Max-margin Multiple-Instance Learning via Semidefinite Programming

In this paper, we present a novel semidefinite programming approach for multiple-instance learning. We first formulate the multipleinstance learning as a combinatorial maximum margin optimization problem with additional instance selection constraints within the framework of support vector machines. Although solving this primal problem requires non-convex programming, we nevertheless can then derive an equivalent dual formulation that can be relaxed into a novel convex semidefinite programming (SDP). The relaxed SDP has O(T) free parameters where T is the number of instances, and can be solved using a standard interior-point method. Empirical study shows promising performance of the proposed SDP in comparison with the support vector machine approaches with heuristic optimization procedures.

• Type: Conference
• Year: 2009
• Where: ACML
• Authors: Yuhong Guo
• Keywords: ACML 2009, Machine Learning, Semidefinite Programming, Semidefinite Programming Approach, Support Vector Machine