Results 31 to 40 of about 1,347,426 (185)

Decays in Quantum Hierarchical Models

, 2007
We study the dynamics of a simple model for quantum decay, where a single state is coupled to a set of discrete states, the pseudo continuum, each coupled to a real continuum of states.
Ariel Amir, C. Cohen-Tannoudji, C. Cohen-Tannoudji, E. M. Purcell, Yoseph Imry, Yuval Oreg   +5 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, Joseph F. Hair, Rafael de Freitas Souza, Matheus Albergaria, Talles V. Brugni   +4 more
doaj   +1 more source

Discriminating neutrino mass models using Type II seesaw formula

, 2004
In this paper we propose a kind of natural selection which can discriminate the three possible neutrino mass models, namely the degenerate, inverted hierarchical and normal hierarchical models, using the framework of Type II seesaw formula.
A Aguilar, A Bandyopadhyay, A Gouvea de, A Kogut, A Melfo, A S Joshipura, B Bajc, B Brahmachari, Bhaskar Dutta, Borut Bajc, C E Aalseth, C L Bennett, C Watterich, Carl H Albright, Carl H Albright, D Falcone, D Indumati, D N Spergel, E D Zimmerman, E Kh Akhmedov, Ernest Ma, G Altarelli, G Altarelli, G Hinshaw, G Lazarides, H Murayama, H Murayama, H V Klapdor-Kleingrothaus, H V Klapdor-Kleingrothaus, H V Klapdor-Kleingrothaus, H V Peiris, I Dorsner, John B Bahcall, K A Babu, K Eguchi, K S Babu, L Verde, M Apollonio, M Gell-Mann, M H Ahn, M K Parida, M Maltoni, M Patgiri, M Patgiri, M Patgiri, Mahadev Patgiri, Mrinal Kumar Das, Mrinal Kumar Das, N Nimai Singh, N. Nimai Singh, Narendra Sahu, O Elgaroy, P O’Donnell, R N Mohapatra, R N Mohapatra, R N Mohapatra, R N Mohapatra, S Antusch, S Antusch, S Choubey, S F King, S F King, S Fukuda, S Hannestad, S Hannestad, S Hannestad, S M Barr, S M Barr, S N Ahmed, S Palomares-Ruiz, Stefano Bertolini, T Hambye, Thomas Hambye, Utpal Sarkar, W Rodejohann, Wei-Min Yang, Y Fukuda   +76 more
core   +1 more source

Evaluation of Risk Prediction with Hierarchical Data: Dependency Adjusted Confidence Intervals for the AUC

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, Robert J Glynn, Johanna M Seddon, Mei-Ling Ting Lee, Bernard Rosner   +4 more
doaj   +1 more source

Normal Binary Hierarchical Models

, 2016
Each simplicial complex and integer vector yields a vector configuration whose combinatorial properties are important for the analysis of contingency tables.
Bernstein, Daniel Irving, Sullivant, Seth   +1 more
core   +1 more source

Hierarchical Interaction Models

Journal of the Royal Statistical Society Series B: Statistical Methodology, 1990
SUMMARY Lauritzen and Wermuth have proposed a class of models for mixed qualitative and continuous data, defined by two properties: that the continuous variables are normally distributed given the qualitative variables and that a set of conditional independence relations hold between specified pairs of variables.
openaire   +2 more sources

Mathematical modelling of tissue formation on the basis of ordinary differential equations

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
A mathematical model is proposed for describing the population dynamics of cellular clusters on the basis of systems of the first-order ordinary differential equations.
Maxim N Nazarov
doaj   +1 more source

Hierarchical relational models for document networks [PDF]

, 2010
We develop the relational topic model (RTM), a hierarchical model of both network structure and node attributes. We focus on document networks, where the attributes of each document are its words, that is, discrete observations taken from a fixed ...
Blei, David M., Chang, Jonathan
core   +2 more sources

Uncovering the heterogeneity of a solar flare mechanism with mixture models

Frontiers in Astronomy and Space Sciences
The 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, Yang Chen, Yang Chen, XuanLong Nguyen, Ward Manchester   +4 more
doaj   +1 more source