NDLI: Topk Queries across Multiple Private Databases

Content Provider	IEEE Xplore Digital Library
Author	Li Xiong Chitti, S. Ling Liu
Copyright Year	2005
Description	Author affiliation: Coll. of Comput., Georgia Inst. of Technol., Atlanta, GA (Li Xiong; Chitti, S.; Ling Liu)
Abstract	Advances in distributed service-oriented computing and global communications have formed a strong technology push for large-scale data integration among organizations and enterprises. However, concerns about data privacy become increasingly important for large-scale mission-critical data integration applications. Ideally, given a database query spanning multiple private databases, the authors wished to compute the answer to the query without revealing any additional information of each individual database apart from the query result. In practice, this constraint can be relaxed to allow efficient information integration while minimizing the information disclosure. In this paper, the authors proposed an efficient decentralized peer-to-peer protocol for supporting aggregate queries over multiple private databases while respecting the privacy constraints of participants. The paper has three main contributions. First, it formalizes the notion of loss of privacy in terms of information revealed at individual participating databases. Second, it presents a novel probabilistic decentralized protocol for topk selection across multiple private databases that minimizes the loss of privacy. Third, it experimentally evaluates the protocol in terms of its correctness, efficiency and privacy characteristics
Sponsorship	IEEE Comput. Soc. Tech. Comm. on Distributed Process. (TCDP)
Starting Page	145
Ending Page	154
File Size	246813
Page Count	10
File Format	PDF
ISBN	0769523315
ISSN	10636927
DOI	10.1109/ICDCS.2005.82
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Databases Data privacy Distributed computing Protocols Data security Information security Large scale integration Educational institutions Global communication Mission critical systems
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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