© 2008 by andrew webb, interface ecology lab. meta-metadata: an extensible semantic architecture...
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© 2008 by Andrew Webb, Interface Ecology Lab.
meta-metadata: an extensible semantic architecture for
multimedia metadata definition, extraction, and presentation
andruid kerne, sashikanth damaraju,
bharat kumar, and andrew webb
interface ecology labdepartment of computer science & engineeringtexas a&m university
© 2008 by Andrew Webb, Interface Ecology Lab.
information sources
large number of elements
human experience: difficult to explore
© 2008 by Andrew Webb, Interface Ecology Lab.
metadata semantics
metadata about elements within a collection
used to search, browse, collect and explore
find related information
© 2008 by Andrew Webb, Interface Ecology Lab.
unified framework
problem: heterogeneous sources
solution: language for authoring extensible
metadata structure
© 2008 by Andrew Webb, Interface Ecology Lab.
meta-metadata
language defines metadata
life cycle representation
extractionpresentation
authored in XML
programming not required
© 2008 by Andrew Webb, Interface Ecology Lab.
architecture
interactive visualizationinformation semantics
author meta-metadata
definitions
meta-metadatainstance
extractmetadata
information agent (crawler)
compositionagent
metadatainstance
compositionspace
in-context metadata
metadata classdeclarations
XPath and regularexpressions
weights
similaritymeasures
aspects ofexperience
document
surrogates
document URL extracted
metadata
meta-metadata repository
facet maps
© 2008 by Andrew Webb, Interface Ecology Lab.
strongly typed metadata fields
nested structure
meta-metadata > metadata translation
metadata representationpublic class AcmPortal{ @xml_nested String title; @xml_nested ParsedURL fullText; @xml_map HashMapArrayList <String, Author> authors;…}
public class Author{ @xml_nested String name; @xml_nested String affiliation; @xml_nested ParsedURL resultsPage;...}
© 2008 by Andrew Webb, Interface Ecology Lab.
metadata extraction
unique by field per a source
XPath expressions
interactive visualizationinformation semantics
author meta-metadata
definitions
meta-metadatainstance
extractmetadata
information agent (crawler )
compositionagent
metadatainstance
compositionspace
in-context metadata
metadata classdeclarations
XPath and regularexpressions
weights
similaritymeasures
aspects ofexperience
document
surrogates
document URL extracted
metadata
meta-metadata repository
facet maps
© 2008 by Andrew Webb, Interface Ecology Lab.
metadata visualization
properties describing display and interaction
field ordernavigatesTo
hidealwaysShow
© 2008 by Andrew Webb, Interface Ecology Lab.
combinFormationmixed-initiative creativity support tool
surrogates & information composition
© 2008 by Andrew Webb, Interface Ecology Lab.
in-context metadata
contextual display and editing
support for meta-metadata and nested structure
© 2008 by Andrew Webb, Interface Ecology Lab.
demo
© 2008 by Andrew Webb, Interface Ecology Lab.
conclusion
diverse metadata from heterogeneous sources
meta-metadata defines life cycle of metadata
author XML, no programming
in-context visualization
developed as reusable components
© 2008 by Andrew Webb, Interface Ecology Lab.
questions and thoughts
http://ecologylab.net/beta/cf