Classification of musical audio signals according to expressed mood or emotion has evident applications to content-based music retrieval in large databases. Wrapper selection is a dimension reduction method that has been proposed for improving classification performance. However, the technique is prone to lead to overfitting of the training data, which… (More)
Social tags inherent in online music services such as Last.fm provide a rich source of information on musical moods. The abundance of social tags makes this data highly beneficial for developing techniques to manage and retrieve mood information, and enables study of the relationships between music content and mood representations with data substantially… (More)
This study investigates whether taking genre into account is beneficial for automatic music mood annotation in terms of core affects valence, arousal, and tension, as well as several other mood scales. Novel techniques employing genre-adaptive semantic computing and audio-based modelling are proposed. A technique called the ACTwg employs genre-adaptive… (More)
Semantic Layer Projection (SLP) is a method for automatically annotating music tracks according to expressed mood based on audio. We evaluate this method by comparing it to a system that infers the mood of a given track using associated tags only. SLP differs from conventional auto-tagging algorithms in that it maps audio features to a low-dimensional… (More)
This paper describes the general properties of the classification system submitted to the MIREX 2010 train/test classification tasks.