Name
Abstract | ||
|---|---|---|
Web 2.0 applications have attracted a considerable amount of attention because their open-ended nature allows users to create lightweight semantic scaffolding to organize and share content. To date, the interplay of the social and semantic components of social media has been only partially explored. Here we focus on Flickr and Last.fm, two social media systems in which we can relate the tagging activity of the users with an explicit representation of their social network. We show that a substantial level of local lexical and topical alignment is observable among users who lie close to each other in the social network. We introduce a null model that preserves user activity while removing local correlations, allowing us to disentangle the actual local alignment between users from statistical effects due to the assortative mixing of user activity and centrality in the social network. This analysis suggests that users with similar topical interests are more likely to be friends, and therefore semantic similarity measures among users based solely on their annotation metadata should be predictive of social links. We test this hypothesis on the Last.fm data set, confirming that the social network constructed from semantic similarity captures actual friendship more accurately than Last.fm's suggestions based on listening patterns. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1145/1718487.1718521 | Clinical Orthopaedics and Related Research |
Keywords | DocType | Volume |
semantic similarity,maximum information path,social media,semantic similarity measure,social se- mantic similarity,shared metadata,collaborative tagging,web 2.0,social network,actual local alignment,lexical and topical alignment,user activity,social link,link prediction,social media system,lightweight semantic,folksonomies,semantic component,social link prediction,web 2 0 | Conference | abs/1003.2281 |
ISSN | Citations | PageRank |
Proceedings of the third ACM international conference on Web
search and data mining WSDM2010, New York, Feb 4-6 2010, p. 271 | 91 | 4.41 |
References | Authors | |
24 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Rossano Schifanella | 1 | 619 | 35.44 |
| Alain Barrat | 2 | 1401 | 87.12 |
| Ciro Cattuto | 3 | 1740 | 97.27 |
| Benjamin Markines | 4 | 502 | 22.08 |
| Filippo Menczer | 5 | 3874 | 268.67 |