Results 11 to 20 of about 779,888 (355)

Stack sorting with restricted stacks [PDF]

open access: yesJournal 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
openaire   +3 more sources

Stack Sorting with Increasing and Decreasing Stacks [PDF]

open access: yesThe 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   +4 more sources

A stack and a pop stack in series [PDF]

open access: yesAustralas. 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
openaire   +3 more sources

Understanding host network stack overheads

open access: yesConference on Applications, Technologies, Architectures, and Protocols for Computer Communication, 2021
Traditional end-host network stacks are struggling to keep up with rapidly increasing datacenter access link bandwidths due to their unsustainable CPU overheads.
Qizhe Cai   +4 more
semanticscholar   +1 more source

Gemmini: Enabling Systematic Deep-Learning Architecture Evaluation via Full-Stack Integration [PDF]

open access: yesDesign Automation Conference, 2019
DNN accelerators are often developed and evaluated in isolation without considering the cross-stack, system-level effects in real-world environments.
Hasan Genç   +18 more
semanticscholar   +1 more source

Reverse Electrodialysis: Co- and Counterflow Optimization of Multistage Configurations for Maximum Energy Efficiency

open access: yesMembranes, 2020
Reverse electrodialysis (RED) is one of the techniques able to harvest energy from the salinity gradient between different salt solutions. There is a tradeoff between efficiency and generated power in a RED stack. This paper focuses on efficiency.
Joost Veerman
doaj   +1 more source

A Stack-Propagation Framework with Token-Level Intent Detection for Spoken Language Understanding [PDF]

open access: yesConference on Empirical Methods in Natural Language Processing, 2019
Intent detection and slot filling are two main tasks for building a spoken language understanding (SLU) system. The two tasks are closely tied and the slots often highly depend on the intent.
Libo Qin   +4 more
semanticscholar   +1 more source

Two-stack-sorting with pop stacks [PDF]

open access: yesAustralas. J Comb., 2018
We consider the set of permutations that are sorted after two passes through a pop stack. We characterize these permutations in terms of forbidden patterns (classical and barred) and enumerate them according to the ascent statistic. Then we show these permutations to be in bijection with a special family of polyominoes.
Lara Pudwell, Rebecca Smith 0001
openaire   +3 more sources

Stack

open access: yes, 2023
stack ...
Zibo Liang (17413581)
core   +1 more source

Design and Optimization of a Standing-Wave Thermoacoustic Refrigerator Using DELTAEC

open access: yesDiyala Journal of Engineering Sciences, 2023
Thermoacoustic refrigeration is one of the best alternatives to conventional refrigeration systems due to the use of inert gases such as helium or air.
Mohanad Q. Kamil   +2 more
doaj   +1 more source

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