Results 131 to 140 of about 2,824 (289)

Towards Diagrammatic Specifications of Symbolic Computation Systems.

, 2005
The aim of this work is to present an ongoing project to formalize,in the framework of diagrammatic logic (due to Dominique Duvaland Christian Lair) some data structures appearing in Sergeraerts symbolic computation systems Kenzo and EAT. More precisely,
Rubio García, Julio, Lambán Pardo, Laureano, Duval, D., Domínguez Pérez, César   +3 more
core  

Estimation of comparable standardized mean differences in cluster randomized trials with covariate adjustment

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Standardized mean differences (SMDs) are widely used to quantify treatment effects in cluster‐randomized trials. However, covariate adjustment in hierarchical linear models reduces the residual variance components used for standardization, which artificially inflates effect size estimates and undermines comparability across studies. We propose
Juyoung Jung, Zhijiang Liu, Ariel M. Aloe   +2 more
wiley   +1 more source

Completion and Invariant Theory in Symbolic Computation and Artificial Intelligence

, 1993
. An outline for the study of invariant theoretic (as structural) and completion (as syntactical) concepts in symbolic computation and artificial intelligence is presented on a level of abstraction which permits a unifying viewpoint on problems in ...
Eugen E. Ardeleanu
core   +1 more source

Computing Skinning Weights via Convex Duality

Computer Graphics Forum, EarlyView.
We present an alternate optimization method to compute bounded biharmonic skinning weights. Our method relies on a dual formulation, which can be optimized with a nonnegative linear least squares setup. Abstract We study the problem of optimising for skinning weights through the lens of convex duality.
J. Solomon, O. Stein
wiley   +1 more source

Progressively Projected Newton's Method

Computer Graphics Forum, EarlyView.
Abstract Newton's Method is widely used to find the solution of complex non‐linear simulation problems. To guarantee a descent direction, it is common practice to clamp the negative eigenvalues of each element Hessian prior to assembly—a strategy known as Projected Newton (PN)—but this perturbation often hinders convergence.
J. A. Fernández‐Fernández, F. Löschner, J. Bender   +2 more
wiley   +1 more source

Competitive Equilibria in Semi-Algebraic Economies [PDF]

This paper examines the equilibrium correspondence in Arrow-Debreu exchange economies with semi-algebraic preferences. We show that a generic semi-algebraic exchange economy gives rise to a square system of polynomial equations with finitely many ...
Karl Schmedders, Felix Kuber
core  

A Non‐Parametric Framework for Correlation Functions on Product Metric Spaces

International Statistical Review, EarlyView.
Summary We propose a non‐parametric framework for analysing data defined over products of metric spaces, a versatile class encountered in various fields. This framework accommodates non‐stationarity and seasonality and is applicable to both local and global domains, such as the Earth's surface, as well as domains evolving over linear time or time ...
Pier Giovanni Bissiri, Bernardo Nipoti, Emilio Porcu, Philip White   +3 more
wiley   +1 more source

Complex soliton dynamics in the M-truncated fractional nonlinear long-wave system: lump, breather and M-shape structures

Boundary Value Problems
In this study, we investigate the fractional modified regularized long-wave Burger (fMRLW–Burger) equation, a governing model widely used to explain the evolution of nonlinear surface water waves.
Badr Saad T. Alkahtani
doaj   +1 more source

Is There Intersectional Labor Market Discrimination?

Industrial Relations: A Journal of Economy and Society, EarlyView.
ABSTRACT We test for intersectional labor market discrimination across five dimensions: gender, race, ethnicity, sexual orientation, and disability. Specifically, we test for “amplifying intersectionality”—negative interactions between the effects of marginalized identities that make wage penalties greater than additive.
Joanne Song McLaughlin, David Neumark
wiley   +1 more source

Optimal Healthcare Contracts: Theory and Empirical Evidence

Journal of Economics &Management Strategy, EarlyView.
ABSTRACT In this paper, we investigate the contracts offered by a large healthcare purchaser to health service providers. Contracts are based on the DRG principle that all hospitalizations in a diagnosis group are reimbursed at the same rate. This principle is relaxed in practice, as in several cases, the amount reimbursed within each DRG exhibits ...
Paolo Berta, Gianni De Fraja, Stefano Verzillo   +2 more
wiley   +1 more source