{"id":1783,"date":"2016-09-12T19:41:45","date_gmt":"2016-09-12T16:41:45","guid":{"rendered":"http:\/\/blog.profelis.com.tr\/?p=1783"},"modified":"2023-02-01T10:58:01","modified_gmt":"2023-02-01T07:58:01","slug":"false-positive-true-negative-neler-oluyor","status":"publish","type":"post","link":"https:\/\/profelis.com.tr\/en\/2016\/09\/12\/false-positive-true-negative-neler-oluyor\/","title":{"rendered":"False Positive, True Negative, Neler Oluyor?"},"content":{"rendered":"<h2>False Positive, True Negative, Neler Oluyor?<\/h2>\n<p>SIEM sistemleri ile iligili dan\u0131\u015fmanl\u0131k veya \u00fcr\u00fcn anlat\u0131m\u0131, problem \u00e7\u00f6z\u00fcm\u00fc yaparken genel olarak kar\u015f\u0131la\u015ft\u0131\u011f\u0131m\u0131z bir karma\u015fa var.<em>\u00a0False Positive, False Negative, True Positive, True Negative nedir, &#8220;kimse bunlar\u0131 bilmiyor!&#8221;<\/em><\/p>\n<p>S\u00f6z\u00fcm meclisten d\u0131\u015far\u0131, ancak \u00e7ok temel bir mant\u0131ksal bilgi konusunda dahi eksik olan sistem y\u00f6neticilerine baz\u0131 \u015feyleri anlatmak zor oluyor.<\/p>\n<ul>\n<li>True positive = do\u011fru\u00a0onaylanm\u0131\u015f (TP)<\/li>\n<li>False positive = hatal\u0131\u00a0onaylanm\u0131\u015f (TN)<\/li>\n<li>True negative =\u00a0do\u011fru reddedilmi\u015f (FP)<\/li>\n<li>False negative = hatal\u0131 reddedilmi\u015f (FN)<\/li>\n<\/ul>\n<p>TP: Lastik\u00e7inin patlak olan lasti\u011fime <em>&#8220;abi bu patlak&#8221;<\/em>\u00a0demesi (Malumun ilam\u0131, bravo!)<br \/>\nTN: Doktorun hasta olan biririne <em>&#8220;bi\u015feyin yok turp gibisin&#8221;<\/em>\u00a0demesi<br \/>\nFP: \u00dcst\u00fcn\u00fczde t-shirt ve kot ile AVM g\u00fcvenli\u011finden ge\u00e7erken cebinizdeki anahar\u0131n \u00f6tmesi ve g\u00fcvenlik\u00e7inin size ter\u00f6rist muamelesi \u00e7ekmesi, <em>&#8220;kenara ge\u00e7ip ceplerinizi bo\u015falt\u0131n&#8221;<\/em> demesi (bombay\u0131 cebinizde ta\u015f\u0131yorsunuz ya)<br \/>\nFN:\u00a0Kom\u015funun cam\u0131n\u0131 k\u0131rd\u0131ktan sonra annenizin <em>&#8220;benim o\u011flum yapmaz \u00f6yle bi\u015fey o k\u0131rmad\u0131&#8221;<\/em> diye kom\u015fuya \u00e7emkirip \u00fcste \u00e7\u0131kmas\u0131<\/p>\n<p>Tamam \u00f6rnekleri ak\u0131lda tutmak zor olabilir, size s\u00f6yle bir tablo sunay\u0131m daha belirleyici olmas\u0131 a\u00e7\u0131s\u0131ndan.<\/p>\n<table border=\"0\" cellpadding=\"5\" align=\"center\">\n<tbody>\n<tr>\n<td width=\"120\"><\/td>\n<td align=\"center\" width=\"180\">Sizin yapt\u0131\u011f\u0131n\u0131z\u0131 s\u00f6yl\u00fcyorlar<\/td>\n<td align=\"center\" width=\"180\">Sizin yapmad\u0131\u011f\u0131n\u0131z\u0131 s\u00f6yl\u00fcyorlar<\/td>\n<\/tr>\n<tr>\n<td>Siz\u00a0<strong>yapt\u0131n\u0131z<\/strong><\/td>\n<td align=\"center\" bgcolor=\"#FFCCFF\"><i>Hakl\u0131lar (TP)<\/i><\/td>\n<td align=\"center\" bgcolor=\"#FFCCFF\"><b>Haks\u0131zlar (FN)<\/b><\/td>\n<\/tr>\n<tr>\n<td>Siz\u00a0<strong>yapmad\u0131n\u0131z<\/strong><\/td>\n<td align=\"center\" bgcolor=\"#FFCCFF\"><b>Haks\u0131zlar (FP)<\/b><\/td>\n<td align=\"center\" bgcolor=\"#FFCCFF\"><i>Hakl\u0131lar (TN)<\/i><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Form\u00fcle edersek, bir olay\u0131 incelerken iki \u015feye s\u0131ras\u0131yla bakaca\u011f\u0131z. Birincil olarak durumun ne oldu\u011funa: do\u011fru mu (T) yanl\u0131\u015f m\u0131 (F), ard\u0131ndan da ne olarak tespit edildi\u011fine: olumlu (P) mu olumsuz mu (N)?<\/p>","protected":false},"excerpt":{"rendered":"<p>SIEM sistemleri ile iligili dan\u0131\u015fmanl\u0131k veya \u00fcr\u00fcn anlat\u0131m\u0131, problem \u00e7\u00f6z\u00fcm\u00fc yaparken genel olarak kar\u015f\u0131la\u015ft\u0131\u011f\u0131m\u0131z bir karma\u015fa var. False Positive, False Negative, True Positive, True Negative nedir, &#8220;kimse bunlar\u0131 bilmiyor!&#8221;<\/p>","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":["post-1783","post","type-post","status-publish","format-standard","hentry","category-yazi"],"_links":{"self":[{"href":"https:\/\/profelis.com.tr\/en\/wp-json\/wp\/v2\/posts\/1783","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/profelis.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/profelis.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/profelis.com.tr\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/profelis.com.tr\/en\/wp-json\/wp\/v2\/comments?post=1783"}],"version-history":[{"count":0,"href":"https:\/\/profelis.com.tr\/en\/wp-json\/wp\/v2\/posts\/1783\/revisions"}],"wp:attachment":[{"href":"https:\/\/profelis.com.tr\/en\/wp-json\/wp\/v2\/media?parent=1783"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/profelis.com.tr\/en\/wp-json\/wp\/v2\/categories?post=1783"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/profelis.com.tr\/en\/wp-json\/wp\/v2\/tags?post=1783"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}