Results 21 to 30 of about 167,045,974 (255)

Bayesian hierarchical modelling of sea-level extremes in the Finnish coastal region [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2023
Occurrence probabilities of extreme sea levels required in coastal planning, e.g. for calculating design floods, have been traditionally estimated individually at each tide-gauge location.
O. Räty   +4 more
doaj   +1 more source

Criteria For Conceptual And Operational Notions of Complexity [PDF]

open access: yes, 2008
While complex systems have been studied now for more than two decades, there still is no agreement on what complexity actually is. This lack of a definition might be a problem when asking questions about the evolution of complexity.
Chu, Dominique
core   +1 more source

On the complexity of hierarchical problem solving

open access: yes, 2005
Competent Genetic Algorithms can efficiently address problems in which the linkage between variables is limited to a small order k. Problems with higher order dependencies can only be addressed efficiently if further problem properties exist that can be ...
Edwin D. de Jong   +5 more
core   +1 more source

A hierarchical model to estimate the abundance and biomass of salmonids by using removal sampling and biometric data from multiple locations [PDF]

open access: yes, 2010
We present a Bayesian hierarchical model to estimate the abundance and the biomass of brown trout (Salmo trutta fario) by using removal sampling and biometric data collected at several stream sections.
Christophe Laplanche   +3 more
core   +1 more source

SBML Level 3 package: Hierarchical Model Composition, Version 1 Release 3

open access: yesJournal of Integrative Bioinformatics, 2015
Constructing a model in a hierarchical fashion is a natural approach to managing model complexity, and offers additional opportunities such as the potential to re-use model components.
Smith Lucian P.   +7 more
doaj   +1 more source

One size does not fit all: Customizing MCMC methods for hierarchical models using NIMBLE

open access: yesEcology and Evolution, 2020
Improved efficiency of Markov chain Monte Carlo facilitates all aspects of statistical analysis with Bayesian hierarchical models. Identifying strategies to improve MCMC performance is becoming increasingly crucial as the complexity of models, and the ...
Lauren C. Ponisio   +3 more
doaj   +1 more source

Secondary transfer effects of intergroup contact via social identity complexity. [PDF]

open access: yes, 2014
Secondary transfer effects (STEs) of intergroup contact refer to the generalization of contact effects from a primary encountered outgroup to attitudes towards secondary outgroups (Pettigrew, 2009). Using two large, cross-sectional data sets from Germany
Hewstone, Miles   +4 more
core   +1 more source

Intrusion Detection System Based on Fast Hierarchical Deep Convolutional Neural Network

open access: yesIEEE Access, 2021
Currently, with the increasing number of devices connected to the Internet, search for network vulnerabilities to attackers has increased, and protection systems have become indispensable.
Robson V. Mendonca   +6 more
doaj   +1 more source

Routing performance in a hierarchical DHT-based overlay network [PDF]

open access: yes, 2008
The scalability properties of DHT based overlay networks is considered satisfactory. However, in large scale systems this might still cause a problem since they have a logarithmic complexity depending.
Guerrero López, María Carmen   +9 more
core   +1 more source

A Complexity-Theoretic Perspective on Innovation Policy [PDF]

open access: yes, 2017
It is argued that innovation policy based on notions of market failure or system failure is too limited in the context of current societal challenges. I propose a third, complexity-theoretic approach.
Frenken, K.   +4 more
core   +1 more source

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