{"id":1452,"date":"2023-09-09T12:14:00","date_gmt":"2023-09-09T12:14:00","guid":{"rendered":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/?p=1452"},"modified":"2025-10-08T11:15:06","modified_gmt":"2025-10-08T11:15:06","slug":"8-september-improving-quality-of-or-data-sets","status":"publish","type":"post","link":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/8-september-improving-quality-of-or-data-sets\/","title":{"rendered":"8 September 2023 &#8211; Improving quality of OR data sets"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Presented by Dr. Inci Y\u00fcksel-Erg\u00fcn, Zuse Institute Berlin (ZIB)<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-right has-vivid-cyan-blue-color has-text-color has-link-color wp-elements-b58699aea3938bbd650226f5e3cb304c\"><a href=\"http:\/\/u.pc.cd\/yyrrtalK\" data-type=\"link\" data-id=\"http:\/\/u.pc.cd\/yyrrtalK\" target=\"_blank\" rel=\"noreferrer noopener\">8 SEPTEMBER 2023 WEBINAR RECORDING<\/a><\/p>\n<\/div>\n<\/div>\n\n\n\n<p>Data is ubiquitous in the age of analytics. The reliability of decisions based on OR studies depends on the underlying data quality. However, identifying pertinent data and assessing its quality is challenging. It is inevitable to employ highly-connected and consistent real-world data sets to model complex decisions. When expert knowledge becomes obsolete with disruptive changes, we require more complex models to comprehend the impacts of these changes.<\/p>\n\n\n\n<p>When conducting projects with industry using highly connected data, we encountered several cases where our analysis detected data errors that were too complex for humans to understand. Examples for our analysis include irreducible infeasible subsystems (IIS) of large mixed-integer programs (MIP) and bottlenecks in highly nonlinear networks. While detecting such errors is a significant achievement, removing them is extremely difficult.<\/p>\n\n\n\n<p>In this presentation, we highlight our insights on data quality improvement. We report our results on data from the German high-pressure gas transport network using methods from data preprocessing and mathematical optimization.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\" \/>\n\n\n\n<p>EURO Practitioners&#8217; Forum past and planned activities are available to the Forum members, as well as the wider public.<\/p>\n\n\n\n<p>Visit the&nbsp;<a href=\"https:\/\/www.euro-online.org\/websites\/or-in-practice\/\" target=\"_blank\" rel=\"noreferrer noopener\">website<\/a>&nbsp;and register as a member for free, to get the regular updates on all activities:&nbsp;<a href=\"https:\/\/www.euro-online.org\/websites\/or-in-practice\/register\/\" target=\"_blank\" rel=\"noreferrer noopener\">EPF Member registration page<\/a>. The recordings and details from previous webinars are also available on this website.<\/p>\n\n\n\n<p>Follow the Forum on&nbsp;<a href=\"https:\/\/twitter.com\/EwgPor\" target=\"_blank\" rel=\"noreferrer noopener\">Twitter<\/a>&nbsp;and&nbsp;<a href=\"https:\/\/www.linkedin.com\/signup\/cold-join?session_redirect=https%3A%2F%2Fwww%2Elinkedin%2Ecom%2Fgroups%2F8605101%2F&amp;trk=login_reg_redirect\" target=\"_blank\" rel=\"noreferrer noopener\">LinkedIN<\/a>&nbsp;, and feel free to get in touch.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Presented by Dr. Inci Y\u00fcksel-Erg\u00fcn, Zuse Institute Berlin (ZIB) 8 SEPTEMBER 2023 WEBINAR RECORDING Data is ubiquitous in the age of analytics. The reliability of decisions based on OR studies [&hellip;]<\/p>\n","protected":false},"author":4018,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-1452","post","type-post","status-publish","format-standard","hentry","category-webinars2023"],"_links":{"self":[{"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/posts\/1452"}],"collection":[{"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/users\/4018"}],"replies":[{"embeddable":true,"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/comments?post=1452"}],"version-history":[{"count":4,"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/posts\/1452\/revisions"}],"predecessor-version":[{"id":2072,"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/posts\/1452\/revisions\/2072"}],"wp:attachment":[{"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/media?parent=1452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/categories?post=1452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.euro-online.org\/websites\/or-in-practice\/wp-json\/wp\/v2\/tags?post=1452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}