{"id":1752,"date":"2023-07-25T03:26:59","date_gmt":"2023-07-25T03:26:59","guid":{"rendered":"https:\/\/statorials.org\/tr\/negatif-aic\/"},"modified":"2023-07-25T03:26:59","modified_gmt":"2023-07-25T03:26:59","slug":"negatif-aic","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/negatif-aic\/","title":{"rendered":"Negatif aic de\u011ferleri nas\u0131l yorumlan\u0131r?"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Akaike Bilgi Kriteri (AIC), farkl\u0131 regresyon modellerinin uyumunu kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in kullan\u0131lan bir \u00f6l\u00e7\u00fcmd\u00fcr.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki \u015fekilde hesaplan\u0131r:<\/span><\/p>\n<p> <span style=\"color: #000000;\">AIC = 2K \u2013 2 <em>ln<\/em> (L)<\/span><\/p>\n<p> <span style=\"color: #000000;\">Alt\u0131n:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>K:<\/strong> Model parametrelerinin say\u0131s\u0131.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong><em>ln<\/em> (L)<\/strong> : Modelin log-olas\u0131l\u0131\u011f\u0131. Bu bize veriler g\u00f6z \u00f6n\u00fcne al\u0131nd\u0131\u011f\u0131nda modelin ne kadar muhtemel oldu\u011funu s\u00f6yler.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Birden fazla regresyon modelini yerle\u015ftirdikten sonra<\/span> <span style=\"color: #000000;\">her modelin AIC de\u011ferini kar\u015f\u0131la\u015ft\u0131rabilirsiniz. En d\u00fc\u015f\u00fck AIC de\u011ferine sahip model en iyi uyumu sa\u011flar.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\u00d6\u011frencilerin AIC hakk\u0131nda s\u0131kl\u0131kla sorduklar\u0131 soru \u015fudur: <em><strong>Negatif AIC de\u011ferleri nas\u0131l yorumlan\u0131r?<\/strong><\/em><\/span><\/p>\n<p> <span style=\"color: #000000;\">Basit cevap: <strong>AIC de\u011feri ne kadar d\u00fc\u015f\u00fckse model o kadar iyi uyum sa\u011flar. AIC de\u011ferinin mutlak de\u011feri \u00f6nemli de\u011fildir. Bu olumlu ya da olumsuz olabilir.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">\u00d6rne\u011fin Model 1&#8217;in AIC de\u011feri -56,5 ve Model 2&#8217;nin AIC de\u011feri -103,3 ise Model 2 daha iyi uyum sa\u011flar. Her iki AIC de\u011ferinin de negatif olmas\u0131 \u00f6nemli de\u011fildir.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Negatif AIC De\u011ferlerini Anlamak<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">AIC&#8217;yi hesaplamak i\u00e7in kullan\u0131lan form\u00fcle bakarsak, belirli bir regresyon modelinin nas\u0131l negatif bir AIC de\u011feriyle sonu\u00e7lanabilece\u011fini g\u00f6rmek kolayd\u0131r:<\/span><\/p>\n<p> <span style=\"color: #000000;\">AIC = 2K \u2013 2 <em>ln<\/em> (L)<\/span><\/p>\n<p> <span style=\"color: #000000;\">Diyelim ki 7 parametreli ve log-olabilirli\u011fi 70 olan bir modelimiz var.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu modelin AIC&#8217;sini \u015fu \u015fekilde hesaplayabiliriz:<\/span><\/p>\n<p> <span style=\"color: #000000;\">AIC = 2*7 \u2013 2*70 = <strong>-126<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Daha sonra hangi modelin en iyi uyumu sa\u011flad\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in bu AIC de\u011ferini di\u011fer regresyon modelleriyle kar\u015f\u0131la\u015ft\u0131rabiliriz.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Negatif AIC De\u011ferlerine \u0130li\u015fkin Ders Kitab\u0131 Referanslar\u0131<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Negatif AIC de\u011ferlerine ili\u015fkin faydal\u0131 bir ders kitab\u0131 referans\u0131 <a href=\"https:\/\/books.google.ca\/books?id=fT1Iu-h6E-oC&amp;printsec=frontcover#v=onepage&amp;q&amp;f=false\" target=\"_blank\" rel=\"noopener\"><em>, Model Se\u00e7imi ve \u00c7ok Modlu \u00c7\u0131kar\u0131m: Pratik Bilgi-Teorik Yakla\u015f\u0131m,<\/em><\/a> sayfa 62&#8217;den gelir:<\/span><\/p>\n<blockquote>\n<p> <span style=\"color: #000000;\">Genellikle AIC pozitiftir; ancak herhangi bir katk\u0131 sabiti ile kayd\u0131r\u0131labilir ve baz\u0131 de\u011fi\u015fiklikler negatif AIC de\u011ferleri ile sonu\u00e7lanabilir&#8230; Bu, AIC de\u011ferinin mutlak boyutu de\u011fildir, dikkate al\u0131nan t\u00fcm modellerdeki g\u00f6receli de\u011ferlerdir ve \u00f6zellikle AIC de\u011ferleri aras\u0131ndaki farklar \u00f6nemlidir.<\/span><\/p>\n<\/blockquote>\n<p> <span style=\"color: #000000;\">Bir ba\u015fka yararl\u0131 referans ise <a href=\"https:\/\/www.amazon.com\/Serious-Stat-advanced-statistics-behavioral\/dp\/0230577180\" target=\"_blank\" rel=\"noopener\"><em>Ciddi \u0130statistikler: Davran\u0131\u015f Bilimleri \u0130\u00e7in Geli\u015fmi\u015f \u0130statistikler K\u0131lavuzu<\/em><\/a> sayfa 402&#8217;den gelmektedir:<\/span><\/p>\n<blockquote>\n<p> <span style=\"color: #000000;\">Olas\u0131l\u0131kla oldu\u011fu gibi, AIC&#8217;nin mutlak de\u011feri b\u00fcy\u00fck \u00f6l\u00e7\u00fcde anlams\u0131zd\u0131r (keyfi bir sabit taraf\u0131ndan belirlenir). Bu sabit verilere ba\u011fl\u0131 oldu\u011fundan AIC, ayn\u0131 \u00f6rneklere uyan modelleri kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in kullan\u0131labilir.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Dolay\u0131s\u0131yla, dikkate al\u0131nan t\u00fcm makul modeller aras\u0131nda en iyi model, en k\u00fc\u00e7\u00fck AIC de\u011ferine sahip oland\u0131r (ger\u00e7ek modelle kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda en az bilgi kayb\u0131).<\/span><\/p>\n<\/blockquote>\n<p> <span style=\"color: #000000;\">Her iki ders kitab\u0131nda da belirtildi\u011fi gibi AIC&#8217;nin mutlak de\u011feri \u00f6nemli de\u011fildir. Modellerin uyumunu kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in basit\u00e7e AIC de\u011ferlerini kullan\u0131r\u0131z ve en d\u00fc\u015f\u00fck AIC de\u011ferine sahip model en iyisidir.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Ek kaynaklar<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/tr\/aicden-r'ye\/\" target=\"_blank\" rel=\"noopener\">R&#8217;de AIC nas\u0131l hesaplan\u0131r<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/pythonda-aic\/\" target=\"_blank\" rel=\"noopener\">Python&#8217;da AIC Nas\u0131l Hesaplan\u0131r?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Akaike Bilgi Kriteri (AIC), farkl\u0131 regresyon modellerinin uyumunu kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in kullan\u0131lan bir \u00f6l\u00e7\u00fcmd\u00fcr. A\u015fa\u011f\u0131daki \u015fekilde hesaplan\u0131r: AIC = 2K \u2013 2 ln (L) Alt\u0131n: K: Model parametrelerinin say\u0131s\u0131. ln (L) : Modelin log-olas\u0131l\u0131\u011f\u0131. Bu bize veriler g\u00f6z \u00f6n\u00fcne al\u0131nd\u0131\u011f\u0131nda modelin ne kadar muhtemel oldu\u011funu s\u00f6yler. Birden fazla regresyon modelini yerle\u015ftirdikten sonra her modelin AIC de\u011ferini [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-1752","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Negatif AIC de\u011ferleri nas\u0131l yorumlan\u0131r - Statorials<\/title>\n<meta name=\"description\" content=\"Bu e\u011fitimde, regresyon modellerinde negatif AIC de\u011ferlerinin nas\u0131l yorumlanaca\u011f\u0131 \u00f6rneklerle a\u00e7\u0131klanmaktad\u0131r.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/tr\/negatif-aic\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Negatif AIC de\u011ferleri nas\u0131l yorumlan\u0131r - Statorials\" \/>\n<meta property=\"og:description\" content=\"Bu e\u011fitimde, regresyon modellerinde negatif AIC de\u011ferlerinin nas\u0131l yorumlanaca\u011f\u0131 \u00f6rneklerle a\u00e7\u0131klanmaktad\u0131r.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/tr\/negatif-aic\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T03:26:59+00:00\" \/>\n<meta name=\"author\" content=\"Dr.benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr.benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/tr\/negatif-aic\/\",\"url\":\"https:\/\/statorials.org\/tr\/negatif-aic\/\",\"name\":\"Negatif AIC de\u011ferleri nas\u0131l yorumlan\u0131r - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/tr\/#website\"},\"datePublished\":\"2023-07-25T03:26:59+00:00\",\"dateModified\":\"2023-07-25T03:26:59+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/tr\/#\/schema\/person\/365dc158a39a7c8ae256355451e3de48\"},\"description\":\"Bu e\u011fitimde, regresyon modellerinde negatif AIC de\u011ferlerinin nas\u0131l yorumlanaca\u011f\u0131 \u00f6rneklerle a\u00e7\u0131klanmaktad\u0131r.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/tr\/negatif-aic\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/tr\/negatif-aic\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/tr\/negatif-aic\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Ev\",\"item\":\"https:\/\/statorials.org\/tr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Negatif aic de\u011ferleri nas\u0131l yorumlan\u0131r?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/tr\/#website\",\"url\":\"https:\/\/statorials.org\/tr\/\",\"name\":\"Statorials\",\"description\":\"\u0130statistik okuryazarl\u0131\u011f\u0131 rehberiniz!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/tr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"tr\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/tr\/#\/schema\/person\/365dc158a39a7c8ae256355451e3de48\",\"name\":\"Dr.benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"tr\",\"@id\":\"https:\/\/statorials.org\/tr\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/tr\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/tr\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr.benjamin anderson\"},\"description\":\"Merhaba, ben Benjamin, emekli bir istatistik profes\u00f6r\u00fc ve Statorials \u00f6\u011fretmenine d\u00f6n\u00fc\u015ft\u00fcm. \u0130statistik alan\u0131ndaki kapsaml\u0131 deneyimim ve uzmanl\u0131\u011f\u0131mla, \u00f6\u011frencilerimi Statorials arac\u0131l\u0131\u011f\u0131yla g\u00fc\u00e7lendirmek i\u00e7in bilgilerimi payla\u015fmaya can at\u0131yorum. 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