{"id":54,"date":"2021-10-04T20:28:23","date_gmt":"2021-10-04T17:28:23","guid":{"rendered":"https:\/\/users.utu.fi\/ripekl\/?page_id=54"},"modified":"2026-01-02T14:35:00","modified_gmt":"2026-01-02T12:35:00","slug":"research","status":"publish","type":"page","link":"https:\/\/users.utu.fi\/ripekl\/index\/research\/","title":{"rendered":"Research"},"content":{"rendered":"<p>I am an Associate Professor of Imaging Instrumentation and Detection Technologies at <a href=\"http:\/\/turkupetcentre.fi\/\" target=\"_blank\" rel=\"noopener\">Turku PET Centre<\/a>, <a href=\"http:\/\/www.utu.fi\" target=\"_blank\" rel=\"noopener\">University of Turku<\/a>. My current research interests are medical imaging: imaging instrumentation, detector technologies and AI in imaging. I am also interested in longitudinal machine learning, geometric function theory, especially hyperbolic type geometries, and pedagogics.<\/p>\n<h3>Assorted links<\/h3>\n<p><a href=\"https:\/\/users.utu.fi\/ripekl\/wp-content\/uploads\/sites\/1227\/2026\/01\/CV_Klen_01_2026.pdf\" rel=\"\">My CV<\/a><br \/>\nOur research group <a href=\"https:\/\/sites.utu.fi\/intoimaging\/en\/\">Instrumentation and Image Processing<\/a><\/p>\n<p>Work address:<br \/>\nTurku PET Centre<br \/>\nc\/o Turku University Hospital<br \/>\nP.O. Box 52<br \/>\n20521 Turku<br \/>\nFinland<\/p>\n<hr \/>\n<p>SOFTWARE<\/p>\n<p>Here are links to some of programs related to my research.<\/p>\n<ul>\n<li style=\"list-style-type: none\">\n<ul>\n<li>CEll Type Extractor for Gene expression (<a href=\"https:\/\/elolab.utu.fi\/ceteg\/\" target=\"_blank\" rel=\"noopener\">CETEG<\/a> in R)<\/li>\n<li>Longitudinal machine learning algorithm likelihood contrasts (<a href=\"https:\/\/elolab.utu.fi\/lc\/\" target=\"_blank\" rel=\"noopener\">LC<\/a> in R)<\/li>\n<li>Risk calculator for cardiovascular events and acute kidney injury (<a href=\"https:\/\/elolab.shinyapps.io\/ahtriskcalculator\/\" target=\"_blank\" rel=\"noopener\">in R shiny<\/a>)<\/li>\n<li>Stable Iterative Variable Selection method (<a href=\"https:\/\/cran.r-project.org\/web\/packages\/sivs\/index.html\" target=\"_blank\" rel=\"noopener\">SIVS<\/a> in R)<\/li>\n<li>COvid-19 Disease Outcome Predictor (<a href=\"https:\/\/gomezvarelalab.em.mpg.de\/codop\/\" target=\"_blank\" rel=\"noopener\">CODOP<\/a>)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<p>FUNDING<\/p>\n<p>I wish to acknowledge the funders of my research including:<\/p>\n<ul>\n<li>European Research Council (EU)<\/li>\n<li>Erasmus+ (EU)<\/li>\n<li>Academy of Finland (Finland)<\/li>\n<li>Marsden Fund (New Zealand)<\/li>\n<li>Finnish Foundation for Cardiovascular Research<\/li>\n<li>Finnish Cultural Foundation<\/li>\n<li>Wihuri Foundation<\/li>\n<li>Maire and Aimo M\u00e4kinen Foundation<\/li>\n<li>Matemaattisen analyysin ja sen sovellusten tutkijakoulu (Finland)<\/li>\n<li>Turku University Foundation (Finland)<\/li>\n<li>NordForsk (Northern counrties)<\/li>\n<li>Finnish National Agency for Education (Finland)<\/li>\n<li>Turku Centre for Biotechnology (Finland)<\/li>\n<li>Turku PET Centre (Finland)<\/li>\n<li>Department of Mathematics and Statistic, University of Turku (Finland)<\/li>\n<li>Department of Mathematics and Statistic, University of Jyv\u00e4skyl\u00e4 (Finland)<\/li>\n<li>Department of Mathematics and Statistic, University of Turku (Finland)<\/li>\n<li>Institute of Natural and Mathematical Sciences, Massey University (New Zealand)<br \/>\n<hr \/>\n<p><b>Other links<\/b><\/p>\n<p><a href=\"https:\/\/www.researchgate.net\/profile\/Riku_Klen\" target=\"_blank\" rel=\"noopener\">My profile in ResearchGate<\/a><\/p>\n<p><a href=\"https:\/\/www.linkedin.com\/in\/riku-kl%C3%A9n-b568842\" target=\"_blank\" rel=\"noopener\">My profile in LinkedIn<\/a><\/p>\n<p><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/?term=riku+klen\" target=\"_blank\" rel=\"noopener\">My articles in PubMed<\/a><\/p>\n<p>Twitter <a href=\"https:\/\/twitter.com\/klenriku\" target=\"_blank\" rel=\"noopener\">@KlenRiku<\/a><\/p>\n<p><a href=\"https:\/\/www.utu.fi\/fi\/ihmiset\/riku-klen\" target=\"_blank\" rel=\"noopener\">My profile at University of Turku<\/a><\/p>\n<p><a href=\"https:\/\/www.bioimaging.fi\/msc-in-biomedical-imaging\/\" target=\"_blank\" rel=\"noopener\">MSc Programme in Biomedical Imaging<br \/>\n<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I am an Associate Professor of Imaging Instrumentation and Detection Technologies at Turku PET Centre, University of Turku. My current research interests are medical imaging: imaging instrumentation, detector technologies and AI in imaging. I am also interested in longitudinal machine learning, geometric function theory, especially hyperbolic type geometries, and pedagogics. Assorted links My CV Our [&hellip;]<\/p>\n","protected":false},"author":600,"featured_media":0,"parent":18,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-54","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/users.utu.fi\/ripekl\/wp-json\/wp\/v2\/pages\/54","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/users.utu.fi\/ripekl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/users.utu.fi\/ripekl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/users.utu.fi\/ripekl\/wp-json\/wp\/v2\/users\/600"}],"replies":[{"embeddable":true,"href":"https:\/\/users.utu.fi\/ripekl\/wp-json\/wp\/v2\/comments?post=54"}],"version-history":[{"count":28,"href":"https:\/\/users.utu.fi\/ripekl\/wp-json\/wp\/v2\/pages\/54\/revisions"}],"predecessor-version":[{"id":640,"href":"https:\/\/users.utu.fi\/ripekl\/wp-json\/wp\/v2\/pages\/54\/revisions\/640"}],"up":[{"embeddable":true,"href":"https:\/\/users.utu.fi\/ripekl\/wp-json\/wp\/v2\/pages\/18"}],"wp:attachment":[{"href":"https:\/\/users.utu.fi\/ripekl\/wp-json\/wp\/v2\/media?parent=54"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}