The IRIS Risk Knowledge Portal. http://irisportal.csd.auth.gr. Georgios Meditskos , Nick Bassiliades Logic Programming & Intelligent Systems group Dept. of Informatics Aristotle University of Thessaloniki, Greece. Outline. Introduction The Risk Ontology The Risk Knowledge Portal - PowerPoint PPT Presentation
PowerPoint Presentation
The IRIS Risk Knowledge PortalGeorgios Meditskos, Nick
Bassiliades Logic Programming & Intelligent Systems groupDept.
of InformaticsAristotle University of Thessaloniki, Greece
http://irisportal.csd.auth.grLEAD BENEFICIARY: ARISTOTLE
UNIVERSITY OF THESSALONIKI AUTh (Professor Demos Angelides)IRIS
SUMMER ACADEMY 2011hosted by VCE 03 07 September 2011, Zell am See,
Austria1OutlineIntroductionThe Risk OntologyThe Risk Knowledge
PortalArchitectureFunctionalityImplementationDemonstrationNext
Steps
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria2The Role of Semantics in
IRISAll the variables associated with the Risk Assessment Process
are represented in terms of a Risk OntologyAn upper-level schema
that describes terms, relationships and restrictions of risk
identification and assessmentIt is a formal representation of the
IRIS Risk Glossary that is used for defining Risk Case Studies
(Risk Identification)
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria3Benefits of SemanticsFormal
vocabulary of terms publicly available for use by different
organizationsintegration of risk assessment practices from
different domainsDerivation of implicit/hidden relationships
through reasoningsemantic integration and consistency checking
using state-of-the-art ontology reasonersAbility to link risk terms
with existing semantic descriptions in the Web of Databuilding a
network of semantically interconnected concepts (Linked Data)
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria4The Role of the Risk
Knowledge PortalTo better manage and disseminate the case studies
of the risk registrySimplifies the definition and management of
risk knowledgeform-based editing vs. Microsoft Excel
worksheetseasier representation of risk relationships
Searching/browsing capabilities based on semantic relationshipsTo
make the underlying risk registry publicA common web reference for
risk managementContinuous updating/refinement of risk knowledgeTo
provide basic social features for the active contribution of users
to the risk definition/refinement processcomments, discussions,
etc.Future -> Integrator for Risk Assessment
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria5OutlineIntroductionThe Risk
OntologyThe Risk Knowledge
PortalArchitectureFunctionalityImplementationDemonstrationNext
StepsLEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria6Ontology RequirementsShould
be able to represent all the needed terms, relationships and
restrictions of the domaine.g. case studies, risk cases, risk
variables and their relationshipsShould be simplea complex ontology
affects reasoning and querying performancean important requirement
in our case since there is a need for online (real-time) reasoning
tasks
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria7The OntologyOWL 2 RL
Language27 classes31 propertiesA revision of a previous risk
ontology (2010)modified to meet the requirements of the portal
http://irisportal.csd.auth.gr/ontology/iris.owl
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria8Top-level Class
Hierarchy
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria9Case StudyThere are no
subclassesPropertiesacronymeditorhasRiskCases
()versionversionDate
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria10Risk Case
PropertiesappearsInCaseStudy ()codeconsistsOf (Risks)
()hasFactors ()hasComponents ()hasMechanisms ()hasImpacts
()editor
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria11Risk
PropertiesbelongsTo (Risk Case) ()hasComponent ()hasFactor
()hasImpact ()hasMechanism ()rickClass (Category)LEAD BENEFICIARY:
ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh (Professor Demos
Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03 07 September
2011, Zell am See, Austria12Risk Variable
PropertiesisVariableOf (Risk) ()with
subpropertiesisFactorOfisImpactOfisComponentOfisMechanismOf
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria13CategoryThere are no
subclassesSpecificonly instances (owl:oneOf)It is used in order to
define instances relevant to categories
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria14Basic Ontology
RestrictionsA Case Study may have zero or more Risk CasesEach Risk
Case belongs to a single Case StudyA Risk Case has one or more
RisksEach Risk belongs to a single Risk CaseA Risk has one or more
Risk Variables (Factors, Components, Mechanisms, Impacts)A Risk
Variable may belong to multiple Risks LEAD BENEFICIARY: ARISTOTLE
UNIVERSITY OF THESSALONIKI AUTh (Professor Demos Angelides)IRIS
SUMMER ACADEMY 2011hosted by VCE 03 07 September 2011, Zell am See,
Austria15OutlineIntroductionThe Risk OntologyThe Risk Knowledge
PortalArchitectureFunctionalityImplementationDemonstrationNext
StepsLEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria16Risk Knowledge PortalWeb
application (.NET 4 Web Forms)
ArchitectureLEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF
THESSALONIKI AUTh (Professor Demos Angelides)IRIS SUMMER ACADEMY
2011hosted by VCE 03 07 September 2011, Zell am See, Austria17Risk
Ontology ServiceA WSDL Web Service (in JAVA) that supports
operations for querying and updating the risk
ontologyFront-endreceives SOAP messages from the IRIS
PortalBack-endit communicates with Sesame (the triple store) and
OWLIM Lite (rule-based ontology reasoner)
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria18OutlineIntroductionThe
Risk OntologyThe Risk Knowledge
PortalArchitectureFunctionalityImplementationDemonstrationNext
StepsLEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria19OverviewUser
accountsrole-based authenticationRisk Ontology ManagementFaceted
Browsing/Filtering/SearchingFavorites
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria20User RolesThree role-based
security levelsUsers: limited access they are allowed to search,
browse/navigate the risk ontology able to comment, share ideas and
participate in discussions with other users (not implemented
yet)Knowledge Engineers: have all the privileges of Users they are
also capable of posting new case studies and risk cases or updating
the ones that they have submittedthey are not allowed to modify
posts of other usersAdministrators: have all the privileges of
Users and Knowledge Engineers they are also capable of modifying
the entire risk ontology they are responsible for the management of
the user accounts (not implemented yet)
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria21Posting New RisksTwo types
of postNew Case StudiesNew Risk Caseswith their risk variablesIn
order to post a Risk Case, the Case Study should already existeach
Risk Case must belong to a single Case Study
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria22
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria23
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria24Faceted
Searching/BrowsingUsers are able to search and browseCase
StudiesRisk CaseRisk VariableFor each type, different
facets/filters may be definede.g. give me all the Case Studies that
are associated (indirectly) with a specific Risk VariableA dynamic
SPARQL query is generated
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria25
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria26FavoritesUsers can add
Case Studies, Risk Cases, Risks and Risk Variables to their
favoriteseasy accesskeep track of updates and activities
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria27
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria28OutlineIntroductionThe
Risk OntologyThe Risk Knowledge
PortalArchitectureFunctionalityImplementationDemonstrationNext
StepsLEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria29Repository
QueriesDynamically generated SPARQL 1.1 queries based on users
activitysearching, filtering, browsing the ontologyQueries are
submitted via the Risk Ontology Service to OWLIMit supports
non-trivial inference with tens of millions of statements
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria30Sample SPARQL Query 1
Retrieve all Case Studies SELECT DISTINCT ?ID ?Acronym ?Description
?Editor ?Version ?VersionDate WHERE { ?ID rdf:type iris:CaseStudy;
iris:acronym ?Acronym; iris:description ?Description; iris:version
?Version; iris:versionDate ?VersionDate; iris:editor ?Editor. }
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria31Sample SPARQL Query
2SELECT DISTINCT ?CaseStudy ?Acronym ?Description ?Editor ?Version
?VersionDate WHERE { ?CaseStudy rdf:type iris:CaseStudy;
iris:acronym ?Acronym; iris:description ?Description; iris:version
?Version; iris:date ?date; iris:versionDate ?VersionDate;
iris:editor ?Editor. ?CaseStudy iris:hasRiskCases ?RiskCase0.
?RiskCase0 iris:hasVariables
iris:component622427b2-a64a-4e0a-83e4-83c4b309b618. }variable
idRetrieve all Case Studies that are related to the blades
deflections variableLEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF
THESSALONIKI AUTh (Professor Demos Angelides)IRIS SUMMER ACADEMY
2011hosted by VCE 03 07 September 2011, Zell am See,
Austria32UpdatesCurrently OWLIM does not support the SPARQL 1.1
UPDATE constructis used to update the ontology via SPARQLWill be
available in the next releaseWe use the native OWLIM API for adding
and removing triples
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria33Custom RulesAbility to
enhance the reasoning results with custom inferencesOWLIM supports
the definition of rules using a triple-based rule languageBoth OWL
entailments and custom rules are translated into JAVA byte-codeLEAD
BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh (Professor
Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03 07
September 2011, Zell am See, Austria34Custom Rule ExampleId:
AssociateRiskCaseAndComponentsx x rr
c-------------------------------x c
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria35Summary of
TechnologiesPortalASP.NET 4 Web formsjQuery (Ajax-based
communication)SQL SERVER 2008 R2 (for the social features)Risk
Ontology ServiceJAVA 6Sesame (triple store)OWLIM Lite 4
(reasoner)SPARQL 1.1Apache Tomcat
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria36OutlineIntroductionThe
Risk OntologyThe Risk Knowledge
PortalArchitectureFunctionalityImplementationDemonstrationNext
StepsLEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria37OutlineIntroductionThe
Risk OntologyThe Risk Knowledge
PortalArchitectureFunctionalityImplementationDemonstrationNext
StepsLEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria38Risk Assessment
CalculationPortal will become the integrator of various risk
assessment toolsThe following calculations are required to assess
overall risk probabilitysummation of the probability of occurrence
of the componentssummation of the probability of occurrence of risk
variables occurrence, i.e. factors, components, mechanisms, and
impacts
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria39Risk AssessmentThe
ontology will evolve in order to host data for probabilities and
various other numerical data valuesWill be re-inserted from older
ontology versionsSpecialized custom rules will be used to summate
the values provided by the users or other toolsSpecial APIs will be
used to communicate with these other tools (e.g. Matlab)Database
will hold past risk assessment cases if neededLEAD BENEFICIARY:
ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh (Professor Demos
Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03 07 September
2011, Zell am See, AustriaMore Social FeaturesUser
profilesCommentsConnections among users
LEAD BENEFICIARY: ARISTOTLE UNIVERSITY OF THESSALONIKI AUTh
(Professor Demos Angelides)IRIS SUMMER ACADEMY 2011hosted by VCE 03
07 September 2011, Zell am See, Austria41
