Open eveningkid opened 5 years ago
Hello!
I don't think I can find time to dig into this.
But there is a build of libsvm in asm which is a subset of javascript so it is actually plain javascript. You should be able to use it for your project.
Right, I did try this as well but turned out that it would fail once running in React Native...just thought I would switch back to a simpler version.
Anyways, thanks for your reply.
Hello,
I am trying to make a simple classification using SVM with the following snippet:
const SVM = require('ml-svm'); const X = [[-1, -1], [-2, -1], [1, 1], [2, 1]]; const y = [1, 1, 2, 2]; const model = new SVM({ C: 1.0, tol: 0.0001, }); model.train(X, y); model.predict([[-0.8, -1]]); // => sometimes -1 (wrong), sometimes 1 (correct)
I don't understand why it sometimes predict -1, which is not even an available class... It happens randomly so I thought it may be related to whether or not the algorithm converged?
I really hope to use this library as it runs in React Native using plain JS (which libsvm doesn't)! :(
Do you know what could be the problem?
Thank you!
This is not a issue,model.predictOne
is designed to return 1 or -1 always, and model.predict
depends on this method.
You can see the model.predictOne
implementation here:
https://github.com/mljs/svm/blob/392a1d09b33faa3be43dbb119114642cba3a9c64/src/svm.js#L204-L207
Hello,
I am trying to make a simple classification using SVM with the following snippet:
I don't understand why it sometimes predict -1, which is not even an available class... It happens randomly so I thought it may be related to whether or not the algorithm converged?
I really hope to use this library as it runs in React Native using plain JS (which libsvm doesn't)! :(
Do you know what could be the problem?
Thank you!