Part 1: ______________________________ Computational Tools ....

1
Part 1______________________________Computatio
nal Tools ....
2
Co-constructive tools____________________________
___________
3
Co-constructive tools____________________________
___________
4
CardBoard - a platform for shared visual
languages ________________________________________
_
Creation of workspaces

• Private and public workspaces
• flexibly definable visual languages
• content cards
• connectors representing relations

Record Replay
Visual languageframework
5
Syntax definition as a parameter_________________
________________________
External representation
Specification
Description SemanticType Conflict MenuEntry
Conflict Type connector_card Style
bitmap Content contra2.bmp ReadOnly
true Shape circle ShapeColor 0,0,0 Link
reference, Reference,1,,0,0,0 Link
contradiction, Contradiction,-1,,0,0,0
Internal representation
Card hierarchy Interpretation of attributes
6
Example turtle puzzle_________________________
___________

• Flexible mix of shared and private workspaces
• Replicated architecturesynchronisation of fully
  functional autonomous applications (no master!)
• Jigsaw design
• plug-in interface for internal virtual agents
  (see below -gt ... )

Example Turtle puzzle with virtual player
7
Jigsaw design__________________________________
_______
from NIMIS classroom (-gt later)
8
Cooperation modes _______________________________
_________
teachercontrol
teacher students
9
Cooperation modes _______________________________
_________
teachercontrol
o
Animation how local results are propagated to
the publicly visible result workspace
teacher students
10
CSCL - contributions to C ______________________
________________

• Architectures replication, internal agents
• Designing for collaboration (jigsaw -gt Aronson,
  1978)
• Designing for flexible use -gt evolving patterns
  of usage (Gassner)
• representational engineering-gt mixed
  semantics in visual languages-gt meta-level
  analysis of representational bias (Suthers,
  1999)

11
Part 2______________________________Modeling
and Understanding ....
12
ltGoalgt_______________________________________
13
ltGoalgt_______________________________________
14
The scenario_____________________________________
___
shared and private workspaces
visual languages
face-to-face situation
15
Semantic interpretation and action analysis
________________________________________

• Workspace(s)
• cards, card networks
• Mediator
• declarative reconstruction
• graph structure (cycles, hierarchy)
• spatial structure (topology, adjacency)
• temporal structure (sequence)
• Interpreter(s)
• logical model
• arithmetical model
• problem solving analysis

workspace
mediator
interpreter
16
Analysis of cooperative problem solving
(Mühlenbrock) ___________________________________
_____
Protocol
User 1
User 2
revision
Problem solving phases
17
Example analysis_________________________________
_______
18
Visualisation____________________________________
____
19
Evaluation schema________________________________
______
If we put thishere ...
... thatwill fitthere.
indexing
prediction?
Hmm.
action-based indicators
dialogue scenes
20
Formal analysis and modeling of group
interactions_____________________________________
___

• Open validate an ontology of group interactions
• Discourse analysis vs. action-based analysis?
• Background -gt AI work on plan recognition
  reasoning about action -gt computational
  mathetics (Self, 1995) -gt formal analysis of
  human communication (Watzlawick et al.,
  1967)