@article{li2010tuning,
  title={Tuning SVM parameters by using a hybrid CLPSO--BFGS algorithm},
  author={Li, Shutao and Tan, Mingkui},
  journal={Neurocomputing},
  volume={73},
  number={10-12},
  pages={2089--2096},
  year={2010},
  publisher={Elsevier}
}