I am trying to teach my SVM algorithm using data of clicks and conversion by people who see the banners. The main problem is that the clicks is around 0.2% of all data so it's big disproportion in ...

I am researching whether or not it is possible to automate the scoring of student's code based off of coding style. This includes things like avoiding duplicate code, commented out code, bad naming...

I understand the role of the bias node in neural nets, and why it is important for shifting the activation function in small networks. My question is this: is the bias still important in very large...

I employed RPart to build a decision tree. Without a problem, I am doing this. But, I need to learn (or count) how many times the tree has been splitted? I mean, how many rules (if-else statement) ...

I've just run through the Wikipedia page about SVMs, and this line caught my eyes: "If the kernel used is a Gaussian radial basis function, the corresponding feature space is a Hilbert space of inf...

(N=90) Point ahead Prediction using Neural Network: I am trying to predict 3 minutes ahead i.e. 180 points ahead. Because I compressed my time series data as taking the mean of every 2 points as o...

I have a dataset with some nominal values as features. The training set I have has a set of values for the nominal features which are absent in my test set. For instance my feature in the training...

I'm writing a machine-learning solution for a problem that may have more than one possible classifier, depending on the data. so I've collected several classifiers, each of them performs better tha...