Titlebook: Combinatorial Optimization and Applications; 15th International C Ding-Zhu Du,Donglei Du,Dachuan Xu Conference proceedings 2021 Springer Na

蚊子

Lecture Notes in Computer Sciencehttp://image.papertrans.cn/c/image/229977.jpg

苦笑

Combinatorial Optimization and Applications978-3-030-92681-6Series ISSN 0302-9743 Series E-ISSN 1611-3349

排出

Smart Cities and Smart Communities big data and has attracted more attention. In this paper, we consider a two-stage submodular maximization problem subject to cardinality and .-matroid constraints, and propose an approximation algorithm with constant approximation ratio depends on the maximum curvature of the submodular functions involved, which generalizes the previous bound.

边缘带来墨水

Two-Stage Submodular Maximization Under Curvature, big data and has attracted more attention. In this paper, we consider a two-stage submodular maximization problem subject to cardinality and .-matroid constraints, and propose an approximation algorithm with constant approximation ratio depends on the maximum curvature of the submodular functions involved, which generalizes the previous bound.

反叛者

https://doi.org/10.1007/978-981-19-1146-0y if there exists a subset of cameras that can completely cover these POIs. Then we propose an LP formulation for the constrained flow problem and prove that any basic solution of the LP formulation is integral, which consequently leads to an optimal solution to Min-Num LTC-CS by solving this LP for

DAMP

Smart Technologies and Aging Societythen obtain the consensus ranking of the scheme and determine the final prevention and control scheme. The proposed method of this paper, on the one hand, can optimize the opinions of the epidemic prevention expert group and form a consensus decision. On the other hand, it can save time and carry ou

Free-Radical

湿润

POLYP

corpus-callosum