Results 1 to 10 of about 12,382,920 (333)

Close binary systems among very low mass stars and brown dwarfs

open access: yes, 2005
Using Monte Carlo simulations and published radial velocity surveys we have constrained the frequency and separation (a) distribution of very low mass star (VLM) and brown dwarf (BD) binary systems. We find that simple Gaussian extensions of the observed
Bate   +21 more
core   +1 more source

SiGMoiD: A super-statistical generative model for binary data.

open access: yesPLoS Computational Biology, 2021
In modern computational biology, there is great interest in building probabilistic models to describe collections of a large number of co-varying binary variables. However, current approaches to build generative models rely on modelers' identification of
Xiaochuan Zhao   +2 more
doaj   +1 more source

On the Number of Subword Reconstructions in the Binary Alphabet when Superimposed on one Character

open access: yesСовременные информационные технологии и IT-образование, 2020
The problem of obtaining accurate estimates of the number of reconstructions for words over a binary alphabet is considered. Subwords of different lengths from a given set are joined by the method of overlapping end characters.
Galina Zhukova   +2 more
doaj   +1 more source

The binary fraction of planetary nebula central stars I. A high-precision, I-band excess search

open access: yes, 2012
In an attempt to determine how many planetary nebulae derive from binary interactions, we have started a project to measure their unbiased binary fraction.
De Marco, Orsola   +4 more
core   +1 more source

GEE analysis of clustered binary data with diverging number of covariates

open access: yes, 2011
Clustered binary data with a large number of covariates have become increasingly common in many scientific disciplines. This paper develops an asymptotic theory for generalized estimating equations (GEE) analysis of clustered binary data when the number ...
Wang, Lan
core   +1 more source

Binary words avoiding xx^Rx and strongly unimodal sequences [PDF]

open access: yes, 2015
In previous work, Currie and Rampersad showed that the growth of the number of binary words avoiding the pattern xxx^R was intermediate between polynomial and exponential.
Currie, James D., Rampersad, Narad
core   +1 more source

Channel selection in motor imaginary-based brain-computer interfaces: a particle swarm optimization algorithm [PDF]

open access: yesJournal of Integrative Neuroscience, 2019
The number of electrode channels in a brain-computer interface affects not only its classification performance, but also its convenience in practical applications.
Lei Zhang, Qingguo Wei
doaj   +1 more source

Massive close binaries II

open access: yes, 2003
In the present review we summarize direct and indirect evidence that the massive close binary frequency is very large. We then discuss the binary evolutionary processes and we present a general massive close binary evolutionary scheme.
Vanbeveren, Dany
core   +2 more sources

Minimum sample size for developing a multivariable prediction model: PART II ‐ binary and time‐to‐event outcomes

open access: yesStatistics in Medicine, 2018
When designing a study to develop a new prediction model with binary or time‐to‐event outcomes, researchers should ensure their sample size is adequate in terms of the number of participants (n) and outcome events (E) relative to the number of predictor ...
R. Riley   +6 more
semanticscholar   +1 more source

Digital Architecture for CBNS-Based Complex Number Encoding and Arithmetic

open access: yesIEEE Access
Accurate and efficient representation of complex numbers is essential for the effective functioning of digital communication and signal processing systems, particularly in applications such as radar and optical systems.
M. Saranya   +2 more
doaj   +1 more source

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