BONy: a knowledge centric collaborative learning platform

social.bonynetwork.eu

Alfio Massimiliano Gliozzo, Concetto Elvio Bonafede and Aldo GangemiSTLAB - ISTC - CNR

supported by the BONy project, financedby the Education and culture DG of the EU, grant

agreement N 135263-2007-IT-KA3-KA3MP, under the

Lifelong Learning Programme 2007 managed by EACEA.

What is BONy?

• Technology enhanced platform for collaborative learning• Semantic technology for

– System integration• DOKEOS: Learning Content Management System • Spree: social network

– develop advanced functionalities• User Profiling• Expert Finding• Semantic Search• Mentoring: Generation of personalized learning paths

• GOAL: make it work!

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WHAT IS BONY?

UNITS

1. Basic Concepts

2. European project cycle

3. European Project Management Methodology

4. Legal aspects

5. Exploitation

Project Cycle Management

Italian

Spanish

Polish

Greek

Catalan

France

German

English

Hungarian

Slovak

Czech

The BONy community

WHAT IS BONY?BONy Educational

Social Network

Expert Finding Based on http://spree.dai-labor.de/

Semantic Technology in BONy

Principles

• Re-usability: – when adapted to a new course, the OWL schema of the

ontology is preserved – minimize the adaptation costs to new domains;

• Modularity– Topic Ontology– User Ontology– eLearning Ontology

• Best practices: – the ontology has been designed by specializing Ontology

Design Patters (ODP)

The Bony Ontology

Building the topic ontology

• A domain expert manually selected relevant keywords for each English SCO

• Looking for corresponding wikipedia pages and their categories– 54 TOPICs– KW hasTopic TOPIC

• Taxonomy is inspired by the wikipedia hierarchy

• Keywords has been translated in all remaining languages

User Profile 1/2

User profile 2/2

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Ask for support / automatic Expert finding

WHAT IS BONY?BONy Educational

Social Network

Connecting Users and SCOs

• eLearning Ontology: – Describes Shared Content Objects (SCO)

• type of electronic support adopted• dependencies between learning objects• time required for learning

– SCO hasTopic TOPIC• User Ontology:

– Represents user profiles– AGENT knowsTopic TOPIC– 5 Levels of expertise

• knowsBasic • …• knowsPerfect

Mentoring: personalized learning paths based on the

user profile

Implemented by SPARQL queries

Conclusion

• Semantic technology has been used for– System integration– Advanced functionalities

• BONy 3.0: Knowledge Centric Authoring tool– learning objects are generated from existing

Linked Data– Using Ontology design patterns for aggregating

Linked Data

BONy: a knowledge centric collaborative learning platform

social.bonynetwork.eu

Alfio Massimiliano Gliozzo, Concetto Elvio Bonafede and Aldo GangemiSTLAB - ISTC - CNR

supported by the BONy project, financedby the Education and culture DG of the EU, grant

agreement N 135263-2007-IT-KA3-KA3MP, under the

Lifelong Learning Programme 2007 managed by EACEA.

Semantic Technology in BONy

Inspiring Principles

• re-usability: – when adapted to a new course, the OWL schema of the

ontology is preserved – minimize the adaptation costs to new domains;

• modularity: – three modules

• eLearning content• social network• Topics

• best practices: – the ontology has been designed by specializing Ontology

Design Patters (ODP)

The Bony Ontology

Ontology Design Patterns are used

The BONy ontology• Topic Ontology:

– Represents topics covered by the eLearning course– TOPIC broader/narrower than TOPIC

• eLearning Ontology: – Describes Shared Content Objects (SCO)

• type of electronic support adopted• dependencies between learning objects• time required for learning

– SCO hasTopic TOPIC• User Ontology:

– Represents user profiles– AGENT knowsTopic TOPIC– 5 Levels of expertise

• knowsBasic • …• knowsPerfect

Building the topic ontology• A domain expert manually selected

relevant keywords for each English SCO– 46 SCO – Average 5 KWs/SCO– SCO hasKeyword KEYWORD

• Find wikipedia pages for each keyword and corresponding wikipedia categories– 54 different TOPIC– KW hasTopic TOPIC

• Taxonomy is inspired by the wikipedia hierarchy

• Keywords are translated in different languages

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WHAT IS BONY?Registration

What is BONy?User Profiles

35

Ask for support / automatic Expert finding

WHAT IS BONY?BONy Educational

Social Network

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Ask for support / automatic Expert finding

WHAT IS BONY?BONy Educational

Social Network

Questions

Experts

Most Related

Notebook Entries

37

Italian

Spanish

Polish

Greek

Catalan

France

German

English

Hungarian

Slovak

Czech

WHAT IS BONY?

38

Interfaces for:

PC, Laptop, NetBook http://social.bonynetwork.eu

PDAhttp://mobile.bonynetwork.eu/

TARGETED END-USERS

E-learning & Mobility

Mentoring: personalized learning paths based on the

user profile

Reasoner implemented by SPARQL query

User Profile 1/2

User profile (1/2)

Multilingual Search

Technology:NLP, Lucene

Mentoring

• Generation of personalized learning paths • Goal: recommending slides minimizing the • User profile is represented in the same topic

space of learning objects• Sparql queries are used to select objects

having different topics

Expert finding 1/2

Expert finding 2/2

BONy 3.0: project proposal

• Knowledge Centric Authoring tool– Linked open data are the building blocks of learning objects– Ontology design patterns for aggregating linked data – Learning objects are dynamically rendered on a variety of media (web

pages, PDA, speech)• Agent based services

– Automatic generation of questionnaires– Agent assisted tutoring– Semantic social network (Partially in BONy)

• From search to recommending– Personalized generation of learning paths (already in BONy)– Related learning objects– Semantic browsing of content