentication is needed to verify the soundness and completeness of query results. In this paper, we study the authentication problem for location-based skyline queries, which have recently been receiving increasing attention in LBS applications. We propose two authentication methods: one based on the traditional MR-tree index and the other based on a newly developed MR-Sky-tree. Experimental results demonstrate the efficiency of our proposed methods in terms of the authentication cost.
Original language | English |
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Title of host publication | CIKM'11 - Proceedings of the 2011 ACM International Conference on Information and Knowledge Management |
Pages | 1583-1588 |
Number of pages | 6 |
DOIs | |
Publication status | Published - 13 Dec 2011 |
Externally published | Yes |
Event | 20th ACM Conference on Information and Knowledge Management, CIKM'11 - Glasgow, United Kingdom Duration: 24 Oct 2011 → 28 Oct 2011 |
Conference
Conference | 20th ACM Conference on Information and Knowledge Management, CIKM'11 |
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Country/Territory | United Kingdom |
City | Glasgow |
Period | 24/10/11 → 28/10/11 |
Keywords
- authentication
- data outsourcing
- skyline query
ASJC Scopus subject areas
- General Decision Sciences
- General Business,Management and Accounting