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	<pub:TechReport rdf:about="http://ebiquity.umbc.edu/paper/html/id/537/Privacy-Preservation-in-Context-Aware-Geosocial-Networking-Applications">
		<rdfs:label><![CDATA[Privacy Preservation in Context Aware Geosocial Networking Applications]]></rdfs:label>
		<pub:title><![CDATA[Privacy Preservation in Context Aware Geosocial Networking Applications]]></pub:title>
		<pub:publishedOn rdf:datatype="&xsd;dateTime">2011-05-01T00:00:00-05:00</pub:publishedOn>
		<pub:abstract><![CDATA[Recent years have seen a confluence of two major trends -
the increase of mobile devices such as smart phones as the
primary access point to networked information and the rise
of social media platforms that connect people. Their convergence
supports the emergence of a new class of context-aware
geo-social networking applications. While existing systems
focus mostly on location, our work centers on models
for representing and reasoning about a more inclusive and
higher-level notion of context, including the user's location
and surroundings, the presence of other people and devices,
feeds from social networking systems they use, and the inferred
activities in which they are engaged. A key element
of our work is the use of collaborative information sharing
where devices share and integrate knowledge about their
context. This introduces the need for privacy and security
mechanisms. We present a framework to provide users with
appropriate levels of privacy to protect the personal information
their mobile devices are collecting including the inferences
that can be drawn from the information. We use
Semantic Web technologies to specify high-level, declarative
policies that describe user's information sharing preferences.
We have built a prototype system that aggregates information
from a variety of sensors on the phone, online sources,
and sources internal to the campus intranet, and infers the
dynamic user context. We show how our policy framework
can be effectively used to devise better privacy control mechanisms
to control information 
ow between users in such
dynamic mobile systems.]]></pub:abstract>
		<pub:organization><![CDATA[Computer Science and Electrical Engineering]]></pub:organization>
		<pub:counter>2331</pub:counter>
		<pub:tag><![CDATA[context]]></pub:tag>
		<pub:tag><![CDATA[mobile]]></pub:tag>
		<pub:tag><![CDATA[policy]]></pub:tag>
		<pub:tag><![CDATA[privacy]]></pub:tag>
		<pub:publisher><![CDATA[University of Maryland, Baltimore County]]></pub:publisher>
		<pub:author>
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				<rdf:first>
					<person:Person rdf:about="http://ebiquity.umbc.edu/person/html/Anupam/Joshi"><person:name><![CDATA[Anupam Joshi]]></person:name><rdfs:label><![CDATA[Anupam Joshi]]></rdfs:label></person:Person>
				</rdf:first>
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						<rdf:first>
							<person:Person rdf:about="http://ebiquity.umbc.edu/person/html/Tim/Finin"><person:name><![CDATA[Tim Finin]]></person:name><rdfs:label><![CDATA[Tim Finin]]></rdfs:label></person:Person>
						</rdf:first>
						<rdf:rest>							<rdf:List>
								<rdf:first>
									<person:Person rdf:about="http://ebiquity.umbc.edu/person/html/Laura/Zavala"><person:name><![CDATA[Laura Zavala]]></person:name><rdfs:label><![CDATA[Laura Zavala]]></rdfs:label></person:Person>
								</rdf:first>
								<rdf:rest>									<rdf:List>
										<rdf:first>
											<person:Person rdf:about="http://ebiquity.umbc.edu/person/html/Pramod/Jagtap"><person:name><![CDATA[Pramod Jagtap]]></person:name><rdfs:label><![CDATA[Pramod Jagtap]]></rdfs:label></person:Person>
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		<pub:firstAuthor>
<person:Person rdf:about="http://ebiquity.umbc.edu/person/html/Anupam/Joshi"><person:name><![CDATA[Anupam Joshi]]></person:name><rdfs:label><![CDATA[Anupam Joshi]]></rdfs:label></person:Person>
		</pub:firstAuthor>
		<pub:relatedProject><project:PastProject rdf:about="http://ebiquity.umbc.edu/project/html/id/92/Platys-From-Position-to-Place-in-Next-Generation-Networks"><project:title><![CDATA[Platys: From Position to Place in Next Generation Networks]]></project:title><rdfs:label><![CDATA[Platys: From Position to Place in Next Generation Networks]]></rdfs:label></project:PastProject></pub:relatedProject>
		<pub:softCopy><pub:SoftCopy>
			<pub:softCopyFormat><![CDATA[PDF Document]]></pub:softCopyFormat>
			<pub:softCopyURI><![CDATA[http://ebiquity.umbc.edu/get/a/publication/563.pdf]]></pub:softCopyURI>
			<pub:softCopySize>550357</pub:softCopySize>
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	</pub:TechReport>

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