Results 11 to 20 of about 185,787 (267)
Stack sorting with restricted stacks [PDF]
Journal of Combinatorial Theory, Series A, 2020 The (classical) problem of characterizing and enumerating permutations that can be sorted using two stacks connected in series is still largely open. In the present paper we address a related problem, in which we impose restrictions both on the procedure and on the stacks.
Giulio Cerbai +2 more
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Stack Sorting with Increasing and Decreasing Stacks [PDF]
The Electronic Journal of Combinatorics, 2020 We introduce a sorting machine consisting of $k+1$ stacks in series: the first $k$ stacks can only contain elements in decreasing order from top to bottom, while the last one has the opposite restriction. This device generalizes the $\mathfrak{DI}$ machine introduced by Rebecca Smith, which studies the case $k=1$.
Cerbai, G, Cioni, L, Ferrari, L
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Stack-sorting with consecutive-pattern-avoiding stacks [PDF]
Advances in Applied Mathematics, 2021 We introduce consecutive-pattern-avoiding stack-sorting maps $\text{SC}_σ$, which are natural generalizations of West's stack-sorting map $s$ and natural analogues of the classical-pattern-avoiding stack-sorting maps $s_σ$ recently introduced by Cerbai, Claesson, and Ferrari.
Colin Defant, Kai Zheng
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GA-stacking: Evolutionary stacked generalization [PDF]
Intelligent Data Analysis, 2010 Stacking is a widely used technique for combining classifiers and improving prediction accuracy. Early research in Stacking showed that selecting the right classifiers, their parameters and the meta-classifiers was a critical issue. Most of the research on this topic hand picks the right combination of classifiers and their parameters.
Agapito Ledezma +3 more
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A stack and a pop stack in series
Australas. J Comb., 2013 We study sorting machines consisting of a stack and a pop stack in series, with or without a queue between them. While there are, a priori, four such machines, only two are essentially different: a pop stack followed directly by a stack, and a pop stack followed by a queue and then by a stack.
Rebecca Smith 0001, Vincent Vatter
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Energies, 2022 Incineration plants using solid refused fuel (SRF) should control their air pollution materials to minimize environmental impact. This study evaluated the emission of polychlorinated dibenzo-p-dioxin/dibenzofurans (PCDD/DFs) congener patterns in seven ...
Jun-Ik Son +6 more
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Methods of Information in Medicine, 2016 Citation: Sabine Koch, Christoph U. Lehmann, Reinhold Haux. On Bridges and Stacks.
Sabine Koch +2 more
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The Urban Stack. A Topology for Urban Data Infrastructures
Tecnoscienza, 2018 In this article, I develop the concept of the “urban stack“ to elucidate how urban data infrastructures gain legitimacy and produce value in capitalist cities.
Aaron Shapiro
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Литьë и металлургия, 2021 The article reports on the new technology and equipment of vertical‑stack molding (VSM), created by OJSC “BELNIILIT” for the manufacture of vertical‑stack molds.
V. V. Fonov +2 more
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Machine Learning, 1996 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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