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Prizes and Timeline


The SPHERE challenge will take place in conjunction with the ECML-PKDD conference with the following ECML-PKDD timelines: 

  • Solution Proposal Deadline: July 19 2016 24:00 - As long as it is July 19-th anywhere in the world (Time Zone in Midway, US Minor Outlying Islands, UTC-12)
  • Paper submission deadline: July 8 2016 (all participants welcome to submit, selected Teams will be invited to submit their solution to the challenge workshop)
  • Notification: July 25 2016


The leaderboard can be found at the following page:


At a total prize fund of $10,000 will be dissiminated between the overall winners of the challenge. This prize fund has been sponsored by the AARP Foundation, and is divided in the following proportion: 
  • $5,000 being awarded to the winner;
  • $3,000 to the runner up; and
  • $2,000 to the second runner up.
There is also an additional prize fund for the three best-scoring entrants that attend ECML-PKDD 2016, with €1,000 being awarded to the highest scoring attendee; €600 to the second highest scoring attendee; and €400 to the third highest scoring attendee. These prizes will be awarded at the conference. 

Performance is evaluated with the weighted Brier score (see the eligibility and rules for more details on performance evaluation). Winning participants must participate in the workshop that is associated with the chlalenge. Participation rules and eligibility criteria are detailed in Section 6.

Challenge hosted by

We are delighted to announce that the SPHERE Challenge, which takes place in conjunction with ECML-PKDD 2016, is now hosted at DrivenData.  All challenge features (including the leaderboard, forum, and user/team registration) are now managed at the drivendata website: 

Using this Data

The paper below provides a full description of the data and the data formats, and and any use of the data must cite this:

Niall Twomey, Tom Diethe, Meelis Kull, Hao Song, Massimo Camplani, Sion Hannuna, Xenofon Fafoutis, Ni Zhu, Pete Woznowski, Peter Flach, and Ian Craddock. The SPHERE Challenge: Activity Recognition with Multimodal Sensor Data. 2016.

@article{twomey2016sphere, title={The {SPHERE} Challenge: Activity Recognition with Multimodal Sensor Data}, author={Twomey, Niall and Diethe, Tom and Kull, Meelis and Song, Hao and Camplani, Massimo and Hannuna, Sion and Fafoutis, Xenofon and Zhu, Ni and Woznowski, Pete and Flach, Peter and others}, journal={arXiv preprint arXiv:1603.00797}, year={2016}}

Contact Information

For any questions regarding the data, please contact: spherechallengeecml[at]