Results 21 to 30 of about 4,718,106 (270)

Research on the Influence of Sampling Methods for the Accuracy of Web Services QoS Prediction

IEEE Access, 2019
In recent years, as the number of Web services, increases dramatically, the personalized Web service recommendation has become a hot topic in both academia and industry.
Jun Li, Jian Lin
doaj   +1 more source

A hardware prototype of wideband high‐dynamic range analog‐to‐digital converter

IET Circuits, Devices and Systems, 2023
Key parameters of analog‐to‐digital converters (ADCs) are their sampling rate and dynamic range. Power consumption and cost of an ADC are directly proportional to the sampling rate; hence, it is desirable to keep it as low as possible.
Satish Mulleti, Eliya Reznitskiy, Shlomi Savariego, Moshe Namer, Nimrod Glazer, Yonina C. Eldar   +5 more
doaj   +1 more source

Sampling plan and methodological aspects: a household healthcare survey in Piauí

Revista de Saúde Pública, 2021
OBJECTIVE To describe the methodological aspects of the Piauí home healthcare survey (ISAD-PI) and assess the relation between sampling plan, precision, and design effects, assuming that population health surveys are relevant instruments for health ...
Lays Arnaud Rosal Lopes Rodrigues, Danilla Michelle Costa e Silva, Edina Araújo Rodrigues Oliveira, Layanne Cristina de Carvalho Lavôr, Rosana Rodrigues de Sousa, Rumão Batista Nunes de Carvalho, Gilvo de Farias Junior, Laura Maria Feitosa Formiga, Artemizia Francisca de Sousa, Maria Regina Alves Cardoso, Betzabeth Slater, Wolney Lisbôa Conde, Adriana de Azevedo Paiva, Karoline de Macêdo Gonçalves Frota   +13 more
doaj   +2 more sources

Intelligent sampling for the measurement of structured surfaces [PDF]

, 2012
Uniform sampling in metrology has known drawbacks such as coherent spectral aliasing and a lack of efficiency in terms of measuring time and data storage.
, , , Barker R M, Blunt L, J Wang, L A Blunt, Leach R, Li M, P J Scott, Petkovski M Bogdanova S Bogdanov M, Pharr M, R K Leach, Remondino F, Stout K J, The MathWorks, Thompson S K, Verma R, Wang J, Whitehouse D J, X Jiang, Zhang X   +21 more
core   +1 more source

COVID-19: Test, Test and Test

Medical Sciences, 2020
A new virus was identified in late December 2019 when China reported the first cases of pneumonia in Wuhan, and a global COVID-19 pandemic followed. The world was not late to respond, with a number of sweeping measures ranging from social distancing ...
Fatima A Saleh, Aleen Sleem
doaj   +1 more source

Roving Divers Surveying Fish in Fixed Areas Capture Similar Patterns in Biogeography but Different Estimates of Density When Compared With Belt Transects

Frontiers in Marine Science, 2020
Fish abundance and diversity are core measurements taken by many nearshore marine monitoring projects. The most common approaches for counting fish include belt transects and timed counts by roving divers, each with its own limitations.
A. Rassweiler, A. K. Dubel, G. Hernan, D. J. Kushner, J. E. Caselle, J. L. Sprague, L. Kui, T. Lamy, S. E. Lester, R. J. Miller   +9 more
doaj   +1 more source

Elaborating Transition Interface Sampling Methods

, 2004
We review two recently developed efficient methods for calculating rate constants of processes dominated by rare events in high-dimensional complex systems.
Allen, Andersen, Anderson, Anderson, Bennett, Berg, Bergsma, Berne, Bolhuis, Bolhuis, Bolhuis, Bolhuis, Car, Carter, Chandler, Chandler, Ciccotti, Ciccotti, Csajka, de Pablo, Dellago, Dellago, Dellago, Dellago, Duane, Ensing, Frenkel, Frenkel, Geissler, Hoover, Hummer, Keck, Leach, Martyna, Moroni, Nosé, Nosé, Peter G. Bolhuis, Rosenbluth, Ruiz-Montero, Shimomur, Siepmann, Sprik, Sprik, Swope, Titus S. van Erp, Torrie, van Erp, van Erp, Vlugt, White, Yamamoto   +51 more
core   +2 more sources

Alignment methods for biased multicanonical sampling [PDF]

, 2007
The efficiency of the multicanonical procedure can be significantly improved by applying an additional bias to the numerically generated sample space.
Awadalla, Ahmed, Lu, Tao, Reimer, Michael, Yevick, David   +3 more
core   +1 more source

An Approach to Natural Sampling Using a Digital Sampling Technique for SPWM Multilevel Inverter Modulation

Energies, 2019
This paper introduces an approach that applies a digital sampling technique for a sinusoidal pulse width modulation (SPWM) multilevel inverter modulation that reduces the total harmonic contents in the output voltage compared to that of classical regular
Mauricio Muñoz-Ramírez, Hugo Valderrama-Blavi, Marco Rivera, Carlos Restrepo   +3 more
doaj   +1 more source

Coupling methods for multistage sampling

, 2015
Multistage sampling is commonly used for household surveys when there exists no sampling frame, or when the population is scattered over a wide area. Multistage sampling usually introduces a complex dependence in the selection of the final units, which ...
Chauvet, Guillaume
core   +3 more sources