{"id":52,"date":"2022-06-09T19:59:35","date_gmt":"2022-06-09T17:59:35","guid":{"rendered":"https:\/\/www.idpoisson.fr\/tcbchallenge\/?page_id=52"},"modified":"2022-06-09T20:45:01","modified_gmt":"2022-06-09T18:45:01","slug":"metrics","status":"publish","type":"page","link":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/metrics\/","title":{"rendered":"Metrics"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Metrics<\/h2>\n\n\n\n<p>Using one or several texture features from published or new proposed texture characterization methods; participants are invited to use any classifier to classify the different data of the Challenge.<\/p>\n\n\n\n<p>In a first step, participants are invited to calibrate the classifiers to reach the best score with 116 subjects, half of which from osteoporotic patients and the other half from control subjects.<\/p>\n\n\n\n<p>In a second step, using the previous calibration parameters and 58 new test images for blind classification, participants will have to identify OP patients and CT subjects.<\/p>\n\n\n\n<p>Participants are invited to submit three results:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Classification results of the 116 training and test images (half OP and half CT)<\/strong><\/h2>\n\n\n\n<p>In this step, participants will be asked to provide the following classification rates:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>TP (True Positive, which is the number of OP people correctly identified)<\/li><li>FP (False Positive, which is the number of CT people incorrectly identified)<\/li><li>TN (True Negative, which is the number of CT people correctly identified)<\/li><li>FN (False Negative, which is the number of OP people incorrectly identified)<\/li><li>Sn (True positive rate or sensitivity) as Sn = TP\/(TP + FN)<\/li><li>Sp (Specificity or True Negative Rate) as Sp = TN\/(FP + TN)<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Classification results of the 58 blind test images<\/strong><\/h2>\n\n\n\n<p>In this step, challenge participants are asked to classify the blind test subjects as either osteoporotic patients or control subjects. The results should be submitted as a CSV file, where:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>the first column contains the name of each image<\/li><li>the second column contains the classification result for each image (1 for osteoporotic, 0 for control), and<\/li><li>the following columns with the texture feature values for each image.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Abstract<\/h2>\n\n\n\n<p>An extended abstract (2 pages maximum) explaining the methodology used and the classifiers characteristics (used features for the classifier).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Metrics Using one or several texture features from published or new proposed texture characterization methods; participants are invited to use &hellip; <a href=\"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/metrics\/\" class=\"more-link\">Plus <span class=\"screen-reader-text\">Metrics<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":125,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"folder":[],"class_list":["post-52","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/wp-json\/wp\/v2\/pages\/52","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/wp-json\/wp\/v2\/users\/125"}],"replies":[{"embeddable":true,"href":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/wp-json\/wp\/v2\/comments?post=52"}],"version-history":[{"count":3,"href":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/wp-json\/wp\/v2\/pages\/52\/revisions"}],"predecessor-version":[{"id":80,"href":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/wp-json\/wp\/v2\/pages\/52\/revisions\/80"}],"wp:attachment":[{"href":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/wp-json\/wp\/v2\/media?parent=52"}],"wp:term":[{"taxonomy":"folder","embeddable":true,"href":"https:\/\/www.idpoisson.fr\/tcbchallenge\/fr\/wp-json\/wp\/v2\/folder?post=52"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}