Beijing Institute for Scientific and Engineering Computing, Beijing University of Technology, Beijing 100124. China
School of Mathematical Sciences, University of Chinese Academy Sciences, Beijing 100049, China
Beijing Jinghang Research Institute of Computing and Communication, Beijing 100074, China
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Abstract
In this work, we study a -Cardinality Constrained Regularized Submodular Maximization (-CCRSM) problem, in which the objective utility is expressed as the difference between a non-negative submodular and a modular function. No multiplicative approximation algorithm exists for the regularized model, and most works have focused on designing weak approximation algorithms for this problem. In this study, we consider the -CCRSM problem in a streaming fashion, wherein the elements are assumed to be visited individually and cannot be entirely stored in memory. We propose two multipass streaming algorithms with theoretical guarantees for the above problem, wherein submodular terms are monotonic and nonmonotonic.
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