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You Cannot ReSIST. Hugh Glaser Electronics & Computer Science University of Southampton DSSE, 28th February 2007. With. Ian Millard Afraz Jaffri Benedicto Rodriguez ReSIST Partners esp. Brian Randell. ReSIST. EU Network of Excellence (www.resist-noe.org) Resilient Systems

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you cannot resist

You Cannot ReSIST

Hugh Glaser

Electronics & Computer Science

University of Southampton

DSSE, 28th February 2007

slide2
With
  • Ian Millard
  • Afraz Jaffri
  • Benedicto Rodriguez
  • ReSIST Partners
    • esp. Brian Randell
resist
ReSIST
  • EU Network of Excellence
    • (www.resist-noe.org)
    • Resilient Systems
    • 15 partners across Europe
  • Resilience Knowledge Base
  • Resilience-Explicit Computing
  • Dissemination
semantic web challenge winner 2003
Semantic Web ChallengeWinner 2003
  • CS AKTive Space
    • Gather data
    • UK People, projects, publications
      • Research funding
      • Top Universities
    • Geographical presentation
  • AKT Project (www.aktors.org)
the challenges
The Challenges
  • Organisational Intelligence
    • Who is doing what where?
    • What impact are they having?
  • Integrating resources –
    • Research Councils, HEFCE, HESA, RAE, EU, Institutional DBs and web sites, ePrints, citation services…
  • Information is heterogeneous and distributed
    • Not under own control
    • Not in a common format…
  • Presenting to users
conceptual architecture
Conceptual Architecture

AKT

Reference

3store

datasources

gatherers and mediators

ontology

knowledge repository(triplestore)

applications

so what is rdf
So what is RDF...?
  • Resource Description Framework
  • W3C recommendation, comes predominantly from Semantic Web research efforts
  • A modelling language designed to represent facts about resources in the World Wide Web
  • Can be used to model any abstract domain, things do not have to be accessible on the web to be described in it
rdf basic components
RDF: Basic components
  • RDF graphs are formed by triples

subject

predicate

object

open sparql
Open - SPARQL

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

PREFIX owl: <http://www.w3.org/2002/07/owl#>

PREFIX akt: <http://www.aktors.org/ontology/portal#>

PREFIX akts: <http://www.aktors.org/ontology/support#>

PREFIX wiki: <http://resist.ecs.soton.ac.uk/wiki/>

PREFIX course: http://www.resist-noe.org/ontology/courseware#

SELECT * WHERE {

?paper akt:has-title ?title .

?paper akt:has-author ?person .

?paper <http://www.aktors.org/ontology/extension#has-abstract> ?abstract

}

LIMIT 10

important components 3store and crs
Important Components3store and CRS
  • Open source semantic store
  • Scalable
    • ReSIST - 50 million facts
    • Garlik - 1,000,000,000s
      • Uses lack of predefined schema
      • Cluster
  • Distributed queries next
    • Across external stores
slide24
Consistent Reference Service (CRS)
    • Where is the Semantic Web here?
      • Technologies used
      • Who is “Jongho Nang”?
      • Which paper is “MPEG 비디오스트림에대한 MC-DCT 영역에서의자막처리방법”?
slide28
Problems
    • Finding co-referents
      • NLP, Statistical, Structural
    • Making the knowledge available
      • Exposing a DB?
      • (Semantic) Web services
      • Home page (FOAF file)?
  • Identify co-referents
    • Against different policies - fit for purpose
      • Are false positives acceptable?
  • Distributed and federated (compare OAI-PMH)
  • Not a Naming Authority
slide29
Query by URI:
    • http://dblp.uni-trier.de/People#35ff57fb
  • Response from CRS:

<ns1:Bundle rdf:about=

"http://www.aktors.org/ontology/coref#bundle-a458455fb66f997bf4a67488dbbdbdae">

<ns1:duplicate rdf:resource="http://citeseer.ecs.soton.ac.uk/#P147667"/>

<ns1:duplicate rdf:resource="http://dblp.uni-trier.de/People#35ff57fb"/>

<ns1:insertedOn>20061126</ns1:insertedOn>

<ns1:hasCanon rdf:resource="http://citeseer.ecs.soton.ac.uk/#P147667"/>

</ns1:Bundle>

  • Need to compute fixed point across CRSes
  • But “canon” can be used
  • Maintained according to need
    • Automatic
    • By Hand
real semantic web
Real Semantic Web
  • The RKB Explorer
    • Accessing live RDF
      • Current ECS?
    • Query over multiple SPARQL endpoints
      • Triplestore per major resource
      • External triplestores
        • Universities
        • Funding agencies (CORDIS, NSF, etc)
  • CRS
    • Different sources because of different curation
    • Different types: convenience, good engineering
    • Different policies: application needs, trust
  • At last the Ontology is of some use.
future for resist
Future for ReSIST
  • Extend the use of Semantics
  • Resilient-Explicit Computing
    • Model expert knowledge
    • Model processes
    • Model components
  • Support Engineer/Scientist
    • Move effectively between
      • System design
      • Knowledge Base
      • People
    • To choose cost, characteristics, etc
  • Support Run-Time Deployment
    • Dynamic Reconfiguration
slide32

Virtual Learning Environment

Reprints

Peer-Reviewed Journal & Conference Papers

Technical Reports

LocalWeb

Preprints & Metadata

Institutional Archive

Publisher Holdings

Certified Experimental Results & Analyses

Data, Metadata & Ontologies

In the Wild

Undergraduate Students

Digital Library

Graduate Students

E-Scientists

E-Scientists

E-Scientists

Grid

Entire E-Science CycleEncompassing experimentation, analysis, publication, research, learning

E-Experimentation

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