University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Clustering expressive timing with regressed polynomial coefficients demonstrated by a model selection test

Li, S, Dixon, S and Plumbley, Mark (2017) Clustering expressive timing with regressed polynomial coefficients demonstrated by a model selection test In: 18th International Society for Music Information Retrieval Conference, 23 - 27 October 2017, Suzhou, China.

[img]
Preview
Text
LiDixonPlumbley17-ismir_accepted_ccby.pdf - Accepted version Manuscript

Download (165kB) | Preview

Abstract

Though many past works have tried to cluster expressive timing within a phrase, there have been few attempts to cluster features of expressive timing with constant dimensions regardless of phrase lengths. For example, used as a way to represent expressive timing, tempo curves can be regressed by a polynomial function such that the number of regressed polynomial coefficients remains constant with a given order regardless of phrase lengths. In this paper, clustering the regressed polynomial coefficients is proposed for expressive timing analysis. A model selection test is presented to compare Gaussian Mixture Models (GMMs) fitting regressed polynomial coefficients and fitting expressive timing directly. As there are no expected results of clustering expressive timing, the proposed method is demonstrated by how well the expressive timing are approximated by the centroids of GMMs. The results show that GMMs fitting the regressed polynomial coefficients outperform GMMs fitting expressive timing directly. This conclusion suggests that it is possible to use regressed polynomial coefficients to represent expressive timing within a phrase and cluster expressive timing within phrases of different lengths.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Li, SUNSPECIFIEDUNSPECIFIED
Dixon, SUNSPECIFIEDUNSPECIFIED
Plumbley, Markm.plumbley@surrey.ac.ukUNSPECIFIED
Date : 27 October 2017
Copyright Disclaimer : ⃝c Shengchen Li, Simon Dixon, Mark D. Plumbley. Li- censed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). Attribution: Shengchen Li, Simon Dixon, Mark D. Plumbley. “Clustering expressive timing with regressed polynomial co- efficients demonstrated by a model selection test”, 18th International So- ciety for Music Information Retrieval Conference, Suzhou, China, 2017.
Depositing User : Melanie Hughes
Date Deposited : 18 Jul 2017 14:10
Last Modified : 21 Nov 2017 14:58
URI: http://epubs.surrey.ac.uk/id/eprint/841699

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800