Results 11 to 20 of about 2,364,878 (144)

Cutting plane methods for general integer programming [PDF]

open access: yes, 1993
Integer programming (IP) problems are difficult to solve due to the integer restrictions imposed on them. A technique for solving these problems is the cutting plane method.
Mitra, G   +5 more
core   +6 more sources

Nearly perfect Gaussian integer sequences with arbitrary degree [PDF]

open access: yesIET Communications, 2018
Based on p ‐ary pseudorandom sequences, this study proposes a construction of degree‐ k Gaussian integer sequences of period by utilising k th power residue symbol ...
Yubo Li 0002, Liying Tian, Tao Liu 0034
openaire   +2 more sources

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

open access: yesIET Networks, EarlyView., 2023
We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh   +4 more
wiley   +1 more source

Optical trapping with a perfect vortex beam [PDF]

open access: yes, 2014
The authors would like to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for funding.Vortex beams with different topological charge usually have different profiles and radii of peak intensity.
Arita, Yoshihiko   +9 more
core   +1 more source

Construction of Period $qp$ PGISs With Degrees Equal to or Larger Than Four

open access: yesIEEE Access, 2018
The degree of a perfect Gaussian integer sequence (PGIS) is defined as the number of distinct nonzero Gaussian integers within one period of the sequence. This paper focuses on constructing PGISs with degrees equal to or larger than four and period of N =
Ho-Hsuan Chang   +2 more
doaj   +1 more source

Perfect posterior simulation for mixture and hidden Markov models [PDF]

open access: yes, 2010
In this paper we present an application of the read-once coupling from the past algorithm to problems in Bayesian inference for latent statistical models.
Berthelsen, Kasper Klitgaard   +6 more
core   +1 more source

ON THE INFERIOR AND SUPERIOR k-TH POWER PART OF A POSITIVE INTEGER AND DIVISOR FUNCTION [PDF]

open access: yes, 2000
For any positive integer n, let a{n) and b{n) denote the inferior and superior k-th power part of n ...
ZHENG, JIANFENG
core   +1 more source

Transformation of propositional calculus statements into integer and mixed integer programs: An approach towards automatic reformulation [PDF]

open access: yes, 1990
A systematic procedure for transforming a set of logical statements or logical conditions imposed on a model into an Integer Linear Progamming (ILP) formulation Mixed Integer Programming (MIP) formulation is presented. An ILP stated as a system of linear
Hadjiconstantinou, E
core   +6 more sources

Integrality and the Laurent phenomenon for Somos 4 and Somos 5 sequences [PDF]

open access: yes, 2008
Somos 4 sequences are a family of sequences defined by a fourth-order quadratic recurrence relation with constant coefficients. For particular choices of the coefficients and the four initial data, such recurrences can yield sequences of integers.
Swart, Christine, Hone, Andrew N.W.
core   +1 more source

Construction of zero correlation zone Gaussian integer sequence set

open access: yesTongxin xuebao, 2017
The construction of zero correlation zone (ZCZ) Gaussian integer sequence set was researched.Based on binary orthogonal matrices,ZCZ ternary sequence sets were constructed by adding zeros at first.Then the ternary ZCZ squences were transformed into ...
Yu-bo LI, Jia-an SUN, Nan JING
doaj   +2 more sources

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