Results 21 to 30 of about 1,085,519 (269)

Average Rate Analysis of Cooperative NOMA Aided Underwater Optical Wireless Systems

open access: yesIEEE Open Journal of the Communications Society, 2021
In this paper, we consider a cooperative non-orthogonal multiple access (NOMA) aided underwater optical wireless system in which the source transmits to two users where the near user serves as a relay node to the far user. Our proposed system consists of
Kapila W. S. Palitharathna   +4 more
doaj   +1 more source

Treewidth Lower Bounds with Brambles [PDF]

open access: yesAlgorithmica, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hans L. Bodlaender   +2 more
openaire   +5 more sources

A Lower Bound for Scheduling Mechanisms [PDF]

open access: yesAlgorithmica, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
George Christodoulou 0001   +2 more
openaire   +7 more sources

Projection Uniformity of Asymmetric Fractional Factorials

open access: yesAxioms, 2022
The objective of this paper is to study the issue of the projection uniformity of asymmetric fractional factorials. On the basis of level permutation and mixture discrepancy, the average projection mixture discrepancy to measure the uniformity for low ...
Kang Wang, Zujun Ou, Hong Qin, Na Zou
doaj   +1 more source

A Column Generation-Based Lower Bound for the Minimum Sum Coloring Problem

open access: yesIEEE Access, 2020
The objective of this paper is to derive a tight and efficient lower bound for the minimum sum coloring problem. This NP-hard problem is a variant of the classical graph coloring problem where the objective is to minimize the sum of the colors.
Mehdi Mrad   +3 more
doaj   +1 more source

Distance Lower Bounding [PDF]

open access: yes, 2015
Distance upper-bounding DUB allows a verifier to know whether a proving party is located within a certain distance bound. DUB protocols have many applications in secure authentication and location based services. We consider the dual problem of distance lower bounding DLB, where the prover proves it is outside a distance bound to the verifier.
Xifan Zheng   +2 more
openaire   +2 more sources

Maximum common subgraph: some upper bound and lower bound results

open access: yesBMC Bioinformatics, 2006
Background Structure matching plays an important part in understanding the functional role of biological structures. Bioinformatics assists in this effort by reformulating this process into a problem of finding a maximum common subgraph between graphical
Jennings Steven F   +2 more
doaj   +1 more source

Construction of Dual Optimal Bidirectional Double-Loop Networks for Optimal Routing

open access: yesMathematics, 2022
Bidirectional double-loop networks (BDLNs) are widely used in computer networks for their simplicity, symmetry and scalability. One common way to improve their performance is to decrease the diameter and average distance.
Hui Liu, Xiaowan Li, Shenling Wang
doaj   +1 more source

On the lower bound of Spearman’s footrule

open access: yesDependence Modeling, 2019
Úbeda-Flores showed that the range of multivariate Spearman’s footrule for copulas of dimension d ≥ 2 is contained in the interval [−1/d, 1], that the upper bound is attained exclusively by the upper Fréchet-Hoeffding bound, and that the lower bound is ...
Fuchs Sebastian, McCord Yann
doaj   +1 more source

TURBO: The Swiss Knife of Auto-Encoders

open access: yesEntropy, 2023
We present a novel information-theoretic framework, termed as TURBO, designed to systematically analyse and generalise auto-encoding methods. We start by examining the principles of information bottleneck and bottleneck-based networks in the auto ...
Guillaume Quétant   +3 more
doaj   +1 more source

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