A probabilistic approach for learning folksonomies from structured data

TitleA probabilistic approach for learning folksonomies from structured data
Publication TypeConference Papers
Year of Publication2011
AuthorsPlangprasopchok A, Lerman K, Getoor L
Conference NameProceedings of the fourth ACM international conference on Web search and data mining
Date Published2011///
Conference LocationNew York, NY, USA
ISBN Number978-1-4503-0493-1
Keywordscollective knowledge, data mining, folksonomies, social information processing, social metadata, taxonomies

Learning structured representations has emerged as an important problem in many domains, including document and Web data mining, bioinformatics, and image analysis. One approach to learning complex structures is to integrate many smaller, incomplete and noisy structure fragments. In this work, we present an unsupervised probabilistic approach that extends affinity propagation [7] to combine the small ontological fragments into a collection of integrated, consistent, and larger folksonomies. This is a challenging task because the method must aggregate similar structures while avoiding structural inconsistencies and handling noise. We validate the approach on a real-world social media dataset, comprised of shallow personal hierarchies specified by many individual users, collected from the photosharing website Flickr. Our empirical results show that our proposed approach is able to construct deeper and denser structures, compared to an approach using only the standard affinity propagation algorithm. Additionally, the approach yields better overall integration quality than a state-of-the-art approach based on incremental relational clustering.