Luca Mazzola & Riccardo Mazza

USI - University of Lugano, Switzerland
Faculty of Communication Sciences
Institute for Communication Technologies

AIED 2009 Brighton (UK) - 08 July 2009DC paper

Toward adaptive presentationsof student modelsin eLearning environments

Context

Open Learner Model

Adaptive Learning System

Learner meta-cognitive processes

Key Points

Architecture to customize the presentation of OLM to some characteristic of the learner itself

Template based:

Way of calculating indicators

'Rules' to show indicators

Way of encoding in graphic/text

Idea

To adapt the graphical representation of open student model to: preknowledge

preferences

learning goal

experience level

...

From model to infrastructure

template

\

Infrastructure

Use template to allow Instructional Designer to specify different indicators

alternative adaptation policies to apply

Role of templates

template

parameters

Guide for:

Configure

Aggregate data

Calculate indicators

Create rules for encoding

Expected output

A general architecture characterized by:

adapted presentation of learner model

supported by customized indicators

produced through the use of templates from ID

guided at run-time by input from user characteristics

Validation

3 main aspects that will be evaluated:Usability (a)

Impact of adaptive features (b)

Learner's perception of usefulness (c)

(a) IsoMetrics questionnaire(b) and (c) some empirical studiesinterviews with different stakeholders

focus groups

Next steps

- Validate some widget mockups

- Implement the architecture

- Introduce metrics to allow the proximity analysis and visualization

Feedback

GRAPPLE project - 7th EU FP http://www.grapple-project.org

Thanks for the attention

Questions?

luca.mazzola@lu.unisi.ch

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