[{"place":"Sydney, Australia","date_created":"2026-07-01T19:44:35Z","department":[{"_id":"660"}],"type":"conference","citation":{"ieee":"O. Türk, S. T. Lazarov, Y. Wang, A. Grimminger, H. Buschmeier, and P. Wagner, “When ‘yeah’ means ‘not quite’: Multimodal detection of backchannels expressing incomplete understanding,” presented at the INTERSPEECH 2026, Sydney, Australia.","apa":"Türk, O., Lazarov, S. T., Wang, Y., Grimminger, A., Buschmeier, H., &#38; Wagner, P. (n.d.). When “yeah” means “not quite”: Multimodal detection of backchannels expressing incomplete understanding. <i>Proceedings of INTERSPEECH 2026</i>. INTERSPEECH 2026, Sydney, Australia.","short":"O. Türk, S.T. Lazarov, Y. Wang, A. Grimminger, H. Buschmeier, P. Wagner, in: Proceedings of INTERSPEECH 2026, Sydney, Australia, n.d.","chicago":"Türk, Olcay, Stefan Teodorov Lazarov, Yu Wang, Angela Grimminger, Hendrik Buschmeier, and Petra Wagner. “When ‘Yeah’ Means ‘Not Quite’: Multimodal Detection of Backchannels Expressing Incomplete Understanding.” In <i>Proceedings of INTERSPEECH 2026</i>. Sydney, Australia, n.d.","mla":"Türk, Olcay, et al. “When ‘Yeah’ Means ‘Not Quite’: Multimodal Detection of Backchannels Expressing Incomplete Understanding.” <i>Proceedings of INTERSPEECH 2026</i>.","bibtex":"@inproceedings{Türk_Lazarov_Wang_Grimminger_Buschmeier_Wagner, place={Sydney, Australia}, title={When “yeah” means “not quite”: Multimodal detection of backchannels expressing incomplete understanding}, booktitle={Proceedings of INTERSPEECH 2026}, author={Türk, Olcay and Lazarov, Stefan Teodorov and Wang, Yu and Grimminger, Angela and Buschmeier, Hendrik and Wagner, Petra} }","ama":"Türk O, Lazarov ST, Wang Y, Grimminger A, Buschmeier H, Wagner P. When “yeah” means “not quite”: Multimodal detection of backchannels expressing incomplete understanding. In: <i>Proceedings of INTERSPEECH 2026</i>."},"publication":"Proceedings of INTERSPEECH 2026","project":[{"_id":"112","name":"TRR 318 - Projekt A02: Verstehensprozess einer Erklärung beobachten und auswerten"}],"abstract":[{"text":"Multimodal backchannels are fundamental to conversational grounding and understanding. However, backchannels do not always transparently reflect the interlocutor's actual cognitive state. “Incongruent backchannels”, where the observable feedback implies understanding although there is no genuine understanding, are a potential source of ambiguity in any interaction. Using acoustic, head movement, and discourse-related data from 45 naturalistic dyadic interactions, we investigate whether incongruent and congruent backchannels show systematically different properties using a classification task. Results show that these backchannels are indeed separable based on multimodal features. Incongruent backchannels are typically characterised by more neutral head movement configurations and lower acoustic dynamism, while discursive cues strongly influence the classification. Overall, the findings suggest a relatively reduced effort in the signalling of incongruent backchannels.","lang":"eng"}],"quality_controlled":"1","_id":"66106","language":[{"iso":"eng"}],"user_id":"76456","conference":{"end_date":"2026-10-01","location":"Sydney, Australia","start_date":"2026-09-27","name":"INTERSPEECH 2026"},"author":[{"full_name":"Türk, Olcay","first_name":"Olcay","last_name":"Türk"},{"id":"90345","full_name":"Lazarov, Stefan Teodorov","first_name":"Stefan Teodorov","orcid":"0009-0009-0892-9483","last_name":"Lazarov"},{"first_name":"Yu","last_name":"Wang","full_name":"Wang, Yu"},{"id":"57578","first_name":"Angela","last_name":"Grimminger","full_name":"Grimminger, Angela"},{"orcid":"0000-0002-9613-5713","first_name":"Hendrik","last_name":"Buschmeier","full_name":"Buschmeier, Hendrik","id":"76456"},{"full_name":"Wagner, Petra","last_name":"Wagner","first_name":"Petra","id":"74505"}],"title":"When “yeah” means “not quite”: Multimodal detection of backchannels expressing incomplete understanding","year":"2026","status":"public","date_updated":"2026-07-01T19:48:21Z","publication_status":"accepted"}]