Results 41 to 50 of about 19,253,437 (241)

Classification of index partitions to boost XML query performance [PDF]

open access: yes, 2010
XML query optimization continues to occupy considerable research effort due to the increasing usage of XML data. Despite many innovations over recent years, XML databases struggle to compete with more traditional database systems. Rather than using node
Marks, Gerard, Roantree, Mark
core   +1 more source

Noise resistant generalized parametric validity index of clustering for gene expression data [PDF]

open access: yes, 2014
This article has been made available through the Brunel Open Access Publishing Fund.Validity indices have been investigated for decades. However, since there is no study of noise-resistance performance of these indices in the literature, there is no ...
Fa, R, Nandi, AK
core   +1 more source

On the development of a soccer player performance rating system for the English premier league [PDF]

open access: yes, 2012
The EA Sports Player Performance Index is a rating system for soccer players used in the top two tiers of soccer in England—the Premier League and the Championship.
Folker, DE, McHale, IG, Scarf, PA
core   +1 more source

Efficient shell and helically coiled tube heat exchanger using carbon nanotube-water nanofluid [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2019
Diameter and shape of tube, coil pitch and curvature ratio using 0.2% MWCNT-water nanofluid and 0.2-1% SWCNTwater nanofluid, affect the inner Nu and pressure drop in a shell and helically coiled tube heat exchanger, when numerically investigated.
Arjun Kozhikkatil Sunil, Rakesh Kumar
doaj   +1 more source

A New Stiffness Performance Index: Volumetric Isotropy Index [PDF]

open access: yesMachines, 2019
A new index for a precise calculation of a manipulator’s stiffness isotropy is introduced. The proposed index is compared with the conventionally used stiffness isotropy index by making use of the investigation on R-CUBE manipulator. The proposed index is shown to produce relatively more precise results from which a higher number of isotropic poses are
İbrahimcan Görgülü   +1 more
openaire   +4 more sources

Application of the Ring Theory in the Segmentation of Digital Images [PDF]

open access: yes, 2014
Ring theory is one of the branches of the abstract algebra that has been broadly used in images. However, ring theory has not been very related with image segmentation.
Garcés, Yasel   +3 more
core   +1 more source

Maximum Likelihood Decoder for Index Coded PSK Modulation for Priority Ordered Receivers

open access: yes, 2017
Index coded PSK modulation over an AWGN broadcast channel, for a given index coding problem (ICP) is studied. For a chosen index code and an arbitrary mapping (of broadcast vectors to PSK signal points), we have derived a decision rule for the maximum ...
Rajan, B. Sundar, S., Divya U.
core   +1 more source

Measuring the relative importance of the logistics performance index indicators using Best Worst Method

open access: yesTransport Policy, 2018
Globalization has led to an increased need for international freight transportation and, with it, international logistics. To measure the performance of countries in terms of logistics, in 2007 the World Bank created the Logistics Performance Index (LPI),
J. Rezaei, W. S. V. Roekel, L. Tavasszy
semanticscholar   +1 more source

Unexpected relationships between δ13C and wine grape performance in organic farming

open access: yesOENO One, 2013
Aim: To evaluate the relationship between carbon isotope ratio (δ13C) and wine grape viticultural and oenological performance in organic farming. Methods and results: The study was carried out for four years in the Chianti Classico wine production ...
Edoardo Antonio Costantino Costantini   +11 more
doaj   +1 more source

Multidimensional Index Modulation in Wireless Communications

open access: yes, 2017
In index modulation schemes, information bits are conveyed through indexing of transmission entities such as antennas, subcarriers, times slots, precoders, subarrays, and radio frequency (RF) mirrors.
Bhat, Sandeep   +3 more
core   +1 more source

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