Results 81 to 90 of about 50,025,908 (203)
Identifiability conditions in cognitive diagnosis: Implications for Q‐matrix estimation algorithms
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract The Q‐matrix of a cognitively diagnostic assessment (CDA), documenting the item‐attribute associations, is a key component of any CDA. However, the true Q‐matrix underlying a CDA is never known and must be estimated—typically by content experts.
Hyunjoo Kim +2 more
wiley +1 more source
Computational methods for splice site prediction [PDF]
, 2006 Taher L. Computational methods for splice site prediction. Bielefeld (Germany): Bielefeld University; 2006.Completing the genome sequence of a given organism is just the beginning of a series of subsequent tasks, namely, the discovery of the ...
Taher, Leila
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British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract Hidden Markov diagnostic classification models capture how students' cognitive attributes evolve over time. This paper introduces a Bayesian Markov chain Monte Carlo algorithm for diagnostic classification models that jointly estimates time‐varying Q matrices, latent attributes, item parameters, attribute class proportions and transition ...
Chen‐Wei Liu
wiley +1 more source
Presentation for the thesis "Computational Study of the Structure of Indium Alloys at Low Temperatures Using ab initio Methods."KEYWORDS: Density Functional Theory, Solid State Physics, Computational ...
Shin, Hongsik (Jay)
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Approximating multidimensionality with asymmetric unidimensional IRT models
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract Unidimensional item response theory (IRT) models are widely used even in settings where assessment data exhibit subtle forms of multidimensionality. Recent empirical evidence suggests that when item difficulty is associated with dimensionality, asymmetric item characteristic curves (ICCs) emerge in the unidimensional approximation.
Xiangyi Liao +5 more
wiley +1 more source
Quasicontinuum Method: Novel Theories and Implementation
, 2015 The 8th World Congress on Computational Mechanics and the 5th European Congress on Computational Methods in Applied Sciences and Engineering國際20080630~20080704紙本YVenice ...
Chen, C.-S.;Chang, S.-W.;Wang, C.-K. +1 more
core +1 more source
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract Although full‐information maximum likelihood (FIML) estimation is widely used for diagnostic classification models (DCMs), its computational efficiency deteriorates sharply in high‐dimensional settings. This scalability challenge is increasingly critical as DCMs are applied to large‐scale assessments, psychological testing and longitudinal ...
Minho Lee, Yon Soo Suh
wiley +1 more source
British Journal of Mathematical and Statistical Psychology, EarlyView.Abstract Sensitivity analysis for unmeasured confounders is essential for assessing the robustness of causal mediation conclusions. Most existing methods rely on parametric assumptions, which are ill‐suited for machine learning‐based estimators that are not tied to specific parametric models.
Xiao Liu, Cameron McCann
wiley +1 more source
Brain Pathology, EarlyView.How glioblastoma organoids are made shapes what they become. Fragment‐based cultures preserve extracellular matrix networks, cellular diversity, and primary tumor identity, whereas dissociation‐based cultures shift toward growth‐adapted states and simplified microenvironments. Abstract Patient‐derived tumor organoids are widely used in cancer research,
Jana Slovackova +11 more
wiley +1 more source
Computational Methods in Architecture from theories to architectural design
, 2018 Computational Methods in Architecture. From theories to architectural design. Almost thirty years have passed since the mid-eighties, when the digital has burst into architectural design and production.
Del Monaco Anna
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