@article{passerini06kernelsprooftrees,
        title = {Kernels on Prolog Proof Trees: Statistical Learning in the {ILP} Setting},
        author = {Luc De Raedt and Andrea Passerini},
        journal = {Journal of Machine Learning Research},
        number = {Feb},
        pages = {307--342},
        volume = 7,
        year = 2006,
        biburl = {http://www.bibsonomy.org/bibtex/28dbc859701df8f35b5dabfe766037cc1/stefano},
	keywords = {ilp kernels learning machine}
}