Title
Psychological constraints on string-based methods for pattern discovery in polyphonic corpora.
Abstract
Researchers often divide symbolic music corpora into contiguous sequences of n events (called n-grams) for the purposes of pattern discovery, key finding, classification, and prediction. What is more, several studies have reported improved task performance when using psychologically motivated weighting functions, which adjust the count to privilege n-grams featuring more salient or memorable events (e.g., Krumhansl, 1990). However, these functions have yet to appear in harmonic pattern discovery algorithms, which attempt to discover the most recurrent chord progressions in complex polyphonic corpora. This study examines whether psychologically-motivated weighting functions can improve harmonic pattern discovery algorithms. Models using various n-gram selection methods, weighting functions, and ranking algorithms attempt to discover the most conventional closing harmonic progression in the common-practice period, ii6-"I64"-V7-I, with the progression's mean reciprocal rank serving as an evaluation metric for model comparison.
Year
Venue
Field
2018
arXiv: Sound
Learning to rank,Weighting,Harmonic progression,Computer science,Harmonic,Speech recognition,Mean reciprocal rank,Polyphony,Chord (music),Salient
DocType
Volume
Citations 
Journal
abs/1807.06700
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
David Sears112.80
G. Widmer2448.01