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检索条件"主题词=Submodular function maximization"
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Simultaneous Approximation of Multi-criteria submodular function maximization
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Journal of the Operations Research Society of China 2014年 第3期2卷 271-290页
作者: Dong-Lei Du Yu Li Nai-Hua Xiu Da-Chuan Xu Faculty of Business Administration University of New BrunswickFrederictonNB E3B 9Y2Canada Department of Mathematics School of ScienceBeijing Jiaotong University3 ShangyuancunHaidian DistrictBeijing 100044China Department of Applied Mathematics Beijing University of Technology100 PingleyuanChaoyang DistrictBeijing 100124China
Recently intensive interest has been raised on approximation of the NPhard submodular maximization problem due to their theoretical and practical *** this work,we extend this line of research by focusing on the simult... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Optimizing top-k retrieval:submodularity analysis and search strategies
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Frontiers of Computer Science 2016年 第3期10卷 477-487页
作者: Chaofeng SHA Keqiang WANG Dell ZHANG Xiaoling WANG Aoying ZHOU School of Computer Science Shanghai Key Laboratory of Intelligent Information ProcessingFudan University Shanghai Key Laboratory of Trustworthy Computing East China Normal University Department of Computer Science and Information Systems BirkbeckUniversity of London
The key issue in top-fc retrieval,finding a set of fc documents(from a large document collection) that can best answer a user's query,is to strike the optimal balance between relevance and *** this paper,we study the ... 详细信息
来源: 同方期刊数据库 同方期刊数据库 评论