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OPen Adaptive Hypermedia groupEscuela Politécnica Superior,

Universidad Autónoma de Madrid

{javier.bravo, manuel.freire}@uam.es http://tangow.ii.uam.es/opah

http://www.ii.uam.es

Outline Adaptive Hypermedia

Course framework, Authoring – Wotan / WotEd Testing & Evaluation – Simulog / ASquare Free-text / NLP - Willow, Willed Collaboration – Col-Tangow, CoMoLe

Other projects Group formation - Together Plagiarism deterrence – Ac Peer-reviewed Grading – Pacs

Collaboration with PAWS group Proposal to integrate Wotan & Cumulate

Adaptive Hypermedia

Wotan provides Course & user administration, UM monitoring Exercise creation interface Adaptation and course delivery / monitoring

Course adaptation currently mimics Tangow Default 'AdaptationEngine'; can use others

WOTAN

Access roles: admin, author, student Course structure:

tasks, rules (& seq), fragments, versions UMs: namespaces, values Adaptation: engines, expressions Session offshoring: Atenea / Willow Wotan services: programatic interfaces

WOTED

Authoring tool for Wotan/Tangow courses Information overload & (clustered) graphs Direct manipulation of structure Based on Clover – MVC for free Talks to Wotan services

Course + UM + events => monitoring

SimuLog

Allow authors to test the evaluation tool Are anomalous patterns being detected?

Generates logs imitating student behavior Uses an internal copy of Wotan No need for an actual server Author can parametrize log “randomness”

Asquare (Author Assistant)

A2 provides a higher level of abstraction Domain knowledge

Anomalies Heuristics

Where to look for anomalies A2 help to instructors who are not experts in

Data Mining. Link: simulog-a2.ppt

Willow (adaptive Atenea)

Diana Pérez, Enrique Alfonseca Teacher supplies free-text questions, and

several different correct answers for each. System extracts and generates concept

map Student answers questions,

Textual feedback, Can examine own concept map overlay

Multiple UM views; similar to Mabbot&Bull More info: pres-diana.ppt

ColTangow, CoMoLe

Rosa Carro, Estefanía Martín ColTangow

Collaborative tasks Choice of tools for tasks depending on profile Extension to rule system to support it Work-in-progress

CoMoLe Generalization for mobile devices Profile incorporates context information

Other Tools - rationale

EPS/UAM computer science; typical course

As a TA, would like to improve Group creation Plagiarism prevention Feedback, Grading, Motivation

Theory Programming assignments

Classroom time 60% 40%

Work time (est.) 20% 80%

Grade weight 70% 30%

Together

Pedro Paredes Group formation based on learning styles

Specifically, group diversity using S-Felderman Work-in-progress More information - TOGETHER.ppt

AC – Plagiarism Prevention

Similarity between two submissions Default: tokenize + compression distance Other metrics / metric combinations available

Analysis with List / Filtered graph / Individual Histograms

Submission acquisition – apples to apples Virtual filesystems, sophisticated boolean filters

http://tangow.ii.uam.es/ac - AC-0703136v3.pdf

PACS – Assignment Grading Groups in Subjects; Assignments in Subjects Teacher defines, for each assignment

Grading criteria (reviews) & Review grading criteria Formal Judge, Functional Judge Deadlines

Initial flow

Feedback: multiple [peer] reviews, clear criteria, comments and more comments

Mechanism ‘almost there’; Questions on policy

Student Teacher

Sub. open

Sub. closed reviews all assignments

Rev. closed can access reviews reviews all reviews

submits / resubmits until

rulings ok

receives 2 assignments

to review

Platforms Wotan as an activity for the KT ecosystem

(or as a portal to enable access to KT activities)

Future UM testing / datamining (Javier) Technology

Graph representation, Pdf to text, Plagiarism detection, Similarity

visualization, Java plugin mechanism, Java parsers, Java session

persistance, Jail environment, Free-text question grading (Diana)

Content Interested in C, Java, SQL content for local KT installation

Collaboration with PAWS group

The End

Questions Comments Suggestions Feedback on the sweets

(& Thanks to all interviewees)