Transition-Matrix Regularization for Next Dialogue Act Prediction in Counselling Conversations

Fuente: arXiv
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Main Authors: Rudolph, Eric, Steigerwald, Philipp, Albrecht, Jens
Format: Preprint
Published: 2026
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author Rudolph, Eric
Steigerwald, Philipp
Albrecht, Jens
author_facet Rudolph, Eric
Steigerwald, Philipp
Albrecht, Jens
contents This paper studies how empirical dialogue-flow statistics can be incorporated into Next Dialogue Act Prediction (NDAP). A KL regularization term is proposed that aligns predicted act distributions with corpus-derived transition patterns. Evaluated on a 60-class German counselling taxonomy using 5-fold cross-validation, this improves macro-F1 by 9--42% relative depending on encoder and substantially improves dialogue-flow alignment. Cross-dataset validation on HOPE suggests that improvements transfer across languages and counselling domains. In systematic ablations across pretrained encoders and architectures, the findings indicate that transition regularization provides consistent gains and disproportionately benefits weaker baseline models. The results suggest that lightweight discourse-flow priors complement pretrained encoders, especially in fine-grained, data-sparse dialogue tasks.
format Preprint
id arxiv_https___arxiv_org_abs_2604_18539
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Transition-Matrix Regularization for Next Dialogue Act Prediction in Counselling Conversations
Rudolph, Eric
Steigerwald, Philipp
Albrecht, Jens
Computation and Language
Artificial Intelligence
This paper studies how empirical dialogue-flow statistics can be incorporated into Next Dialogue Act Prediction (NDAP). A KL regularization term is proposed that aligns predicted act distributions with corpus-derived transition patterns. Evaluated on a 60-class German counselling taxonomy using 5-fold cross-validation, this improves macro-F1 by 9--42% relative depending on encoder and substantially improves dialogue-flow alignment. Cross-dataset validation on HOPE suggests that improvements transfer across languages and counselling domains. In systematic ablations across pretrained encoders and architectures, the findings indicate that transition regularization provides consistent gains and disproportionately benefits weaker baseline models. The results suggest that lightweight discourse-flow priors complement pretrained encoders, especially in fine-grained, data-sparse dialogue tasks.
title Transition-Matrix Regularization for Next Dialogue Act Prediction in Counselling Conversations
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2604.18539