WP 4: Integration of Language Technology Tools into ILIAS Learning Management System

1
WP 4 Integration of Language Technology Tools
into ILIAS Learning Management System

• Alexander Killing
• Project review, Utrecht, 1 Feb 2007

2
WP4 Tasks and Goals

• Integration of LT4eL Tools for semi-automated
  metadata generation, definitory context
  extraction and ontology supported extended data
  retrieval into a learning management system.
  (prototype based on ILIAS LMS)
• Developing and providing documentation for a
  standard-technology-based interface between the
  language technology tools and a learning
  management system.
• Goal Simple-as-possible, well-documented and
  standards-based interface to foster re-use of the
  tools in other learning management systems.

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WP4 Dependencies

• WP 1 Collection and preparation of learning
  objects.
• WP 2 Delivers keyword and glossary
  functionalities to be integrated.
• WP 3 Delivers search and ontology
  functionalities to be integrated.
• WP 5 Evaluation and validation.

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M12 Deliverables

• Integration Plan(Part of WP2/WP3 reports)

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M24 Deliverables

• Prototype of ILIAS learning management system
  with integrated language technology tools
• Webservice Interface Documentation
• Integration Guidelines

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Integration of functionalities
Development Server (SVN)
Content Portal
KW/DC
Ontology
Interface
LOs
Code(WP2)
Code/Data(WP3)
Code(WP4)
Migration Tool
Nightly Updates
Migration Tool
Use functionalitiesthroughSOAP
ILIAS Server
Java Webserver (Tomcat)
Application Logic
Webservices
nuSoap
LOs
Axis
KW/DC/OWS JavaClassesand Data
Evaluate functionalitiesin ILIAS
ThirdPartyTools
User Interface
Servlets/JSP
Evaluatefunctionalities directly
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Final Setup
Learning ManagementSystem
Language Technology Server(Tomcat Based)
Use functionalitiesthroughSOAP
ILIAS (Prototype)
Application Logic
Webservices
nuSoap
LOs
Axis
KE
KeywordExtractor
Uses System

• Use Case Scenarios
• Upload Learning Object (LO)
• Find Keyword Candidates for LO
• Find Definitions for LO
• Search for LO(Ontology Support)
• Browse Ontology

LanguageModel
DF
DefinitoryContext Finder
Ontology
OMS
OntologyManager
Third PartyTools
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Results of Integration Planning Meeting

• 12 starting operations for web service interface
• Derived from WP2 / WP3 Use Cases
• User Interface Prototypes
• Incremental Document Handling
• Starting with LT4eL-Ana XML Documents
• (X)HTML / Text Documents (Single File)
• (X)HTML / Text Documents (Multiple Files)
• Other formtats PDF, SCORM, Word?, ...

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Web Service Operations, Core

• sendNewLO()
• Send a new learning object (from lms) to the
  language technology server.
• getStatus()
• Get current input processing status of a learning
  object.
• getDomains()
• Get all available domains.
• deleteLO()
• Delete a learning object on the language
  technology server.

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Web Service Operations, KE/DF

• findKeywordCandidates()
• Generate list of keywords for a learning object.
• sendApprovedKeywords()
• Send user approved keywords back to language
  server.
• findDefinitionCandidates()
• Generate list of definitions for a learning
  object.
• sendApprovedDefinitions()
• Send user approved definitions back to language
  server.

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Web Service Operations, OMS

• findOntologyAnnotation()
• Provides ontology fragments for annotation of a
  learning object.
• sendApprovedOntologyAnnotation()
• Send user approved ontology annotation back to
  language server.
• getConceptNeighbourhood()
• Get concepts and relations of a given concept
  (e.g. enables ontology browsing).
• search()
• Ontology extended (multilingual) learning object
  search.

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User Interface Prototypes
13
User Interface Prototypes
14
User Interface Prototypes
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Roadmap

• Date Tasks
• 2006-11-30 First implementation of application
  logic operations
• 2006-12-31 First implementation of web service
  operations
• 2007-01-31 First implementation of web-based
  evaluation user interface
• 2007-02-28 First integration into LMS on basis
  of web service operations
• 2007-02 - 2007-05 Testing, incremental
  improvement and extension of features,
  documentation
• 2007-05-31 Milestone Integration Completed