Event-centric hyperlinking of socially contributed multimedia content

Media hyperlinking consists in linking together media based on their content, uncovering the relation between them. It is becoming an important functionality for providing users with a way to navigate between video entities illustrating various related facets of the original topic and satisfy their information needs. Thanks to such approaches, multimedia search can often be replaced by recommendation. A particular usage of hyperlinking is to provide, through a second screen application, extra information or content about the video watched on a main screen (TV). In this talk, we will focus on event-centric media hyperlinking: the task at hand consists in locating and identifying relevant media items, and displaying them on the second screen. The related material is selected based on underlying events that will be detected through web services: events are seen as structuring elements, dened in terms of date, location, intent and attendance. Two approaches for event-based mining of such additional and related information will be presented. Each of them satisfying a different user information need and addressing different usage scenario; static vs dynamic second screening. In both cases, the event-centric organization of the multimedia material enables to rapidly and effectively visualise what matters about topics of interest.