Results 31 to 40 of about 799,944 (293)

A Three–Level Aggregation Model for Evaluating Software Usability by Fuzzy Logic

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2019
Rapid deployment of IT brings about new issues with software usability measurement. Usability is based on users’ experience and is strongly subjective, having a qualitative character. The users’ comfort is usually collected by surveys in their daily work.
Rakovská Eva, Hudec Miroslav
doaj   +1 more source

Sub-Additive Aggregation Functions and Their Applications in Construction of Coherent Upper Previsions

open access: yesMathematics, 2020
In this paper, we explore the use of aggregation functions in the construction of coherent upper previsions. Sub-additivity is one of the defining properties of a coherent upper prevision defined on a linear space of random variables and thus we ...
Serena Doria, Radko Mesiar, Adam Šeliga
doaj   +1 more source

Equilibrium analysis for linear and nonlinear aggregation in network models: applied to mental model aggregation in multilevel organisational learning

open access: yesJournal of Information and Telecommunication, 2022
In this paper, equilibrium analysis for network models is addressed and applied in particular to a network model of multilevel organisational learning.
Gülay Canbaloğlu, Jan Treur
doaj   +1 more source

Distribution functions of linear combinations of lattice polynomials from the uniform distribution [PDF]

open access: yes, 2007
We give the distribution functions, the expected values, and the moments of linear combinations of lattice polynomials from the uniform distribution. Linear combinations of lattice polynomials, which include weighted sums, linear combinations of order ...
Kojadinovic, Ivan, Marichal, Jean-Luc
core   +3 more sources

Quadratic transformation of multivariate aggregation functions

open access: yesDependence Modeling, 2020
In this work, we prove that quadratic transformations of aggregation functions must come from quadratic aggregation functions. We also show that this is different from quadratic transformations of (multivariate) semi-copulas and quasi-copulas.
Boonmee Prakassawat, Tasena Santi
doaj   +1 more source

Rewriting recursive aggregates in answer set programming: back to monotonicity [PDF]

open access: yes, 2015
Aggregation functions are widely used in answer set programming for representing and reasoning on knowledge involving sets of objects collectively. Current implementations simplify the structure of programs in order to optimize the overall performance ...
Alviano   +13 more
core   +2 more sources

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar   +8 more
wiley   +1 more source

Generalized Model of Migration-Driven Aggregate Growth - Asymptotic Distributions, Power Laws and Apparent Fractality

open access: yes, 2012
The rate equation for exchange-driven aggregation of monomers between clusters of size $n$ by power-law exchange rate ($\sim{n}^\alpha$), where detaching and attaching processes were considered separately, is reduced to Fokker-Planck equation.
Gordienko, Yu. G.
core   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

Super- and sub-additive envelopes of aggregation functions: interplay between local and global properties, and approximation [PDF]

open access: yes, 2018
Super- and sub-additive transformations of aggregation functions have been recently introduced by Greco, Mesiar, Rindone and Sipeky [The superadditive and the subadditive transformations of integrals and aggregation functions, Fuzzy Sets and Systems 291 (
Širáň, Jozef
core  

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