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 <channel rdf:about="http://ebiquity.umbc.edu/tag/rei/">
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  <image rdf:resource="http://ebiquity.umbc.edu/img/logo.jpg" />  <title><![CDATA[RSS Tag Search]]></title>
  <link>http://ebiquity.umbc.edu/tag/rei/</link>
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  <items>
   <rdf:Seq>
    <rdf:li resource="http://ebiquity.umbc.edu/project/html/id/50/IDE-for-Rei-Policy-Language"/>
    <rdf:li resource="http://ebiquity.umbc.edu/project/html/id/34/Rei-A-Policy-Specification-Language"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/273/Modeling-Conversation-Policies-using-Permissions-and-Obligations"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/308/Security-and-Privacy-Challenges-in-Open-and-Dynamic-Environments-"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/274/Rule-based-and-Ontology-based-Policies-Toward-a-Hybrid-Approach-to-Control-Agents-in-Pervasive-Environments-"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/213/Enhancing-Web-Privacy-Protection-through-Declarative-Policies"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/220/Policy-based-Access-Control-for-Task-Computing-Using-Rei-"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/205/Modeling-Communicative-Behavior-using-Permissions-and-Obligations"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/89/Security-for-DAML-Web-Services-Annotation-and-Matchmaking"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/115/A-Policy-Based-Approach-to-Security-for-the-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/116/A-Policy-Language-for-A-Pervasive-Computing-Environment"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/123/Rei-A-Policy-Language-for-the-Me-Centric-Project"/>
    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/235/Computational-Policies-in-a-Need-to-Share-Environment"/>
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 <image rdf:about="http://ebiquity.umbc.edu/img/logo.jpg">
  <title>UMBC ebiquity research group</title>
  <link>http://ebiquity.umbc.edu</link>
  <url>http://ebiquity.umbc.edu/img/logo.jpg</url>
 </image>
 <item rdf:about="http://ebiquity.umbc.edu/project/html/id/50/IDE-for-Rei-Policy-Language">
  <title><![CDATA[IDE for Rei Policy Language]]></title>
  <link>http://ebiquity.umbc.edu/project/html/id/50/IDE-for-Rei-Policy-Language</link>
  <description><![CDATA[Security policies define rules for access control, authentication, or authorization of entities in a system. With the increase in interest in web based e-commerce, the amount of business that is transacted on-line and the explosion in the amount of services available, the ability to
handle security and privacy is a must. Also, as computationally enabled devices (laptops, phones, PDAs, and even household appliances) become more commonplace and short range wireless connectivity improves; there...]]></description>
  <dc:date>2003-05-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/project/html/id/34/Rei-A-Policy-Specification-Language">
  <title><![CDATA[Rei : A Policy Specification Language]]></title>
  <link>http://ebiquity.umbc.edu/project/html/id/34/Rei-A-Policy-Specification-Language</link>
  <description><![CDATA[Security is a critical problem in dynamic and open distributed
environments such as those enabled by the semantic web and pervasive computing technologies. The presence of heterogeneous entities that
are neither pre-determined nor permanent, and the lack of central
control are some of its challenges.  We believe that declarative
policies address this problem while maintaining openness and
flexibility.  We propose the use of policies defined in OWL to
constrain the behavior of entities i...]]></description>
  <dc:date>2002-04-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/273/Modeling-Conversation-Policies-using-Permissions-and-Obligations">
  <title><![CDATA[Modeling Conversation Policies using Permissions and Obligations]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/273/Modeling-Conversation-Policies-using-Permissions-and-Obligations</link>
  <description><![CDATA[Both conversation specifications and policies are required to facilitate
effective agent communication. Specifications provide the order in which
speech acts can occur in a meaningful conversation, whereas policies restrict
the specifications that can be used in a certain conversation based
on the sender, receiver, messages exchanged thus far, content, and other
context. We propose that positive/negative permissions and obligations
be used to model conversation specifications and polici...]]></description>
  <dc:date>2007-04-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/308/Security-and-Privacy-Challenges-in-Open-and-Dynamic-Environments-">
  <title><![CDATA[Security and Privacy Challenges in Open and Dynamic Environments]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/308/Security-and-Privacy-Challenges-in-Open-and-Dynamic-Environments-</link>
  <description><![CDATA[Achieving secure open and dynamic environments requires shared vocabularies, behavioral norms, and trust models.]]></description>
  <dc:date>2006-06-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/274/Rule-based-and-Ontology-based-Policies-Toward-a-Hybrid-Approach-to-Control-Agents-in-Pervasive-Environments-">
  <title><![CDATA[Rule-based and Ontology-based Policies: Toward a Hybrid Approach to Control Agents in Pervasive Environments]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/274/Rule-based-and-Ontology-based-Policies-Toward-a-Hybrid-Approach-to-Control-Agents-in-Pervasive-Environments-</link>
  <description><![CDATA[Policies are being increasingly used for controlling the behavior of
complex multi-agent systems. The use of policies allows administrators to regulate
agent behavior without changing source code or requiring the consent or
cooperation of the agents being governed. However, policy-based control can
sometimes encounter difficulties when applied to agents that act in pervasive
environments characterized by frequent and unpredictable changes. In such cases,
we cannot always specify policie...]]></description>
  <dc:date>2005-11-07</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/213/Enhancing-Web-Privacy-Protection-through-Declarative-Policies">
  <title><![CDATA[Enhancing Web Privacy Protection through Declarative Policies]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/213/Enhancing-Web-Privacy-Protection-through-Declarative-Policies</link>
  <description><![CDATA[The Platform for Privacy Preferences (P3P) is a W3C framework for web privacy 
management. It provides a standard vocabulary that websites can use to describe their privacy practices.  
The presence of website published P3P policies enable users to configure web browsers to
allow, block or warn users during access and data exchange with websites.
It's a good idea that unfortunately is rarely used. We identify three 
primary reasons: (i) the languages available to describe user privacy pr...]]></description>
  <dc:date>2005-06-07</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/220/Policy-based-Access-Control-for-Task-Computing-Using-Rei-">
  <title><![CDATA[Policy-based Access Control for Task Computing Using Rei]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/220/Policy-based-Access-Control-for-Task-Computing-Using-Rei-</link>
  <description><![CDATA[In this paper, we describe a policy-based access control
implementation for Task Computing using the Rei policy engine.  Task
Computing lets ordinary end-users accomplish complex tasks on the fly
from an open, dynamic, and distributed "universe of network-accessible
resources" in ubiquitous computing environments as well as those on
the Internet.  The Rei policy specification language is an expressive
and extensible language based on Semantic Web technologies. The Rei
policy engine rea...]]></description>
  <dc:date>2005-05-10</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/205/Modeling-Communicative-Behavior-using-Permissions-and-Obligations">
  <title><![CDATA[Modeling Communicative Behavior using Permissions and Obligations]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/205/Modeling-Communicative-Behavior-using-Permissions-and-Obligations</link>
  <description><![CDATA[We describe our preliminary work in modeling conversation
specifications and policies as positive/negative permissions and obligations.
Our model is generic as it is independent of the syntax and semantics
of the communication language and can be used for different agent
communication languages. We also discuss the relationship between conversation
specifications and policies and show how both are used by an
agent in order to decide what communicative act to perform next within
a conve...]]></description>
  <dc:date>2005-01-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/89/Security-for-DAML-Web-Services-Annotation-and-Matchmaking">
  <title><![CDATA[Security for DAML Web Services: Annotation and Matchmaking]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/89/Security-for-DAML-Web-Services-Annotation-and-Matchmaking</link>
  <dc:date>2003-09-30</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/115/A-Policy-Based-Approach-to-Security-for-the-Semantic-Web">
  <title><![CDATA[A Policy Based Approach to Security for the Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/115/A-Policy-Based-Approach-to-Security-for-the-Semantic-Web</link>
  <description><![CDATA[The Semantic Web is a future generation of the current Web, where resources are annotated with machine understandable meta-data, allowing the automation of the retrieval and usage of these resources in their correct contexts. Along with developing specifications for the description of meta-data and the extraction of information, there is an immediate and critical need - the ability to maximize security in an environment that is fundamentally dynamic, open and devoid of many of the clues human...]]></description>
  <dc:date>2003-09-22</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/116/A-Policy-Language-for-A-Pervasive-Computing-Environment">
  <title><![CDATA[A Policy Language for A Pervasive Computing Environment]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/116/A-Policy-Language-for-A-Pervasive-Computing-Environment</link>
  <description><![CDATA[In this paper we describe a policy language designed
for pervasive computing applications that is based on deontic
concepts and grounded in a semantic language. The
pervasive computing environments under consideration are
those in which people and devices are mobile and use various
wireless networking technologies to discover and access
services and devices in their vicinity. Such pervasive
environments lend themselves to policy-based security due
to their extremely dynamic nature. Us...]]></description>
  <dc:date>2003-06-04</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/123/Rei-A-Policy-Language-for-the-Me-Centric-Project">
  <title><![CDATA[Rei : A Policy Language for the Me-Centric Project]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/123/Rei-A-Policy-Language-for-the-Me-Centric-Project</link>
  <description><![CDATA[Policies guide the way entities within a domain act, by providing
rules for their behavior. Most of the research in policies is within a
certain application area, for example security for databases, and
there are no general specifications for policies. Another problem
with policies is that they require domain dependent information,
forcing researchers to create policy languages that are bound to the
domains for which they were developed. This prevents policy
languages from being flexib...]]></description>
  <dc:date>2002-09-15</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/235/Computational-Policies-in-a-Need-to-Share-Environment">
  <title><![CDATA[Computational Policies in a Need to Share Environment]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/235/Computational-Policies-in-a-Need-to-Share-Environment</link>
  <dc:date>2007-06-21</dc:date>
 </item>
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