Multimedia Knowledge and Social Media Analytics Laboratory

Social Event Detection dataset made available for researchers


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CERTH has successfully contributed to the organization of this year's Social Event Detection task (SED 2012) that took place in Pisa 4-5 October, in the context of MediaEval 2012. The SED 2012 dataset has been made publicly available for download and use by the research community. You can freely download the dataset from . The downloadable archives include the following:

  • The three 2012 SED Challenges definitions,
  • The XML metadata for the images in the test dataset,
  • The actual image files of the test dataset,
  • Ground truth results for the defined challenges/dataset,
  • Our evaluation script.

Please feel free to use this dataset for research purposes, and also to disseminate the above information to anyone else who may be interested.