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<span style="font-size:16px;font-variant-ligatures:no-common-ligatures;background-color:rgb(255, 255, 255);display:inline !important">Call for Participation:</span>
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<span style="margin:0px; font-size:11pt; font-family:Arial"><b><span style="margin:0px; text-align:left; background-color:rgb(255,255,255); display:inline!important">CVPR’21</span><span style="margin:0px; text-align:left; background-color:rgb(255,255,255)"> </span></b><span style="margin:0px; text-align:left; background-color:rgb(255,255,255)"><b>ActivityNet
 workshop guest task: <span style="text-align:start; background-color:rgb(255,255,255); display:inline!important">ActEV SDL Unknown Facility (UF) challenge</span></b></span></span></p>
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<span style="margin:0px; font-weight:400; font-size:11pt; font-family:Arial">The ActEV SDL Unknown Facility (UF) challenge is a guest task under the CVPR’21<span style="margin:0px"> </span><span style="margin:0px">ActivityNet</span><span style="margin:0px"> </span>workshop
 (<a href="http://activity-net.org/challenges/2021/" id="LPlnk">http://activity-net.org/challenges/2021/</a>).  The challenge participants are invited to submit their runnable activity detection system for Known Activities using an ActEV Command Line Interface
 (CLI) submission on the Unknown Facility EO video dataset.  Based on the UF CLI submission deadline of May 07, 2021, we will invite the top two teams to give oral presentations at the CVPR’21<span style="margin:0px"> </span><span style="margin:0px">ActivityNet</span><span style="margin:0px"> </span>workshop. </span></p>
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<span style="margin:0px; font-weight:400; font-size:11pt; font-family:Arial">ActEV SDL UF website: https://actev.nist.gov/sdl</span></p>
<div>CVPR’21 ActivityNet workshop: http://activity-net.org/challenges/2021/</div>
If you have any question about the SDL evaluation, please email actev-nist@nist.gov<br>
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<span style="margin:0px; font-weight:700; font-size:11pt; font-family:Arial">Who</span></p>
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<span style="margin:0px; font-weight:400; font-size:11pt; font-family:Arial">NIST invites all organizations, particularly universities and corporations, to submit their technologies to ActEV SDL UF.  The evaluation is open worldwide. Participation is free.
 NIST does not provide funds to participants.</span></p>
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<span style="margin:0px; font-weight:700; font-size:11pt; font-family:Arial">Schedule</span></p>
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<li><span style="margin:0px; font-size:11pt; font-family:Arial">February 10, 2021:
<span style="background-color:rgb(255,255,255); display:inline!important">CVPR’21</span><span style="margin:0px; background-color:rgb(255,255,255)"> </span><span style="margin:0px; background-color:rgb(255,255,255)">ActivityNet </span>ActEV SDL UF (with Known
 Activities) leaderboard opens</span></li><li>
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<span style="margin:0px; font-weight:400; font-size:11pt; font-family:Arial">May 07, 2021: Deadline for UF CLI submissions to be included in CVPR’21<span style="margin:0px"> </span><span style="margin:0px">ActivityNet</span><span style="margin:0px"> </span>workshop.</span></p>
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<span style="margin:0px; font-weight:400; font-size:11pt; font-family:Arial">June 01, 2021: Top two teams on the ActEV'21 SDL UF (with Known Activities) leaderboard invited to give oral presentations at the CVPR’21<span style="margin:0px"> </span><span style="margin:0px">ActivityNet</span><span style="margin:0px"> </span>workshop
 based on the CLI submission deadline (May 07, 2021).</span></p>
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<span style="margin:0px; font-weight:400; font-size:11pt; font-family:Arial">June 19, 2021: CVPR’21<span style="margin:0px"> </span><span style="margin:0px">ActivityNet</span><span style="margin:0px"> </span>workshop</span></p>
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