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Advanced use RDFS
Mariano Rodriguez-Muro,
Free University of Bozen-Bolzano

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Disclaimer
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License
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A few examples from these slides has been taken from
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This work is licensed under a
Creative Commons Attribution-Share Alike 3.0 License
(http://creativecommons.org/licenses/by-sa/3.0/)
Semantic Web for the working Ontologist. Chapter 6.
Some of the slides on the use of taxonomies are based on:
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http://info.earley.com/webinar-replay-business-value-taxonomyaug-2012

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Reading material
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Semantic Web for the working Ontologist. Chapter 6
http://proquest.safaribooksonline.com/book/-/9780123859655

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Uses of RDFS (and ontology)
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Application oriented uses
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Application behavior without coding
Data integration through vocabulary alignment, integration
Controlled vocabularies
Formal ontology:
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Definition of taxonomies, e.g., parent/broader, child/narrower,
etc.
Taxonomy/Ontology can be used to create business/data
value
Taxonomy can open the door for new kinds of data
management

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Enterprise

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Content Management
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Increase the control/productivity that the enterprise has over
their data to increase internal productivity, customer
satisfaction, etc.
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Why not “just Google” your sites? These do not work in the
enterprise
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Back links and
Statistics
In the enterprise, granularity is small

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Search enhancement
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Search enhancement
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Examples:
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Finding content (DB., entries, document collections, etc) relevant
to a query, but tagged with an alternative name
Key is search by metadata and organized metadata
Add synonyms to a query
Language/translation
Include more general terms
Precision vs Recall. The focus here is recall, get all “relevant”
content.

+ Browsing and Navigation: Search overload
User doesn’t know what he
wants precisely

+ Browsing and Navigation: Search overload
Facets
Give control to the user

+ Browsing and Navigation: Search overload
Note: Taxonomy is not navigation

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Browsing and navigation, results
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Faceted navigation in e-commerce:
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Findability
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Conversions
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Sales
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Market size
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Customer satisfaction
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etc.
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Studies show that faceted navigation in enterprise content
easily increases all these aspects in hard benchmarks.
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See presentation by Earley & Associates

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Content Reuse – Taxonomy in
Content Management
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Many use cases
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Examples, knowledge management, content finding, etc.
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Look at business processes, group at targeted users
Useful when knowledge is large, and it needs to be accessible fast
A Taxonomy can be used to
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Define content and document types (e.g., “Article”)
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Define the fields that will describe attributes (e.g., tag a
document with “Industry”)
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Define the actual values of certain fields (e.g., the list of values for
the attribute “Industry” might include “Construction”,
“Information Technology”, “Utilities”, etc.)

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Example: Knowledge management
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Portal development
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Service a functional organization, e.g., call centers, technical field
services
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Key: Changing content
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Requires: Access to the latest's and best value always
Call centers representatives required 50% less time to solve a problem
with correctly organized information.
Earley & Associates, 2012
Average reactive time per incident: 10.35hrs
Knowledge Helpful Average Reactive TPI: 5.45hrs
Knowledge Helpful Time Saved Per Incident: 43%

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Content reuse: Improved
Management of Marketing Assets
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Type: Magazine Ads
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Channel: Print
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Target Demographic: Parents
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Country: US
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Language: English
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Concept: Rebellion
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Brand: Settletra
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Do your kids:
 Have discipline problems?
 Trouble paying attention?
 Trouble getting along?
Maybe It’s time to findout how
Settletra can help

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Content reuse

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Content reuse: result
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Requirement
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Question
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Do we have material for this
campaign
No?
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Images for campaigns
Produce new material
Use taxonomies to improve
search
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$1.25M /yr through digital
asset management and
increased image reuse (Earley
& Associates)

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Public Entities

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The power of large, curated
taxonomies
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Many large taxonomies developed in the context of large
national and international projects
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Large amount of knowledge
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Clean knowledge (manually curated)
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General knowledge (cover domains rather than applications)
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Reusable to provide valuable services

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Taxonomies resources
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Taxonomy resources:
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http://www.taxonomywarehouse.com/
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http://www.taxobank.org/
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http://www.taxotips.com/resources/sources/
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http://id.loc.gov/
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http://id.loc.gov/authorities/subjects/sh85112348.html
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http://bioportal.bioontology.org/
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http://www.w3.org/2001/sw/wiki/SKOS/Datasets
Some of these are actually
ONTOLOGY repositories

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Taxonomies in Biology
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Taxonomies in Biology have been developed for a long time
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Large investment world wide
Deployed in applications today
Include wide range of Biology subjects
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Medical terminologies
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Macro and Micro biology (Genes, Human Anatomy)
Etc.
Started as knowledge management/sharing, now
applications are being built.

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Download
Traverse
Search
Comment
Mapping
Services
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Create
Download
Upload
Widgets
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Tree-view
Auto-complete
Graph-view
Ontology
Services
http://rest.bioontology.org
Views
Annotation
Term recognition
Data Access
Fetch “data”
annotated with a
given term
http://bioportal.bioontology.org

Annotation service
Process textual metadata to automatically tag
text with as many ontology terms as possible.
90 million calls,
~700 GB of data

Annotating Clinical Text

Resource index
Pubmed Abstracts
Adverse Events (AERS)
GEO
:
Clinical Trials
Drug Bank

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Semantic Annotation services
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Semantic Annotations services are very wide spread
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Topics include:
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General purpose (based on DBPedia URI’s for example)
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Specialized
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Music
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Movies
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Libraries
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Biology
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http://lmgtfy.com/?q=semantic+annotator
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http://dbpedia-spotlight.github.com/demo/index.html

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Summary

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Summary: RDFS
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Ontology languages,
Ontologies
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RDFS language and inferences
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Common use patterns of RDFS
inferences
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Taxonomies
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Their value and use in the
enterprise
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Collections and applications