AI RESEARCH
Aligning Backchannel and Dialogue Context Representations via Contrastive LLM Fine-Tuning
arXiv CS.LG
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ArXi:2604.16622v1 Announce Type: cross Backchannels (e.g., `yeah', `mhm', and `right') are short, non-interruptive feedback signals whose lexical form and prosody jointly convey pragmatic meaning. While prior computational research has largely focused on predicting backchannel timing, the relationship between lexico-prosodic form and meaning remains underexplored.