Results 71 to 80 of about 16,222,653 (310)

Comparison of survival analysis approaches to modelling age at first sex among youth in Kisesa Tanzania.

open access: yesPLoS ONE, 2023
BackgroundMany studies analyze sexual and reproductive event data using descriptive life tables. Survival analysis has better power to estimate factors associated with age at first sex (AFS), but proportional hazards models may not be right model to use.
Jacqueline Materu   +5 more
doaj   +1 more source

A Non-parametric Spectral Model for Graph Classification

open access: yesProceedings of the International Conference on Pattern Recognition Applications and Methods, 2015
Graph-based representations have been used with considerable success in computer vision in the abstraction and recognition of object shape and scene structure. Despite this, the methodology available for learning structural representations from sets of training examples is relatively limited.
Andrea Gasparetto   +2 more
openaire   +2 more sources

Fault Localization with Non-parametric Program Behavior Model [PDF]

open access: yes2008 The Eighth International Conference on Quality Software, 2008
Fault localization is a major activity in software debugging. Many existing statistical fault localization techniques compare feature spectra of successful and failed runs. Some approaches, such as SOBER, test the similarity of the feature spectra through parametric self-proposed hypothesis testing models.
Peifeng Hu   +3 more
openaire   +3 more sources

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

On parametric solution of fault detection problems [PDF]

open access: yes, 2011
We discuss the solution of the fault detection problem in presence of parametric uncertainties. The basic approach is an extension of the nullspace method for constant systems to the case of linear parameter varying (LPV) models.
Andras Varga, Varga, A.
core   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Non-parametric production analysis under alternative price conditions. [PDF]

open access: yes
The literature on non-parametric production analysis has formulated tests for profit maximizing behavior that do not require a parametric specification of technology.
Kuosmanen, T, Cherchye, Laurens, Post, T
core   +2 more sources

Un modelo spline para el pronóstico de la demanda de energía eléctrica

open access: yesRevista Colombiana de Estadística, 2007
El propósito de este trabajo es modelar, con fines de pronóstico, la demanda diaria de energía eléctrica en una región del suroccidente colombiano, mediante la implementación de modelos de regresión no paramétrica teniendo en cuenta factores de ...
ANDRÉS FELIPE BARRIENTOS   +2 more
doaj  

Understanding climate change dynamics in the Godavari middle sub-basin using parametric and non-parametric models

open access: yesGeosystems and Geoenvironment
Climate change is considered a long-term change in precipitation, temperature and other meteorological variables. The pattern of meteorological variables is changing due to anthropogenic activities globally. Climate change has posed threat to natural and
Md Masroor, Haroon Sajjad
doaj   +1 more source

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