An oracle-based projection and rescaling algorithm for linear semi-infinite feasibility problems and its application to SDP and SOCP
Abstract: We point out that Chubanovís oracle-based algorithm for linear programming  can be applied almost as it is to linear semi-infinite programming (LSIP). In this note, we describe the details and prove the polynomial complexity of the algorithm based on the real computation model proposed by Blum, Shub and Smale (the BSS model) which is more suitable for floating point computation in modern computers. The adoption of the BBS model makes our description and analysis much simpler than the original one by Chubanov . Then we reformulate semidefinite programming (SDP) and second-order cone programming (SOCP) into LSIP, and apply our algorithm to obtain new complexity results for computing interior feasible solutions of homogeneous SDP and SOCP.
Keywords: Linear semi-infinite programming, Projection and rescaling algorithm, Oracle-based algo- rithm, Semidefinite programming.
Category 1: Linear, Cone and Semidefinite Programming
Category 2: Infinite Dimensional Optimization (Semi-infinite Programming )
Citation: Department of Computer and Network Engineering, The University of Electro-Communications.
Entry Submitted: 09/26/2018
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