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https://www.mathworks.com/matlabcentral/answers/322265-plot-support-vectors-margin-and-decision-boundary-using-libsvm-matlab-interface
Jan 28, 2017 · I am using Matlab-Libsvm Interface for binary classification using SVM. I have multi dimensional data. I need to plot decision boundary and margin along with support vectors.
https://stackoverflow.com/questions/9480605/what-is-the-relation-between-the-number-of-support-vectors-and-training-data-and
I am using LibSVM to classify some documents. The documents seem to be a bit difficult to classify as the final results show. However, I have noticed something while training my models. and that is: If my training set is for example 1000 around 800 of them are selected as support vectors.
https://stackoverflow.com/questions/28556266/plot-svm-margins-using-matlab-and-libsvm
I am using svmlib to classify linearly two dimensional non-separable data. I am able to train the svm and obtain w and b using svmlib. Using this information I can plot the decision boundary, along with the support vectors, but I am not sure about how to plot the margins, using …
https://scikit-learn.org/stable/auto_examples/svm/plot_separating_hyperplane.html
SVM: Maximum margin separating hyperplane¶. Plot the maximum margin separating hyperplane within a two-class separable dataset using a Support Vector Machine classifier with linear kernel.
https://www.csie.ntu.edu.tw/~cjlin/libsvm/
LIBSVM is an integrated software for support vector classification, (C-SVC, nu-SVC), regression (epsilon-SVR, nu-SVR) and distribution estimation (one-class SVM). It supports multi-class classification. Since version 2.8, it implements an SMO-type algorithm proposed in this paper:
https://scikit-learn.org/stable/auto_examples/svm/plot_linearsvc_support_vectors.html
Plot the support vectors in LinearSVC¶ Unlike SVC (based on LIBSVM), LinearSVC (based on LIBLINEAR) does not provide the support vectors. This example demonstrates how to obtain the support vectors in LinearSVC. import numpy as np import matplotlib.pyplot as plt from sklearn.datasets import make_blobs from sklearn.svm import LinearSVC X, y ...
https://stats.stackexchange.com/questions/104860/plotting-the-decision-boundary-of-a-kernel-svm-rbf
Suppose we are given a training set of 2D points that are linearly non-separable. I train a binary SVM with an RBF kernel in order to classify them. What I want to do is to draw the desicion bounda...
https://stats.stackexchange.com/questions/125238/why-does-the-linear-svm-give-a-lot-of-support-vectors
The amount of support vectors that actually form the model is not that relevant for a linear SVM, except for prediction speed (the above comment applies). The problem here is that e1071 apparently uses LIBSVM instead of LIBLINEAR for linear SVM's. LIBSVM …
https://www.csie.ntu.edu.tw/%7Ecjlin/libsvm/faq.html
obj is the optimal objective value of the dual SVM problem. rho is the bias term in the decision function sgn(w^Tx - rho). nSV and nBSV are number of support vectors and bounded support vectors (i.e., alpha_i = C). nu-svm is a somewhat equivalent form of C-SVM where C is replaced by nu. nu simply shows the corresponding parameter.
https://alivelearn.net/?p=912
Oct 07, 2009 · I am learning svm lately and tried libsvm. It’s a good package. Linear kernel example (support vectors are in circles): Nonlinear example (radial basis) 3-class example Basic procedure to use libsvm: Preprocess your data. This including normalization (make all values between 0 and 1) and transform non-numeric values to numeric. You can use the following […]
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