Lu, C.-L., and T.-C. Lin. “Improved SVM Classifier Incorporating Adaptive Condensed Instances Based on Hybrid Continuous-Discrete Particle Swarm Optimization”. Advances in Technology Innovation, Vol. 1, no. 2, Sept. 2016, pp. 53-57, https://ojs.imeti.org/index.php/AITI/article/view/345.