More Related Content More from Claudia Ribeiro (6) Video jogos20111. © Cláudia Ribeiro- 2011 VideoJogos 2011
COLLABORATIVE NEGOTIATED DELIBERATION
PROTOCOL FOR MANAGING EMERGENT NARRATIVES IN
EDUCATIONAL ENVIRONMENTS
Cláudia Ribeiro
2. © Cláudia Ribeiro- 2011 VideoJogos 2011
Context
• Interactive Storytelling chanlleges
Interactive Drama is a computer- based fiction where a user
chooses most of the actions for the main character in a story. This
is a hard challenge, because it involves both the dynamic
generation of narrative events and the integration of user inputs
within the generation.
3. © Cláudia Ribeiro- 2011 VideoJogos 2011
Context
• Narrative Structures
• Linear Structure
• Branched Structure
Branched Narrative Structure
4. © Cláudia Ribeiro- 2011 VideoJogos 2011
Context
• Emergent Narratives
Unscripted narrative that emerges directly from the virtual
and user-controlled characters. (Aylett 1999).
The Player is not limited in his possibilities to influence the story
5. © Cláudia Ribeiro- 2011 VideoJogos 2011
Context
• Drama Management
There’s no guarantee that the stories that will emerge are
interesting and meaninfull...
The use of Emergent Narratives implies the existence of a
Drama Manager (DM) (Szilas 2003).
6. © Cláudia Ribeiro- 2011 VideoJogos 2011
Context
• Drama Management
Character-based
Guiding the low-level behaviour of a set of autonomous
agents around a story context, taking into account the
user interaction.
Plot-based
Guiding the plot unflod from a high-level view, interacting
with the several story elements: actors, world elements,
etc.
8. © Cláudia Ribeiro- 2011 VideoJogos 2011
Context
• Drama Management – Cooperative View
Agents initiative
Drama Manager initiative
9. © Cláudia Ribeiro- 2011 VideoJogos 2011
TARGET
Transformative, Adaptive, Responsive and enGaging EnvironmenT
A FP7 Integrated Project in Technology Enhanced Learning
• Key Benefits :
• Rapid Competence Development
• Acquisition of complex and soft competences
• Aimed at organization integration
• Digital natives ready
10. © Cláudia Ribeiro- 2011 VideoJogos 2011
Story landscape
• In order to effectively manage the drama, it’s
important to understand the impact of the player
actions in the story unfold.
Story Landscape (Louchart 2008)
11. © Cláudia Ribeiro- 2011 VideoJogos 2011
Fabula Model
Fabula Model (Swarje et al in 2006)
12. © Cláudia Ribeiro- 2011 VideoJogos 2011
Fabula Model revisited
• Perception Elements (Perception, Event, Internal
Element)
• Decision Elements (Goal, Action)
Goal Action
Internal
Perception Events Elements
13. © Cláudia Ribeiro- 2011 VideoJogos 2011
Plot Guidance Process
Story Case Guidance
Annotation Matching Protocol
14. © Cláudia Ribeiro- 2011 VideoJogos 2011
Plot Guidance Process
• Story Annotation
N2
N1
N2
N2
N1
N3
N3
N4
N1 N1 N4 N5
N6
time
15. © Cláudia Ribeiro- 2011 VideoJogos 2011
Plot Guidance Process
• Case Matching
N1
N2
Match
Narrative
N3
Cases
N4
N5
N6
Current Story graph
Narrative cases previously defined by
pedagogical and domain experts.
16. © Cláudia Ribeiro- 2011 VideoJogos 2011
Graph matching strategies
• Number of common nodes
Narrative Case:
Node Node Node Node
A B C D
Story Graph:
… …
Node Node Node Node Node
G H A I B
Match Confidance Level = 50%
17. © Cláudia Ribeiro- 2011 VideoJogos 2011
Graph matching strategies
• Different between the expected and the real
distance
Narrative Case:
Node Node Node Node
A B C D
Story Graph:
… …
Node Node Node Node Node
G H A I B
Match Confidance Level = 50%
18. © Cláudia Ribeiro- 2011 VideoJogos 2011
Graph matching strategies
• Number of common nodes taking into account the
weight
Narrative Case:
Node Node Node Node
A B C D
Story Graph: Weight = 100 Weight = 20
… …
Node Node Node Node Node
G H A I B
Match Confidance Level = 40%
19. © Cláudia Ribeiro- 2011 VideoJogos 2011
Plot Guidance Process Confidance level = 20%
Confidance level = 31,5%
• Case Matching
Confidance level = 60%
N1
N2
Match
Narrative
N3
Confidance level = 75% Cases
N4
N5
N6
Current Story graph
Confidance level = 0%
Narrative cases previously defined by
pedagogical and domain experts.
20. © Cláudia Ribeiro- 2011 VideoJogos 2011
Plot Guidance Process
• Guidance Protocol
Synchronize
beliefs
Goal
Negotiation
Plan
Negotiation
24. © Cláudia Ribeiro- 2011 VideoJogos 2011
Conclusions
The ability to infer
knowledge
about the story
unfold
The ability to use
The ability to this knowledge
represent to guide the
dramatic player through
situations meaningful
experiences
Supports
Emergent
Narratives
Editor's Notes Falar das limitações That is very interesting but there’s no guarantee that the stories that will emerge are interesting and meaninfull... As Szilas argues on (Szilas 2003) the use of a hierarchical Drama Manager is the reason way most of the IS systems are limited. Is a conceptual methafor to visually represent an EN. Hills represent dramatic situations that in our context means situated context related to competence learning.