Hi, I am trying to solve a 2-class classification problem using Apache Mahout NaiveBayes. I am using 0.5 version, but I am not able to pass a modified custom feature vector to the train method.
here is a small snippet **BayesParameters params = new BayesParameters(); System.out.println("Setting parameters"); params.setGramSize( 1 ); params.set( "verbose", "true" ); params.set( "classifierType", "bayes" ); params.set( "defaultCat", "OTHER" ); params.set( "encoding", "UTF-8" ); params.set( "alpha_i", "1.0" ); params.set( "dataSource", "hdfs" ); params.set( "basePath", outputTrainingObjectPath ); System.out.println("parameters set"); try { Path input = new Path( trainPath); Path output = new Path(outputTrainingObjectPath); System.out.println("training starts"); TrainClassifier.trainNaiveBayes( input,output,params); }catch(Exception e){ e.printStackTrace(); }** Is there a way to pass our own custom-generated features. I referred to Ap ache Mahout in Action, it uses RandomAccessVectors as the custom-features, but the *train* method of Naive Bayes is not designed to accept the custom features it seems. Thanks in advance. Sabyasachi Upadhyay, *Software Engineer* *Quikr Technology,* *Bangalore* *Skype* - sabyasachi.upadhyay1 *Phone* - 9741263004 On Sun, Feb 1, 2015 at 2:15 AM, Sabyasachi Upadhyay <supadh...@quikr.com> wrote: > Hi, > > I am trying to solve a 2-class classification problem using Apache Mahout > NaiveBayes. I am using 0.5 version, but I am not able to pass a modified > custom feature vector to the train method. > > here is a small snippet > > **BayesParameters params = new BayesParameters(); > System.out.println("Setting parameters"); > params.setGramSize( 1 ); > params.set( "verbose", "true" ); > params.set( "classifierType", "bayes" ); > params.set( "defaultCat", "OTHER" ); > params.set( "encoding", "UTF-8" ); > params.set( "alpha_i", "1.0" ); > params.set( "dataSource", "hdfs" ); > params.set( "basePath", outputTrainingObjectPath ); > System.out.println("parameters set"); > try { > > Path input = new Path( trainPath); > Path output = new Path(outputTrainingObjectPath); > > System.out.println("training starts"); > TrainClassifier.trainNaiveBayes( input,output,params); > }catch(Exception e){ > e.printStackTrace(); > }** > > Is there a way to pass our own custom-generated features. I referred to Ap > ache Mahout in Action, it uses RandomAccessVectors as the custom-features, > but the *train* method of Naive Bayes is not designed to accept the > custom features it seems. > > Thanks in advance. > > > Sabyasachi Upadhyay, > *Software Engineer* > *Quikr Technology,* > *Bangalore* > *Skype* - sabyasachi.upadhyay1 > *Phone* - 9741263004 >