全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Guillaume Sagnol , Thomas Schlechte
来源:[J].Annals of Operations Research(IF 1.029), 2017, Vol.252 (2), pp.383-406Springer
摘要:We present the problem of planning mobile tours of inspectors on German motorways to enforce the payment of the toll for heavy good trucks. This is a special type of vehicle routing problem with the objective to conduct as good inspections as possible on the complete network. In ...
作者:Guillaume Sagnol , Edouard Pauwels
来源:[J].Statistical Papers(IF 0.683), 2019, Vol.60 (2), pp.215-234Springer
摘要:Abstract(#br)We show that the A -optimal design optimization problem over m design points in $${\mathbb {R}}^n$$ R n is equivalent to minimizing a quadratic function plus a group lasso sparsity inducing term over $$n\times m$$ n × m real matrices. This observation allows to ...
作者:Guillaume Sagnol
来源:[J].Linear Algebra and Its Applications(IF 0.968), 2013, Vol.439 (10), pp.2829-2843Elsevier
摘要:Abstract(#br)We present a new semidefinite representation for the trace of a real function f applied to symmetric matrices, when a semidefinite representation of the convex (or concave) function f is known. Our construction is intuitive, and yields a representation that is m...
作者:Guillaume Sagnol
来源:[J].Discrete Applied Mathematics(IF 0.718), 2013, Vol.161 (1-2), pp.258-276Elsevier
摘要:Abstract(#br)We study a family of combinatorial optimization problems defined by a parameter p ∈ [ 0 , 1 ] , which involves spectral functions applied to positive semidefinite matrices, and has some application in the theory of optimal experimental design. This family of pro...
作者:Guillaume Sagnol
来源:[J].Linear Algebra and Its Applications(IF 0.968), 2011, Vol.435 (6), pp.1446-1463Elsevier
摘要:Abstract(#br)We show that a class of semidefinite programs (SDP) admits a solution that is a positive semidefinite matrix of rank at most r , where r is the rank of the matrix involved in the objective function of the SDP. The optimization problems of this class are semidefinite ...
作者:Guillaume Sagnol
来源:[J].Journal of Statistical Planning and Inference(IF 0.713), 2011, Vol.141 (5), pp.1684-1708Elsevier
摘要:Abstract(#br)Elfving's theorem is a major result in the theory of optimal experimental design, which gives a geometrical characterization of c -optimality . In this paper, we extend this theorem to the case of multiresponse experiments, and we show that when the number of ex...
作者:... Julia Buwaya , Guillaume Sagnol , Elmar Swarat
来源:[J].Networks(IF 0.645), 2015, Vol.65 (4), pp.312-328Wiley
摘要:We introduce the class of spot‐checking games (SC games). These games model problems where the goal is to distribute fare inspectors over a toll network. In an SC game, the pure strategies of network users correspond to paths in a graph, and the pure strategies of the inspec...

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