[1] Yongjie Li, Dezhong Yao. Ant Colony System for the Beam Angle Optimization Problem in Radiotherapy Planning, Chapter in "Systems Engineering using Swarm Particle Optimisation", N. Nedjah, L. M. Mourelle (Eds.), Nova Science Publishers, NY, ISBN: 1-60021-119-4, 2006, p31-54[2] Yongjie Li, Jonathan Yao and Dezhong Yao, Genetic algorithm based deliverable segments optimization for static intensity-modulated radiotherapy. Physics in Medicine and Biology, 2003, Vol.48(20), p3353-3374 [3] Yongjie Li, Jonathan Yao, Dezhong Yao. Automatic beam angles selection in IMRT planning using genetic algorithm. Physics in Medicine and Biology, 2004, 49(10), p1915-1932[4] Yongjie Li, Dezhong Yao, Jonathan Yao, Wufan Chen. A particle swarm optimization algorithm for beam angle selection in intensity-modulated radiotherapy planning. Phys. Med. Biol. 2005, 50 (15), p3491-3514[5] Yongjie Li, Dezhong Yao, Jonathan Yao. Optimization of Beam Angles in IMRT Using Ant Colony Optimization Algorithm. International Journal of Radiation Oncology, Biology, Physics, 2005, Vol.63, Supplement 1. pp.S492-S493[6] Yongjie Li, Jonathan Yao and Dezhong Yao, Direct optimization of segments for intensity-modulated radiotherapy. Medical Physics, 2002, 29(6), p1259-1260[7] Yongjie Li, Jonathan Yao and Dezhong Yao, Problem-dependent simulated annealing for inverse treatment planning. Medical Physics, 2002, 29(6), p1259[8] Yongjie Li, Dezhong Yao. Accelerating the Radiotherapy Planning with a Hybrid Method of Genetic Algorithm and Ant Colony System, 2006, LNCS-II, 4222, p340-349[9] Yongjie Li, Dezhong Yao. Expert knowledge guided genetic algorithm for beam angle optimization problem in intensity-modulated radiotherapy planning. 2006, Lecture Notes in Control and Information Science (LNCIS) 345, pp. p834- 839 [10] Yongjie Li, Dezhong Yao, Optimizing the MLC apertures for conformal radiotherapy with a hybrid algorithm, Medical Physics. 2006, 33(6), p2126-2127 [11]Yongjie Li, Dezhong Yao, Accelerating the Radiotherapy Planning with a Hybrid Method of Genetic Algorithm and Ant Colony System, ICNC'06-FSKD'06, LNCS-II, 4222, p340-349[12]Yongjie Li, Dezhong Yao, Jiancheng Zheng, Jonathan Yao. A modified genetic algorithm for the beam angle optimization problem in intensity-modulated radiotherapy planning. Lecture Notes in Computer Science (LNCS), 3871, pp.97-106, 2006[13]Yongjie Li, Jonathan Yao and Dezhong Yao, Genetic algorithm based automatic beam angles selection in IMRT, Medical Physics. 2003, Vol.30(6), p1373[14]Yongjie Li, Jonathan Yao and Dezhong Yao, Aperture based optimization for static IMRT using genetic algorithm, Medical Physics. 2003, Vol.30(6), p1372[15]Yongjie Li, Jonathan Yao and Dezhong Yao, Automatic beam angles selection for IMRT planning with orientation constraints (abstract), Medical Physics. 2004, Vol.31(6), p1865-1866[16]Yongjie Li, Weifu Xie, Dezhong Yao. A Preliminary Study of Automatic Delineation of Eyes on CT Images using Ant Colony Optimization, Journal of Electronic Science and Technology of China, 2007, 5(1), p66-69[17]Xinyu Du, Yongjie Li, Wufan Chen, Yi Zhang, Dezhong Yao, A Markov Random Field based Hybrid Algorithm with Simulated Annealing and Genetic Algorithm for Image Segmentation, ICNC'06-FSKD'06, LNCS, 4221, p706-715[18]Xinyu Du, Yongjie Li, Dezhong Yao, An Adaptive Algorithm for Image Denoising Based on Fuzzy Gibbs Random Fields, ICCCAS’06, p467-471[19]Lei Jie, Yongjie Li*, A DNA Genetic Algorithm for Beam Angle Selection in Radiotherapy Planning, Proceeding of IEEE International Conference on Cybernetics and Intelligent Systems(CIS), 2008, p1331-1336[20]Li Long, Yongjie Li*, Contour Detection Based On the Property of Orientation Selective Inhibition of Nonclassical Receptive Field, Proceeding of IEEE International Conference on Cybernetics and Intelligent Systems(CIS), 2008, p1002-1006[21]Pei Jiang, Yongjie Li*, A Hybrid Face Recognition Algorithm Based on WT, NMFs and SVM, Proceeding of IEEE International Conference on Cybernetics and Intelligent Systems(CIS) , 2008, p734-737[22]XiaoYi Song, Yongjie Li*, Wufan Chen, A Textural Feature-Based Image Retrieval Algorithm, Proceeding of IEEE International Conference on Natural Computation (ICNC), 2008, Vol.4, p71-75[23]Xinyu Du, Yongjie Li, Dezhong Yao, A Support Vector Machine Based Algorithm for Magnetic Resonance Image Segmentation, Proceeding of IEEE International Conference on Natural Computation (ICNC), 2008, Vol.3, p49-53