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