**Our apologies if you receive multiple copies of this call**

The ECML PKDD 2021 (Virtual) hosts a few DISCOVERY CHALLENGES:
—Farfech Fashion Recommendations Challenge;
—Finding the planet in the noise: De-trending exoplanet lightcurves from non-linear noise;
—Discover the mysteries of the Maya. 

For more information please visit https://2021.ecmlpkdd.org/?page_id=1610

Challenge Start: April 01, 2021;
Challenge End: July 01, 2021;
Challenge Results Notification: July 05, 2021;
Paper Submission for Runner-up’s: July 22, 2021. 
Conference: September, 13-17, 2021 (Virtual). 

Other events at ECML PKDD (Virtual): 
-regular papers (Research and Applied Data Science Tracks) https://2021.ecmlpkdd.org/?page_id=1599
-journal track https://2021.ecmlpkdd.org/?page_id=1341 
-PhD forum https://2021.ecmlpkdd.org/?page_id=1591 
-workshops and tutorials: https://2021.ecmlpkdd.org/?page_id=1603
—industry track https://2021.ecmlpkdd.org/?page_id=1637