摘要

In this paper we propose a primal-dual path-following interior-point algorithm for second-order cone optimization. The algorithm is based on a new technique for finding the search directions and the strategy of the central path. At each iteration, we use only full Nesterov-Todd step. Moreover, we derive the currently best known iteration bound for the algorithm with small-update method, namely, O(root N log N/epsilon), where N denotes the number of second-order cones in the problem formulation and epsilon the desired accuracy.