What are the ways to achieve good accuracy in support vector machine ? (MATLAB)

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sufian ahmed 2017-9-2

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https://ww2.mathworks.cn/matlabcentral/answers/354977-what-are-the-ways-to-achieve-good-accuracy-in-support-vector-machine-matlab

评论： John D'Errico 2017-9-2

Recently I works on depth values of an image. Basically those images are stairs [up & down].I draw a vertical line upon those images and take the 1D feature based on vertical line coordinates.But When i use them in SVM I did not get good accuracy. When i tuning parameter[c,gamma] it sometimes yields good.But problem is that after changing train / test set again needs tuning.Sometimes gets better or sometimes not.Main point is i did not get a consistent result.In this case what procedures i need to follow to get good accuracy.Any suggestion/advise will be appreciated greatly.