Results 11 to 20 of about 195,724 (266)

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, Anders Claesson, Luca Ferrari 0001   +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
openaire   +6 more sources

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
openaire   +3 more sources

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, Ricardo Aler, Araceli Sanchis, Daniel Borrajo   +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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On Bridges and Stacks [PDF]

Methods of Information in Medicine, 2016
Citation: Sabine Koch, Christoph U. Lehmann, Reinhold Haux. On Bridges and Stacks.
Sabine Koch, Christoph U. Lehmann, Reinhold Haux   +2 more
openaire   +4 more sources

Adjectives in Heritage Spanish

Isogloss, 2021
Ordering of predicative adjectives within the Noun Phrase varies cross linguistically in systematic ways (Cinque 2010). In Spanish adjectival ordering exhibits more flexibility than in English.
Liliana Sánchez, José Camacho
doaj   +3 more sources

Experimental and Numerical Analysis of Woven Bamboo and Jute Fiber Reinforced in Epoxy Composites [PDF]

Mechanics of Advanced Composite Structures
Aerospace, transportation, marine, and space applications demand structural materials with low densities yet strong, hard, and high impact strength. Composites are materials that satisfy the needs of recent technology.
Radhakrishna Kumshikar, R. Shankara Reddy   +1 more
doaj   +1 more source

Stacked Regressions [PDF]

Machine Learning, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Stratifying Quotient Stacks and Moduli Stacks [PDF]

, 2018
Recent results in geometric invariant theory (GIT) for non-reductive linear algebraic group actions allow us to stratify quotient stacks of the form [X/H], where X is a projective scheme and H is a linear algebraic group with internally graded unipotent radical acting linearly on X, in such a way that each stratum [S/H] has a geometric quotient S/H ...
Berczi, G, Hoskins, V, Kirwan, F
openaire   +3 more sources