<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Hi Serkan,<div><br></div><div>I've not looked into this properly, but a quick look at a project on the Task Manager shows I can find a validated square:</div><div><br></div><div><a href="https://tasks.hotosm.org/project/5182?task=2212#bottom">https://tasks.hotosm.org/project/5182?task=2212#bottom</a><br></div><div><br></div><div>This task 2212 appears in the project geojson, and marked as validated: <a href="https://tasks.hotosm.org/api/v1/project/5182/tasks?as_file=true">https://tasks.hotosm.org/api/v1/project/5182/tasks?as_file=true</a></div><div><br></div><div>I've not double checked this is what you want, but looks like a good place to start:</div><div><br></div></div></div></div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><div>"type": "MultiPolygon"}, "properties": {"taskId": 2212, "taskSplittable": true, "taskStatus": "VALIDATED", "taskX": 30348, "taskY": 34875, "taskZoom": 16}, "type": "Feature"}, {"geometry": {"coordinates": [[[[-13.2934570288688, 11.4907909783363], [-13.2879638648073, 11.4907909783363], [-13.2879638648073, 11.4961739900467], [-13.2934570288688, 11.4961739900467], [-13.2934570288688, 11.4907909783363]]]],</div></div><div><br></div></div></div></div></blockquote>Cheers, Joseph</div><br><div class="gmail_quote"><div dir="ltr">On Tue, 20 Nov 2018 at 03:47, Serkan Karakulak <<a href="mailto:sk7685@nyu.edu">sk7685@nyu.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr">Hi,<div>I am a graduate student in a Data Science program, and I wanted to get in touch with you because me and my two other friends are interested in working on a machine learning project to map areas using their satellite images and produce their labels. If we obtain a high accuracy, we thought it could be of use to the hotosm and the missingmaps initiatives.<br></div><div><div><br></div><div>I have first heard about Missing Maps when I came across a mapathlon event two years ago in Istanbul. We were in search for a class project for one of our courses and I remembered about the mapathlon event and we would be very happy if we could contribute to the this wonderful initiative. There are already some previous successful works on this subject, so we are very hopeful that we could come up with an algorithm with high accuracy.</div><div><br></div><div>In order to develop the model, we need to extract bounding boxes of the validated tiles we see at hotosm. Then we will extract the satellite images and their labels using the label-maker API which is developed by DevSeed. Is there a method to extract the coordinates of these validated tiles? </div><div><br></div><div>Thank you for your time and help.</div><div><br></div><div>Best,</div><div><br></div><div>Serkan</div></div></div></div>
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