Results 31 to 40 of about 399,077 (314)
A hierarchical model for ageing [PDF]
Journal of Physics A: Mathematical and General, 1997 We present a one dimensional model for diffusion on a hierarchical tree structure. It is shown that this model exhibits aging phenomena although no disorder is present. The origin of aging in this model is therefore the hierarchical structure of phase space.
Geppert, U. +2 more
openaire +4 more sources
Hierarchical graphical bayesian models in psychology [PDF]
, 2014 The improvement of graphical methods in psychological research can promote their use and a better comprehension of their expressive power. The application of hierarchical Bayesian graphical models has recently become more frequent in psychological ...
Guillermo Campitelli +5 more
core +2 more sources
Hierarchical Models in the Brain
PLoS Computational Biology, 2008 This paper describes a general model that subsumes many parametric models for continuous data. The model comprises hidden layers of state-space or dynamic causal models, arranged so that the output of one provides input to another. The ensuing hierarchy furnishes a model for many types of data, of arbitrary complexity.
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Enhancing DWH models with the utilisation of multiple hierarchical schemata [PDF]
, 2010 Data Warehouse (DWH) Models are based on static dimensions having single hierarchies. With the evolution of World Wide Web, including external knowledge can enrich those models and provide better results of data analysis. Therefore, it would be useful to
Alzebdi, M. +2 more
core +1 more source
Analysis of criteria system model for construction contract evaluation
Technological and Economic Development of Economy, 2007 A number of multicriteria decisions must be made during construction investment processes. A number of support systems for multicriteria tasks of construction investment processes are available. Part of them is reviewed in this article.
Sigitas Mitkus, Eva Trinkūnienė
doaj +1 more source
Zero-Inflated Generalized Linear Mixed Models: A Better Way to Understand Data Relationships
Mathematics, 2021 Our article explores an underused mathematical analytical methodology in the social sciences. In addition to describing the method and its advantages, we extend a previously reported application of mixed models in a well-known database about corruption ...
Luiz Paulo Fávero +4 more
doaj +1 more source
Hierarchical Infinite Relational Model
CoRR, 2021 11 pages, 6 figures, 4 tables.
Feras A. Saad, Vikash K. Mansinghka
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Stats, 2023 The area under the true ROC curve (AUC) is routinely used to determine how strongly a given model discriminates between the levels of a binary outcome. Standard inference with the AUC requires that outcomes be independent of each other.
Camden Bay +4 more
doaj +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Uncovering the heterogeneity of a solar flare mechanism with mixture models
Frontiers in Astronomy and Space SciencesThe physics of solar flares occurring on the Sun is highly complex and far from fully understood. However, observations show that solar eruptions are associated with the intense kilogauss fields of active regions, where free energies are stored with ...
Bach Viet Do +4 more
doaj +1 more source