Dialog designs in virtual drama: Balancing agency and scripted dialogs

Edward Chao Chun Kao*, Von Wun Soo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Scripts are automatically generated by a story generator and subsequently played by virtual agents. The scripts for actors consist of two parts: movements and dialogs, however, the dialogs are insufficiently addressed in current research of story generation, thereby limiting the generated stories. Therefore, our initial goal was to enable story generators to generate dialogs as sets of character-based actions that are integrated with original story plots. This paper presents a speech-act-based dialog generation framework to define the relationship between dialogs and story plots. In addition, we introduce the manner in which agents may improvise scripted dialogs by selecting various courses of actions. Lastly, a sample scenario was generated according to this framework and demonstrated by virtual agents with the Unreal Development Kit. Our initial results indicated that this framework maintains a balance between agency and scripted dialogs, and that improvised dialogs of virtual agents do not affect the consistency of stories.

Original languageEnglish
Title of host publicationAgents for Educational Games and Simulations - International Workshop, AEGS 2011, Revised Papers
Number of pages16
StatePublished - 2012
Externally publishedYes
EventInternational Workshop on Agents for Educational Games and Simulations, AEGS 2011 - Taipei, Taiwan
Duration: 02 05 201102 05 2011

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7471 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


ConferenceInternational Workshop on Agents for Educational Games and Simulations, AEGS 2011


  • dialog generation
  • speech act theory
  • virtual drama


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