Results 101 to 110 of about 2,956 (213)
Group testing with two defectives
, 1982 Recently the problem of determining the minimax number of group tests for finding two defectives separately contained in two disjoint sets has been completely solved.
Hwang, F.K. +5 more
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Multiple solutions to asymmetric semilinear elliptic problems via Morse theory
Electronic Journal of Differential Equations, 2014 In this article we study the existence of solutions to the problem $$\displylines{ -\Delta u = g(x,u) \quad \text{in } \Omega; \cr u = 0 \quad\text{on } \partial\Omega, }$$ where $\Omega$ is a smooth bounded domain in $\mathbb{R}^N$ $(N\geq 2)$
Leandro L. Recova, Adolfo J. Rumbos
doaj
Minimax robust relay selection based on uncertain long-term CSI
, 2014 Cooperative communications via multiple relay nodes is known to provide the benefits of increase diversity and coverage. Simultaneous transmission via multiple relays, however, requires strong coordination between nodes either in terms of slot-based ...
Nisar, Muhammad Danish +1 more
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Fitting subgroups of profinite completions of soluble minimax groups
Journal of Algebra, 1986 This paper is concerned with the question of how far a group is determined by the class of all of its finite images. It is known that it is rarely determined up to isomorphism but for some classes of groups, there can be only finitely many isomorphism types of groups of that class with the same collection of finite images.
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Suicidal altruism under random assortment [PDF]
, 2008 Questions: Can there be a selective explanation for suicide? Or are all suicides evolutionary mistakes, ever pruned by natural selection to the extent that the tendency to perform them is heritable?
Cabrales, Antonio, Pollock, Gregory B.
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Soluble products of minimax groups, and nearly surjective derivations
Journal of Pure and Applied Algebra, 1988 The author proves that a soluble group \(G=AB\) which is the product of two minimax subgroups \(A\) and \(B\) is a minimax group. (A soluble group is a minimax group if it has a finite series whose factors are cyclic or Prüfer groups.) This solves Problem 9.54 of the Kourouvka Notebook [1986; Zbl 0625.20001]. Some special cases of this result where one
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Minimax Rates for High-dimensional Double Sparse Structure over $\ell_u(\ell_q)$-balls
, 2023 In this paper, we focus on the high-dimensional double sparse structure, where the parameter of interest simultaneously encourages group-wise sparsity and element-wise sparsity in each group.
Li, Zhifan, Zhang, Yanhang, Yin, Jianxin
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On allocating seats to parties and districts: apportionments [PDF]
The paper presents the problem of choosing the representatives in an assembly when the whole electoral region is subdivided into electoral districts. Because of the two dimensions, geographical (districts) and political (parties), the problem is called ...
Gabrielle Demange
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Minimax passband group delay nonlinear phase peak constrained FIR filter design without imposing desired phase response [PDF]
, 2012 In this paper, a nonlinear phase finite impulse response (FIR) filter is designed without imposing a desired phase response. The maximum passband group delay of the filter is minimized subject to a positivity constraint on the passband group delay ...
Ling, B. +3 more
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When do Minimax-fair Learning and Empirical Risk Minimization Coincide?
Minimax-fair machine learning minimizes the error for the worst-off group. However, empirical evidence suggests that when sophisticated models are trained with standard empirical risk minimization (ERM), they often have the same performance on the worst ...
Singh, Harvineet +4 more
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