{"id":431,"date":"2016-07-14T17:26:54","date_gmt":"2016-07-14T20:26:54","guid":{"rendered":"https:\/\/sbia.org.br\/lnlm\/?page_id=431"},"modified":"2016-07-14T17:26:54","modified_gmt":"2016-07-14T20:26:54","slug":"vol6-no2-art4","status":"publish","type":"page","link":"https:\/\/sbia.org.br\/lnlm\/publicacoes\/vol6-no2\/vol6-no2-art4\/","title":{"rendered":"Redes Neurais Artificiais com Fun\u00e7\u00f5es de Ativa\u00e7\u00e3o Complemento LOG-LOG e PROBIT  para Aproximar Fun\u00e7\u00f5es na Presen\u00e7a de Observa\u00e7\u00f5es Extremas"},"content":{"rendered":"<p><strong>T\u00edtulo:<\/strong> Redes Neurais Artificiais com Fun\u00e7\u00f5es de Ativa\u00e7\u00e3o Complemento LOG-LOG e PROBIT  para Aproximar Fun\u00e7\u00f5es na Presen\u00e7a de Observa\u00e7\u00f5es Extremas<\/p>\n<p><strong>Autores:<\/strong> Gomes, Gecynalda Soares da S.; Ludermir, Teresa B.<\/p>\n<p align=\"justify\"><strong>Resumo:<\/strong> Em redes neurais artificiais as fun\u00e7\u00f5es de ativa\u00e7\u00e3o mais utilizadas na pr\u00e1tica s\u00e3o a fun\u00e7\u00e3o sigm\u00f3ide log\u00edstica e a fun\u00e7\u00e3o tangente hiperb\u00f3lica, dependendo das caracter\u00edsticas dos dados. Entretanto, a escolha da fun\u00e7\u00e3o de ativa\u00e7\u00e3o pode influenciar fortemente o desempenho e a complexidade da rede neural. Por isso, propomos o uso de duas fun\u00e7\u00f5es simples, complemento log-log e probit, como fun\u00e7\u00f5es de ativa\u00e7\u00e3o com o objetivo de melhorar o desempenho e a complexidade da rede neural mesmo na presen\u00e7a de observa\u00e7\u00f5es extremas (outliers).<\/p>\n<p><strong>Palavras-chave:<\/strong> Redes Neurais; Fun\u00e7\u00f5es de Ativa\u00e7\u00e3o; Complemento log-log; Probit; Observa\u00e7\u00f5es Extremas<\/p>\n<p><strong>P\u00e1ginas:<\/strong> 12<\/p>\n<p><strong>C\u00f3digo DOI:<\/strong> <a href=\"http:\/\/dx.doi.org\/10.21528\/lnlm-vol6-no2-art4\">10.21528\/lmln-vol6-no2-art4<\/a><\/p>\n<p><strong>Artigo em PDF:<\/strong> <a href=\"https:\/\/sbia.org.br\/lnlm\/wp-content\/uploads\/sites\/4\/2016\/07\/vol6-no2-art4.pdf\" rel=\"\">vol6-no2-art4.pdf<\/a><\/p>\n<p><strong>Arquivo BibTex:<\/strong> <a href=\"https:\/\/sbia.org.br\/lnlm\/wp-content\/uploads\/sites\/4\/2016\/07\/vol6-no2-art4.bib\" rel=\"\">vol6-no2-art4.bib<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u00edtulo: Redes Neurais Artificiais com Fun\u00e7\u00f5es de Ativa\u00e7\u00e3o Complemento LOG-LOG e PROBIT para Aproximar Fun\u00e7\u00f5es na Presen\u00e7a de Observa\u00e7\u00f5es Extremas Autores: Gomes, Gecynalda Soares da S.; Ludermir, Teresa B. Resumo: Em redes neurais artificiais as fun\u00e7\u00f5es de ativa\u00e7\u00e3o mais utilizadas <a href=\"https:\/\/sbia.org.br\/lnlm\/publicacoes\/vol6-no2\/vol6-no2-art4\/\" class=\"read-more\">Read More &#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":423,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-431","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Redes Neurais Artificiais com Fun\u00e7\u00f5es de Ativa\u00e7\u00e3o Complemento LOG-LOG e PROBIT para Aproximar Fun\u00e7\u00f5es na Presen\u00e7a de Observa\u00e7\u00f5es Extremas - Learning and NonLinear Models<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sbia.org.br\/lnlm\/publicacoes\/vol6-no2\/vol6-no2-art4\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Redes Neurais Artificiais com Fun\u00e7\u00f5es de Ativa\u00e7\u00e3o Complemento LOG-LOG e PROBIT para Aproximar Fun\u00e7\u00f5es na Presen\u00e7a de Observa\u00e7\u00f5es Extremas - Learning and NonLinear Models\" \/>\n<meta property=\"og:description\" content=\"T\u00edtulo: Redes Neurais Artificiais com Fun\u00e7\u00f5es de Ativa\u00e7\u00e3o Complemento LOG-LOG e PROBIT para Aproximar Fun\u00e7\u00f5es na Presen\u00e7a de Observa\u00e7\u00f5es Extremas Autores: Gomes, Gecynalda Soares da S.; Ludermir, Teresa B. 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