{"id":190,"date":"2010-07-21T12:18:19","date_gmt":"2010-07-21T10:18:19","guid":{"rendered":"http:\/\/lwibs01.gm.fh-koeln.de\/blogs\/ciop\/?p=190"},"modified":"2016-02-17T17:58:27","modified_gmt":"2016-02-17T16:58:27","slug":"comparing-spo-tuned-gp-and-narx-prediction-models-for-stormwater-tank-fill-level-prediction","status":"publish","type":"post","link":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/2010\/07\/21\/comparing-spo-tuned-gp-and-narx-prediction-models-for-stormwater-tank-fill-level-prediction\/","title":{"rendered":"Comparing SPO-tuned GP and NARX Prediction Models for Stormwater Tank Fill Level Prediction"},"content":{"rendered":"<p class=\"lead\">\n\tPublication: Oliver Flasch, Thomas Bartz-Beielstein, Artur Davtyan, Patrick Koch and Wolfgang Konen, Comparing SPO-tuned GP and NARX Prediction Models for Stormwater Tank Fill Level Prediction. In P. Sobrevilla (ed.), Proc. WCCI, July 2010, Barcelona (<a href=\"http:\/\/www.gm.fh-koeln.de\/%7Ekonen\/Publikationen\/WCCI-10_wii-gesture.pdf\">PDF<\/a>)\n<\/p>\n<p><!--more--><\/p>\n<p>\n\tAbstract:\n<\/p>\n<p>\n\tSlow Feature Analysis (SFA) has been established<br \/>\n\tas a robust and versatile technique from the neurosciences to<br \/>\n\tlearn slowly varying functions from quickly changing signals.<br \/>\n\tRecently, the method has been also applied to classification<br \/>\n\ttasks. Here we apply SFA for the first time to a time series<br \/>\n\tclassification problem originating from gesture recognition. The<br \/>\n\tgestures used in our experiments are based on acceleration<br \/>\n\tsignals of the Bluetooth Wiimote controller (Nintendo). We<br \/>\n\tshow that SFA achieves results comparable to the well-known<br \/>\n\tRandom Forest predictor in shorter computation time, given<br \/>\n\ta sufficient number of training patterns. However &ndash; and this<br \/>\n\tis a novelty to SFA classification &ndash; we discovered that SFA<br \/>\n\trequires the number of training patterns to be strictly greater<br \/>\n\tthan the dimension of the nonlinear function space. If too few<br \/>\n\tpatterns are available, we find that the model constructed by<br \/>\n\tSFA severely overfits and leads to high test set errors. We<br \/>\n\tanalyze the reasons for overfitting and present a new solution<br \/>\n\tbased on parametric bootstrap to overcome this problem.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Publication: Oliver Flasch, Thomas Bartz-Beielstein, Artur Davtyan, Patrick Koch and Wolfgang Konen, Comparing SPO-tuned GP and NARX Prediction Models for Stormwater Tank Fill Level Prediction. In P. Sobrevilla (ed.), Proc. WCCI, July 2010, Barcelona<\/p>\n","protected":false},"author":41,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[230,233],"tags":[238,240,235,234,10150,10152],"class_list":["post-190","post","type-post","status-publish","format-standard","hentry","category-fiwa","category-publications","tag-bartz-beielstein","tag-flasch","tag-koch","tag-konen","tag-publications","tag-publicationsfiwa"],"acf":[],"_links":{"self":[{"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/posts\/190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/users\/41"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/comments?post=190"}],"version-history":[{"count":16,"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/posts\/190\/revisions"}],"predecessor-version":[{"id":935,"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/posts\/190\/revisions\/935"}],"wp:attachment":[{"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/media?parent=190"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/categories?post=190"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.gm.fh-koeln.de\/ciop\/wp-json\/wp\/v2\/tags?post=190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}