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 <channel rdf:about="http://ebiquity.umbc.edu//tag/html/speech acts/?t=speech+acts">
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  <title><![CDATA[UMBC ebiquity RSS Tag Search]]></title>
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      <rdf:li resource="http://ebiquity.umbc.edu/event/html/id/97/Applying-Policy-Based-Access-Control-and-XML-Digital-Signatures-for-Security-in-Pervasive-Computing-Environments"/>
      <rdf:li resource="http://ebiquity.umbc.edu/event/html/id/89/Integrated-Development-Environment-for-Policies"/>
      <rdf:li resource="http://ebiquity.umbc.edu/event/html/id/58/A-Policy-Based-Approach-to-Governing-Autonomous-Behavior-in-Distributed-Environments"/>
      <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/226/Applying-Policy-Based-Access-Control-and-XML-Digital-Signatures-for-Security-in-Pervasive-Computing-Environments"/>
      <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/225/An-integrated-development-environment-for-policies"/>
      <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/210/A-Policy-Based-Approach-to-Governing-Autonomous-Behavior-in-Distributed-Environments"/>
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      <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/739/Introduction-to-the-special-issue-on-ontologies-in-agent-systems"/>
      <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/121/A-Delegation-Based-Model-for-Distributed-Trust"/>
      <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/231/History-State-of-the-Art-and-Challenges-for-Agent-Communication-Languages"/>
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 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/97/Applying-Policy-Based-Access-Control-and-XML-Digital-Signatures-for-Security-in-Pervasive-Computing-Environments">
  <title><![CDATA[Applying Policy Based Access Control and XML Digital Signatures for Security in Pervasive Computing Environments]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/97/Applying-Policy-Based-Access-Control-and-XML-Digital-Signatures-for-Security-in-Pervasive-Computing-Environments</link>
  <description><![CDATA[Security and access control are one of the major issues within pervasive
computing environments such as Task Computing. There is a need of
unobtrusive and flexible access control and access to services has to be
restricted based on certain policies imposed by the organization (Fujitsu
in this case). The dynamic nature of pervasive computing environments also
requires the updating of policies on the fly.

REI developed at University of Maryland Baltimore County is an expressive
and ext...]]></description>
  <dc:date>2005-05-06</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/89/Integrated-Development-Environment-for-Policies">
  <title><![CDATA[Integrated Development Environment for Policies]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/89/Integrated-Development-Environment-for-Policies</link>
  <description><![CDATA[There has been growing interest in the use of policy-based governing
frameworks for management of a wide range of systems. These systems ranging
from simple and static to increasingly complex and dynamic have demanding
requirements that make the management of policies a complex task. Though tools
have been developed to facilitate policy frameworks, there is not much work in
policy development that meets the requirements of these policy-based
environments. Some of these requirements incl...]]></description>
  <dc:date>2005-03-07</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/58/A-Policy-Based-Approach-to-Governing-Autonomous-Behavior-in-Distributed-Environments">
  <title><![CDATA[A Policy-Based Approach to Governing Autonomous Behavior in Distributed Environments]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/58/A-Policy-Based-Approach-to-Governing-Autonomous-Behavior-in-Distributed-Environments</link>
  <description><![CDATA[Many emerging computational systems such as pervasive computing environments, the semantic web, grid computing, and multi-agent systems fit the paradigm of open, dynamic distributed systems.  These
systems have to accommodate a wide range of domain knowledge due to diverse organizational boundaries, adapt to heterogeneous, mobile, and
semi-autonomous entities, and manage variations caused by the movement of users, ambiguous boundaries, and permutable services.


While past research has...]]></description>
  <dc:date>2004-09-15</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 policies. We...]]></description>
  <dc:date>2007-04-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/226/Applying-Policy-Based-Access-Control-and-XML-Digital-Signatures-for-Security-in-Pervasive-Computing-Environments">
  <title><![CDATA[Applying Policy Based Access Control and XML Digital Signatures for Security in Pervasive Computing Environments]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/226/Applying-Policy-Based-Access-Control-and-XML-Digital-Signatures-for-Security-in-Pervasive-Computing-Environments</link>
  <description><![CDATA[Security and access control are one of the major issues within pervasive computing environments such as Task Computing. There is a need of unobtrusive and flexible access control and access to services has to be restricted based on certain policies imposed by the organization (Fujitsu in this case). The dynamic nature of pervasive computing environments also requires the updating of policies on the fly. 

REI developed at University of Maryland Baltimore County is an expressive and extensib...]]></description>
  <dc:date>2005-05-06</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/225/An-integrated-development-environment-for-policies">
  <title><![CDATA[An integrated development environment for policies]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/225/An-integrated-development-environment-for-policies</link>
  <description><![CDATA[There has been growing interest in the use of policy-based governing
frameworks for management of a wide range of systems. These systems
ranging from simple and static to increasingly complex and dynamic
have demanding requirements that make the management of policies a
complex task. Though tools have been developed to facilitate policy
frameworks, there is not much work in policy development that meets
the requirements of these policy-based environments. Some of these
requirements inc...]]></description>
  <dc:date>2005-03-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/210/A-Policy-Based-Approach-to-Governing-Autonomous-Behavior-in-Distributed-Environments">
  <title><![CDATA[A Policy-Based Approach to Governing Autonomous Behavior in Distributed Environments]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/210/A-Policy-Based-Approach-to-Governing-Autonomous-Behavior-in-Distributed-Environments</link>
  <description><![CDATA[Many emerging computational systems such as pervasive computing
environments, the semantic web, grid computing, and multi-agent
systems fit the paradigm of open, dynamic distributed systems. These
systems have to accommodate a wide range of domain knowledge due to
diverse organizational boundaries, adapt to heterogeneous, mobile, and
semi-autonomous entities, and manage variations caused by the movement
of users, ambiguous boundaries, and permutable services.  

 While past research ...]]></description>
  <dc:date>2004-09-15</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/166/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/166/Modeling-Conversation-Policies-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 conversation...]]></description>
  <dc:date>2004-07-19</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 metadata, allowing the automation of the retrieval and usage of these resources in their correct contexts. Along with developing specifications for the description of metadata 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/739/Introduction-to-the-special-issue-on-ontologies-in-agent-systems">
  <title><![CDATA[Introduction to the special issue on ontologies in agent systems]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/739/Introduction-to-the-special-issue-on-ontologies-in-agent-systems</link>
  <description><![CDATA[It is now more than ten years since researchers in the US Knowledge Sharing Effort envisaged a future where complex systems could be built by combining knowledge and services from multiple knowledge bases, and the first agent communication language, KQML, was proposed (Neches et al., 1991). This model of communication, based on speech acts, a declarative message content representation language, and the use of explicit ontologies defining the domains of discourse (Genesereth & Ketchpel, 1994),...]]></description>
  <dc:date>2002-03-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/121/A-Delegation-Based-Model-for-Distributed-Trust">
  <title><![CDATA[A Delegation Based Model for Distributed Trust]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/121/A-Delegation-Based-Model-for-Distributed-Trust</link>
  <description><![CDATA[This paper discusses our infrastructure for handling distributed security and trust. It outlines a method for access control
across domains that handles complex inter domain trust relationships. We have developed a flexible representation of trust
information in Prolog, that can model permissions and delegations. We are currently working on modeling obligations,
entitlements, and prohibitions as well. This paper describes a scheme for restricting re-delegation without using a specific
del...]]></description>
  <dc:date>2001-08-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/231/History-State-of-the-Art-and-Challenges-for-Agent-Communication-Languages">
  <title><![CDATA[History, State of the Art and Challenges for Agent Communication Languages]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/231/History-State-of-the-Art-and-Challenges-for-Agent-Communication-Languages</link>
  <description><![CDATA[Knowledge Query and Manipulation Language (KQML) is a language of typed messages, usually understood as speech acts, encoded as ASCII strings (in a LISP-like syntax), that are transported over TCP/IP connections and aimed at knowledge and information exchange between software systems that are viewed as Virtual Knowledge Bases. KQML, which first appeared almost 10 years ago, has come to define the concept of an ACL, and in the process the ACL has become the centerpiece of a large category of a...]]></description>
  <dc:date>2000-01-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/330/KQML-as-an-agent-communication-language">
  <title><![CDATA[KQML as an agent communication language]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/330/KQML-as-an-agent-communication-language</link>
  <description><![CDATA[This paper describes the design of and experimentation with the Knowledge Query and Manipulation Language (KQML), a new language and protocol for exchanging information and knowledge. This work is part of a larger effort, the ARPA Knowledge Sharing Effort, which is aimed at developing techniques and methodology for building large-scale knowledge bases that are shareable and reusable. KQML is both a message format and a message-handling protocol to support run-time knowledge sharing among agen...]]></description>
  <dc:date>1994-10-29</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/224/Rei-Ontology-Specifications-Ver-2-0">
  <title><![CDATA[Rei Ontology Specifications, Ver 2.0]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/224/Rei-Ontology-Specifications-Ver-2-0</link>
  <description><![CDATA[Rei is a policy specification language in OWL-Lite that allows users to develop declarative policies over domain specific ontologies in RDF, DAML+OIL and OWL.

Rei is used to describe positive and negative permissions and obligations of entities in the policy domain. A distinguishing feature of Rei is that it includes specifications for speech acts, policy analysis and conflict resolution. The speech included are delegation, revocation, request and cancel and are used for remote policy mana...]]></description>
  <dc:date>2007-05-15</dc:date>
 </item>
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