Social Event Detection: part of the LinkedTV solution

Jointly with three other EU projects (GLOCAL, SocialSensor and Chorus+), LinkedTV successfully organized the 2012 Social Event Detection (SED) task as part of MediaEval 2012. Detecting events in video (ftrames) for their annotation and subsequent hyperlinking to related Web content is an important contribution to the LinkedTV vision of enabling any viewer to access related Web information and services while watching television. 

MediaEval is an annual international benchmarking activity, currently in its fifth year. In the 2012 edition of the SED task, which was the continuation of the successful first edition of SED that run in 2011, three challenges were defined on a common dataset of approximately 167k images. All three challenges required that participants detect images related to specified classes of events, and return them clustered in different events. More than 20 institutions from all over the world expressed their interest in this task, and eventually 5 of them succeeded in crossing the finish line, submitting in total more than 50 individual sets of results (“runs“). The outcomes of the task were presented at the MediaEval workshop that took place in Pisa, Italy, in early October. Since that time, we also made publicly available the dataset that we assembled and used for the 2012 SED task. The dataset, comprising the three 2012 SED Challenges definitions, the more than 167k images that constitute the test dataset, an XML file with metadata for the images in the test dataset, the ground truth results for the defined challenges/dataset, and the evaluation script that we used for judging the submissions, are downloadable from http://mklab.iti.gr/project/sed2012The 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.

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