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  This ontology document is licensed under the Creative Commons
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 <channel rdf:about="http://ebiquity.umbc.edu/tag/owl/">
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    <rdf:li resource="http://ebiquity.umbc.edu/project/html/id/52/OWLCHecker"/>
    <rdf:li resource="http://ebiquity.umbc.edu/project/html/id/34/Rei-A-Policy-Specification-Language"/>
    <rdf:li resource="http://ebiquity.umbc.edu/project/html/id/9/Spire"/>
    <rdf:li resource="http://ebiquity.umbc.edu/project/html/id/53/Swoogle"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/387/ROWLBAC-Representing-Role-Based-Access-Control-in-OWL"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/388/OWL-as-a-Target-for-Information-Extraction-Systems-"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/385/Role-Based-Access-Control-and-OWL"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/316/Characterizing-the-Semantic-Web-on-the-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/303/Integrating-Ecoinformatics-Resources-on-the-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/321/Toward-Distributed-Service-Discovery-in-Pervasive-Computing-Environments"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/278/BayesOWL-A-Probabilistic-Framework-for-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/241/Finding-and-Ranking-Knowledge-on-the-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/263/Tracking-RDF-Graph-Provenance-using-RDF-Molecules"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/249/A-Bayesian-Network-Approach-to-Ontology-Mapping"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/261/Integrating-Language-Understanding-Agents-Into-the-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/271/BayesOWL-Uncertainty-Modeling-in-Semantic-Web-Ontologies"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/257/Using-Ontologies-in-the-Semantic-Web-A-Survey"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/266/Using-Ontologies-in-the-Semantic-Web-A-Survey"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/223/Swoogle-Searching-for-knowledge-on-the-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/240/Tracking-RDF-Graph-Provenance-using-RDF-Molecules"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/183/Swoogle-A-Search-and-Metadata-Engine-for-the-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/201/Intelligent-Agents-Meet-the-Semantic-Web-in-Smart-Spaces"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/189/Will-the-Semantic-Web-Change-Science-"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/187/Towards-Distributed-Service-Discovery-in-Pervasive-Computing-Environments"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/174/-Authorization-and-Privacy-for-Semantic-Web-Services"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/143/A-Context-Broker-for-Building-Smart-Meeting-Rooms"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/92/A-Probabilistic-Extension-to-Ontology-Language-OWL"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/149/Automatically-Generated-DAML-Markup-for-Semistructured-Documents"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/79/Using-OWL-in-a-Pervasive-Computing-Broker"/>
    <rdf:li resource="http://ebiquity.umbc.edu/paper/html/id/177/Towards-Distributed-Service-Discovery-in-Pervasive-Computing-Environments"/>
    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/163/-BayesOWL-A-Probabilistic-Framework-for-Uncertainty-in-Semantic-Web-pdf-"/>
    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/126/10M-RDF-triples"/>
    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/12/A-Proposal-for-Pervasive-Computing-Standard-Ontology"/>
    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/256/BayesOWL-binary-file"/>
    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/257/BayesOWL-source-file-"/>
    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/281/Blackbook3-A-Graph-Analytic-Processing-Platform-For-The-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/156/Integrating-Language-Understanding-Agents-into-the-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/159/UMBC-Semantic-Web-Reference-Card-v1"/>
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    <rdf:li resource="http://ebiquity.umbc.edu/resource/html/id/97/UMBC-Semantic-Web-Reference-Card-v2-A4-"/>
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    <rdf:li resource="http://ebiquity.umbc.edu/event/html/id/216/Linked-Data"/>
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    <rdf:li resource="http://ebiquity.umbc.edu/event/html/id/165/Semantically-Linked-Bayesian-Networks-A-Framework-for-Probabilistic-Inference-Over-Multiple-Bayesian-Networks"/>
    <rdf:li resource="http://ebiquity.umbc.edu/event/html/id/129/-BayesOWL-A-Probabilistic-Framework-for-Uncertainty-in-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/event/html/id/119/Integrating-Language-Understanding-Agents-Into-the-Semantic-Web"/>
    <rdf:li resource="http://ebiquity.umbc.edu/event/html/id/75/PhD-proposal-On-Boosting-Semantic-Web-Data-Access"/>
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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/52/OWLCHecker">
  <title><![CDATA[OWLCHecker]]></title>
  <link>http://ebiquity.umbc.edu/project/html/id/52/OWLCHecker</link>
  <description><![CDATA[Develop a tool to help OWL ontology writers follow good style.  The
first step is to come up with a set of style conventions. these could
include conventions for documentation, importing ontologies,
organization, etc.  An author could apply the tool to an ontology and
get a HTML report on warnings and errors detected by the checker.

One model might be  Checkstyle
-- a development tool to help programmers write Java code that adheres
to a coding standard. It automates the process of c...]]></description>
  <dc:date>2004-02-01</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/project/html/id/9/Spire">
  <title><![CDATA[Spire]]></title>
  <link>http://ebiquity.umbc.edu/project/html/id/9/Spire</link>
  <description><![CDATA[Spire is a distributed, interdisciplinary research project exploring the use of semantic web technologies in support science in general and the field of ecoinformatics in particular. Spire has received funding from the National Science Foundation ITR program and additional funding is expected from several other government agencies.]]></description>
  <dc:date>2003-09-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/project/html/id/53/Swoogle">
  <title><![CDATA[Swoogle]]></title>
  <link>http://ebiquity.umbc.edu/project/html/id/53/Swoogle</link>
  <description><![CDATA[Swoogle (http://swoogle.umbc.edu/) is an specialized web
search engine that discovers, analyzes and indexes knowledge
encoded in semantic web documents published on the
Web. Swoogle reasons about these documents and their
constituent parts (e.g., terms, individuals, triples) and
records meaningful metadata about them. Swoogle provides
webscale semantic web data access service, which helps human
users and software systems to find relevant documents, terms
and triples, via its search an...]]></description>
  <dc:date>2004-02-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/387/ROWLBAC-Representing-Role-Based-Access-Control-in-OWL">
  <title><![CDATA[ROWLBAC - Representing Role Based Access Control in OWL]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/387/ROWLBAC-Representing-Role-Based-Access-Control-in-OWL</link>
  <description><![CDATA[There have been two parallel themes in access control research in
recent years.  On the one hand there are efforts to develop new access
control models to meet the policy needs of real world application
domains. In parallel, and almost separately, researchers have
developed policy languages for access control.  This paper is
motivated by the consideration that these two parallel efforts need to
develop synergy.  A policy language in the abstract without ties to a
model gives the design...]]></description>
  <dc:date>2008-06-11</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/388/OWL-as-a-Target-for-Information-Extraction-Systems-">
  <title><![CDATA[OWL as a Target for Information Extraction Systems]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/388/OWL-as-a-Target-for-Information-Extraction-Systems-</link>
  <description><![CDATA[Current information extraction systems can do a good job of discovering entities, relations and events in natural language text.  The traditional out- 
put of such systems is XML, with the ACE Pilot Format (APF) schema as a 
common target.  We are developing a system that will take the output of an information extraction system as APF documents and directly populate a knowledge base with the information extracted.  We report on an initial OWL ontology that covers the APF schema, a simple pr...]]></description>
  <dc:date>2008-04-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/385/Role-Based-Access-Control-and-OWL">
  <title><![CDATA[Role Based Access Control and OWL]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/385/Role-Based-Access-Control-and-OWL</link>
  <description><![CDATA[Current access control research follows two parallel themes: many efforts focus on developing novel access control models meeting the policy needs of real world application domains while others are exploring new policy languages. This paper is motivated by the desire to develop a synergy between these themes facilitated by OWL. Our vision for the future is a world where advanced access control concepts are embodied in models that are supported by policy languages in a natural intuitive manner...]]></description>
  <dc:date>2008-04-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/316/Characterizing-the-Semantic-Web-on-the-Web">
  <title><![CDATA[Characterizing the Semantic Web on the Web]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/316/Characterizing-the-Semantic-Web-on-the-Web</link>
  <description><![CDATA[Semantic Web languages are being used to represent, encode and
exchange semantic data in many contexts beyond the Web -- in
databases, multiagent systems, mobile computing, and ad hoc networking
environments.  The core paradigm, however, remains what we call the
{em Web aspect} of the Semantic Web -- its use by independent and
distributed agents who publish and consume data on the World Wide Web.
To better understand this central use case, we have harvested and
analyzed a collection of...]]></description>
  <dc:date>2006-11-05</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/303/Integrating-Ecoinformatics-Resources-on-the-Semantic-Web">
  <title><![CDATA[Integrating Ecoinformatics Resources on the Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/303/Integrating-Ecoinformatics-Resources-on-the-Semantic-Web</link>
  <description><![CDATA[We describe ELVIS (the Ecosystem Location Visualization and
Information System), a suite of tools for constructing food webs
for a given location. We express both ELVIS input and output
data in OWL, thereby enabling its integration with other
semantic web resources. In particular, we describe using a Triple
Shop application to answer SPARQL queries from a collection of
semantic web documents. This is an end-to-end case study for the
semantic webÂ's utility for ecological and environmen...]]></description>
  <dc:date>2006-05-20</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/321/Toward-Distributed-Service-Discovery-in-Pervasive-Computing-Environments">
  <title><![CDATA[Toward Distributed Service Discovery in Pervasive Computing Environments]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/321/Toward-Distributed-Service-Discovery-in-Pervasive-Computing-Environments</link>
  <description><![CDATA[The paper proposes a novel distributed service discovery protocol for pervasive environments. The protocol is based on the concepts of peer-to-peer caching of service advertisements and group-based intelligent forwarding of service requests. It does not require a service to be registered with a registry or lookup server. Services are described using the Web Ontology Language (OWL). We exploit the semantic class/subClass hierarchy of OWL to describe service groups and use this semantic informa...]]></description>
  <dc:date>2006-02-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/278/BayesOWL-A-Probabilistic-Framework-for-Semantic-Web">
  <title><![CDATA[BayesOWL: A Probabilistic Framework for Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/278/BayesOWL-A-Probabilistic-Framework-for-Semantic-Web</link>
  <description><![CDATA[To address the difficult but important problem of modeling uncertainty in semantic web,
this research takes a probabilistic approach and develops a theoretical framework, named
BayesOWL, that incorporates the Bayesian network (BN), a widely used graphic model
for probabilistic interdependency, into the web ontology language OWL. This framework
consists of three key components: 1) a representation of probabilistic constraints as OWL
statements; 2) a set of structural translation rules and...]]></description>
  <dc:date>2005-12-05</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/241/Finding-and-Ranking-Knowledge-on-the-Semantic-Web">
  <title><![CDATA[Finding and Ranking Knowledge on the Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/241/Finding-and-Ranking-Knowledge-on-the-Semantic-Web</link>
  <description><![CDATA[Swoogle is a system that helps knowledge engineers and software agents find knowledge on the web encoded in the semantic web languages RDF and OWL.  Based on the search mechanisms provided in the previous version, we propose a novel semantic web navigation model and refine mechanisms for ranking the semantic web at various granularities. Although the semantic web is materialized on the Web, it is hard to navigate within the semantic web since few explicit ``hyperlinks'' are available besides ...]]></description>
  <dc:date>2005-11-07</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/263/Tracking-RDF-Graph-Provenance-using-RDF-Molecules">
  <title><![CDATA[Tracking RDF Graph Provenance using RDF Molecules]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/263/Tracking-RDF-Graph-Provenance-using-RDF-Molecules</link>
  <description><![CDATA[Tracking the provenance of an RDF graph requires
finding all supporting sources and rejecting all irrelevant ones, but
neither RDF document nor triple is appropriate. Therefore, we approach
this goal using lossless decomposition of RDF graph at RDF molecule
granularity, which is the finest and lossless sub-graph of an RDF
graph. We also implements three decomposition strategies a prototype
RDF graph provenance service covering 50M real world triples collected
by Swoogle.]]></description>
  <dc:date>2005-11-07</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/249/A-Bayesian-Network-Approach-to-Ontology-Mapping">
  <title><![CDATA[A Bayesian Network Approach to Ontology Mapping]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/249/A-Bayesian-Network-Approach-to-Ontology-Mapping</link>
  <description><![CDATA[This paper presents our ongoing effort on developing a principled methodology for automatic ontology mapping based on BayesOWL, a probabilistic framework we developed for modeling uncertainty in semantic web. In this approach, the source and target ontologies are first translated into Bayesian networks (BN); the concept mapping between the two ontologies are treated as evidential reasoning between the two translated BN. Probabilities needed for constructing conditional probability tables (CPT...]]></description>
  <dc:date>2005-11-06</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/261/Integrating-Language-Understanding-Agents-Into-the-Semantic-Web">
  <title><![CDATA[Integrating Language Understanding Agents Into the Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/261/Integrating-Language-Understanding-Agents-Into-the-Semantic-Web</link>
  <description><![CDATA[Many intelligent agents need knowledge and information to
support their reasoning and problem solving. The World
Wide Web is a vast, open, accessible and free source of
knowledge, but virtually all of it is encoded as natural language
text ï¿½ a form difficult for most agents to directly understand.
We describe initial work on adapting a mature language
understanding agent to process Web text and publish
its output in the SemanticWeb language OWL. This approach
adds knowledge on the W...]]></description>
  <dc:date>2005-11-04</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/271/BayesOWL-Uncertainty-Modeling-in-Semantic-Web-Ontologies">
  <title><![CDATA[BayesOWL: Uncertainty Modeling in Semantic Web Ontologies]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/271/BayesOWL-Uncertainty-Modeling-in-Semantic-Web-Ontologies</link>
  <description><![CDATA[It is always essential but diÂ±cult to capture incomplete, partial or uncertain
knowledge when using ontologies to conceptualize an application domain or to
achieve semantic interoperability among heterogeneous systems. This chapter
presents an on-going research on developing a framework which augments and
supplements the semantic web ontology language OWL for representing and
reasoning with uncertainty based on Bayesian networks (BN), and its
application in ontology mapping.]]></description>
  <dc:date>2005-10-28</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/257/Using-Ontologies-in-the-Semantic-Web-A-Survey">
  <title><![CDATA[Using Ontologies in the Semantic Web: A Survey]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/257/Using-Ontologies-in-the-Semantic-Web-A-Survey</link>
  <description><![CDATA[The Semantic Web is well recognized as an effective infrastructure to enhance visibility of knowledge on the Web. The core of the Semantic Web is "ontology", which is used to explicitly represent our conceptualizations. Ontology engineering in the Semantic Web is primarily supported by languages such as RDF, RDFS and OWL. This chapter discusses the requirements of ontologies in the context of the Web, compares the above three languages with existing knowledge representation formalisms, and su...]]></description>
  <dc:date>2005-10-15</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/266/Using-Ontologies-in-the-Semantic-Web-A-Survey">
  <title><![CDATA[Using Ontologies in the Semantic Web: A Survey]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/266/Using-Ontologies-in-the-Semantic-Web-A-Survey</link>
  <description><![CDATA[The Semantic Web is well recognized as an effective infrastructure to enhance
visibility of knowledge on the Web. The core of the Semantic Web is ontology,
which is used to explicitly represent our conceptualizations. Ontology engineering
in the Semantic Web is primarily supported by languages such as RDF, RDFS and
OWL. This chapter discusses the requirements of ontologies in the context of the
Web, compares the above three languages with existing knowledge representation
formalisms, an...]]></description>
  <dc:date>2005-07-20</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/223/Swoogle-Searching-for-knowledge-on-the-Semantic-Web">
  <title><![CDATA[Swoogle: Searching for knowledge on the Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/223/Swoogle-Searching-for-knowledge-on-the-Semantic-Web</link>
  <description><![CDATA[Swoogle is an implemented system that discovers, analyzes and indexes
knowledge encoded in semantic web documents on the Web. Swoogle
reasons about these documents and their constituent parts (e.g., terms
and triples) and records meaningful metadata about them. Swoogle
provides webscale semantic web data access service, which helps human
users and software systems to find relevant documents, terms and
triples, via its search and navigation services.  Swoogle also
provides a customizabl...]]></description>
  <dc:date>2005-07-19</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/240/Tracking-RDF-Graph-Provenance-using-RDF-Molecules">
  <title><![CDATA[Tracking RDF Graph Provenance using RDF Molecules]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/240/Tracking-RDF-Graph-Provenance-using-RDF-Molecules</link>
  <description><![CDATA[The Semantic Web facilitates integrating partial knowledge and finding evidence for hypothesis from web knowledge sources. However, the appropriate level of granularity for tracking provenance of RDF graph remains in debate. RDF document is too coarse since it could contain irrelevant information.  RDF triple will fail when two triples share the same blank node. Therefore, this paper investigates lossless decomposition of RDF graph and tracking the provenance of RDF graph using RDF molecule, ...]]></description>
  <dc:date>2005-04-30</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/183/Swoogle-A-Search-and-Metadata-Engine-for-the-Semantic-Web">
  <title><![CDATA[Swoogle: A  Search and Metadata Engine for the Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/183/Swoogle-A-Search-and-Metadata-Engine-for-the-Semantic-Web</link>
  <description><![CDATA[Swoogle is a crawler-based indexing and retrieval system for the 
Semantic Web. 
It extracts metadata for each discovered document, and computes 
relations between documents. Discovered documents are also 
indexed by an information retrieval system which can use either 
character N-Gram or URIrefs as keywords to find relevant documents 
and to compute the similarity among a set of documents.  One of the 
interesting properties we compute is textit {ontology rank}, a measure of the impo...]]></description>
  <dc:date>2004-11-09</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/201/Intelligent-Agents-Meet-the-Semantic-Web-in-Smart-Spaces">
  <title><![CDATA[Intelligent Agents Meet the Semantic Web in Smart Spaces]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/201/Intelligent-Agents-Meet-the-Semantic-Web-in-Smart-Spaces</link>
  <description><![CDATA[We describe a smart meeting room system called EasyMeeting that explores the use of multi-agent systems, Semantic Web ontologies, reasoning, and declarative policies for security and privacy. Building on a earlier pervasive computing system, EasyMeeting provides relevant services and information to meeting participants based on their situational needs. Our system exploits the context-aware support provided by the Context Broker Architecture (Cobra). Cobra's intelligent broker agent maintains ...]]></description>
  <dc:date>2004-11-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/189/Will-the-Semantic-Web-Change-Science-">
  <title><![CDATA[Will the Semantic Web Change Science?]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/189/Will-the-Semantic-Web-Change-Science-</link>
  <description><![CDATA[Science thrives when ideas, hypotheses, data and knowledge are quickly and easily shared within disciplines and communities.  Traditionally, this was done through personal interactions, letters, lectures, and articles in professional journals.  The advent of the Internet and Web accelerated  information sharing with tools like email, online publishing, digital libraries and comprehensive search engines such as Google.  Researchers and developers are now exploring a new idea that many believe ...]]></description>
  <dc:date>2004-09-15</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/187/Towards-Distributed-Service-Discovery-in-Pervasive-Computing-Environments">
  <title><![CDATA[Towards Distributed Service Discovery in Pervasive Computing Environments]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/187/Towards-Distributed-Service-Discovery-in-Pervasive-Computing-Environments</link>
  <description><![CDATA[The paper proposes a novel distributed service discovery protocol for pervasive environments. The protocol
is based on the concepts of peer-to-peer caching of service advertisements and group-based intelligent forwarding
of service requests. It does not require a service to be registered with a registry or lookup server. Services are
described using the Web Ontology Language (OWL). We exploit the semantic class/subClass hierarchy of OWL to
describe service groups and use this semantic inf...]]></description>
  <dc:date>2004-07-15</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/174/-Authorization-and-Privacy-for-Semantic-Web-Services">
  <title><![CDATA[Authorization and Privacy for Semantic Web Services]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/174/-Authorization-and-Privacy-for-Semantic-Web-Services</link>
  <description><![CDATA[When choosing, composing, invoking or monitoring a service it may be important or even critical to understand it's security attributes and policies.  By security, we refer to a range of related aspects including authentication, authorization, confidentiality and privacy.
We discuss how to incorporate security information into the OWL-S Semantic Web service model by integrating descriptions of semantically rich policies for authorization, privacy and confidentiality.  These policies can inclu...]]></description>
  <dc:date>2004-07-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/143/A-Context-Broker-for-Building-Smart-Meeting-Rooms">
  <title><![CDATA[A Context Broker for Building Smart Meeting Rooms]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/143/A-Context-Broker-for-Building-Smart-Meeting-Rooms</link>
  <description><![CDATA[Building smart meeting rooms requires the support of
a computing system architecture. In this paper, we
describe the Context Broker Architecture (CoBrA), a
broker-centric agent architecture for pervasive contextaware
systems. CoBrA exploits theWeb Ontology Language
OWL for supporting knowledge sharing and data
fusion, uses logic inferences for resolving and detecting
inconsistent context knowledge, and provides users
with a policy language to control their private information.
Centra...]]></description>
  <dc:date>2004-03-20</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/92/A-Probabilistic-Extension-to-Ontology-Language-OWL">
  <title><![CDATA[A Probabilistic Extension to Ontology Language OWL]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/92/A-Probabilistic-Extension-to-Ontology-Language-OWL</link>
  <description><![CDATA[To support uncertain ontology representation and ontology
reasoning and mapping, we propose to incorporate
Bayesian networks (BN), a widely used graphic model
for knowledge representation under uncertainty and OWL,
the de facto industry standard ontology language recommended
by W3C. First, OWL is augmented to allow
additional probabilistic markups, so probabilities can be
attached with individual concepts and properties in an
OWL ontology. Secondly, a set of translation rules is
defi...]]></description>
  <dc:date>2004-01-05</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/149/Automatically-Generated-DAML-Markup-for-Semistructured-Documents">
  <title><![CDATA[Automatically Generated DAML Markup for Semistructured Documents]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/149/Automatically-Generated-DAML-Markup-for-Semistructured-Documents</link>
  <description><![CDATA[The semantic web is becoming a realizable
technology due to the efforts of researchers to
develop semantic markup languages such as the
DARPA Agent Markup Language (DAML). A
major problem that faces the semantic web
community is that most information sources on the
web today lack semantic markup. To fully realize
the potential of the semantic web, we must find a
way to automatically upgrade information sources
with semantic markup. We have developed a
system based on the STALKER alg...]]></description>
  <dc:date>2004-01-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/79/Using-OWL-in-a-Pervasive-Computing-Broker">
  <title><![CDATA[Using OWL in a Pervasive Computing Broker]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/79/Using-OWL-in-a-Pervasive-Computing-Broker</link>
  <description><![CDATA[Computing is moving toward a pervasive context-aware environment
in which agents with limited resources will require
external support to help them become context-aware.
In this paper, we describe an agent based architecture called
Context Broker Architecture (CoBrA) to help these agents
to acquire, reason about and share context knowledge. A
key component in our architecture is an explicit context ontology
defined using the Web Ontology Language (OWL).
This ontology models the basic c...]]></description>
  <dc:date>2003-07-15</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/paper/html/id/177/Towards-Distributed-Service-Discovery-in-Pervasive-Computing-Environments">
  <title><![CDATA[Towards Distributed Service Discovery in Pervasive Computing Environments]]></title>
  <link>http://ebiquity.umbc.edu/paper/html/id/177/Towards-Distributed-Service-Discovery-in-Pervasive-Computing-Environments</link>
  <description><![CDATA[The paper proposes a novel distributed service discovery protocol for pervasive environments. The protocol is based on the concepts of peer-to-peer caching of service advertisements and group-based intelligent forwarding of service requests. It does not require a service to be registered with a registry or lookup server. Services are described using the Web Ontology Language (OWL). We exploit the semantic class/subClass hierarchy of OWL to describe service groups and use this semantic informa...]]></description>
  <dc:date>2003-06-11</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/163/-BayesOWL-A-Probabilistic-Framework-for-Uncertainty-in-Semantic-Web-pdf-">
  <title><![CDATA[BayesOWL: A Probabilistic Framework for Uncertainty in Semantic Web (pdf)]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/163/-BayesOWL-A-Probabilistic-Framework-for-Uncertainty-in-Semantic-Web-pdf-</link>
  <description><![CDATA[Ph.D. Dissertation Defense
To address the difficult but important problem of modeling uncertainty in semantic web, this research has taken a probabilistic approach and developed a theoretical framework, named BayesOWL, that incorporates the Bayesian network (BN), a widely used graphic model for probabilistic interdependency, into the web ontology language OWL. This framework consists of three key components:

 a representation for encoding the probability distributions as OWL classes;
 a...]]></description>
  <dc:date>2005-12-05</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/126/10M-RDF-triples">
  <title><![CDATA[10M RDF triples]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/126/10M-RDF-triples</link>
  <description><![CDATA[A colleague has been testing the scalablilty of a triple store using synthetic triples.  He asked if we could package up a large collection of real tiples caught in the wild by Swoogle.  After talking a bit, it was decided that having them as a simple SQL database dump would be the most convenient form.

This SQL database dump contains a table that of about 10.4M RDF triples extracted from the Swoogle cache on June 15, 2005.  The size of the compressed file is 162M and when uncompressed its...]]></description>
  <dc:date>2005-06-16</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/12/A-Proposal-for-Pervasive-Computing-Standard-Ontology">
  <title><![CDATA[A Proposal for Pervasive Computing Standard Ontology]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/12/A-Proposal-for-Pervasive-Computing-Standard-Ontology</link>
  <description><![CDATA[This document describes a proposal for defining a standard ontology for supporting knowledge sharing and communication interoperability in pervasive computing applications.]]></description>
  <dc:date>2003-12-06</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/256/BayesOWL-binary-file">
  <title><![CDATA[BayesOWL binary file]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/256/BayesOWL-binary-file</link>
  <description><![CDATA[BayesOWL is Java-based tool. It can be used to extract taxonomies from OWL ontologies, translate taxonomies into Bayesian Networks and integrate uncertainty knowledge into BNs.]]></description>
  <dc:date>2008-12-22</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/257/BayesOWL-source-file-">
  <title><![CDATA[BayesOWL source file]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/257/BayesOWL-source-file-</link>
  <description><![CDATA[BayesOWL is Java-based tool. It can be used to extract taxonomies from OWL ontologies, translate taxonomies into Bayesian Networks and integrate uncertainty knowledge into BNs.]]></description>
  <dc:date>2008-12-22</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/281/Blackbook3-A-Graph-Analytic-Processing-Platform-For-The-Semantic-Web">
  <title><![CDATA[Blackbook3: A Graph Analytic Processing Platform For The Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/281/Blackbook3-A-Graph-Analytic-Processing-Platform-For-The-Semantic-Web</link>
  <description><![CDATA[Started in 2006, Blackbook3 is primarily an RDF middleware framework for integrating data and executing algorithms. Its purpose is to enable content providers and developers to focus on their unique problem, allowing Blackbook3 to handle the production-level, enterprise framing that is commonly duplicated. Security, web services, ingestion tools, visualizers,workflow, and analyst applications are provided as additional features. This talk will go into the current and future use cases for Bla...]]></description>
  <dc:date>2009-10-06</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/156/Integrating-Language-Understanding-Agents-into-the-Semantic-Web">
  <title><![CDATA[Integrating Language Understanding Agents into the Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/156/Integrating-Language-Understanding-Agents-into-the-Semantic-Web</link>
  <description><![CDATA[AAAI Fall Symposium session on Agents and Semantic Web presentation at Arlington Virginia Nov 4 2005]]></description>
  <dc:date>2005-11-05</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/159/UMBC-Semantic-Web-Reference-Card-v1">
  <title><![CDATA[UMBC Semantic Web Reference Card - v1]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/159/UMBC-Semantic-Web-Reference-Card-v1</link>
  <description><![CDATA[The UMBC Semantic Web Reference Card v1 is a handy "cheat sheet" for semantic web developers and programmers. It can be printed double sided on one sheet of paper and tri-folded. The card lists common RDF/RDFS/OWL classes and properties, popular namespaces and terms, XML datatypes, reserved terms, grammars and examples for encodings, etc. Please send any comments or suggestions to feedback@ebiquity.umbc.edu.
An
A4 size version is also available.

A revised version (v2) was published on No...]]></description>
  <dc:date>2005-03-12</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/160/UMBC-Semantic-Web-Reference-Card-v1-A4-">
  <title><![CDATA[UMBC Semantic Web Reference Card - v1 (A4)]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/160/UMBC-Semantic-Web-Reference-Card-v1-A4-</link>
  <description><![CDATA[The UMBC Semantic Web Reference Card v1 is a handy "cheat sheet" for semantic web developers and programmers. It can be printed double sided on one sheet of paper and tri-folded. The card lists common RDF/RDFS/OWL classes and properties, popular namespaces and terms, XML datatypes, reserved terms, grammars and examples for encodings, etc. Please send any comments or suggestions to feedback@ebiquity.umbc.edu. 
A
LETTER size version is also available.

A revised version (v2) was published ...]]></description>
  <dc:date>2005-03-12</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/resource/html/id/97/UMBC-Semantic-Web-Reference-Card-v2-A4-">
  <title><![CDATA[UMBC Semantic Web Reference Card - v2 (A4)]]></title>
  <link>http://ebiquity.umbc.edu/resource/html/id/97/UMBC-Semantic-Web-Reference-Card-v2-A4-</link>
  <description><![CDATA[The UMBC Semantic Web Reference Card is a handy "cheat sheet" for Semantic Web developers.  It can be printed double sided on one sheet of paper and tri-folded.  
The card includes the following content:

 RDF/RDFS/OWL vocabulary
 RDF/XML reserved terms (they are outside RDF vocabulary) 
 a simple RDF example in different formats
 SPARQL semantic web query language reference
 many handy facts for developers

Please send any comments or suggestions to feedback@ebiquity.umbc.edu.

A...]]></description>
  <dc:date>2005-11-04</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/273/Constraint-Generation-and-Reasoning-in-OWL">
  <title><![CDATA[Constraint Generation and Reasoning in OWL]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/273/Constraint-Generation-and-Reasoning-in-OWL</link>
  <description><![CDATA[The majority of OWL ontologies in the emerging Semantic Web are constructed from properties that lack domain and range constraints. Constraints in OWL are different from the familiar uses in programming languages and databases, and are actually type assertions that are made about the individuals which are connected by the property. These assertions can add vital information to the model because they are assertions of type on the individuals involved, and they can also give information on how ...]]></description>
  <dc:date>2008-11-17</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/216/Linked-Data">
  <title><![CDATA[Linked Data]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/216/Linked-Data</link>
  <description><![CDATA[Linked Data refers to a collection of best practices for publishing data on the semantic web. It is also, in part, a re-branding of the semantic web itself, with less emphasis on semantics, and more on RDF linkages amongst data sources. Also heavily emphasized is the proper role of web architecture (http requests and responses; 303 redirects; etc.), and the distinction between information resources (those that physically reside on the web), and non-information resources (those that exist in t...]]></description>
  <dc:date>2007-10-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/207/Using-the-Semantic-Web-to-support-knowledge-integration-retrieval-and-expansion-for-ecoinformatics">
  <title><![CDATA[Using the Semantic Web to support knowledge integration, retrieval and expansion for ecoinformatics]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/207/Using-the-Semantic-Web-to-support-knowledge-integration-retrieval-and-expansion-for-ecoinformatics</link>
  <description><![CDATA[Today, the information on the World Wide Web is growing at
an astonishing rate providing a rapidly expanding source of
valuable data. The abundance of distributed information on
the Web increases the importance of efficient organization,
sharing and retrieval of available data. This is
particularly important in scientific research where
efficient collaboration, exchange of results of experiments
and observations, fast discovery of relevant information and
data integration from differe...]]></description>
  <dc:date>2007-05-01</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/165/Semantically-Linked-Bayesian-Networks-A-Framework-for-Probabilistic-Inference-Over-Multiple-Bayesian-Networks">
  <title><![CDATA[Semantically-Linked Bayesian Networks: A Framework for Probabilistic Inference Over Multiple Bayesian Networks]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/165/Semantically-Linked-Bayesian-Networks-A-Framework-for-Probabilistic-Inference-Over-Multiple-Bayesian-Networks</link>
  <description><![CDATA[At the present time, Bayesian networks (BNs), presumably the most popular uncertainty inference framework, are still widely used as standalone systems. When the problem itself is distributed, domain knowledge has to be centralized and unified before a single BN can be created. Alternatively, separate BNs describing related sub-domains or different aspects of the same domain may be created, but it is difficult to combine them for problem solving even if the interdependent relations between var...]]></description>
  <dc:date>2006-08-02</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/129/-BayesOWL-A-Probabilistic-Framework-for-Uncertainty-in-Semantic-Web">
  <title><![CDATA[BayesOWL: A Probabilistic Framework  for Uncertainty in Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/129/-BayesOWL-A-Probabilistic-Framework-for-Uncertainty-in-Semantic-Web</link>
  <description><![CDATA[Ph.D. Dissertation Defense
To address the difficult but important problem of modeling uncertainty in semantic web, this research has taken a probabilistic approach and developed a theoretical framework, named BayesOWL, that incorporates the Bayesian network (BN), a widely used graphic model for probabilistic interdependency, into the web ontology language OWL. This framework consists of three key components:

 a representation for encoding the probability distributions as OWL classes;
 a...]]></description>
  <dc:date>2005-12-05</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/119/Integrating-Language-Understanding-Agents-Into-the-Semantic-Web">
  <title><![CDATA[Integrating Language Understanding Agents Into the Semantic Web]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/119/Integrating-Language-Understanding-Agents-Into-the-Semantic-Web</link>
  <description><![CDATA[Many intelligent agents need knowledge and information to support
their reasoning and problem solving. The World Wide Web is a vast,
open, accessible and free source of knowledge, but virtually all of it
is encoded as natural language text -- a form difficult for most
agents to directly understand.  We describe initial work on adapting a
mature language understanding agent to process Web text and publish
its output in the Semantic Web language OWL.  This approach adds
knowledge on the ...]]></description>
  <dc:date>2005-10-26</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/75/PhD-proposal-On-Boosting-Semantic-Web-Data-Access">
  <title><![CDATA[PhD proposal: On Boosting Semantic Web Data Access]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/75/PhD-proposal-On-Boosting-Semantic-Web-Data-Access</link>
  <description><![CDATA[The Semantic Web can be viewed as a collection of RDF graphs serialized by RDF documents that distributed in the Web. Its utility depends on three issues: availability (existence of data), accessibility (users can retrieve the data they want), and quality (users can judge the quality of the retrieved data). While more data are available in the Semantic Web, the latter two issues are often ignored or circumscribed due to lacking of tools and mechanisms. This dissertation proposes an ontology-b...]]></description>
  <dc:date>2005-01-19</dc:date>
 </item>
 <item rdf:about="http://ebiquity.umbc.edu/event/html/id/15/My-Experience-in-Building-Ontology-driven-Applications">
  <title><![CDATA[My Experience in Building Ontology-driven Applications]]></title>
  <link>http://ebiquity.umbc.edu/event/html/id/15/My-Experience-in-Building-Ontology-driven-Applications</link>
  <description><![CDATA[In this presentation I describe the role of OWL ontologies in pervasive computing systems, the ontology development cycle and pitfalls. A short review of the different kinds of ontology tools is also presented.]]></description>
  <dc:date>2004-02-09</dc:date>
 </item>
</rdf:RDF>
