<div dir="ltr"><div class="gmail_default" style="font-family:"arial narrow",sans-serif;color:rgb(11,83,148)">Pessoal,</div><div class="gmail_default" style="font-family:"arial narrow",sans-serif;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:"arial narrow",sans-serif;color:rgb(11,83,148)">Estou tentando treinar um modelo com 192 atributos e meu objetivo é, no pós-treinamento, identificar os atributos mais importantes. (seleção de features).</div><div class="gmail_default" style="font-family:"arial narrow",sans-serif;color:rgb(11,83,148)"><br></div><div class="gmail_default" style="font-family:"arial narrow",sans-serif;color:rgb(11,83,148)">A questão é que estou tendo problemas para treinar o modelo porque o processamento é extremamente lento. Pesquisei sobre o parallel e o doParallel e coloquei no meu código mas aparentemente não obtive resultados segue um trecho do código:</div><div class="gmail_default" style="font-family:"arial narrow",sans-serif;color:rgb(11,83,148)"><br></div><div class="gmail_default"><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif">library(caret)</font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif">library(doParallel)</font></div><div class="gmail_default"><br></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif">myControl <- trainControl(method = "repeatedcv", number = 10, repeats = 3, allowParallel = TRUE)</font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif"><br></font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif">t<-proc.time()</font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif"><br></font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif">cl <- makeCluster(detectCores())</font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif"><br></font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif">registerDoParallel(cl)</font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif"><br></font></div><div class="gmail_default"><span style="color:rgb(11,83,148);font-family:"arial narrow",sans-serif">model <- train(GENRE~., data=dtset_genres, method="lvq", preProcess = "scale", trControl = myControl)</span><br></div><div class="gmail_default"><br></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif">stopCluster(cl)</font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif"><br></font></div><div class="gmail_default"><font color="#0b5394" face="arial narrow, sans-serif">proc.time()-t</font></div></div><div><br></div><div><br></div><div><div class="gmail_default" style="font-family:"arial narrow",sans-serif;color:rgb(11,83,148)">​Alguma sugestão?​</div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="text-align:left"><font color="#0c343d" face="arial narrow, sans-serif" size="2">Att,</font></div><div style="text-align:center"><font color="#0c343d" face="arial narrow, sans-serif" size="2"><br></font></div><div style="text-align:left"><font color="#0c343d" face="arial narrow, sans-serif" size="2">| Fernando Gama da Mata |</font></div><div style="text-align:left"><span style="color:rgb(12,52,61);font-family:"arial narrow",sans-serif;font-size:small">| Database Specialist | Master's Degree UFPA |</span><font color="#0c343d" face="arial narrow, sans-serif" size="2"><br></font></div><div style="text-align:left"><img src="https://docs.google.com/uc?export=download&id=0B9Ijc2GhRVALN0poeWViVDhCOUk&revid=0B9Ijc2GhRVALNWo1bmc1eVhTWUdGdFdRWjM4VUxjOHRoaUJZPQ" width="96" height="96"><br></div><div style="text-align:left"><div><span style="font-size:small;color:rgb(12,52,61);font-family:"arial narrow",sans-serif">| Contacts: +55 91 99150 0365 | <a href="mailto:f.fabiogama88@gmail.com" target="_blank">f.fabiogama88@gmail.com</a> | Social Networks: </span><span style="color:rgb(12,52,61);font-family:"arial narrow",sans-serif"><font size="4">[</font></span><span style="font-size:12.8px"><a href="https://www.facebook.com/fernando.gama.13" target="_blank"><img src="http://www.huguesjohnson.com/images/facebook-16x16.gif" style="font-size: 12.8px;"></a></span><font size="4">]</font><span style="font-size:12.8px;color:rgb(12,52,61);font-family:"arial narrow",sans-serif"><font size="4">[</font></span><a href="https://plus.google.com/+FernandoGama13" target="_blank"><img src="http://static.cegoc.pt/wp-content/themes/cegoc/images/gplus.png" style="font-size: 12.8px;"></a><font size="4">]</font><span style="font-size:12.8px;color:rgb(12,52,61);font-family:"arial narrow",sans-serif"><font size="4">[<span></span><span></span></font></span><a href="https://www.linkedin.com/in/fernandogama" target="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