Secure spatial top k query processing via untrusted location-based service providers

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Secure spatial top k query processing via untrusted location-based service providers Do Your Projects With Technology Experts To Get this projects Call : 9566355386 / 99625 88976 Visit : www.lemenizinfotech.com / www.ieeemaster.com Mail : projects@lemenizinfotech.com

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Copyright © 2015 LeMeniz Infotech. All rights reserved
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LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
Secure Spatial Top-k Query Processing via
Untrusted Location-Based Service Providers
ABSTRACT
This project considers a novel distributed system for collaborative
location-based information generation and sharing which become
increasingly popular due to the explosive growth of Internet-capable and
location-aware mobile devices. The system consists of a data collector,
data contributors, location-based service providers (LBSPs), and system
users. The data collector gathers reviews about points-of-interest (POIs)
from data contributors, while LBSPs purchase POI data sets from the
data collector and allow users to perform spatial top-k queries which ask
for the POIs in a certain region and with the highest k ratings for an
interested POI attribute. In practice, LBSPs are untrusted and may return
fake query results for various bad motives, e.g., in favor of POIs willing
to pay. This paper presents three novel schemes for users to detect fake
spatial snapshot and moving top-k query results as an effort to foster the
practical deployment and use of the proposed system. The efficacy and
efficiency of our schemes are thoroughly analyzed and evaluated.
EXISTING SYSTEM
LBSPs are untrusted and may return fake query results for various
bad motives. Individual LBSPs often have very small data sets
comprising POI reviews.

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Copyright © 2015 LeMeniz Infotech. All rights reserved
Page number 2
LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
DRAWBACK OF EXISTING SYSTEM
 An individual LBSPs may not cover all content within a search
radius.
 Users may get confused by very different query results from
different LBSPs for the same query.
 Limited data sets of individual LBSPs is that people tend to leave
reviews for the same POI at one or at most only a few LBSP’s
websites which they often visit.
PROPOSED SYSTEM
Spatial queries, a spatial (or location-based) top-k query asks for
the POIs in a certain region and with the highest k ratings for a given
POI attribute.
Owing to the growing popularity of social networks, it is more and
more convenient and motivating for mobile users to share with others
their experience with all kinds of points of interests (POIs) such as bars,
restaurants, grocery.
Spatial top-k queries, and the term “spatial” will be omitted
hereafter for brevity.

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Copyright © 2015 LeMeniz Infotech. All rights reserved
Page number 3
LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
ADVANTAGE OF PROPOSED SYSTEM
 Centralized data collection also makes it much easier and feasible
 Data collectors can be either new service providers or more
preferably existing ones with a large user base
 Secure ranked keyword search or fine-grained access control over
encrypted data.
SYSTEM SPECIFICATION
Hardware Requirements
System : Pentium IV 2.4 GHz
Hard Disk : 40 GB
Floppy Drive : 1.44 Mb
Monitor : 15 VGA Colour
Mouse : Logitech
Ram : 512 Mb

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Copyright © 2015 LeMeniz Infotech. All rights reserved
Page number 4
LeMeniz Infotech
36, 100 Feet Road, Natesan Nagar, Near Indira Gandhi Statue,
Pondicherry-605 005.
Call: 0413-4205444, +91 9566355386, 99625 88976.
Web : www.lemenizinfotech.com / www.ieeemaster.com
Mail : projects@lemenizinfotech.com
Software Requirements
Operating system : Windows Family
Tools : eclipse/Netbeans
Technology Used : Java
Backend Used : SQL Server

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