[3] viXra:1410.0193 [pdf] submitted on 2014-10-29 16:10:28
Authors: Manar Jammal, Ali Kanso, Abdallah Shami
Comments: 7 Pages.
Cloud computing is continuously growing as a
business model for hosting information and communication technology
applications. Although on-demand resource consumption
and faster deployment time make this model appealing for
the enterprise, other concerns arise regarding the quality of
service offered by the cloud. One major concern is the high
availability of applications hosted in the cloud. This paper
demonstrates the tremendous effect that the placement strategy
for virtual machines hosting applications has on the high
availability of the services provided by these applications. In
addition, a novel scheduling technique is presented that takes
into consideration the interdependencies between applications
components and other constraints such as communication delay
tolerance and resource utilization. The problem is formulated
as a linear programming multi-constraint optimization model.
The evaluation results demonstrate that the proposed solution
improves the availability of the scheduled components compared
to OpenStack Nova scheduler.
Category: Data Structures and Algorithms
[2] viXra:1410.0134 [pdf] submitted on 2014-10-22 17:29:34
Authors: A. A. Salama, Mohamed Abdelfattah, Mohamed Eisa
Comments: 6 Pages. Since the world is full of indeterminacy, the neutrosophics found their place into contemporary research. İn this paper we, introduce the distances between neutrosophic sets: the Hamming distance, The normalized Hamming distance, the Euclidean distance an
Since the world is full of indeterminacy, the neutrosophics found their place into contemporary research. İn this paper we, introduce the distances between neutrosophic sets: the Hamming distance, The normalized Hamming distance, the Euclidean distance and normalized Euclidean distance. We will extend the concepts of distances to the case of neutrosophic hesitancy degree. Added to, this paper suggest how to enrich intuitionistic fuzzy querying by the use of neutrosophic values..
Category: Data Structures and Algorithms
[1] viXra:1410.0122 [pdf] replaced on 2014-11-04 01:53:29
Authors: Laszlo B. Kish, Zoltan Gingl, Robert Mingesz, Gergely Vadai, Janusz Smulko, Claes-Goran Granqvist
Comments: 9 Pages. Accepted for Publication in Fluctuation and Noise Letters (November 3, 2014)
A recent paper by Gunn–Allison–Abbott (GAA) [L.J. Gunn et al., Scientific Reports 4 (2014) 6461] argued that the Kirchhoff-law–Johnson-noise (KLJN) secure key exchange system could experience a severe information leak. Here we refute their results and demonstrate that GAA’s arguments ensue from a serious design flaw in their system. Specifically, an attenuator broke the single Kirchhoff-loop into two coupled loops, which is an incorrect operation since the single loop is essential for the security in the KLJN system, and hence GAA’s asserted information leak is trivial. Another consequence is that a fully defended KLJN system would not be able to function due to its built-in current-comparison defense against active (invasive) attacks. In this paper we crack GAA’s scheme via an elementary current comparison attack which yields negligible error probability for Eve even without averaging over the correlation time of the noise.
Category: Data Structures and Algorithms