umbel semantic web services
DESCRIPTION
UMBEL\'s first 11 semantic Web services and online demos show how a lightweight structure of 21000 subject concepts can provide context for inter-linking external data and ontologies. Additional value through the network effect of inherited relationships and properties is also gained as more structure and data is added. UMBEL is an excellent upper mapping and binding layer for integrating Linked Data and rich sources of named entities such as Wikipedia. The UMBEL subject concepts are derived from the OpenCyc version of the proven Cyc knowledge base.TRANSCRIPT
April 2008
Upper Mapping and
Binding Exchange Layer
UMBEL’s Eleven:
Initial Semantic Web Services
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Upper Mapping and
Binding Exchange Layer
UMBEL is . . .
. . . a lightweight reference structure for placing Web content and data in context with other data.
. . . is comprised of about 21,000 subject concepts and their relationships — with one another and with external
vocabularies and named entities.
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Upper Mapping and
Binding Exchange Layer
Subject Concepts
21,000 defined reference points in information space
Means to assert what a given chunk of content is about
Enable similar content to be aggregated
Place content in context with other content
Aggregation points for tying in named entities
Totally derived and a subset of OpenCyc, the open source version of the Cyc knowledge base
http://www.opencyc.com http://www.cycorp.com
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Upper Mapping and
Binding Exchange Layer
Deriving from OpenCyc
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Binding Exchange Layer
Named Entities
The places, events, people, objects, and specific things of the real world
Literally millions of notable instances
Each belongs to one or more subject concept(s)
Currently, the predominate basis for Linked Data
Important sources include Wikipedia (Yago) and other public sources
Can be readily mixed-and-matched with private entities
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Upper Mapping and
Binding Exchange Layer
UMBEL is Middleware
UMBEL ontology is based on RDF RDF Schema vocabulary of SKOS (Simple Knowledge
Organization System) OWL Full to aid class, domain and range relationships with
external ontologies Provides excellent interoperability
OpenCyc
(inferencing, structure and other tools)
UMBEL
Any external content
(ontologies + named entities)
Any external content
(ontologies + named entities)
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Upper Mapping and
Binding Exchange Layer
UMBEL is a Roadmap
A set of roadsigns to help find related content
A contextual way to get from one concept space to another
More detailed maps used for specific domains
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Upper Mapping and
Binding Exchange Layer
UMBEL is a Backbone
The backbone to UMBEL is the relationships amongst its subject concepts
The backbone provides the contextual graph for inter-relating content
The backbone is a reference structure for more specific domains or ontologies
The backbone is contextual, and relatively stable and constant
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Upper Mapping and
Binding Exchange Layer
Exploding the Domain
Each subject concept is an individual of the skos:Concept class, which are themselves OWL classes
Since subject concepts are classes, can relate to external ontology classes using rdfs:subClassOf and owl:equivalentClass
Under right circumstances, can also inherit properties
Through inferencing, silo data now can inherit open world understanding, therefore:
exploding the domain
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Upper Mapping and
Binding Exchange Layer
A Deep Dive into the Backbone . . .
. . . all 21,000 nodes
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Upper Mapping and
Binding Exchange Layer
A Deep Dive into the Backbone . . .
. . . top 750 nodes
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Upper Mapping and
Binding Exchange Layer
A Deep Dive into the Backbone . . .
. . . top 350 nodes
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Upper Mapping and
Binding Exchange Layer
A Deep Dive into the Backbone . . .
. . . zeroing in on ‘automobiles’
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Upper Mapping and
Binding Exchange Layer
A Deep Dive into the Backbone . . .
. . . zeroing in on ‘Saabs’
The First Eleven Web Services
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Upper Mapping and
Binding Exchange Layer
UMBEL’s Eleven
Find Subject Concepts
Subject Concept Report
Subject Concept Detailed Report
List Sub-Concepts & Sub-Classes
List Super-Concepts & Super-Classes
List Equivalent External Classes
Verify Sub-Class Relationship
Verify Super-Class Relationship
Verify Equivalent Class Relationship
Subject Concepts Explorer
Yago Ontology
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Upper Mapping and
Binding Exchange Layer
Demos, Docs & APIs
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Upper Mapping and
Binding Exchange Layer
Find Subject Concept
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Upper Mapping and
Binding Exchange Layer
Subject Concept Detailed Report
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Upper Mapping and
Binding Exchange Layer
Subject Concept Explorer
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Upper Mapping and
Binding Exchange Layer
YAGO Ontology
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Upper Mapping and
Binding Exchange Layer
Why Important to the Semantic Web?
Context, Context, CONTEXT
For Linked Data Context !
For Web Search: Infinite facets Disambiguation Cleaner navigation
For Legacy Data Stovepipes: Making the connections Closed World schemas become Open World information Context !
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Upper Mapping and
Binding Exchange Layer
Play for Yourself
Access the UMBEL Web services at:
http://umbel.zitgist.com
Thanks to for hosting us !