wp 4: integration of language technology tools into ilias learning management system

WP 4: Integration of Language Technology

Tools into ILIAS Learning Management System

Alexander KillingReview Meeting, Zürich, 25 January 2008

WP4 Tasks and Goals

• Integration of LT4eL Tools developed by WP2 and WP3 into ILIAS LMS prototype. (D 4.1)

• Develope and provide documentation for a standard-technology-based interface between the LT4eL Tools and any LMS. (D 4.1)

• Goal: Simple-as-possible, well-documented and portable interface to foster re-use of the tools in other learning management systems.

Integration Timeline

May 2007 Sep 2007

Bugfix Branch for M24 Version

Dec 2007 May 2008

Main Branch: New Development for M30 Version

Dec 2006

Integration 1st Cycle

Validation2nd Cycle

Validation 1st CyclePre-Trials

Testing & Bugfixing & Improvements

Integration 2nd Cycle

Testing & Fixing

Validation3rd Cycle

M21: First Version of Deliverables M24: Second Version of Deliverables

M30: Last Version of Deliverables

Issues / Bug Tracking

• Bug Tracker is publicly accessible at Sourceforge.net

• More than 150 reports (120 solved)• Major Improvements have been made

concerning:– General Stability / Performance, especially of Semantic

Search (Concurrent Users)– Usability of Glossary Candidate Detector in ILIAS

(Navigation from LOs to glossaries)– Problems with specific Learning Objects (Annotation)– Translations of User Interface in Partner Languages

Setup

ILIAS (Prototype)Application

Logic Webservices

SOAPSOAP

Key WordExtractor

GlossaryCand. Detector

OntologyManager

LOs

Uses System

Third PartyTools

Usefunctionalities

throughSOAP

Learning ManagementSystem

Language Technology Server(Tomcat Based)

OntologyLexicons

LanguageModel

Use Case Scenarios• Upload Learning Object (LO)

• Find Keyword Candidates for LO

• Find Definitions for LO

• Search for LO(Ontology Support)

• Browse Ontology

SemanticSearch

General Web Service Operations

• sendNewLO()– Send a new learning object (from lms) to the

language technology server.

• getStatus()– Get current input processing status of a

learning object.

• deleteLO()– Delete a learning object on the language

technology server.

KWE/GCD Web Service Operations

• 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.

Search and Ontology Web Service Operations

• search()– Ontology extended (multilingual) learning

object search.

• getConceptNeighbourhood()– Get concepts and relations of a given concept

(e.g. enables ontology browsing).

User Interface Prototypes

Deliverable: Integration ReportHow to integrate LT4eL Tools into other LMS

Install Prerequisites

Download LT4eL Package

Configure LT4eL Tools

Build and Deploy

Add Webservice ClientCode to Specific LMS




Build and Deploy


• Install Java Servlet Containere.g. Apache Tomcat (open source)http://tomcat.apache.org

• Install Ant Build Tool (open source)http://ant.apache.org





Build and Deploy


• Download LT4eL Packagehttp://sourceforge.net/projects/lt4el/

• Extract Package> tar -xzvf lt4el...tar.gz





Build and Deploy


• Configure LT4eL ToolsEdit lt4el.props File (20 lines)





Build and Deploy


• Run Ant> ant





Build and Deploy


• Add Integration Code to LMS• Use Documentation for Web Services

Input- / Output-Parameters• Example Code Available for PHP and Java• SOAP Libraries Available for PHP, Java,

.NET, PERL, C++, ...





Build and Deploy


• Add Integration Code to LMS• Use Documentation for Web Services

Input- / Output-Parameters• Example Code Available for PHP and Java• SOAP Libraries Available for PHP, Java,

.NET, PERL, C++, ...

Possible Integration into all Major LMS• Moodle, Sakai, Dokeos, Claroline, ATutor,

StudIP, Olat, ...


Plans for the Final PhaseJan/Feb Integration of revised Keyword Extractor

Integration of revised Glossary Candidate DetectorSearch Results: Ranking / Relevance (0% - 100%)Show Context Text Snippets in Search ResultsSupport And/Or SearchSeparate Ontology Browsing from Search ScreenImprove Organisation of LOs on Personal DesktopFix Usability Issues

Mar BugfixingSupport Validation

Apr Support ValidationRevise Documentation

May M30 DeliverableFinal Reporting

wp 4: integration of language technology tools into ilias learning management system

Documents