Multi-class classification for large database (matlab)

Question

Can you suggest any implementation (matlab) of Multi-class classification algorithm for large database, I tried libsvm it's good except for large database and for the liblinear I can't use it for the multi classification

Answer 1

If you want to use liblinear for multi class classification, you can use one vs all technique. For more information Look at this.

But if you have large database then use of SVM is not recommended. As Run time complexity of SVM is O(N * N * m)

N = number of samples in data m = number of features in data

So, alternatively You can use Neural Network. You can start with nntool available in MATLAB.