Preliminaries to an account of multi-party conversational turn-taking as an antiferromagnetic spin glass
2010 (English)In: Proceedings of NIPS Workshop on Modeling Human Communication Dynamics, Vancouver, B.C., Canada, 2010Conference paper (Refereed)
We present empirical justification of why logistic regression may acceptably approximate, using the number of currently vocalizing interlocutors, the probabilities returned by a time-invariant, conditionally independent model of turn-taking. The resulting parametric model with 3 degrees of freedom is shown to be identical to an infinite-range Ising antiferromagnet, with slow connections, in an external field; it is suitable for undifferentiated-participant scenarios. In differentiated-participant scenarios, untying parameters results in an infinite-range spin glass whose degrees of freedom scale as the square of the number of participants; it offers an efficient representation of participant-pair synchrony. We discuss the implications of model parametrization and of the thermodynamic and feed-forward perceptron formalisms for easily quantifying aspects of conversational dynamics.
Place, publisher, year, edition, pages
Vancouver, B.C., Canada, 2010.
Computer Science Language Technology (Computational Linguistics)
IdentifiersURN: urn:nbn:se:kth:diva-52176OAI: oai:DiVA.org:kth-52176DiVA: diva2:465471
NIPS Workshop on Modeling Human Communication Dynamics, Whistler, British Columbia, Canada. 2010.
tmh_import_11_12_14 QC 201112202011-12-142011-12-142011-12-20Bibliographically approved