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Event Detection and Time Synchronization in Social Multimedia

Digital content creation (photos, videos and lots of associated sensor data) is nowadays easier than ever, resulting in huge amounts of multimedia content created every day. It is also, more than ever before, a collective experience: a major portion of all the created digital content is shared via social sharing platforms, and in many cases the envisaged social sharing was the primary reason for creating the content in the first place. Although most of these shared photos and videos have been captured during either a public or private event (e.g. a concert, a football game, a wedding, a birthday party), in the social Web they are often scattered, i.e., they are disassociated from the related events. This creates a fragmented environment, where finding and organizing the digital content and related interesting events presents significant challenges. These are further amplified by the fact that the sensor data, which are typically associated with the photos and videos, such as time and location information, are (despite common belief or hope) often wrong, inaccurate or misleading (concerning time information, for instance, such errors may be due to a wrong setting of the clock/calendar of the image capture device, or to different time- zone settings). Considering that humans often think in terms of events, devising techniques that address the above challenges and support the event-based organization of the content, represents a significant step towards making multimedia browsing and search possible, as well as social media understanding, in ways that are more efficient and more natural to the users.

Scope and Topics

This Special Session aims to attract and present the latest developments and results on the discovery of social and personal events from web multimedia content; the detection and retrieval of user-contributed media collections that are related to such events; the time-synchronization of multiple media collections captured by different users or devices but corresponding to the same event; and the time-aligned consumption of multimedia in novel applications such as event summarization and storyboarding. More specifically, the topics of the special session include:

  • Discovery of social events from web multimedia
  • Discovery of personal events from web multimedia
  • Associating user-contributed media collections with events
  • Time-synchronization of event-based media collections
  • Geo-spatial event analysis
  • Summarization of large events based on social multimedia
  • Event-based visualization and user interaction
  • Event-based retrieval and indexing for mobile applications
  • Social event analytics
  • Storyboarding and other novel event-based applications


Nicola Conci, University of Trento, Italy

Vasileios Mezaris, Centre for Research and Technology Hellas, Greece

Francesco De Natale, University of Trento, Italy

Symeon Papadopoulos, Centre for Research and Technology Hellas, Greece

Georgios Petkos, Centre for Research and Technology Hellas, Greece


Deadline: January 25, 2015, 11:59 PM PST

Please submit your work using the EasyChair conference website.

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