{"id":377,"date":"2016-04-20T01:25:55","date_gmt":"2016-04-20T01:25:55","guid":{"rendered":"http:\/\/pages.charlotte.edu\/colloquium\/?p=377"},"modified":"2016-04-20T01:25:55","modified_gmt":"2016-04-20T01:25:55","slug":"friday-april-22nd-at-1100am-math-conference-room","status":"publish","type":"post","link":"https:\/\/pages.charlotte.edu\/colloquium\/blog\/2016\/04\/20\/friday-april-22nd-at-1100am-math-conference-room\/","title":{"rendered":"Friday April 22nd, at 11:00AM  Math Conference room"},"content":{"rendered":"<table>\n<tbody>\n<tr>\n<td><a href=\"https:\/\/www.pnnl.gov\/computing\/staff\/staff_info.asp?staff_num=8150\">Xiu Yang<\/a>,\u00a0<span class=\"footerItem\">Pacific Northwest National Laboratory<\/span><\/td>\n<\/tr>\n<tr>\n<td>Title:\u00a0Enhancing Sparsity in Uncertainty Quantification Problems by Iterative Rotations<\/td>\n<\/tr>\n<tr>\n<td>Abstract:\u00a0Compressive sensing has become a powerful addition to uncertainty quantification\u00a0in recent years. It helps to extract information from limited data. We propose a new method to\u00a0enhance the sparsity of the representation of the uncertainty of the quantity of interest.\u00a0Specifically,\u00a0we consider rotation-based linear mappings which are determined iteratively for generalized\u00a0polynomial chaos expansions.This procedure increases the accuracy of\u00a0the compressive sensing-based uncertainty quantification method.\u00a0\u00a0We demonstrate the efficiency of this method with several examples.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Xiu Yang,\u00a0Pacific Northwest National Laboratory Title:\u00a0Enhancing Sparsity in Uncertainty Quantification Problems by Iterative Rotations Abstract:\u00a0Compressive sensing has become a powerful addition to uncertainty quantification\u00a0in recent years. It helps to extract information from limited data. We propose a new method to\u00a0enhance the sparsity of the representation of the uncertainty of the quantity of interest.\u00a0Specifically,\u00a0we consider rotation-based [&hellip;]<\/p>\n","protected":false},"author":333,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-377","post","type-post","status-publish","format-standard","hentry","category-spring-2022"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p3kCtT-65","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/posts\/377","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/users\/333"}],"replies":[{"embeddable":true,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/comments?post=377"}],"version-history":[{"count":1,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/posts\/377\/revisions"}],"predecessor-version":[{"id":378,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/posts\/377\/revisions\/378"}],"wp:attachment":[{"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/media?parent=377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/categories?post=377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pages.charlotte.edu\/colloquium\/wp-json\/wp\/v2\/tags?post=377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}