Which machine learning algorithms (besides SVM's) use the principle of structural risk minimization?
The structural risk minimization principle is a principle that is at least partly 'used' in all machine learning methods, since overfitting is often to be taken into account: reducing the complexity of the model is (supposedly and in practice) a good way to limit overfitting.
SVMs explicitly have a parameter for the complexity (the dimension of the feature space, or even the kernel function) and it's necessary because increasing the complexity is a part of the learning algorithm.
Neuronal networks also have a easy indicator of their complexity (number of 'cells') and is part of the associated learning algorithm.
Without this principle grammar inference would be both stupid and perfect grammar is the list of all possible words, so every non-trivial algorithm at least acknowledges this principle.
Decision trees have their own notion of entropy.
To be perfectly honest I don't really know about what happens in genetic programming but they don't have an intrinsic notion of complexity.
I don't know well Inductive logic programming but it doesn't seem to scale very well to this principle.