{"id":3445,"date":"2010-06-01T14:29:05","date_gmt":"2010-06-01T14:29:05","guid":{"rendered":"http:\/\/obegef.pt\/wordpress\/?p=3445"},"modified":"2014-01-06T08:58:51","modified_gmt":"2014-01-06T08:58:51","slug":"metodos-de-data-mining-para-a-deteccao-de-fraude","status":"publish","type":"post","link":"https:\/\/obegef.pt\/wordpress\/?p=3445","title":{"rendered":"M\u00e9todos de Data Mining para a Detec\u00e7\u00e3o de Fraude"},"content":{"rendered":"<table width=\"100%\" border=\"0\" cellspacing=\"5\" cellpadding=\"5\" align=\"center\">\n<tbody>\n<tr>\n<td colspan=\"2\" align=\"left\">M\u00e9todos de Data Mining para a Detec\u00e7\u00e3o de Fraude<br \/>\nData Mining methods for Fraud Detection<\/td>\n<\/tr>\n<tr>\n<td colspan=\"2\">Coordenador: Lu\u00eds Torgo<\/td>\n<\/tr>\n<tr>\n<td align=\"left\" valign=\"top\" width=\"50%\"><img decoding=\"async\" style=\"margin-left: 5px; margin-right: 5px; border: 0px;\" alt=\"texto em portugu\ufffds\" src=\"http:\/\/obegef.pt\/wordpress\/wp-content\/uploads\/2009\/01\/pt.jpg\" align=\"bottom\" border=\"0\" hspace=\"5\" \/>O objectivo principal desta linha de investiga\u00e7\u00e3o \u00e9 o desenvolvimento de ferramentas e m\u00e9todos para serem usados de forma a optimizarem recursos humanos e\/ou financeiros em tarefas de detec\u00e7\u00e3o de fraude. As ferramentas de data mining podem ser usadas para apoiar a decis\u00e3o de que casos inspeccionar no contexto de aplica\u00e7\u00f5es de detec\u00e7\u00e3o fraude. Estas tarefas s\u00e3o tipicamente restringidas pela exist\u00eancia de uma quantidade limitada de recursos humanos e\/ou financeiros para as levar a cabo. Esta linha de investiga\u00e7\u00e3o ambiciona desenvolver m\u00e9todos para melhor apoiar estas decis\u00f5es de inspec\u00e7\u00e3o. Concretamente, nesta linha de investiga\u00e7\u00e3o foram cumpridos estes objectivos atrav\u00e9s do:<\/p>\n<ul style=\"text-align: justify;\">\n<li>Desenvolvimento de modelos de ranking de outliers para apoiar a decis\u00e3o de inspec\u00e7\u00e3o.<\/li>\n<li>Desenvolvimento de modelos que incorporem outros tipos de crit\u00e9rios para al\u00e9m da probabilidade de fraude, na produ\u00e7\u00e3o dos rankings de inspec\u00e7\u00e3o. Concretamente foram desenvolvidos m\u00e9todos de produ\u00e7\u00e3o de rankings de inspec\u00e7\u00e3o que incorporam crit\u00e9rios ligados aos custos e eventuais retornos das tarefas de inspec\u00e7\u00e3o.<\/li>\n<li>Compara\u00e7\u00e3o dos modelos desenvolvidos com outros existentes em v\u00e1rias aplica\u00e7\u00f5es reais.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">O trabalho desenvolvido nesta linha de investiga\u00e7\u00e3o foi suportado financeiramente e enquadrado no contexto do projecto FCT oRANKI (PTDC\/EIA\/68322\/2006). Mais detalhes sobre este projecto podem ser obtidos no site do projecto:<br \/>\n<a id=\"liaad\" href=\"http:\/\/liaad.inescporto.pt\/modys\/projects\/oranki\" target=\"_blank\" name=\"liaad\">http:\/\/liaad.inescporto.pt\/modys\/projects\/oranki<\/a><\/p>\n<\/td>\n<td align=\"left\" valign=\"top\" width=\"50%\"><img decoding=\"async\" style=\"margin-left: 5px; margin-right: 5px; border: 0px;\" alt=\"Texto em ingl\ufffds\" src=\"http:\/\/obegef.pt\/wordpress\/wp-content\/uploads\/2009\/01\/en.jpg\" align=\"bottom\" border=\"0\" hspace=\"5\" \/>The main goal of this research line is the development of tools and methods to optimize the human and financial resources allocated to fraud detection tasks. Data mining tools can be used to provide support on the decision of which cases to inspect in the context of fraud detection applications. These tasks are typically constrained by a limited amount of available human and\/or financial resources. This research line aims at the development of methods to better support these inspection decisions. Namely, in the context of this line the following main objectives were already attained:<\/p>\n<ul style=\"text-align: justify;\">\n<li>Development of outlier ranking methods to support the inspection decisions.<\/li>\n<li>Development of models that incorporate different criteria apart from the probability of fraud in the production of inspection rankings. Namely, we have developed models that produce rankings that take into account not only the probability of fraud but also the estimated costs of inspection and also the estimated return of the inspection activities if the cases are confirmed as fraudulent.<\/li>\n<li>Comparison of the developed models with other existing alternatives in the context of real world applications.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">The work that was carried out in the context of this research line was financially supported by the FCT project oRANKI (PTDC\/EIA\/68322\/2006). Further details on this project can be obtained at the project web site:<br \/>\n<a id=\"liaad\" href=\"http:\/\/liaad.inescporto.pt\/modys\/projects\/oranki\" target=\"_blank\" name=\"liaad\">http:\/\/liaad.inescporto.pt\/modys\/projects\/oranki<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u00e9todos de Data Mining para a Detec\u00e7\u00e3o de Fraude Data Mining methods for Fraud Detection Coordenador: Lu\u00eds Torgo O objectivo principal desta linha de investiga\u00e7\u00e3o \u00e9 o desenvolvimento de ferramentas e m\u00e9todos para serem usados de forma a optimizarem recursos humanos e\/ou financeiros em tarefas de detec\u00e7\u00e3o de fraude. As ferramentas de data mining podem&hellip; <a href=\"https:\/\/obegef.pt\/wordpress\/?p=3445\">Ler mais&#8230;<\/a><\/p>\n","protected":false},"author":52,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[52],"tags":[],"class_list":["post-3445","post","type-post","status-publish","format-standard","hentry","category-investigacao"],"_links":{"self":[{"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3445","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/52"}],"replies":[{"embeddable":true,"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3445"}],"version-history":[{"count":8,"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3445\/revisions"}],"predecessor-version":[{"id":7098,"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3445\/revisions\/7098"}],"wp:attachment":[{"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obegef.pt\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}