"Matrix" is an interface for matrix operations needed by perceptron learning.
"denseMatrix" is an implementation of "Matrix", which is weights for "Model".
Fix typos.
Validate the shape of a matrix to be added.
Validate the shape of a matrix to be added.
tmp
Implement multiplication between two matrices for multi-class perceptron learning.
Impplement multiclass-classifier.
"(*Classifier).Update" classifies the instance and updates the weight matrix.
Fix typos.
Get the update matrix for multi-class perceptron learning.
Fix: "(*denseMatrix).Resize" changes the number of the rows and the columns itself.
Fix: "(*denseMatrix).NonZeros" leads infinite loop.
Remove "vector" package.
Merge branch 'feature/multi-class'