Using Perspective in Narrative Learning Environments

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Using Perspective in Narrative Learning Environments. Ana Vaz and Ana Paiva INESC-ID. Summary. Motivation question Approach followed Victec and the FearNot! demonstrator Perspective Filter Implementation in FearNot! Future work. Motivation Question. - PowerPoint PPT Presentation

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  • Using Perspective in Narrative Learning Environments

    Ana Vaz and Ana PaivaINESC-ID

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  • SummaryMotivation questionApproach followedVictec and the FearNot! demonstratorPerspective FilterImplementation in FearNot! Future work

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  • Motivation Question

    How can we influence the emotional reactions of users of a virtual storytelling environment through the use of perspective?

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  • Perspective in Narrative[Branigan92]:Narrative level represents the events that occur in a story; Changing the perspective implies altering the events and therefore the story.Narration level how the story is presented.Different perspectives of the same story can be provided through the presentation.

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  • Approach FollowedIntroduce perspective without changing the actions of the characters (i.e., influencing the narration level);Exaggeration. Leads to more impact, which leads to different perceptions of the same events.

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  • Victec and the Bullying Problem[Paiva04]:Goal: the prevention of bullying behaviour.

    Approach: Virtual Learning Environment;Simulate bullying situations;Induce empathic relations between the child and the characters.

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  • FearNot![Dias05]:Demonstrator of the ideas proposed by Victec;Software program aimed at children from 8 to 12;Interactive environment with intelligent autonomous agents;Emergent narrative is a consequence of characters behaviour (which is generated using an emotional model);Episodic narrative.

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  • Perspective FilterAllows the generation of perspective in a narrative environment;Filters the visualisation of the story as it unfolds, which means it can be used with emergent narratives;Main concepts:Perspective types;Character roles and personality traits;Perspective parameters.

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  • Perspective Filter (cont.)Determines the focalizor [Bal85, Branigan92];Receives an instruction to an action and looks at:who performs it;what his relationship with the focalizor is;his personality traits (to see what is expected from him).Returns the appropriate perspective parameters.

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  • Perspective TypesSelf-perspective the focalizor emphasises his own actions.

    Friendly perspective the focalizor enhances positive/neutral actions of his friends.

    Unfriendly perspective - the focalizor enhances negative actions of his enemies.

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  • Character Roles and Personality TraitsCharacters are identified with their functional roles;Each role is defined by a pattern in the 5 personality traits (Aggression, Hot-temper, Self-esteem, Shyness and Anxiety);Relationships between the roles are established, either friendly or unfriendly. Eg.: bully and victim unfriendly bully and assistant friendly

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  • Perspective ParametersCamera Information: shot, angle, target.Allows:to give more or less detail;to change the level of impact on the participant.Action Intensity: shapes the perception of intentionality. (E.g., we can see slight push or a violent one.)

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  • Implementing in FearNot!

    The agents control module communicates with the world module;The Perspective Filter sees the changes that will affect the world and generates the appropriate parameters, that he send to the world module.

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  • Personality Traits of Victec Characters

    BullyVictimBully\VictimAssistantDefenderOutsiderAggressionHot-temper Self-esteem ShynessAnxietyHighNormalHighLowLowLowLowLowHighHighHighHighLowLowHighHighNormalNormalLowLowLowLowNormalNormalNormalNormalNormalNormalNormalNormal

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  • Relation between Personality Traits and Actions in VictecNegative (or non-prestigious) Actions:Cry Anxiety, Self-esteem;Mock Aggression, Shyness;Punch Aggression, Hot-temper;Push Aggression, Hot-temper. Slap Aggression, Hot-temper;Swipe Aggression, Anxiety;

    Neutral Actions:Walk Self-esteem, Shyness;Pick Aggression.

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  • Example in FearNot!Walk with high confidenceWalk with low confidence

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  • Without the Perspective Filter

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  • The Perspective of the Victim

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  • The Perspective of the Bully

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  • Future WorkImprove the camera module,Influence speech,Evaluate the Perspective Filter;Include new parameters, such as sound.

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  • Some References[Bal85] M. Bal. Narratology: Introduction to the Theory of Narrative. University of Toronto Press Inc., 1985. [Branigan92] E. Branigan. Narrative Comprehension and Film. Routledge, 1992. [Dias05] J. Dias. Fearnot!: Creating emotional autonomous synthetic characters for empathic interactions. Masters thesis, Instituto Superior Tcnico, March 2005. [Paiva04] A. Paiva, J. Dias, D. Sobral, R. Aylett, P. Sobreperez, S. Woods, C. Zoll, and L. Hall. Caring for agents and agents that care: Building empathic relations with synthetic agents. In Proceedings of the Third International Joint Conference on Autonomous Agents & Multi-Agent Systems (AAMAS 2004). ACM Press, July 2004.

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