This is a few months late but better late then never! We said goodbye to PhD researcher Haklae Kim in May of this year when he returned to Korea and took up a position with Samsung Electronics soon afterward. We had a nice going away lunch for Haklae with the rest of the team from the Social Software Unit (picture below).
Haklae returned to Galway in September to defend his PhD entitled “Leveraging a Semantic Framework for Augmenting Social Tagging Practices in Heterogeneous Content Sharing Platforms”. The examiners were Stefan Decker, Tom Gruber and Philippe Laublet. Haklae successfully defended his thesis during the viva, and he will be awarded his PhD in 2010. We got a nice photo of the examiners during the viva which was conducted via Cisco Telepresence, with Stefan (in Galway) “resting” his hand on Tom’s shoulder (in San Jose)!
Haklae created a formal model called SCOT (Social Semantic Cloud of Tags) that can semantically describe tagging activities. The SCOT ontology provides enhanced features for representing tagging and folksonomies. This model can be used for sharing and exchanging tagging data across different platforms. To demonstrate the usage of SCOT, Haklae developed the int.ere.st open tagging platform that combined techniques from both the Social Web and the Semantic Web. The SCOT model also provides benefits for constructing social networks. Haklae’s work allows the discovery of social relationships by analysing tagging practices in SCOT metadata. He performed these analyses using both Formal Concept Analysis and tag clustering algorithms. The SCOT model has also been adopted in six applications (OpenLink Virtuoso, SPARCool, RelaxSEO, RDFa on Rails, OpenRDF, SCAN), and the int.ere.st service has 1,200 registered members. Haklae’s research work was published in 2 journal articles, 15 conference papers, 3 workshop papers, and 2 book chapters. His scholarship was funded by Science Foundation Ireland under grant numbers SFI/02/CE1/I131 (Líon) and SFI/08/CE/I1380 (Líon 2).