A WOZ Variant with Contrastive Conditions

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A WOZ Variant with Contrastive Conditions

• Esther Levin, City College of New York
• Rebecca Passonneau, Columbia University

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Motivating questions

• How can we update the wizard-of-oz paradigm to
  resemble human/machine dialogues of the near
  future?
• How can we enhance MDP approaches to learning
  dialogue strategies from corpora?
• What dialogue states to define
• What dialogue actions to define
• How can the types of speech understanding errors
  made by systems be handled more naturally?

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Application Heiskell Library,Automated Readers
Advisor

• Heiskell patrons
• cannot read print books
• Blind, visually handicapped, physically disabled
• request audio/braille/large-print books by
  telephone
• request items by author, title or catalogue
  number
• highly motivated, technologically adept, directly
  involved with the library

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ApproachWizard Ablation, Contrastive conditions

• Ablation conditions
• AW1 wizard input is ASR wizard output is
  unconstrained
• AW2 wizard input is ASR wizard selects response
  actions from system actions
• Two dimensions of contrast
• user/librarian user/AW1 user/AW2 user/system
• pre/post system enrichment