Abstract
In this paper, the problem of identifying the melodic track of a MIDI file in imbalanced scenarios is addressed. A polyphonic MIDI file is a digital score that consists of a set of tracks where usually only one of them contains the melody and the remaining tracks hold the accompaniment. This leads to a two-class imbalance problem that, unlike in previous work, is managed by over-sampling the melody class (the minority one) or by under-sampling the accompaniment class (the majority one) until both classes are the same size. Experimental results over three different music genres prove that learning from balanced training sets clearly provides better results than the standard classification process.
We would like to acknowledge the Pattern Recognition and Artificial Intelligence Group at the University of Alicante who provided us with the datasets used in this paper.
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Martín, R., Mollineda, R.A., García, V. (2009). Melodic Track Identification in MIDI Files Considering the Imbalanced Context. In: Araujo, H., Mendonça, A.M., Pinho, A.J., Torres, M.I. (eds) Pattern Recognition and Image Analysis. IbPRIA 2009. Lecture Notes in Computer Science, vol 5524. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02172-5_63
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DOI: https://doi.org/10.1007/978-3-642-02172-5_63
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