Results 31 to 40 of about 6,618,541 (298)

An upper and lower bound of the Medication Possession Ratio. [PDF]

open access: yesPatient Prefer Adherence, 2017
Christian M Sperber, Suren R Samarasinghe, Grace P Lomax Patient Connect Limited, Guildford, UK Background: The Medication Possession Ratio (MPR) is a ubiquitous and central measurement for adherence in the health care industry.
Sperber CM, Samarasinghe SR, Lomax GP.
europepmc   +2 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 lower bound on opaque sets [PDF]

open access: yesComputational Geometry, 2019
13 pages, 10 ...
Akitoshi Kawamura   +3 more
openaire   +7 more sources

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

Setting lower bounds on truthfulness [PDF]

open access: yesGames and Economic Behavior, 2018
We present and discuss general techniques for proving inapproximability results for truthful mechanisms. We make use of these techniques to prove lower bounds on the approximability of several non-utilitarian multi-parameter problems. In particular, we demonstrate the strength of our techniques by exhibiting a lower bound of $2-\frac{1}{m}$ for the ...
Ahuva Mu'alem, Michael Schapira
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

Lower bounds on kernelization

open access: yesDiscrete Optimization, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Neeldhara Misra   +2 more
openaire   +3 more sources

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   +3 more sources

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

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