@article{JMLR:v6:rousu05a,
  author  = {Juho Rousu and John Shawe-Taylor},
  title   = {Efficient Computation of Gapped Substring Kernels on Large Alphabets},
  journal = {Journal of Machine Learning Research},
  year    = {2005},
  volume  = {6},
  number  = {45},
  pages   = {1323--1344},
  url     = {http://jmlr.org/papers/v6/rousu05a.html}
}