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Absolute of Relative? A New Approach to Building Feature Vectors For Emotion Tracking In Music

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Imbrasaitė, V. & Robinson, P. (2013). Absolute of Relative? A New Approach to Building Feature Vectors For Emotion Tracking In Music. In: Proceedings of the 3rd International Conference on Music & Emotion (ICME3), Jyväskylä, Finland, 11th - 15th June 2013. Geoff Luck & Olivier Brabant (Eds.). University of Jyväskylä, Department of Music.
Authors
Imbrasaitė, Vaiva |
Robinson, Peter
Date
2013

 
It is believed that violation of or conformity to expectancy when listening to music is one of the main sources of musical emotion. To address this, we test a new way of building feature vectors and representing features within the vector for the machine learning approach to continuous emotion tracking systems. Instead of looking at the absolute values for specific features, we concentrate on the average value of that feature across the whole song and the difference between that and the absolute value for a particular sample. To test this “relative” representation, we used a corpus of popular music with continuous labels on the arousalvalence space. The model consists of a Support Vector Regression classifier for each axis, with one feature vector for each second of a song. The relative representation, when compared to the standard way of building feature vectors, gives a 10% improvement on average (and up to 25% improvement for some models) on the explained variance for both the valence and arousal axes. We also show that this result is ...
Publisher
University of Jyväskylä, Department of Music
Conference
The 3rd International Conference on Music & Emotion, Jyväskylä, Finland, June 11-15, 2013
Is part of publication
Proceedings of the 3rd International Conference on Music & Emotion (ICME3), Jyväskylä, Finland, 11th - 15th June 2013. Geoff Luck & Olivier Brabant (Eds.). ISBN 978-951-39-5250-1
Keywords
emotions music emotion tracking dimensional space machine learning
URI

http://urn.fi/URN:NBN:fi:jyu-201305301846

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