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LODE 2007- Learning Object Discovery & Exchange (First International Workshop)
CRETE, September 17th, 2006
Learning Resource Referencing, Search and Aggregation
At the eLearning System Level
Gilbert Paquette
LORNET and CICE DirectorLICEF Research Center, Télé-université
www.licef.teluq.uquebec.ca/gp
Pan-canadian Applied Research NetworkPan-canadian Applied Research Network6 Universities, 4 Research Chairs, 18 partners6 Universities, 4 Research Chairs, 18 partners5 years, 7.5 M $, 120 investigators5 years, 7.5 M $, 120 investigatorsBackround Backround
1998-2002 1998-2002 POND, CAREO, CLOE, POND, CAREO, CLOE, SNet,CanLOM, SNet,CanLOM,
Explor@ RM, Splash, Aloha,…Explor@ RM, Splash, Aloha,…2002-2004 2002-2004 eduSourceeduSource: Federated Search: Federated Search
ECL, ERSECL, ERS2003-20082003-2008 LORNET Suite of ToolsLORNET Suite of Tools
PALOMA + ECL-2 + SQIPALOMA + ECL-2 + SQIGLOBE partnershipGLOBE partnershipTELOS Aggregator (Scenario Editor)TELOS Aggregator (Scenario Editor)
LORNET Presentation
PALOMA Functions(standalone or integrated in a LCMS)
LOM Metatagger (LOMPAD) : complete IEEE-LOM editor with : complete IEEE-LOM editor with profile and language interface selection.profile and language interface selection.
Multiple Repository manager: : create, modify, move, suppress create, modify, move, suppress LOM and their folders. LOM and their folders.
Rights manager: for defining/managing user, role and group rights for defining/managing user, role and group rights on repositories, folders, sub-folders or LOM. on repositories, folders, sub-folders or LOM.
Search engine:: boolean combinations of any metadata values boolean combinations of any metadata values (including classifications) to search distributed repositories.(including classifications) to search distributed repositories.
Communication API: interoperability between repositories using : interoperability between repositories using different protocols (Ex: CORBA, RMI, SOAP, web services). different protocols (Ex: CORBA, RMI, SOAP, web services). Actually uses remote JAVA object invocation.Actually uses remote JAVA object invocation.
LOM repository : :
LOM can be stored in two formats; XML and RDB .LOM can be stored in two formats; XML and RDB .
Business logic components implementing the server side API. Business logic components implementing the server side API.
On Source Forge
Paloma Web
PALOMA Search Methodes
Federating Canadian Repositories with GLOBE
UQTRARIADNE
MERLOT
LORNET Registry
SQI Registry
SQI Compliant repositories PALOMA Compliant repositories
PALOMA API
FSE Client/ PALOMA Client
FSE Engine
Edna
NIME USask
Registry to Registry 2
3
1
4
UQAM
UQAC
Federating New Repositories with GLOBE
21 900 ressources being integrated in Quebec21 900 ressources being integrated in QuebecA network of 10 Quebec universities: 6000 A network of 10 Quebec universities: 6000 College level repository Euréka : 5 000College level repository Euréka : 5 000Ministry of Education and GRICS : 10 000Ministry of Education and GRICS : 10 000Consortium national de formation en santé (CNFS) : 900Consortium national de formation en santé (CNFS) : 900
Re-integrate repositories from eduSource Re-integrate repositories from eduSource network and other sourcesnetwork and other sourcesIntegration in the CMEC: Council of Ministers of Integration in the CMEC: Council of Ministers of Education of CanadaEducation of CanadaFranco-communauté virtuellesFranco-communauté virtuellesFonds francophone des inforoutesFonds francophone des inforoutes
Some Difficulties
Learning Resources: documents, tools, Learning Resources: documents, tools, designs, persons, domain ontologiesdesigns, persons, domain ontologies
Multiple repositories and sourcesMultiple repositories and sources
Federation and Harvesting MethodsFederation and Harvesting Methods
Multiplicity of Metadata standards, profiles, Multiplicity of Metadata standards, profiles, control vocabularies, implementationscontrol vocabularies, implementations
Limitations to referencing Ex: IDLDLimitations to referencing Ex: IDLD
Towards a More Intelligent Web
First wave: First wave: STATIC TEXT / DATA EXCHANGESTATIC TEXT / DATA EXCHANGE
Second wave: Second wave: DYNAMIC / MULTIMEDIADYNAMIC / MULTIMEDIA
Third wave: Third wave: SEMANTIC SEMANTIC
PROGRAMMABLEPROGRAMMABLE
PERSONALIZABLEPERSONALIZABLE
Ontology
Semantic annotations to resources enable more “intelligent processing”: search, matching, guiding,…
TELOS High-Level View
Distributed
Service oriented
Ontology-Driven
Component Aggregation
Services and Telos operations
Platforms
Courses
Portfolios
Semantic Referencing
Technical OntologyTechnical OntologyReferencing Referencing Resources as Resources as InstancesInstancesGraphic Executable Graphic Executable ScenariosScenariosInference Engine to Inference Engine to Execute Process Execute Process Aggregates Aggregates (Scenarios)(Scenarios)
Semantic Referencing
Engineer Constructing an Aggregated Search Operation
Technologist Upgrading a Platform for Distance Education
Designer Constructing a Learning Environment
User Interface
1 – Scenario tabs
2 – Task List
3 – Environmenet
Menus
4 – Task
Description
5 – Current Task
View
6 – Actions
Buttons Bar
Domain Ontology Referencing
Two-Way Semantic Referencing
Any kind of ressource can be an instance Any kind of ressource can be an instance in more than one ontologyin more than one ontology
The technical ontology tells TELOS how to The technical ontology tells TELOS how to execute itexecute it
A domain ontology tells a search engine what A domain ontology tells a search engine what knowledge and competency is possessed by knowledge and competency is possessed by the ressourcethe ressource
Extending Search Services
Align a metadata profile with Telos Ontology Align a metadata profile with Telos Ontology using a RDFS store like SESAME.using a RDFS store like SESAME.
Add a translation operation and Reference it in Add a translation operation and Reference it in the TELOS technical ontologythe TELOS technical ontology
Aggregate this operation with the search engineAggregate this operation with the search engine
Reference the aggregate in the TELOS technical Reference the aggregate in the TELOS technical ontologyontology
Integrate the enhanced search engine in any Integrate the enhanced search engine in any scenario where it can be of usescenario where it can be of use
LODE 2007- Learning Object Discovery & Exchange (First International Workshop)
CRETE, September 17th, 2006
MERCI !
Gilbert Paquette
LORNET and CICE DirectorLICEF Research Center, Télé-université
www.licef.teluq.uquebec.ca/gp
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