Eric Nunes

4 Questions 13 Answers 0 Followers

Questions related from Eric Nunes

Can I using semi-supervised methods to classify data?

After reading a lot of semi-supervised methods, the way these methods work is by training a small labeled data, then predicting the labels of the unlabeled points incrementally. So if I want to...

15 April 2014 8,282 2 View

Importing a pointer with all the data that it points to from C++ to Matlab via mex?

I am working on a classification algorithm, for which I am training a decision tree in C++, via the mexFunction. I am storing all the nodes of the tree with their respective data points, each node...

05 November 2013 1,170 7 View

How do I determine the parallel complexity of an algorithm?

I am working on an unsupervised clustering/classification algorithm for which I am using a random forest frame work among other things. I am using the OpenMP, for parallel programming to construct...

11 August 2013 4,040 3 View

Is it possible to plot a ROC curve for a multiclass classification algorithm to study its performance, or is it better to analyze by confusion matrix?

I have a a multiclass data-set , which I am analyzing using classification algorithms, but I am having difficultlies plotting the ROC curve. I searched through a lot of papers and sites but most...

07 June 2013 1,303 25 View