The scope of the workshop included all topics related to feedback in dialog:

• phonetic, prosodic and multi-modal properties of back-channels and related phenomena
• cues for feedback and contexts of feedback
• language-specific findings and cross-cultural comparisons
• dimensions of variation in feedback behavior among speakers
• other empirical results about back-channels and related phenomena
• innovative or more efficient research methods
• possible standard evaluation metrics for models of feedback behavior
• applications, including for virtual agents and robots, for behavior analysis, for second-language education and communication training, for voice user interfaces and so on
• implications of findings about feedback, including for models of dialog, action timing, adaptation, social cognition, mutual influence, cognitive and language processes, coordination, and interpersonal interaction
• identification of unresolved research questions about feedback in dialog
• other related topics