Results 171 to 180 of about 52,246 (269)

Causal Effect Estimation With TMLE: Handling Missing Data and Near Violations of Positivity

open access: yesBiometrical Journal, Volume 68, Issue 3, June 2026.
ABSTRACT We evaluate the performance of targeted maximum likelihood estimation (TMLE) for estimating the average treatment effect in missing data scenarios under varying levels of positivity violations. We employ model‐ and design‐based simulations, with the latter using undersmoothed highly adaptive lasso on the “WASH Benefits Bangladesh” data set to ...
Christoph Wiederkehr   +2 more
wiley   +1 more source

Effectiveness of Group Narrative Therapy Based on a Postmodern Psychotherapeutic Approach for Reducing Test Anxiety in Secondary School Students

open access: yesCounselling and Psychotherapy Research, Volume 26, Issue 2, June 2026.
ABSTRACT Objective This study aimed to evaluate the effectiveness of a narrative therapy (NT)–based psychoeducation programme in reducing test anxiety among eighth‐grade students in Türkiye. Methods Using a quasi‐experimental design and purposive sampling, 22 students (63.6% female) were assigned to either an experimental or control group (11 each ...
Adem Peker   +3 more
wiley   +1 more source

Disturbance‐Resilient Voltage/Power‐Quality Management for Islanded Inverters Using Self‐Tuning Type‐3 Fuzzy Controller

open access: yesEnergy Science &Engineering, Volume 14, Issue 6, Page 2816-2838, June 2026.
An adaptive fuzzy controller using an interval type‐3 fuzzy logic system replaces the SMC switching term to mitigate chattering while preserving global stability for islanded inverters. Simulations show lower THD, greater robustness to disturbances and parameter variations, and improved voltage‐tracking accuracy, with applicability to other uncertain ...
Man‐Wen Tian   +7 more
wiley   +1 more source

A QUASI-ANALYTICAL PRICING MODEL FOR ARITHMETIC ASIAN OPTIONS

open access: yes, 2013
We develop a quasi-analytical pricing method for discretely sampled arithmetic Asian options. We derive an asymptotic approximation of the arithmetic average with the geometric average of lognormal variables.
Sun, Jianqiang   +3 more
core  

On the Computation of Tensor Functions under Tensor‐Tensor Multiplications with Linear Maps

open access: yesNumerical Linear Algebra with Applications, Volume 33, Issue 3, June 2026.
ABSTRACT In this paper, we study the computation of both algebraic and non‐algebraic tensor functions under the tensor‐tensor multiplication with linear maps. In the case of algebraic tensor functions, we prove that the asymptotic exponent of both the tensor‐tensor multiplication and the tensor polynomial evaluation problem under this multiplication is
Jeong‐Hoon Ju, Susana López‐Moreno
wiley   +1 more source

Toward an Efficient Shifted Cholesky QR for Applications in Model Order Reduction Using pyMOR

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT Many model order reduction (MOR) methods rely on the computation of an orthonormal basis of a subspace onto which the large full order model is projected. Numerically, this entails the orthogonalization of a set of vectors. The nature of the MOR process imposes several requirements for the orthogonalization process.
Maximilian Bindhak   +2 more
wiley   +1 more source

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