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Semantic Web Futures

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this creates a web of models (semantics) much like the current web is a web of texts ... Short courses becoming available. XML courses proliferating ... – PowerPoint PPT presentation

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Title: Semantic Web Futures


1
Semantic Web Futures
  • Coming soon, coming later
  • Jim Hendler
  • Hendler _at_ cs.umd.edu
  • http//www.cs.umd.edu/hendler

2
The Semantic Wave
(Berners-Lee, 03)
3
Future of the Semantic Web
4
The Semantic Web Revolution
(w/apologies to Larsen)
5
The World Wide Web
  • On the order of 108 users
  • Used in every country on Earth
  • On every continent (incl. Antarctica), Mars link
    is in transit!
  • A tiny percentage is trained in any way
  • On the order of 1010 indexed web resources (text)
    in Google etc
  • Essentially Infinite if one includes dynamic
    web pages
  • Massively distributed and open
  • Anyone can play -- To someone on the Web, youre
    the nut
  • A set of protocols and languages driven by a
    strong standards approach
  • Implementation and platform independence crucial
  • World Wide Web Consortium the most prominent

The miracle is the network effect
6
Network Effect
  • Sem Web languages allow the linking of
  • multimedia
  • databases
  • Services
  • meta-data repository
  • Or any other Web resource!

Hendler 03- Science
7
Network effect II
  • The models can also link to other Semantic Web
    models
  • partial mappings just fine
  • this creates a web of models (semantics) much
    like the current web is a web of texts
  • Network effect as mappings provide links to
    linked resources

BioMedCentral Article
Oncogene(MYC) Found_In_Organism(Human).
Gene_Has_Function(Transcriptional_Regulation).
Gene_Has_Function(Gene_Transcription).
In_Chromosomal_Location(8q24).
Gene_Associated_With_Disease(Burkitts_Lymphoma).
Vocabulary (RDFS)
NCI Cancer Ontology (OWL)
ltmetagt ltclassificationsgt ltclassification
type"MYC subtype"old_arx_id"gtbcr-2-1-059lt/class
ificationgt lt/classificationsgt lt/metagt
BioMedCentral Metadata (XML)
Web data set (XHTML)
8
Now Tools for tool builders
  • It is much easier to get started than it was a
    year ago,
  • Parsers, APIs, triple-stores
  • http//www.daml.org/tools
  • http//www.w3.org/RDF
  • End to end no longer takes a miracle
  • Prototype OWL website took three undergraduates
    about 1 month.
  • But end user tools just starting to emerge

9
Now Semantic Web portals
10
Next stepUser tools(aka where does the markup
come from?)
Tools for marking up images, figures and other
non-textual data must be built in a way that
they tie into the "business processes" of the
working scientist -- that is, rather than
learning a whole new set of tools, the basic web
tools of the scientist must include mechanisms
that make it EASIER for the scientist to produce
web content (appropriately markedup) while
authoring papers, performing experiments,
creating and logging data, and the other day to
day activities of the working researcher.
Even more true for eGov!
11
New Info Management Paradigms
12
And other cool stuff
13
Marking up (sub)images
14
And the info flows
15
And the info flows correctly
16
Coming sooner than you may think
17
Real Soon shared calendaring
18
Soon Tools for visualization and use
A number of tools for querying, browsing and
visualizing SW data are being developed
19
Soon Grounding WSDL
input xsdcomplexoncogene
Oncogene(MYC) Found_In_Organism(Human).
Gene_Has_Function(Transcriptional_Regulation).
Gene_Has_Function(Gene_Transcription).
In_Chromosomal_Location(8q24).
Gene_Associated_With_Disease(Burkitts_Lymphoma).
output xsdcomplexRiskType
ltowlClass rdfabout"http//annotation.semanti
cweb.org/iswc/iswc.damlRiskIndicator"gt
ltrdfssubClassOfgt ltowlRestrictiongt
ltowlonProperty rdfresource"http/
/annotation.semanticweb.org/iswc/iswc.damlname"/gt
ltowlallValuesFrom
rdfresource"http//www.w3.org/2000/10/XMLSchema
string"/gt lt/owlRestrictiongt
lt/rdfssubClassOfgt lt/Classgt
We can add services for even more network effect
(Mapping to OWL expected to be released in WSDL
1.2 spec)
20
Use Semantics for Composition
Print the directions to a pharmacywhich has a
medicine that curesthe symptoms that I will tell
you (in French)
Scientific American sketched a medical
examplefor coordinating schedules between two
people dealingwith a parents medical treatment -
Demoed at WWW 2003
21
Semantic Web Services
Advanced information management capabilities
Discovery, Filtering, Composition
22
Later Use the links
23
Research today
Are there any mountains in Europe bigger than Mt.
Blanc?
document
service
database
24
Adding Proof
25
Adding Trust
26
Web queries - for real!!
How many train lines are there in Tokyo?
  • Query processed 73 answers found
  • Google document search finds 235,312 possible
    page hits.
  • Http//wwwjp/JRTrains.html claims the answer is
    27
  • A database entitled JRTLDB can be queried for
    the answer, but you will need Japanese Railroad
    Access Code.
  • A computer program that can compute that number
    is offered by the Tokyo Digital City information
    analysis, click here to run program.
  • ...

27
Web agents (like travel agents)
  • Query processed
  • A satellite image taken yesterday at 10 AM is
    available on the web at http//
  • A new satellite image, to be taken today at 10AM,
    will be available for 100 click here to
    authorize transfer of funds and obtain image (you
    will need a valid credit card number from one of
    the following providers )
  • In an emergency situation, a Coast Guard observer
    plane can be sent to any location within the area
    you indicate. Service Note You will be
    responsible for cost of flight if the situation
    does not result in emergency pickup. Click Here
    for more information.
  • A high altitude observer can be sent to your
    location in 13 hours. Click here to initiate
    procedure. (You will need to provide US military
    authorization, A valid military unit code, and
    the name of commanding officer)
  • A service entitled commercial service for
    providing satelite images is advertised as
    becoming available in 2004. See http// for more
    information

28
How do we make this happen?
  • Start now.

29
Learning Training
  • As with any new technology, hands on is needed
    for learning
  • Short courses becoming available
  • XML courses proliferating
  • Sem Web courses becoming available (contact me)
  • Many ontologies, tools and demos on line
  • http//www.daml.org a good starting place
  • Books coming along
  • The Semantic Web Daconta, Obrst, Smith
  • Semantics in Business Systems, McComb
    (forthcoming)
  • OReilly XML and RDF book OWL soon, we hope
  • Textbooks underway
  • New Journal coming Oct 03
  • Web Semantics Science, Services and Agents on
    the World Wide Web - Elsevier Publishing

30
Get involved
  • Taxonomy and Semantics SIG
  • http//km.gov
  • October 8 - Indexing and Thesauri workshop
  • DC area
  • Meeting of Core planning group
  • TBD
  • Contact information is on the web site

31
Conclusion
  • Semantic Web technologies are here now and being
    used
  • Dont be afraid to get started
  • Semantic Web technologies have a promising future
    and an exciting potential
  • Keep your eye on the feed from research
  • Together we can make it happen!

32
MIND SWAP
  • Maryland Information and Network Dynamics
    Laboratory, Semantic Web and Agents Project
  • J. Hendler
  • B. Parsia
  • Jennifer Golbeck
  • Aditya Kalyanpur
  • Grecia Lapizco-Encinas
  • Katy Newton
  • Corporate Research Partners
  • Fujitsu Laboratory of America, College Park
  • Lockheed Martin Advanced Technology Laboratories
  • NTT Corp
  • SAIC Corp.
  • Govt Funding
  • US Army Research Laboratory, NSF, DARPA, Another
    Agency
  • http//owl.mindswap.org (OWL-powered Semantic
    Web page)

Evren Sirin Ronald Alford Ross Baker
Amy Alford Matt Westhoff Kendall Clark
Nada Hashmi
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