Machine learning system for estimating the rhythmic salience of sounds

Issue title: Selected papers from the KES2004 conference

Article type: Research Article

Authors: Kostek, Bozena^{a; *} | Wojcik, Jaroslaw^b

Affiliations: [a] Gdansk University of Technology, Multimedia Systems Department Narutowicza 11/12, 80952 Gdansk, Poland | [b] Wroclaw University of Technology, Department of Information Systems, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland

Correspondence: [*] Corresponding author. Tel.: +48 58 347 13 01; Fax: +48 58 347 11 14; E-mail: bozenka@sound.eti.pg.gda.pl

Abstract: This article describes experimental work carried out in attempt to improve the effectiveness of musical rhythm retrieval systems. The authors define basic notions in the area of hierarchical rhythm retrieval and describe a procedure for inducing rhythmic hypotheses in a given melody. Utilizing an approach commonly used in the data mining domain, an association rule model has been applied to estimate the rhythmic salience of sounds based on the physical attributes of duration, frequency and amplitude. On the basis of the knowledge obtained by the machine learning system, the authors propose five functions to rank sounds according to their tendency to be located in accented positions in a melody. Adapted precision and recall measures were used to validate the proposed functions and conduct experimental verification. Conclusions derived from the results of the experiments have also been presented.

DOI: 10.3233/KES-2005-9403

Journal: International Journal of Knowledge-based and Intelligent Engineering Systems, vol. 9, no. 4, pp. 275-284, 2005