stract to be announcedPlenary session 09:00-10:00 Panos M, Pardalos, University of Florida, USA Tea Break 10:00-10:20 At the 1st floor 10:20-10:45 Polynomial Approximation Schemes for the Max-Min Allocation Problem Jianping Li, Weidong Li, Jianbo Li 10:45-11:10 Linear-Time Algorithm for Computing the Most Reliable Source on a Tree Wei Ding, Guoliang Xue 11:10-11:35 A 5/3-Approximation Algorithm for Joint Replenishment with Deadlines Tim Nonner, Alexander Souza Session A1 Algorithms for Network Design 11:35-12:00 A PTAS for Node-Weighted Steiner Tree in Unit Disk Graphs Xianyue Li, Xiaohua Xu, Feng Zou,Hongwei Du, Pengjun Wan, Yuexuan Wang, Weili Wu 10:20-10:45 On Open Rectangle-of-Influence Drawings of Planar Graphs Huaming Zhang, Milind Vaidya 10:45-11:10 An Effective Hybrid Algorithm for the Circles and Spheres Packing Problems Liu Jingfa, Yonglei Yao, Yu Zheng, Huantong Geng, Guocheng Zhou 11:10-11:35 Variable-Size Rectangle Covering Francis Y.L. Chin, Hing-Fung Ting, Yong Zhang Ses...