Selected Semantic Web Projects @ UMBC - PowerPoint PPT Presentation

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Selected Semantic Web Projects @ UMBC

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Web Crawler. SWD Reader. IR analyzer. SWD analyzer. discovery. digest ... Swoogle is a crawler based metadata and search system for semantic web documents ... – PowerPoint PPT presentation

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Title: Selected Semantic Web Projects @ UMBC


1
Selected Semantic Web Projects _at_ UMBC
SWOOGLE 2
Web Server
OntologyDictionary
SwoogleStatistics
SwoogleSearch
service
Web Service
IR analyzer
SWD analyzer
analysis
Ontology Dictionary
SWD Metadata
SWD Cache
  • Swoogle is a crawler based metadata and search
    system for semantic web documents (SWDs) in RDF
    and OWL.
  • Swoogle has indexed 230K documents with 37M RDF
    triples, defining 90K classes, 11K properties and
    5.8M instances.

digest
SWD Reader
The Web
Candidate URLs
discovery
Web Crawler
Swoogle Statistics
SemDis
Integrate multiple social networks Find trust
path and propagate trust across social networks
from multiple sources
Integrate knowledge from multiple sources
Discovering Complex Relationships in the Semantic
Web
  • Design, prototype and evaluate a system
    supporting the discovery, indexing, querying,
    and ranking of complex semantic relationships on
    the Semantic Web.
  • Capture and utilize provenance and trust to
    enhance relationship discovery in a distributed
    environment.
  • Obtain, prune and evaluate semantic
    relationships from multiple information sources
    using provenance and trust.
  • Explore its practical utility in various domains
    of interest.
  • CoBrA Context Broker Architecture
  • Using OWL to define ontologies for context
    modeling and reasoning
  • Taking a rule based approach to interpret and
    reason about context
  • Using a policy language and engine to control
    the sharing of user context
  • Rei Policies for Open and Dynamic Systems
  • Models deontic concepts of permissions,
    prohibitions, obligations and dispensations
  • Uses meta policies for conflict resolution
  • Uses speech acts for dynamic policy modification
  • Models different kinds of policies Security,
    Privacy, Team formation, collaboration and
    maintenance, Conversation
  • Suitable for web services, grid computing,
    pervasive computing

http//ebiquity.umbc.edu
Research partially supported by NSF, DARPA, IBM
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