You seem to be attempting to access an item that has been removed from the repository.
There is an alternative version of the item you are trying to access: Hurrell, Eoin and Smeaton, Alan F. ORCID: 0000-0003-1028-8389 (2013) Context ontologies for recommending from the social web. In: ACM WSDM CaRR 2013, 5 Feb 2013, Rome, Italy.