Emotionally-relevant features for classification and regression of music lyrics
A carregar...
Data
2016-08-08
Autores
Malheiro, Ricardo
Panda, Renato
Gomes, Paulo
Paiva, Rui Pedro
Título da revista
ISSN da revista
Título do Volume
Editora
IEEE TRANSACTIONS ON JOURNAL AFFECTIVE COMPUTING, MANUSCRIPT ID
Resumo
This research addresses the role of lyrics in the music emotion recognition process. Our approach is based on several state of the art features complemented by novel stylistic, structural and semantic features. To evaluate our approach, we created a ground truth dataset containing 180 song lyrics, according to Russell’s emotion model. We conduct four types of experiments: regression and classification by quadrant, arousal and valence categories. Comparing to the state of the art features (ngrams - baseline), adding other features, including novel features, improved the F-measure from 69.9%, 82.7% and 85.6% to 80.1%, 88.3% and 90%, respectively for the three classification experiments. To study the relation between features and emotions (quadrants) we performed experiments to identify the best features that allow to describe and discriminate each quadrant. To further validate these experiments, we built a validation set comprising 771 lyrics extracted from the AllMusic platform, having achieved 73.6% F-measure in the classification by quadrants. We also conducted experiments to identify interpretable rules that show the relation between features and emotions and the relation among features. Regarding regression, results show that, comparing to similar studies for audio, we achieve a similar performance for arousal and a much better performance for valence.
Descrição
Palavras-chave
recognition of group emotion, affective computing, affective computing applications, music retrieval and generation, natural language processing